| Entries |
| Document | Title | Date |
|---|
| 20080196254 | Rotary Cutters - A rotary cutter head assembly for attachment to a head of a rotary cutter comprises an elongate band for attachment around an outer diameter of a rotary cutter head, the band having first and second end regions, an attachment arrangement for securing the first end region to the second end region, and a cutting element holder secured to the band for releasably receiving a filamentary cutting element. | 08-21-2008 |
| 20080196255 | POWERED WEED TRIMMER CUTTING HEAD AND METHOD - A cutting head attached to a powered rotary weed cutting machine has a generally cylindrical structure containing a plurality of cutting blades, wherein the upper and lower portions of said structure may be rotated with respect to one another without the use of tools and without requiring the structure to be disassembled, to expose each entire cutting blade for replacement when required. The lower portion of the cutting head may be anchored to cutting machine shaft, for example, and the upper portion may be rotated, against spring bias, relative to the temporarily-stationary lower portion. A lock may be included to ensure that the upper portion does not open until desired, for example, by including a rigid plate or arm that, in a first position, extends through portions of both the upper portion and the lower portion. The lock plate or arm may extend into the cutting head from the top or the side, for example. When manually and purposefully pushed inward, the lock plate or arm will move so that is no longer resides in both upper and lower portions, so that said upper portion is free to rotate relative to the lower portion. | 08-21-2008 |
| 20080235957 | ELECTRIC BUSH CUTTER - An electric bush cutter includes an electric motor, which rotates a cutting edge through a centrifugal clutch, and an operating unit capable of adjusting rotational speed of the electric motor in accordance with an operation amount of the operating unit. A starting region including a rotational speed range from a stopped state of the electric motor to fastening of the centrifugal clutch, a common-use region corresponding to a rotational speed range suitable for bush-cutting by the electric bush cutter, and a transition region corresponding to a rotational speed range of the electric motor from the starting region to the common-use region are set. A rate of change in the rotational speed of the electric motor with respect to the operation of the operating unit in the transition region is greater than those in the starting region and common-use region. | 10-02-2008 |
| 20080235958 | Lawn Mower - A lawn mower comprises an operation arm, a driven shaft rotatably supported inside the operation arm and having two opposite ends, a cutter operatively connected to one end of the driven shaft, a power source operatively connected to the other end of the driven shaft for generating a drive power to be transmitted to the cutter through the driven shaft, wherein said power source is selective from an engine and an electric motor, an arm side joint case provided on the end of the operation arm, a power source side joint case provided on a housing of the power source and detachably and selectively connected to the arm side joint case, and a centrifugal clutch incorporated in the arm side joint case and having a first member connected to the driven shaft, a second member detachably and selectively connected to the power source and a third member provided to engage the first member and the second member according to the centrifugal force applied thereto. | 10-02-2008 |
| 20080244914 | Cable actuated indexing trimmer head compressor - The current invention provides a cable actuated string trimmer head compressor, adaptable to bump-n-feed type string trimmers. A handle operated by remotely actuates a lever that in turn exerts force on a first half of a string trimmer head, compressing the first half of the trimmer head relative to a second half of the trimmer head. The string trimmer head compresses as if it had been pressed to the ground. | 10-09-2008 |
| 20080250653 | Mower Head With Protection for a Cutting Cord - The mower head ( | 10-16-2008 |
| 20080263874 | Rotary Cutter for Mower - A rotary cutter for a mower for mowing grass and the like with a cord of a desired length extending in a radial direction of a cutting head from the cutting head driven for rotation through a drive shaft is described. The rotary cutter includes at least one fastening element for fixing one end of the cord to a cutting head main body. An inner end portion of the cord inserted from a sidewall of the head main body is fastened by the fastening element. The cord is removed and replaced with a new cord when the cord is worn out. The cord fastening element is disposed near a drive shaft coupling shaft tube portion in the cutting head main body. A cord outlet for removing the cord is provided to the drive shaft coupling shaft tube portion side. The inner end portion of the cord extends outside from the cord outlet and along a sidewall of the drive shaft coupling shaft tube portion of the cutting head main body. | 10-30-2008 |
| 20080271325 | Barrier bracket assembly for a yard tool or the like - A yard tool or unit having the motor barrier bracket upright when the tool barrier bracket and the control barrier bracket are rotated. The tool barrier bracket having flared operator and tool nozzle shields, a front suspension, one or more line filament or bladed tools, uniform air intake open to a fan to discharge debris and hold lubricants in a chamber. The front suspension fixed or to dial into tool heights and balance the unit. The tool output combines for no more than 200 rpm variance of motor input. The control barrier bracket having to mount a handlebar near the unit fixed point with a neighboring tool control grip, power control grip and transmission. The neighboring control grip to rotate the line filament or bladed tool in the right or left single fold operating framework free of collapsing. | 11-06-2008 |
| 20080282552 | Grass-Cutting Head with Spiral Guide Channels for the Cutting Line - The grass-cutting head ( | 11-20-2008 |
| 20080282553 | Hedge trimmer - A blade for a hedge trimmer, including: a front portion with an edge; a rear portion in contact with the front portion and bent at an angle with respect to the front portion; and a first concavely shaped cutting surface along at least a segment of the edge. In a first embodiment, the front and rear portions include a distally disposed edge and the blade includes a second concavely shaped cutting surface along at least a segment of the distally disposed edge. In a second embodiment, the first and second concavely shaped cutting surfaces are continuous one with the other. In a third embodiment, the rear portion is bent at an angle of between 10 degrees and 30 degrees with respect to the front portion. In a fourth embodiment, the rear portion is bent at an angle of 20 degrees with respect to the front portion. | 11-20-2008 |
| 20080282554 | Weed and grass trimmer - A weed and grass trimmer has a cutting line which is fed as the weed trimmer is in use. The weed trimmer's cutting head includes a spool for cutting line, and a housing. The spool has flanges around its circumference, which may engage a corresponding upper or lower set of flanges in the housing. Actuation of a control located near the handle operates either a cable or a solenoid, causing the spool to reciprocate between the upper and lower flanges. The difference in centrifugal force and angular velocity during this reciprocation causes additional cutting line to be fed. | 11-20-2008 |
| 20090031567 | Fixed line trimmer head with ease of loading - A head for string trimmer machines uses fixed length segments of line including at least two line segments. The head includes a generally cylindrically shaped main housing member with at least two sets of first and second line entry holes on the housing member intermediate the first and second ends. At least two sets of first and second line exit openings also are found on the main housing member intermediate the first and second ends and spaced apart a greater distance than the distance between the first and second line entry holes. Arcuate guide channels are located between the respective entry holes and exit openings where the corresponding entry openings and exit openings of corresponding sets are located at different distances measured axially on the main housing member from the first end thereof. | 02-05-2009 |
| 20090038163 | WEED TRIMMING APPARATUS, WEED TRIMMER HEAD, AND TRIMMER LINE RETENTION DEVICE - A weed trimmer apparatus having a head defining at least one side wall, the side wall forming one or more apertures therethrough, and one or more line retention members for retaining one or more trimmer lines. The line retention members are operatively connected to the head, wherein each line retention member is sized and configured to extend through a loop of at least one trimmer line during operation of the weed trimmer apparatus and wherein each line retention member is dynamically connected to the head to allow for installation and removal of the loop of trimmer line. | 02-12-2009 |
| 20090113724 | Portable handheld work apparatus - A portable handheld work apparatus has a housing ( | 05-07-2009 |
| 20090172955 | STRING TRIMMER HEAD - An improved string trimmer head is described. The trimmer head comprises a housing with a spool and spring assembly enclosed within the housing. The trimmer head further comprises a lid connected to the housing and a bump knob with a base and an intermediate member. The base of the bump knob is located inside the housing. The intermediate member extends outside the housing through the lid. The lid comprises an annulus which surrounds the base. The height of the annulus is greater than a maximum compressing distance of the spool when compressed by the bump knob. A segment of the intermediate member remains outside the lid when the spool is compressed. The bump knob further comprises a finger slot with an outer edge and a recessed portion. A bottom side of the outer edge is positioned farther away from the spool than the recessed portion. | 07-09-2009 |
| 20090260237 | String Trimmer Head Configuration and Method - A trimmer head assembly and the method of configuring the trimmer head assembly. The trimmer head assembly has a housing that attaches to a string trimmer machine. A spool is provided inside the housing. The spool rotates about an axis of rotation. The spool can move longitudinally along the axis of rotation between a first position and a second position. A ratcheting mechanism is provided between the trimmer head housing and the spool. When the spool is in its first position, the ratcheting mechanism enables the spool to continuously rotate about the axis of rotation in the direction opposite that in which the trimmer head assembly spins. The ratchet mechanism also prevents the spool from rotating within the housing in the same direction in which the trimmer head is spinning. | 10-22-2009 |
