| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 081580200 | Radially slotted or open end head | 27 |
| 20080245193 | Wrench Device - A wrench device includes an input gear configured to receive an input member such as a ratchet handle. The wrench device includes a socket housing defining a receiving area and an open side. A plurality of intermediary gears operatively couple the input gear to the socket housing. The wrench device may include a set of inserts, each being respectively receivable in the socket housing receiving area, defining a receiving area, and having an open side adjacent the socket housing open side when received in the socket housing receiving area. Each insert includes a cavity complementary to a spring biased lock coupled to an interior wall of the socket housing such that the insert is held in the socket housing receiving area but may be removed therefrom when sufficient is applied to the insert. | 10-09-2008 |
| 20090151518 | Open end ratchet wrench - A ratchet wrench devised for torquing axially placed hexagonal nut fasteners on hydraulic or similar lines. The wrench is formed of two main components: The first component consists mainly of a straight elongated handle with a semi-circular collar head attached thereto opening to one side. The collar houses three identical metal inserts which when assembled therein form half a peripherally ratcheting wheel with half an axial inner hexagonally shaped socket of predetermined dimensions. The second main component comprises a second mirror-image semi-circular collar housing identical metal inserts, with a tangentially protruding pin member which slides into a slot disposed in the first component. The two components assembled together form a ratcheting wrench with a wheel having an axial hexagonal slot which circumscribes the fastener to be torqued. A spring-biased pawl disposed in the main component engages the ratchet wheel. Spring-biased latches and other mechanisms disposed within the wrench head provide smooth and fast engagement and disengagement of the two head components. | 06-18-2009 |
| 20090260488 | TIE ROD ADJUSTMENT OPEN-END WRENCH - A clamping mechanism includes a pair of contact portions facing each other which is capable of directly contacting a tie rod hexagonal portion, and an open-close drive mechanism that causes the both contact portions to move away from and approach the tie rod hexagonal portion. By appropriately changing the distance between surfaces of the mutually facing pair of contact portions, the tie rod hexagonal portion will be securely clamped by the pair of contact portions, regardless of the size of the diameter of the tie rod. Then, the tie rod hexagonal portion is rotated to adjust the toe angle, by rotating the clamping mechanism via the rotation drive mechanism. | 10-22-2009 |
| 20090301263 | Self-adjustable universal ratchet spanner - Provided is a self-adjustable universal ratchet spanner enabling simple and continuous tightening or releasing of various sizes of hex head bolts or nuts by repeatedly pivoting the ratchet spanner in a state in which a spanner head is engaged with hex heads of the bolts or nuts, without separation of the spanner head from the heads of the bolts or nuts. The self-adjustable universal ratchet spanner includes a spanner head having a lower jaw integrally formed with the spanner head, and an upper jaw disposed at a rear part of the spanner head and resiliently supported by a spring, wherein the upper and lower jaws are engaged with hex head bolts or nuts so that the upper jaw resiliently supported by the spring moves forward and backward depending on variable diameter between flat surfaces of the hex head bolts and vertexes upon rotation thereof to tighten or release the hex head bolts or nuts, thereby performing a ratchet function of the spanner. | 12-10-2009 |
| 20100212461 | OPEN END RATCHET WRENCH - An open ended ratchet wrench includes an elongated handle and generally C-shaped head that is pivotally connected to the elongated handle. A cavity is formed within the C-shaped head. A pair of dogs pivotally mounted within the cavity, each having ratchet teeth. An elongated spring is positioned within the cavity and heaving each of a first end thereof abuttingly engaging a predetermined portion of one of the pair of dogs and having an opposed second end thereof abuttingly engaging a predetermined portion of an opposed one of the pair of dogs. A generally C-shaped insert is centrally disposed within the head and having ratchet teeth on each dog. An actuating member is secured to the spring and is manually operable to selectively rotate the head with the insert or ratchet the head about the insert. | 08-26-2010 |
| 20100229692 | Multi-Engageable Tubing Wrench - A tubing connector wrench having a rotating hub held by two independent pawls. An open end of the hub and casing of the wrench allows it to engage over a piece of tubing and thereafter be engaged on a tubing connector. The wrench may be employed to turn tubing connectors without removing it for repositioning. The two pawls insure that the hub remains engaged for one way turning of the connector. | 09-16-2010 |
| 20100257979 | Open End Ratchet Wrench - An open end ratchet wrench is defined with a gap which allows the ratchet wrench to pass through a pipe or obstacle to carry out rotation, thus improving the operability and convenience of the wrench. Both ends of the open end ratchet wrench extend outward to form a stopping piece, respectively. The stopping pieces allow the toothed pawl to be well positioned and prevent it from disengaging, thus maintaining a stable torque and making the ratchet wrench easy to use. | 10-14-2010 |