| 20090271992 | Lawn Trimmer Apparatus - A lawn trimmer of the present disclosure has a trimmer head with a first opening for receiving string and a second opening for extending the string through so that the string can be used to cut weeds. In addition, the lawn trimmer has a first spool of string mounted to the lawn trimmer, and the string is wound around the spool and has a free end that is inserted into the first opening and out of the second opening. The spool rotates such that when the string breaks during use a user can manually forward the string through the second opening for continued use of the string. | 11-05-2009 |
| 20090282687 | LINE-TYPE GRASS CUTTING HEAD WHICH CAN BE ALTERNATIVELY USED ON MACHINES WITH LEFT OR RIGHT ROTATION - The head comprises a housing ( | 11-19-2009 |
| 20100031515 | Grounds tool with means for transposable grips - A grounds tool with means for transposable grips with an upright input arm having a first grip and a trigger, an output arm having a line filament or bladed working end and a button or a dual button end couples the input arm, the button engages a mid-slot or the dual button engages mirrored slots forming a boom, a motor on the boom for driving the line filament and bladed tools, the output arm held within left and right mirrored isometry folds having a second grip to transpose a third and forth grip, the second control grip and the tools having to transpose congruently with the button folds, a front suspension complementary and supplementary to the operator shield radian walls that are about twice the boom tilt, a chamber having to duplicate, reciprocate or reverse the tools with uniform airflow and the fifth grip having to translate the motor. | 02-11-2010 |
| 20100050442 | CHAIN-TYPE FLEXIBLE CUTTING EDGE - A chain-type flexible cutting edge, particularly for bush-cutter is described, comprising at least one linear connecting and cutting link ( | 03-04-2010 |
| 20100064530 | VEGETATION CUTTING DEVICE - A trimmer head wherein the driveline of the power tool is connected to a core member. A spool is mounted to the core member and directly driven by the core member. A housing is mounted for axially sliding on the core member and a spring urges axial movement of the housing relative to the core member. Interlocking structure on the spool and housing produces interlocking for common rotation of the spool and housing responsive to urging by the spring. Release of the interlocking structure is affected by opposing said spring urging. Desirable additional features include selective alternate positioning of the spring for automatic and manual only release of said interlocking and a line loading assist provided by a tubular post through the spool alignable with housing eyelets for threading line through the eyelets and spool and winding thereof onto the spool by manual turning of the spool relative to the housing. | 03-18-2010 |
| 20100101097 | Cutting Knife, in Particular for Cutting Food - A cutting knife, in particular for cutting food, comprises a blade being disposed rotatably about a rotation axis and a drive being designed as an electric motor, which comprises a rotating rotor and a stationary stator, which interact for driving the blade and which impart a rotational movement on the blade during operation of the cutting knife. Herein, the rotor is rotatable about the rotation axis, is connected in a rotationally fixed manner with the blade and rotates during operation of the cutting knife together with the blade about the rotation axis. In this way, a cutting knife is provided which is improved with regard to its construction such that the driving of the blade is simplified and the manageability of the cutting knife is improved. | 04-29-2010 |
| 20100132200 | BUSH CUTTER BLADE AND BUSH CUTTER - A bush cutter blade according to the present invention includes a base plate ( | 06-03-2010 |
| 20100139102 | SCRAPBOOKING TOOLS - A tool body for use in scrapbooking having a groove for accepting a plurality of interchangeable tools therein. The tool body may comprise two or more separate bodies that may be connected together. A rotary cutter having one or more offset patterned blades may be used separately or include an adapter for traveling in the groove. The tool body may also be used with a line guide having a plurality of spaced apart holes for drawing lines, or a straight cutter having removable blade assemblies for cutting strips of paper having various widths. An ergonomic handle may be used with a sticker placer/remover, embosser tip, interchangeable stamper or other tools. The design of the handle permits the tool to be held without obstructing a user's line of sight. | 06-10-2010 |
| 20100170097 | SAFETY RELEASE FOR DIRECT DRIVE OF ROTARY KNIFE - A rotary knife assembly includes a rotary knife with a spinning blade, a motor operable to power the rotary knife, a flexible drive cable with a proximal end drivingly connected to the knife to transmit rotational power to the blade while being flexed along the length of the cable, and a safety release drivingly connected to a distal end of the cable. The safety release is drivingly coupled to the motor and is operable to transmit rotational power from the motor to the drive cable and thereby the rotary knife. The safety release includes input and output members releasably drivingly engaged with one another. The safety release is operable to drivingly disengage the members. | 07-08-2010 |
| 20100180451 | STRING HEAD FOR A TRIMMER - A trimmer head configured for operating in a fixed line configuration and a bump-feed configuration. The trimmer head includes a base including a cup having a top wall and a substantially cylindrical side wall defining an aperture. The base also includes a collar extending axially from the top wall of the cup for coupling the trimmer head with the output shaft. A fixed line head is at least partially received within the cup when the trimmer head is in the fixed line configuration and a bump-feed spool is at least partially received within the cup of the base when the trimmer head is in the bump-feed configuration. | 07-22-2010 |
| 20100192386 | Transmission Assembly for a String Trimmer - A transmission assembly for a string trimmer is disclosed. The transmission assembly comprises a liner that includes a sleeve. The sleeve includes an inner surface that defines a passageway for a rotatable core, and the sleeve further includes an outer surface. The liner further includes a plurality of legs that project from the outer surface, and a retainer projection disposed at a position axially adjacent to the plurality of legs. The transmission assembly further comprises a retainer that is held to the liner by the retainer projection. The retainer is configured to axially and radially restrain the liner relative to an outer down-tube. | 08-05-2010 |
| 20100229401 | Rotary cutter for mower | 09-16-2010 |
| 20100287780 | Filament Clamp for a Vegetation Trimmer - A vegetation trimmer with a spool and hub assembly has a cutting filament wound around the spool. The free end of the filament extends through an aperture in the hub into the cutting plane. The spool and hub are rotated at a high rate to allow the filament to cut vegetation. The spool includes a plurality of arms which engage with arms on the hub. When the spool is acted upon, the arms on the spool disengage with the arms on the hub to permit relative rotation of the spool to the hub to feed additional filament into the cutting plane. An indexing feature is used to regulate the amount of additional cutting filament that is allowed to be fed into the cutting plane. When the spool and hub are engaged, the cutting filament is forcible clamped between the arms on the spool and the arms on the hub to prevent the centrifugal force generated by the filament in the cutting plane from acting upon the filament wound around the spool at cutting speed so that the filament does not have means to tangle or weld together and break prematurely. Upon disengagement of the spool and hub, the cutting filament is released to permit the additional cutting filament to be fed into the cutting plane. | 11-18-2010 |
| 20100313429 | GRASS TRIMMER - A trimmer has a cutting head, a shaft rod, and at least one handle. The cutting head is rotatably mounted at one end of the shaft rod by a connection device which has a central axis. At least one handle is mounted on the other end of the shaft rod. The cutting head moves between a horizontal position and a vertical position by rotating the cutting head | 12-16-2010 |
| 20100313430 | METHOD FOR CONTROLLING REVERSAL OF A BLADE OF A BUSH CUTTER - A method for controlling reversal of a blade of a bush cutter. The method functions by detecting a parameter of a motor with a control circuit and, when a user presses a reversal button, by causing the control circuit to control the motor not to reverse when the detected parameter, e.g., speed of the motor, is greater than or equal to a preset threshold and to control the motor to reversely rotate and drive the blade to reversely rotate when the detected parameter is less than the preset threshold. | 12-16-2010 |
| 20110000091 | Trimmer Head For Use In Flexible Line Rotary Trimmers Having Improved Line Loading Mechanism - A trimmer head for a rotary line trimmer including a housing operatively connected to the trimmer and a spool for carrying cutting line thereon. The spool is operatively connected to the housing for rotation therewith and defines a pair of opposed line receptor channels having opposed open ends, traversing opposed portions of the spool and defining opposed outlet openings above a lowermost end of the spool. The channels can be aligned with the eyelets in the housing skirt such that lengths of cutting line can be inserted therethrough and wrapped about the spool upon relative rotation of the spool and housing without having to interrupt the operative connection therebetween. The channel outlet openings provide access to the inner ends of the line so that the line also can be pulled from the head without having to interrupt the operative connection therebetween. | 01-06-2011 |
| 20110041348 | MUDDLER - A muddler comprises an elongated member that ends in a head with spikes for crushing fruit pieces or other flavor ingredients. The head can be removed and, in a reverse mode, the muddler can be used as an ice crusher. Optional side located stirring ribs or formations may be provided to facilitate stirring. There can be a finger grip portion at the top to facilitate handling and muddling action. | 02-24-2011 |
| 20110083328 | BUSH CUTTER - Driving power is transmitted to an output shaft, via driving and driven bevel gears, to a cutter blade. A gearbox supports the output shaft via first and second bearings. The second bearing is engaged by an engaging member to be prevented from axial movement, toward the blade, relative to the gearbox and supports the output shaft near the cutter blade. The output shaft is connected to the driven bevel gear such that it is prevented from rotation relative to the driven bevel gear but allowed to move axially. When the engaged state, by the engaging member, of the second bearing is canceled, the shaft is allowed to axially move toward the cutter blade until the shaft becomes rotatable relative to the driven bevel gear, at the same time of which a retaining stopper prevents the shaft from further axial movement. | 04-14-2011 |
| 20110131815 | COMBINATION BLOWER AND TRIMMER ASSEMBLY - A combination blower and trimmer assembly including a centrifugal clutch transmission for shifting a drive shaft driven by a motor between engagement with an impeller of the blower and engagement with a drive shaft of the trimmer for selective operation of either the blower or trimmer. | 06-09-2011 |
| 20110131816 | BUSH CUTTER WITH A VERSATILE OPERATING ROD - A bush cutter comprises an operating rod, a cutting unit, a main unit and a transfer shaft. The cutting unit is disposed at a front end of the operating rod and rotatably supports a cutting blade. The main unit is disposed at a rear end of the operating rod and houses a motor that drives the cutting blade. The transfer shaft is disposed within the operating rod and transfer output torque of the motor from the main unit to the cutting unit. An adapter is fixed to the rear end of the operating rod and the main unit is provided with a rod insertion hole configured to receive the rear end of the operating rod with the adapter fixed. This configuration may prevent the operating rod, which has versatility, from being erroneously assembled. | 06-09-2011 |
| 20110131817 | BUSH CUTTER TO WHICH BATTERY PACK CAN BE ATTACHED AND DETACHED - A bush cutter comprises an operating rod, a cutting unit disposed at a front end of the operating rod, a main unit disposed at a rear end of the operating rod and a transfer shaft disposed within the operating rod. The cutting unit rotatably supports a cutting blade. The main unit houses a motor that drives the cutting blade. The main unit is provided with a battery pack interface configured to slidably receive a battery pack for supplying electric power to the motor. A direction in which the battery pack slides in the battery pack interface is angled with respect to an central axis of the operating rod. According to this configuration, a user can easily attach and detached the battery pack. | 06-09-2011 |
| 20110162214 | EDGE-TRIMMER WITH A DOUBLE-JOINTED EXTENSIBLE HANDLE - An edge-trimmer for trimming grass, leaves, shrubs and small trunked plants, comprising a cutting tool, a shaft connected at one of ends thereof to the cutting tool for supporting and moving the tool, a grip which is solidly-constrained to an opposite end of the shaft in order to enable an operator to use the trimmer and a motor (M) connected to the shaft for activating the cutting tool ( | 07-07-2011 |
| 20110185580 | LARGE DIAMETER NOTCHED BLADE AND BLADE HOUSING FOR POWER OPERATED ROTARY KNIFE - A power operated rotary knife having a large diameter, annular rotary knife blade and interfitting blade housing wherein the rotary knife blade includes notched bearing race providing for an enhanced or enlarged area of bearing contact between the blade bearing race and the corresponding blade housing bearing structure. The enhanced area of bearing contact is offset radially inwardly of and axially from a radial outer surface of a drive gear region of the blade thereby reducing wear on the radial outer surface of the blade drive gear region. | 08-04-2011 |
| 20110203118 | BRUSH CUTTER - The conventional brush cutter has many drawbacks, such as the large vibration and noise of the main pipe, because the rotary drive shaft is passed through the main pipe. The brush cutter of the present invention has a main pipe, a flat motor provided on a tip end of the main pipe, a rotary cutter provided on a rotary shaft of the flat motor, and a battery provided on a base end of the main pipe for driving the motor. | 08-25-2011 |
| 20110214294 | Weed trimmer with accuracy Shield - A weed trimmer having an accuracy shield. The accuracy shield is a generally planar, circular configuration that is attached to a weed trimmer at a location in a plane generally parallel to the plane of the rotating line and in close proximity thereto between the rotating line and the housing having a debris shield. The accuracy shield protects the line from being severed too short and also provides a convenient guide for edging wherein the cut is uniform and easy to control. | 09-08-2011 |
| 20110214295 | Aerodynamic Trimmer Head For Use In Flexible Line Rotary Trimmers - An aerodynamic trimmer head for use in flexible line rotary trimmers having an aerodynamic, generally ellipsoidal profile and a plurality of aerodynamic elements defined by the upper and lower head surfaces for directing air, during rotation of the head, off of and over the upper and lower head surfaces and preferably away from the line extending from the housing, thereby reducing the drag on the head and the line projecting from the housing. The aerodynamic elements on the upper head surface preferably are defined by a plurality of equidistantly spaced inclined troughs extending downwardly and forwardly along curvilinear paths on the upper head surface and the aerodynamic elements on the lower head surface preferably are defined by a plurality of dimples formed in an annular surface extending about the lowermost end of the spool and a plurality of rearwardly inclined troughs formed about and above the dimples. | 09-08-2011 |
| 20110214296 | ENGINE-DRIVEN CUTTER - A handheld engine-driven cutter is provided with a disk blade and a four-stroke engine that drives the disk blade, a filter through which air provided to the four-stroke engine passes, a carburetor that mixes fuel and the air that passed through the filter, a casing that houses the filter and the carburetor, and a filter bracket intervened between the filter and the carburetor, which guides the air having passed the filter to the carburetor. An oil separator is formed integrally with the filter bracket that protrudes out toward the carburetor. | 09-08-2011 |
| 20110214297 | ENGINE-DRIVEN CUTTER - A handheld engine-driven cutter is provided with a disk blade and a main body that drives the disk blade. The main body comprises a four-stroke engine, an oil supplying opening from which engine oil is supplied, and an oil exhausting opening from which the engine oil is exhausted. In this engine cutter, the oil supplying opening and the oil exhausting opening are both disposed on one side of the main body where one end of a driving axis of the four-stroke engine is located. | 09-08-2011 |
| 20110214298 | ENGINE-DRIVEN CUTTER - A handheld engine-driven cutter is provided with a disk blade and a four-stroke engine that drives the disk blade. By employing the four-stroke engine, exhaustion of unburned gas and fuel consumption can be reduced. The engine cutter is further provided with a filter through which air provided to the four-stroke engine passes, a carburetor that mixes fuel and the air that passed through the filter, and a casing that houses the filter and the carburetor. The filter and the carburetor are arranged to align on a straight line along a direction of flow of the air passing through the filter and the carburetor. | 09-08-2011 |
| 20110232106 | Trimmer Head with Drop-Down Reservoir for Ease of Loading - An improved head for a vegetation trimmer has a drop-down line reservoir that remains in cooperation with the head housing when the reservoir is in a load position. The reservoir fits inside the head housing and is biased against the housing for secure use. The reservoir is rotated to unlock it from the housing, whereby it drops down to allow access to the line in the reservoir. A user can add, remove, and manipulate line as desired without the inconvenience of detachable pieces. The reservoir can be pushed back into the housing and locked into place for use. The reservoir can also be placed in an advance position and rotated to advance more line through line openings in the housing as needed. | 09-29-2011 |
| 20110239468 | TRIMMER HEAD HAVING A HINGED HOUSING FOR USE IN FLEXIBLE LINE ROTARY TRIMMERS SYSTEMS - An invention is provided for a hinged trimmer head for use in flexible line rotary trimmer systems. The invention includes a hinged housing and cover capable of being opened to allow access to the interior of the trimmer head without risk of losing the housing parts. In addition, an open faced channel is provided is a spool that allows easy loading of cutting line. Further, a bumper button is disposed in an annular opening of the cover, providing an automated line feed mechanism and an easy cutting line spool winding mechanism. | 10-06-2011 |
| 20110247220 | POWER OPERATED ROTARY KNIFE WITH DISPOSABLE BLADE SUPPORT ASSEMBLY - A power operated rotary knife having a reusable handle assembly and disposable blade support assembly including a head portion and a blade support portion extending from the head portion, wherein upon completion of a tissue debriding operation on a donor, the used blade support assembly is removed from the handle assembly and disposed of, the handle assembly is autoclaved/sterilized and a new, sterilized blade support assembly is affixed to the handle assembly prior to a subsequent use. The knife includes an attachment assembly to releasably attach the disposable blade support assembly to the handle assembly and a retainer structure positioned in an annular groove formed in a bottom surface of the blade housing portion, the retainer structure bearing against an annular rotary knife blade and the blade housing portion to permanently retain an annular body section of the blade in the annular groove. | 10-13-2011 |
| 20110258861 | Container and Packaging Method for Vegetation Trimmer Line - A substantially toroidal container for coiled vegetation trimmer line has a front shell and a rear shell capable of bonding at the center with heat and pressure, radio frequency, ultrasonic welding, adhesive, or attachment mechanisms. The bonding of the shells leaves a separation between the outer edges of the shells. The separation is nonlinear around the circumference of the container, so that a user can access the trimmer line, but the trimmer line cannot uncoil and spill out of the container. The separation is preferably defined by a series of offset uniform teeth on the outer edges of the shells. One or more teeth may be removed, providing a line aperture through which the end of the trimmer line extends out of the container. Male and female indices on each shell are used to align the teeth during packaging. | 10-27-2011 |
| 20120030952 | ROTARY KNIFE WITH BLADE BUSHING - A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing and blade bushing are split in order to expand and receive the blade. The blade includes an outer groove that is also operable to receive the blade bushing. Thus, the blade bushing is spaced between the blade housing and blade and rotatably secures the blade within the blade housing. | 02-09-2012 |
| 20120055033 | STRING TRIMMER - A string trimmer has a blade storage mechanism wherein the blade storage mechanism has a cavity arranged on the body of the string trimmer for storing a blade. | 03-08-2012 |
| 20120066912 | VARIABLE CUTTING HEIGHT TRIMMER HEAD - A trimmer and a trimmer head for use with the trimmer, the trimmer head including a body rotatable about an axis, the body defining a plurality of axially spaced channels each sized to receive at least a portion of a trimmer line therein, and a clamping mechanism in operable communication with at least two of the axially spaced channels to selectively retain a trimmer line positioned within any one of the at least two axially spaced channels. The trimmer head may include a wear disk pivotable relative to the trimmer head body. In addition, a release button of the clamping mechanism may be arranged on the body to provide additional clamping force when the trimmer head rotates about the axis. | 03-22-2012 |
| 20120066913 | Trimmer Head with Automatic Trimmer Line Feed Mechanism - An automatic-feed trimmer head for a vegetation trimming machine. A spool is positioned within the interior of a housing. A cam guide formation is disposed atop the top flange of the spool. The cam guide formation defines a pathway. A cam arm is provided that is mounted to the housing with a pivot connection. The cam arm has a cam projection that extends into the pathway. A spring is provided that biases the cam arm into a first orientation. In the first orientation, the shape of the pathway enables the cam projection to move only in a first direction. The cam arm moves about the pivot connection from its first orientation to a second orientation when the trimmer head assembly is rotated above a predetermined rotational speed. When the cam arm is in its second orientation trimmer line is unwound from the spool. | 03-22-2012 |
| 20120167399 | EDGE-TRIMMER - An edge-trimmer comprises a holdable support arm ( | 07-05-2012 |
| 20120174416 | ELECTRIC PRUNING DEVICE - A cutting tool for cutting vegetation including a rotary cutting bit adapted to be advanced through the vegetation in a direction perpendicular to the bit's axis of rotation. The tool can include a guard member at least partially surrounding the rotary cutting bit. The guard member can be biased towards a first portion and pivotable to a second position during a cutting operation. The rotary cutting bit can be supported by two bit supports spaced apart axially. A removable handle and shield member can also be provided. | 07-12-2012 |
| 20120180322 | FOUR-CYCLE ENGINE, BUSH CUTTER AND ENGINE-DRIVEN TOOL HAVING SAME - There is provided a four-cycle engine which can appropriately circulate oil in an engine regardless of a tilted condition with a simple structure. A crankcase ( | 07-19-2012 |
| 20120204427 | POSITIONING TUBE OF A VEGETATION CUTTER - A vegetation cutter includes a tubular casing and a power source is connected to a first end of the casing so as to drive a drive cable which extends through the casing. A cutting member is connected to the drive cable and located on a second end of the casing. A positioning tube is axially located in the casing and has an annular sleeve through which the drive cable extends. The sleeve has two ribs tangentially and diametrically connected thereto. The two ribs are parallel to each other and extend in opposite directions. The ribs contact an inner periphery of the casing. The ribs are flexible and position the positioning tube in the casing, and absorb vibration when in use. | 08-16-2012 |
| 20120204428 | POSITIONING TUBE OF A VEGETATION CUTTER - A vegetation cutter includes a tubular casing and a power source is connected to a first end of the casing so as to drive a drive cable which extends through the casing. A cutting member is connected to the drive cable and located on a second end of the casing. A positioning tube is axially located in the casing and has an annular sleeve through which the drive cable extends. The sleeve has two rib portions tangentially connected thereto and the two rib portions are parallel to each other. Each rib portion has two ribs on two ends thereof and the two ribs contact an inner periphery of the casing. The ribs are flexible and position the positioning tube in the casing, and absorb vibration when in use. | 08-16-2012 |
| 20120246943 | CLUTCH WITH BUILT-IN TORSIONAL VIBRATION DAMPER - A torsional vibration damper equipped clutch ( | 10-04-2012 |
| 20130014393 | Bush cutterAANM YAMASHITA; MasaoAACI Kurobe-shiAACO JPAAGP YAMASHITA; Masao Kurobe-shi JP - To prevent overload and operability reduction and make operator's fatigue low in a bush cutting operation with a cutter cord in a bush cutter having a standard output, a bush cutter includes a cutting blade device at a front end of an outer pipe, a motor at a rear end of the pipe, and a driving shaft enclosed in the pipe for transmitting rotation force of the motor to the cutting blade device, a frame is attached to the outer pipe and/or the cutting blade device, and the frame has a protrusion with a front end which protrudes near a front end of a rotating cutting blade or to the front side of the front end of the blade, and extends at an angle within a range from 0 degree in parallel to 45 degrees upward with respect to a rotation face of the blade in a side view. | 01-17-2013 |
| 20130014394 | CUTTER FOR WOVEN BELTSAANM YU CHEN; Hsiu-ManAACI Taichung CityAACO TWAAGP YU CHEN; Hsiu-Man Taichung City TW - A cutter for woven belts includes a handle having two ends respectively defined to be a first end and a second end. The handle has a circumferential side provided with a cutting opening located close to the first end, extended in a direction from the second end toward the first end and having an opposite sealed end connected with two guide grooves. A blade deposited in the handle is exposed in the cutting opening. Thus, when a woven belt is being cut by the cutter, the cut-off portion of the woven belt will be guided by the guide grooves to be separated from the original woven belt so that the woven belt cut apart can be prevented from being accumulated at the cutting opening or being hindered by a user's hand, enabling the cutter to effectively cut off woven belts for facilitating sequent work of removing the woven belts from goods. | 01-17-2013 |
| 20130025136 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 01-31-2013 |
| 20130025137 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 01-31-2013 |
| 20130025138 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 01-31-2013 |
| 20130025139 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 01-31-2013 |
| 20130031787 | BRUSH CUTTER - A brush cutter is provided with an operating rod, a cord holder configured to be rotatably driven at a front end of the operating rod, a cutting cord held by the cord holder and configured that a tip of the cutting cord is drawn out from the cord holder, and an under cover configured to cover from an under side a part of a region in which the cutting cord extending from the cord holder revolves. The cord holder is provided with a cord feeding button that projects downward and is configured to feed the cutting cord by being pressed. The under cover is provided with an opening that exposes the cord feeding button. | 02-07-2013 |
| 20130031788 | BRUSH CUTTER - a brush cutter comprises an operating rod and a cord holder configured to be rotatably driven at a front end of the operating rod. A cutting cord is held by the cord holder and configured that a tip of the cutting cord is drawn out from the cord holder. The brush cutter further comprises an upper cover, a trimming cutter and a bouncing wall. The upper cover is configured to cover from an upper side and lateral side a part of region in which the cutting cord extending from the cord holder revolves. The trimming cutter is configured to cut the tip of the cutting cord drawn out from the cord holder. The bouncing wall is located inside the upper cover and configured to bounce off a cut piece of the cutting cord cut by the trimming cutter toward an opposite side from a user. | 02-07-2013 |
| 20130031789 | BLADE BUSHING FOR ROTARY KNIFE - A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing and blade bushing are split in order to expand and receive the blade. The blade includes an outer groove that is also operable to receive the blade bushing. Thus, the blade bushing is spaced between the blade housing and blade and rotatably secures the blade within the blade housing. | 02-07-2013 |
| 20130104404 | ROTARY KNIFE WITH MECHANISM FOR CONTROLLING BLADE HOUSING | 05-02-2013 |
| 20130139391 | POLE PRUNER - A cutting tool for cutting vegetation including a rotary cutting bit adapted to be advanced through the vegetation in a direction perpendicular to a rotational axis of the bit. The rotary cutting bit can be supported by two bit supports spaced apart axially. The tool can include an extension pole which allows the rotary tool to be mounted adjacent a distal end of the pole. In this way high branches and the like can be cut. | 06-06-2013 |
| 20130174424 | FLEX SHAFT - TOOL CONNECTION FOR POWER OPERATED ROTARY KNIFE - A flexible shaft drive transmission coupled between a drive motor and a gear train of a power operated tool. The flexible shaft drive transmission includes: an outer casing having a bushing positioned at a tool end of the casing, the bushing defining a longitudinal central opening; lubricant disposed within the outer casing; and an elongated drive transmitting shaft assembly rotatable within the outer casing including a flexible drive transmitting and a coupler fitting affixed to the tool end of the drive transmitting shaft, the coupler fitting including a cylindrical body and an enlarged head extending distally from the cylindrical body, the cylindrical body fitting within the longitudinal central opening of the bushing and the enlarged head having a diameter greater than a diameter of the longitudinal central opening of the bushing. The enlarged head defining a square drive aligned with a central longitudinal axis of the drive transmitting shaft assembly. | 07-11-2013 |
| 20130185944 | POWER OPERATED ROTARY KNIFE - A two-part rotary knife blade ( | 07-25-2013 |
| 20130219726 | BLADE GUIDE ASSEMBLY FOR POWER OPERATED ROTARY KNIFE - A blade guide assembly for receiving the head assembly of a power operated rotary knife. The blade guide assembly includes: a blade guide and a cover secured to the blade guide to secure the head assembly within the blade guide. The blade guide includes a top wall, a bottom wall and an outer wall, an arcuate blade-receiving groove spaced radially inwardly from the outer wall, extending axially from the top wall and defining peripherally spaced apart ends, a head member-receiving channel extending radially inwardly from the outer wall and intersecting the arcuate groove, and a notched region intersecting the peripherally spaced apart ends of the arcuate blade-receiving groove. The cover includes a base secured to the top wall of the blade guide and overlying at least a portion of the arcuate blade-receiving groove and an outer extension defining an opening axially aligned with the notched region of the blade guide. | 08-29-2013 |
| 20130269192 | ROTARY CUTTING HEAD USING CUTTING BLADES, AND CUTTING DEVICES COMPRISING SUCH A CUTTING HEAD - A rotary cutting head is provided for portable cutting devices, such as lawn trimmers, edge trimmers, brush cutters, hedge trimmers, and the like which use cutting blades. The drive shaft, the blade supporting housing, and the blade of said cutting head have complementary means which, manually and without using tools, allow the blade to be placed, changed, centered, and axially positioned relative to the drive shaft and to be rotationally coupled to the blade supporting housing by performing an axial movement combined with an angular or linear movement of the blade relative to the drive shaft until the blade and the supporting housing start automatically interlocking. | 10-17-2013 |
| 20130276314 | WORK APPARATUS - A work apparatus includes a drive motor, a tool head including a tool frame, a bearing, a tool shaft and a rotary tool, a frame tube with the proximal end connected to the drive motor and the distal end connected to the tool head, and a drive shaft rotatably inserted through the frame tube for transmitting the rotation of the drive motor to the rotary tool. The rotary tool is accommodated within the tool frame and is rotatable on the tool shaft, when driven by the drive shaft. The tool shaft is journaled by the bearing which is elastically supported by a flexible elastic member disposed coaxially around the bearing and interposed between the bearing and the connection of the tool frame or the frame tube. Undesirable vibrations caused by the rotation of the rotary tool will be effectively hindered from being transmitted to the frame tube. | 10-24-2013 |
| 20130283623 | ROTARY CUTTING HEAD USING WIRE-SHAPED FLEXIBLE CUTTING ELEMENTS, AND CUTTING DEVICES COMPRISING SUCH A CUTTING HEAD - A rotary cutting head uses flexible strands of cutting wire that can be placed inside said cutting head. The clamping mechanism of the cutting head comprises pinching cams that are mounted in such a way as to be pivotable on planes that are parallel to one another and to the axis of rotation of the cutting head. The support for the clamping mechanism is mounted in such a way as to be axially movable in the outer housing of the cutting head. The outer housing and the support are complementary to each other such that simultaneously applying a relative axial movement to the outer housing and the support in opposite directions enables the pinching cams to be lifted, allowing the cutting strands to be placed, unwound, or retracted, or enables the cams to be lowered in order for the cutting strands to be blocked within the cutting head. | 10-31-2013 |
| 20130326886 | REPLACEABLE HIGH GRIP CONNECTION FOR BLADE HOUSING OF ROTARY KNIFE - A rotary knife includes a handle, a rotatable annular blade, an expandle blade housing, and a housing support. The blade housing is movable relative to the handle between a blade-securing condition, in which the blade housing securely supports the blade for rotational operation, and a relatively expanded blade-releasing condition, in which the blade housing permits removal and installation of the blade relative to the blade housing. The housing support is coupled to the handle and supports the housing in the blade-securing and blade-releasing conditions. The support and housing include interengaging surfaces that contact one another in the blade-securing condition, with at least one of the interengaging surfaces including an applied high-friction coating. | 12-12-2013 |
| 20140109415 | BREAKAWAY LUG DRIVE COUPLER OF ROTARY KNIFE - A rotary knife assembly includes a rotary knife with a spinning blade, a motor operable to power the rotary blade, and a flexible drive cable connected between the motor and knife to transmit rotational power to the blade. The assembly includes a safety release feature drivingly intercoupled between the motor and drive cable so as to drivingly disconnect the cable and knife from the motor when excess torque is experienced. The safety release feature is in the form of a breakaway drive lug operable to normally transmit rotational power from the motor to the knife. In the event of binding of the knife or kinking of the drive cable, excess torque serves to break the drive lug in order to disengage the motor from the knife. | 04-24-2014 |
| 20140115903 | VEGETATION CUTTING DEVICE - A vegetation cutting device comprising a housing rotatably coupled to a shaft; a cutting head comprising a rotary cutting means for cutting vegetation, the cutting head being coupled to the shaft and being arranged to move between an edging mode in which the rotary cutting means rotates in a substantially vertical plane and a trimming mode in which the rotary cutting means rotates in a substantially horizontal plane; a motor mounted in the housing, the motor being arranged to drive the rotary cutting means; and a switching means mechanically coupled between the housing and the shaft and arranged to be actuated when the shaft rotates relative to the housing thereby changing the speed of the rotary cutting means when the cutting head moves between the edging mode and trimming mode. | 05-01-2014 |
| 20140115904 | ROTARY CUTTING HEAD SYSTEM - A rotary cutting head system for a vegetation cutting device comprising; a cutting filament insert having a cutting filament and an anchor mounted thereto, the anchor having a protruding element; a cap comprising a base; a peripheral wall having at least one through hole for receiving the cutting filament; and a slot mounted on the cap for retaining the protruding element of the anchor wherein when the cutting filament insert is mounted in the cap, the protruding element of the anchor is configured to slide into the slot and to prevent lateral movement of the anchor towards the at least one through hole and to allow the anchor to slide along a path substantially parallel with the axis of rotation of the rotary cutting head. | 05-01-2014 |
| 20140182143 | VEGETATION CUTTER - A vegetation cutter includes a frame rod assuming a pole and having a front end and a rear end; a cutter head mounted on the front end of the frame rod and including a rotary cutter and a drive motor connected to the rotary cutter; controller head mounted on the rear end of the frame rod and including a control circuit for controlling the drive motor; and a handle fixed to the frame rod to be held by hands of a user. The cutter head includes a cutter frame for enclosing the drive motor therein, rotatably supports the rotary cutter below the cutter frame and is connected to the frame rod. The cutter frame is comprised of a wall member formed with a plurality of ridgelike ribs projecting inward from a platelike member, each rib having a height between 0.5 mm and 10 mm. | 07-03-2014 |
| 20140190017 | MOTOR SYSTEM FOR DUAL VOLTAGE DEVICES - A power tool includes a housing and an output shaft supported by the housing for rotation about an axis. The power tool further includes a first motor disposed in the housing and a second motor disposed in the housing and coupled to the first motor. The first motor drives the output shaft and does not drive the second motor when in a first power mode, and the second motor drives the first motor and the output shaft when in a second power mode. | 07-10-2014 |
| 20140208597 | VEGETATION TRIMMER - A hand-held vegetation trimmer includes a shaft, a cutting blade disposed at a first end portion of the shaft, a first handle disposed at a second end portion of the shaft, and a motor in communication with the cutting blade. The motor is disposed on the shaft. The motor is concentric with the shaft and is located between the cutting blade and the first handle. | 07-31-2014 |
| 20140208598 | VEGETATION CUTTER - A vegetation cutter comprises a frame rod having a front end portion and a rear end portion, and assuming a hollow tube having an open front end; a cutter head mounted on the front end portion of the frame rod and including a drive motor, a cooling fan to be rotated by the drive motor, and a rotary cutter to be rotated by the drive motor; and a power head mounted on the rear end portion of the frame rod and providing electric power for the drive motor. The frame rod is provided with an air intake aperture located at a position rearward than the cutter head and communicating through the hollow tube toward the cutter head. The frame rod is comprised of a front part rod and a rear part rod separably coupled together by means of a tubular joint. The air intake aperture is located on the front part rod. | 07-31-2014 |
| 20140215835 | BATTERY POWERED HAND HELD CUTTING TOOL - A hand held battery powered cutting tool is provided. The tool the ( | 08-07-2014 |
| 20140245617 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 09-04-2014 |
| 20140259690 | MOVEABLE LUBRICATION ASSEMBLY FOR POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 09-18-2014 |
| 20140290073 | GRASS CUTTER BLADE AND GRASS CUTTER - A grass cutter blade of the present invention inclines: a connection part for connection to a grass cutter; and a peripheral part extending from the connection part as a center and having an outer periphery that is inclined downwardly. The peripheral part is provided with a plurality of cutouts, each of which has an opening at the outer periphery. The peripheral part includes a region located further away from a rotation axis of the blade than an edge portion of each of the plurality of cutouts. There exist, in the edge portion, a first and a second end sections which extend to a deepest section, the first and second end sections pass through respective regions during rotation of the blade, and a distance exists between the respective regions in a direction orthogonal to the rotation axis with respect to a predetermined range in an up-and-down direction. | 10-02-2014 |
| 20140298662 | POWER OPERATED ROTARY KNIFE - A power operated rotary knife ( | 10-09-2014 |
| 20140325850 | VEGETATION CUTTING DEVICE - A spool accessory for a rotatable cutting head of a vegetation cutting device comprises: a spool configured to receive a cutting line wound thereon; and a spool sleeve mounted to the spool, the sleeve comprising a gripping arm moveable between a gripping position wherein the gripping arm grips the cutting line wound on the spool and a release position wherein the gripping arm does not engage the cutting line wound on the spool, wherein the gripping arm is configured to move from the gripping position to the release position when the cutting head rotates. | 11-06-2014 |
| 20140325851 | VEGETATION CUTTING DEVICE - A rotatable cutting head for a vegetation cutting device comprises: a rotatable spool having a cutting line wound thereon, a free end of the cutting line being arranged to exit the cutting head via an opening. A cap comprises a feeding mechanism, the feeding mechanism comprising a peg for engaging with the spool and configured to allow the spool to rotate relative to the cutting head and feed cutting line from the spool when the free end is short than a predetermined length. A moveable locking mechanism is configured to move between a locking position in which the locking mechanism engages the cutting line feeding mechanism and limits relative movement between the cutting head and the spool land a release position in which the locking mechanism does not engage the cutting line feeding mechanism; The cutting head comprises a spool comprising: a central portion for receiving the cutting line wound thereon; a flange connected at one end of the central portion. The flange comprises an internal track on a base of the flange configured to guide the peg of a feeding mechanism in the cap, the internal track comprising at least one notch for engaging the peg and preventing relative motion between the cutting head and the spool. At least one external camming surface is on a peripheral edge of the flange. The camming surface is configured to engage with the moveable locking mechanism as the spool rotates relative to the cutting head and cause the moveable locking mechanism to move between the release position and the locked position. | 11-06-2014 |
| 20140325852 | VEGETATION CUTTING DEVICE - A vegetation cutting device comprises: a rotating cutting head and having a cutting line, the cutting line arranged to define a swath for cutting vegetation. A cutting line feeding mechanism comprises a counterweight for balancing a free end of the cutting line protruding from the cutting head, the counterweight being configured to actuate the cutting line feeding mechanism and feed more cutting line when the length of free end the cutting line is shorter than or equal to a feed length. A guide wheel is mounted on the vegetation cutting device and has an outer surface for engaging the ground. The guide wheel is moveable between a retracted position and an extended position wherein when the guide wheel is in the retracted position, the feed length is substantially equal to a distance between the outer surface of the guide wheel engaging the ground and the cutting head. | 11-06-2014 |
| 20140352160 | VEGETATION CUTTER - A vegetation cutter comprises: a frame rod having a longitudinal axis and a front end; a rotary cutter mounted on the front end of the frame rod; a drive motor for driving the rotary cutter; a grip disposed around the frame rod and having an external surface to be held by a user; a power switch trigger arranged on the grip for energizing the drive motor; and a safety lock mechanism for rendering the power switch trigger inoperative when the safety lock mechanism is in a lock position and for rendering the power switch trigger operative when the safety lock mechanism is in a release position. The safety lock mechanism includes a manipulating knob for selectively setting the safety lock mechanism in the lock position and in the release position. The manipulating knob is disposed on the grip at a position circumferentially opposite to the power switch trigger and is turnable around an axis which is parallel to the longitudinal axis of the frame rod to selectively bring the safety lock mechanism to the lock position and the release position. | 12-04-2014 |
| 20140360026 | CUTTING HEAD OF A GRASS TRIMMER - A cutting head for use with a cutting tool, such as a grass trimmer. The cutting head has a housing, a line spool and a supporting cap. One end of the housing is coupled to an end of a motor output shaft and another end has an opening. A line spool is disposed in the housing and rotates along with the housing. At least one end of a line wound around the line spool extends out of the housing. The supporting cap is rotatably disposed at the end of the line spool adjacent to the opening and is exposed to an exterior of the housing through the opening. | 12-11-2014 |
| 20150013172 | ELECTRIC MOTOR SUPPORT STRUCTURE AND POWER EQUIPMENT UNIT INCORPORATING SAME - An outdoor power equipment unit such as a string trimmer, and an electric motor support structure for use with the same. The structure may form a cage that surrounds the motor and secures the motor in place relative to an outermost shell of a motor housing of the string trimmer. The cage may electrically and/or thermally insulate the outermost shell from the motor. | 01-15-2015 |
| 20150075009 | String Trimmer Head Configuration and Method - A trimmer head assembly and the method of configuring the trimmer head assembly. The trimmer head assembly has a housing that attaches to a string trimmer machine. A spool is provided inside the housing. The spool rotates about an axis of rotation. The spool can move longitudinally along the axis of rotation between a first position and a second position. A ratcheting mechanism is provided between the trimmer head housing and the spool. When the spool is in its first position, the ratcheting mechanism enables the spool to continuously rotate about the axis of rotation in the direction opposite that in which the trimmer head assembly spins. The ratchet mechanism also prevents the spool from rotating within the housing in the same direction in which the trimmer head is spinning. | 03-19-2015 |
| 20150075010 | Aerodynamic Trimmer Head For Use In Flexible Line Rotary Trimmers - An aerodynamic trimmer head for use in flexible line rotary trimmers having a plurality of aerodynamic elements defined by the upper and lower head surfaces that during rotation of the head, draw air downwardly about the trimmer drive mechanism onto the upper head surface and move the air outwardly from the head into the plane of the extended cutting line and at forward inclination in the direction of rotation. The downwardly moving air cools the trimmer drive mechanism and the outwardly and forwardly moving air reduces the drag on the head and the extended cutting line. The aerodynamic elements preferably include a plurality of troughs extending downwardly and forwardly along the upper head surface, a perimeter surface for deflecting air moved by the troughs into a generally horizontally extended zone of moving air about the extended cutting line and a plurality of dimples formed in a lower surface of the head. | 03-19-2015 |
| 20150101199 | HEAD FOR A LINE HEDGE TRIMMER - Head for hedge trimmer comprising an external casing ( | 04-16-2015 |
| 20150107118 | INTEGRATED STRING AND BLADE TRIMMER SYSTEM - An integrated string and trimmer blade system that allows a user to simultaneously employ one or more flexible lines and one or more blades during various types of cutting operations (e.g., grass, weeds, branches, etc.). The system may be implemented on any appropriate cutting apparatus such as walk-behind trimmers and/or mowers, hand-held trimmers, and the like. Broadly, the system includes a cutting member having a body that is rotatable about a pivot axis of the cutting apparatus. One or more cutting blades are pivotally attached to the body such that the blades can oscillate or otherwise pivot relative to the body as the body rotates about the central axis. At least one of the blades includes one or more line holders thereon for receipt and attachment of one or more flexible cutting lines or strings. | 04-23-2015 |
| 20150121707 | TRIMMER HEAD - A trimmer head in which a cutting line can be loaded to a spool includes a housing connectable to a driving shaft. A line outlet is disposed in the housing and the spool is connected to the housing. In a line winding mode, the spool includes a position where an end of a line leading channel is aligned with the line outlet and a cutting line may enter the line leading channel and will be in clearance fit with the line leading channel. When the spool is rotated with respect to the housing, a portion of the cutting line in the line leading channel is pressed tightly therein, and the portion of the cutting line extending from the line leading channel can be pulled toward the spool. | 05-07-2015 |
| 20150135541 | Articulating Oscillating Power Tool - An oscillating power tool includes a drive motor producing rotary motion and an actuator for converting the motor rotary motion to an oscillatory side-to-side movement. The power tool includes a tool mount operably driven by the actuator and configured to support the tool so that the working end is substantially collinear and/or coplanar with the axis of the motor drive shaft. | 05-21-2015 |
| 20150289445 | Trimmer Head - A trimmer head that can be attached to trimmer stems of varied length includes a stem attachment point, a lift, a base, a pull and twist mechanism, a plurality of blade posts, and a plurality of resting cavities. The trimmer stem is attached to the stem attachment point. The stem attachment point is positioned in between the lift and the base allowing the trimmer head to receive longer trimmer stems. Trimmer blades or trimmer lines are attached to the plurality of blade posts. The lift and the base are positioned adjacent to each other. Moreover, the plurality of blade posts are oriented towards the base. By using the pull and twist mechanism, the trimmer blades or the trimmer lines are positioned in between the lift and the base. The lift is offset from the base providing a maximum range of motion for the attached trimmer blades or trimmer lines. | 10-15-2015 |
| 20150289446 | Pivotal Line Holder - A trimmer line holder for a trimmer head contains a structural body, a circular hole, a first trimmer line receiving hole, a second trimmer line receiving hole, and a hollow space. The circular hole traverses through the structural body from a top surface to a bottom surface. A trimmer blade attachment member of a trimmer head is positioned in the circular hole. The first trimmer line receiving hole and the second trimmer line receiving hole traverse into the hollow space through the structural body. A first end of a trimmer line traverses into the first trimmer line receiving hole Likewise, a second end of the trimmer line traverses into the second trimmer line receiving hole. When the trimmer line is inserted, the trimmer line lies perpendicular to the trimmer blade attachment member. | 10-15-2015 |
| 20150298328 | ROTARY KNIFE BLADE WITH DOUBLE BEVELED INSIDE SURFACE - A rotary knife includes a rotatable annular blade. The blade includes a blade wall presenting an annular inner surface terminating at a cutting edge. The annular inner surface includes a first section and a second section, with the first section extending from the cutting edge and the second section being located further from the cutting edge than the first section. The first and second sections define first and second angles, respectively, relative to an imaginary plane transverse to the axis about which blade rotates. The second angle is greater than the first angle. | 10-22-2015 |
| 20150298329 | BLADE BUSHING FOR ROTARY KNIFE - A powered rotary knife includes a handle, a blade housing, an annular blade, and a blade bushing for rotatably mounting the blade within the housing. The blade housing includes an inner groove that is operable to receive the blade bushing therein. The blade housing and blade bushing are split in order to expand and receive the blade. The blade includes an outer groove that is also operable to receive the blade bushing. Thus, the blade bushing is spaced between the blade housing and blade and rotatably secures the blade within the blade housing. | 10-22-2015 |
| 20150305234 | FILAMENT CUTTERHEAD FOR A BRUSHCUTTER - A filament cutterhead for a brushcutter is able to be driven in a rotatable manner during operation in a rotational direction about a rotational axis. The filament cutterhead has a base body on which at least one cutting filament is retained and which has a lower face facing the ground during operation. The cutting filament extends from an outer face of the base body through an opening as far as an inner region of the base body which is open toward the lower face of the base body. In order to achieve a low degree of soiling of the filament cutterhead during operation, a shield element is provided in the inner region and the leading portion of the cutting filament in the inner region is arranged in the slipstream of the shield element relative to the rotational direction. | 10-29-2015 |
| 20150327435 | STRING TRIMMER LINE HOLDER DEVICE AND SYSTEM - Disclosed herein is a string trimmer line holder device that includes a main body extending between a first end and a second end, the main body including a first opening proximate the first end and a second opening proximate the second end. A length of pre-cut string trimmer line is configured to be inserted into each of the first and second openings such that a first end of the pre-cut string trimmer line is inserted into the first opening and a second end of the pre-cut string trimmer line is inserted into the second opening. | 11-19-2015 |
| 20150327436 | UNIVERSALLY ADAPTABLE, EASY TO LOAD TRIMMER HEAD WITH FREE ROTATING BUMP KNOB - A bump-activated trimmer head for a rotary trimmer of the type that utilizes wound trimmer line to cut vegetation is provided. The rotary trimmer has a shaft defining a rotation axis. The trimmer head includes a housing attached to the rotary shaft of the rotary trimmer and has at least a pair of opposed eyelets through which the trimmer line is discharged for cutting the vegetation. The trimmer head also includes a spool encased within the housing and having a passageway for the trimmer line, the passageway having opposed ends and extending from one side of the spool to an opposite side. The opposed ends of the passageway are alignable with the opposed eyelets of the housing. The trimmer head further includes an indexing knob external to the housing and operatively connected to the spool for turning the spool for the purpose of winding the trimmer line onto the spool. Finally, the trimmer head includes a bump knob rotating about the same rotation axis as the shaft, wherein the bump knob is operationally connected to the spool, but is rotationally independent of the shaft, the housing and the spool. | 11-19-2015 |
| 20150342116 | TRIMMER HEAD - A spool for a trimmer head has a structure for guiding a pair of separate trimmer line pieces through a core of the spool. The spool includes separate trimmer line channels formed through the core, each channel receiving one of the trimmer line pieces. A spool cover is positionable adjacent to the spool to enclose the channels. The spool cover includes a pair of cantilever springs extending therefrom for releasably securing the trimmer line pieces within the channels. | 12-03-2015 |
| 20150342117 | STRING TRIMMER HEAD ASSEMBLY WITH PIVOTING LINE MOUNTS - A trimmer head assembly for use on a vegetation cutting machine. The trimmer head assembly has a housing. The housing has a top surface, bottom surface, and may have at least two recessed areas there between. Pivot posts are disposed about the trimmer head. An anchor disc is disposed around each pivot post. The anchor disc is free to rotate around the pivot post within a range. Each anchor disc may have two trimmer line channels extending through it. The two trimmer line channels are joined by an open edge groove that runs along one edge. A length of trimmer line is provided for each anchor disc. Each length of trimmer line has a first end that extends through the first of the trimmer line channels, a second end that extends through the second of the trimmer line channels and a bend that seats in the open edge groove. | 12-03-2015 |
| 20150351319 | TRIMMER HEAD WITH PIVOT POSTS HOLDING A SINGLE STRIP OF LINE - A fixed-line trimmer head for a rotary trimmer device includes the upper portion having a periphery, wherein the upper portion has a plurality of openings spaced from the periphery; and a plurality of mechanisms. Each mechanism can hold a strip of line and includes a post portion disposed through one of the openings in the upper portion, and a flange disposed at one end of the post portion and sandwiched between the upper portion and lower portion of the trimmer head to prevent vertical movement of the mechanism. The post portion includes two line channels, each line channel defining a passageway to receive the same strip of line, wherein at least one of the line channels is curved such that any portion of the strip of line being received through the passageway of that line channel is bent at that portion of the strip of line away from the second line channel while passing through that at least one line channel that is curved. | 12-10-2015 |
| 20150359172 | Rotary Trimmer with Cutting Blade and Line and Blades for Use with Same - A rotary tool for cutting woody brush, that includes an engine, a transmission for transferring rotational movement to a head, an elongate pole, and the head is positioned at the end of the pole, and connected to the head is a cutting blade that has a flat middle section that is adapted to engage and opposite cutting sections that extend downwardly from the middle section, and the cutting sections have cutting surfaces and, in embodiments, the tool includes cutting line. | 12-17-2015 |
| 20150366131 | TRIMMER HEAD WITH PIVOTING POSTS - A fixed-line rotary trimmer head is provided having pivoting posts (line holding mechanisms) which allow folded strips of trimmer line to pivot out of the way when impacting stones, metal posts and the like to reduce wear and tear on the line and reduce line breakage, the trimmer line is loaded from the underside of the trimmer head and follows an approximate 90 degree curvilinear channel so that the distal ends of the line extend out the side of the trimmer head for use, the trimmer head also comprises means for pushing the trimmer line partially out of the channel for ease of use and for removal of unused trimmer line. | 12-24-2015 |
| 20150366133 | BRUSH CUTTER - A brush cutter includes a frame rod, a front end housing fixedly mounted to a front end of the frame rod, a cutting blade mounted on a support shaft within the front end housing, a rear end housing fixedly mounted to a rear end of the frame rod, an electric motor mounted within the rear end housing for rotation of the cutting blade, and a source of power supply for supplying electric power to the motor. In the brush cutter, a plurality of rechargeable battery packs adapted to use in electric power tools are used as the source of power supply for the motor. | 12-24-2015 |
| 20160007528 | Novel Trimmer Line for String Trimmers | 01-14-2016 |
| 20160021819 | ELECTRIC WORKING MACHINE - An electric working machine including: a motor; a control unit configured to control rotation of the motor; a fixed part provided with a handle having a grip portion; a movable part held by the fixed part and is configured to be extendible by sliding relative to the fixed part; and a cutting blade provided to a end portion of the movable pipe and is configured to be driven by the motor; characterized in that the electric working machine further includes a detection unit which is connected to the control unit and is configured to detect whether or not the movable part is positioned at a predetermined extended position relative to the fixed part. | 01-28-2016 |
| 20160029556 | TRIMMER HEAD FOR A VEGETATION CUTTING MACHINE - The invention relates to a trimmer head for a vegetation cutting machine, comprising:
| 02-04-2016 |
| 20160044864 | REPLACEABLE TRIMMER LINE DEVICE - A replaceable trimmer line device facilitates changing of trimmer line extending from a trimmer head. The device includes a line connector having opposite ends coupled to a trimmer head. A line socket extends through the line connector. A trimmer line has a head section and a cutting section. The cutting section extends from the head section. The head section is positionable in the socket such that the cutting section extends laterally from the line connector and outwardly from the trimmer head. | 02-18-2016 |
| 20160044865 | Rotating Trimmer Head Device - A rotating trimmer head device provides durable non-wound trimmer line extending from swiveling connectors coupled to a trimmer head. The device includes a trimmer head having a top section and a bottom section. A top surface of the bottom section is structured to have a plurality of bottom sockets and a bottom surface of the top section is structured to have a plurality of top sockets. Each of the bottom sockets is linearly aligned with an associated one of the top sockets to define a respective line receiver in the trimmer head. Each of a plurality of line connectors is positioned in an associated one of the line receivers. Each of a plurality of trimmer lines is coupled to and extends from an associated one of the line connectors such that the trimmer line extends from the trimmer head. | 02-18-2016 |
| 20160081268 | FILAMENT CUTTERHEAD FOR A BRUSHCUTTER - A filament cutterhead is provided for mounting on the drive shaft of a brushcutter. The filament cutterhead includes a housing with a circumferential wall wherein a first wall opening for a cutting filament is formed. A filament spool arranged in the housing is rotatable relative to the housing. A filament channel with a filament inlet segment is provided in a partition wall of the filament spool. The filament channel extends from the filament inlet segment past the hub to a filament outlet segment which is assigned a second wall opening in the circumferential wall. The filament outlet segment is at an offset (v) with respect to the filament inlet segment in the circumferential direction of the hub. The mouth of the filament inlet segment and the mouth of the filament outlet segment lie within an outside diameter (A) of the partition wall and open into a pass-through space. | 03-24-2016 |
| 20160082612 | POWER OPERATED ROTARY KNIFE - A rolling bearing strip for a power operated rotary knife providing bearing support for rotation of a rotary knife blade with respect to a blade housing. The rolling bearing strip includes: a plurality of rolling bearings disposed in spaced apart relation; and a flexible separator cage for positioning the plurality of spaced apart rolling bearings, the flexible separator cage including interlocking first and second ends, the first end of the separator cage including a wall defining a projecting member and the second end of the separator cage including a wall defining a receiving member, the first end projecting member and the second end receiving member being in opposed facing relationship and the first end projecting member extending into the second end receiving member to secure the first end to the second end and form an annular, continuous rolling bearing ring. | 03-24-2016 |
| 20160088792 | GRASS TRIMMER - A grass trimmer has a main body and a trimming device. The main body has an operating device and a power source. The trimming device has a grass cutting assembly having a cutting member and a power head for rotating the cutting member. The power head has a housing, a rotor assembly and a stator assembly. The housing is formed integrally and defines an accommodation chamber. The rotor assembly is received in the accommodation chamber of the housing and has a rotor sleeve which rotates around an axis. The stator assembly is at least partly received in the rotor sleeve. The rotor assembly further has two or more magnetic pieces disposed at an inner wall of the rotor sleeve. The stator assembly has a stator support and a coil assembly. The stator support includes a mounting portion and a supporting portion. The coil assembly is disposed in the rotor sleeve by the supporting portion. | 03-31-2016 |
| 20160106032 | TAPPING BODY FOR A HEAD FOR AN HEDGE TRIMMER AND A HEAD FOR AN HEDGE TRIMMER - A tapping body for a head for hedge trimmer comprising a lower portion ( | 04-21-2016 |
| 20160106033 | HEAD FOR HEDGE TRIMMER WITH AERODYNAMIC SURFACE - A head for edge trimmer comprising a casing ( | 04-21-2016 |
| 20160106034 | GRASS-CUTTING HEAD WITH CUTTING LINE WITH CUTTING LINE REFILLING WITHOUT OPENING - The grass-cutting head ( | 04-21-2016 |
| 20160106035 | HEAD FOR AN HEDGE TRIMMER - A head for an edge trimmer, comprising a casing ( | 04-21-2016 |
| 20160121500 | Power operated rotary knife - A power operated rotary knife ( | 05-05-2016 |
| 20160123375 | Drive-Cable Liner - A drive-cable liner is provided for centering a drive cable of a motorized tool, such as a weed trimmer. The liner comprises a hollow tube capable of circumferentially securing the drive cable. Annular elements are integrally formed along the exterior surface of the hollow tube, preferably using a corrugation process. Annular elements are longitudinally spaced along the hollow tube and have an exterior surface that urges against the interior of a shaft of the tool. The drive cable is thereby centered within the shaft. | 05-05-2016 |
| 20160128276 | LINE-WINDING SPOOL FOR GRASS-CUTTING HEADS - Line-winding spool for grass-cutting heads, comprising a central body provided with a central axis of rotation coinciding with the axis of rotation of the grass-cutting head when inserted into it, said central body having a circumferential side area on which there is defined the annular area where the cutting line is wound, said spool having at least one channel crossing said central body transversally, provided with two openings on opposite portions of said side area for the insertion of the cutting line, said at least one channel having two opposite first segments starting from said openings towards the inside of the central body, and a curved connection segment between said first segments having a concave shape with the concavity upwards, said central body defining, in said concavity, a cavity, whose bottom is at a lower axial height than the axial height of said openings, characterized in that said curved connection segment has a lower surface that is substantially continuous along all its extension so as to be substantially closed downwards, with respect to the outer environment, to allow a single passage of the line from a said opening towards the opposite opening without the line exiting from said central body. | 05-12-2016 |
| 20160135367 | System for Cooling the Inside of the Filament Enclosure on a Vegetation Trimmer - A vegetation trimmer with a filament enclosure has cutting filament stored inside the filament enclosure. The free end of the cutting filament extends through a portal in the filament enclosure into the cutting plane. The filament enclosure is rotated at a high rate to allow the cutting filament to cut vegetation. Additional portals in the filament enclosure provide air circulation to the cutting filament stored inside the filament enclosure to prevent heating of the cutting filament during use. | 05-19-2016 |
| 20160143218 | LINE FEED MECHANISM FOR STRING TRIMMER - A string trimmer with a controller that brakes an electric motor so that the electric motor can selectively generate a moment that is used as a control signal for a line pay-out mechanism. | 05-26-2016 |
| 20160143219 | GRASS TRIMMER - A grass trimmer includes a cutting head for mounting a cutting member, a drive head having a output shaft for driving the cutting head to rotate, and an anti-winding member for preventing the output shaft from being wound to by grass. The drive head includes a drive device to drive the output shaft and a head housing for accommodating the drive device. The output shaft connects to the cutting head and passes through the anti-winding member and the anti-winding member is mounted to the cutting head so as to rotate with the cutting head and is disposed between the cutting head and the head housing so as to fill the space between the cutting head and the head housing. | 05-26-2016 |
| 20160143220 | CUTTER HEAD ASSEMBLY, A CUTTER OF THE SAME AND A ROTARY CUTTING MACHINE COMPRISING THE SAME - A cutter head assembly ( | 05-26-2016 |
| 20160150725 | ANTI-WIND/ANTI-WRAPPING ASSEMBLY FOR TRIMMERS | 06-02-2016 |
| 20160183452 | QUICK LOADING TRIMMER HEAD - A hand-held cutting device including an elongated member graspable along a portion thereof by an operator, a trimmer head disposed at one end of the elongated member, and a power unit operably coupled to the trimmer head to selectively cause rotation of the trimmer head, wherein the trimmer head comprises a line holding assembly to hold and selectively release the trimmer line and a housing to house the line holding assembly, wherein the line holding assembly includes a core having a first portion and a second portion, and a spool configured to hold trimmer line that is operably coupled to the core, and wherein the second portion of the core is non-rotatably fixed to the first portion of the core when the trimmer head is in an at-rest state, and is rotatable with respect to the first position of the core when the trimmer head is in an in-use state and rotating. | 06-30-2016 |
| 20160183453 | Easy to Disassemble Hub and Spool Assembly of a Vegetation Trimmer - A vegetation trimmer with a hub and spool assembly has a cutting filament wound around the spool. The free end of the filament extends through an aperture in the hub into the cutting plane. The hub and spool are rotated at a high rate to allow the filament to cut vegetation. The spool includes a plurality of arms which engage with arms on the hub. When the spool is acted upon, the arms on the spool disengage with the arms on the hub to permit relative rotation of the spool to the hub to feed additional filament into the cutting plane. An indexing feature is used to regulate the amount of additional cutting filament that is allowed to be fed into the cutting plane. The arms on the hub selectively engage with the arms on the spool to limit the axial movement between the spool and the hub. Quick removal is permitted when the spool is rotated relative to the hub and spool assembly, and the arms on the hub no longer limit the axial movement of the spool, and the spool is removed from the hub and spool assembly. | 06-30-2016 |
| 20160249529 | GRASS TRIMMER AND CORD DELIVERING METHOD OF GRASS TRIMMER | 09-01-2016 |
| 20170231153 | TRIMMER HEAD HAVING LINE CARTRIDGE | 08-17-2017 |
| 20180020614 | EASY LOAD TRIMMER HEAD SPOOL WITH NON-RADIAL GUIDE CHANNEL | 01-25-2018 |
| 20180020615 | EASY LOAD TRIMMER HEAD SPOOL WITH NON-RADIAL GUIDE CHANNEL | 01-25-2018 |