| 20100269639 | RATCHET WRENCH - A ratchet wrench is provided comprising a wrench handle with a head. A ratchet member has a plurality of ratchet teeth and is seated in the head for rotation about an axis. A pawl disposed within the head is adapted to pivot relative to the ratchet member. The pawl is provided with first and second pluralities of pawl teeth disposed for movement into and out of engagement with the ratchet teeth. A selector mechanism selectively pivots the pawl to move a selected one of the first and second pluralities of pawl teeth into engagement with the ratchet teeth. In one example, the selector mechanism can selectively permit the ratchet member to perform at least three functions. | 10-28-2010 |
| 20100326245 | UNIDIRECTIONAL RATCHET WRENCH - A unidirectional ratchet wrench has a head and a ratcheting assembly. The head has a stationary jaw and a ratchet jaw. The stationary jaw is formed on and protrudes from the head and has an undulating surface. The ratchet jaw is formed on and protrudes from the head and has an arced slot formed in an inner surface of the ratchet jaw. The ratcheting assembly has an engaging tab being movably mounted in the arced slot and selectively engaging and disengaging a tool head with the inner surface of the stationary jaw when the wrench is respectively rotated in drive and non-drive directions. | 12-30-2010 |
| 20110094348 | Open end ratchet wrench - An open end ratchet wrench includes a socket member rotatably received in an opened head member and having a number of teeth and having an open notch for selectively aligning with an open slot of the head member, a pawl engaged in the head member and having a toothed end for selectively engaging with the teeth of the socket member and for allowing the socket member to be rotated in one direction by the head member, and a spring biasing member engaged with the pawl and having two end portions extended out of the pawl and engaged with the head member for anchoring the spring biasing member to the head member and for evenly biasing the pawl to engage with the teeth of the socket member. | 04-28-2011 |
| 20110113930 | Open end ratchet wrench - An open end ratchet wrench includes a socket member rotatably received in an opened head member and having a number of teeth and having an open notch for selectively aligning with an open slot of the head member, a pawl engaged in the head member and having a toothed end for selectively engaging with the teeth of the socket member and for allowing the socket member to be rotated in one direction by the head member, and a retaining ring engaged with the pawl and engaged with the inner peripheral recess of the wrench head member for retaining the pawl to the wrench head member and for allowing the pawl to be engaged with the teeth of the socket member, and a spring biasing member biases the pawl to engage with the teeth of the socket member. | 05-19-2011 |
| 20110162486 | Open end ratchet wrench - An open end ratchet wrench includes a socket member received in an opened head member and having an open notch for selectively aligning with an open slot of the head member, a pawl engaged in the head member for determining the rotating direction of the socket member by the head member, and a spring biasing member engaged with the pawl and having two end portions extended out of the pawl and engaged with the head member for anchoring the spring biasing member to the head member and for evenly biasing the pawl to engage with the teeth of the socket member, the wrench head member includes rounded upper and lower peripheral portions for allowing the socket member and the ring member to be reached and to be easily operated by the user. | 07-07-2011 |
| 20110197717 | RATCHET WRENCH - A ratchet wrench includes a handle and a moving jaw. The handle has a pivot portion disposed at a working end of the handle and a fixed jaw integrally extended from the handle. The moving jaw has a pivoting base pivotally coupled to the pivot portion, and a ratchet is installed between the two jaws, and the moving jaw further has a clamp, and the clamp has a plurality of continuously arranged teeth, and the handle has an elastic element for propping the moving jaw, such that the moving jaw can be abutted against the ratchet, and the teeth of the moving jaw are engaged with the teeth of the ratchet. | 08-18-2011 |
| 20110209583 | RATCHET FLARE NUT WRENCH - A ratchet flare nut wrench is disclosed. The ratchet flare nut wrench includes a handle, a socket, and a ratchet. The handle includes at least one open end. The socket includes a through hole therein, wherein the through hole has different sizes on opposite sides of the socket. The ratchet connects the socket to the open end of the handle. | 09-01-2011 |
| 20120060652 | Reversible Open-Ended Ratchet Wrench - The present invention relates to the field of open-ended wrenches, and more specifically to a dual pawl assembly which can be used within an open-ended ratchet wrench to facilitate a bi-directional ratcheting motion. | 03-15-2012 |
| 20130036874 | Open-End Ratchet Wrench - An open-end ratchet wrench includes a gripping handle, an actuating arm, a head base, a ratchet wheel, two ratchet pawls, and a damping member. The head base has an actuating hole, the actuating arm has an offset latch, and the actuating hole has an enough margin. The ratchet wheel includes an outer tooth portion, a holding hole, and an opening shaped and sized to match with the gap. Each of the two ratchet pawls comprises a coupling tooth portion for coupling with the outer tooth portion of the ratchet wheel, an escaping area for escaping from the outer tooth portion of the ratchet wheel, and a resilient member to retain a firmly engagement between the coupling tooth portion and the outer tooth portion, so that the actuating arm drives the ratchet wheel to apply a single direction rotating force. | 02-14-2013 |
| 20130081518 | EXTRACTION DEVICE AND METHOD - A stuck drill bit having a KCS shank can be removed using an article with a body structure. The body structure has an opening that fits onto the shank, and an inward-facing surface around the opening is at least partially complementary to the surface of the shank. The surfaces engage sufficiently that rotary manual force is transferred from the inward-facing surface to the surface of the shank. | 04-04-2013 |
| 20130276592 | RATCHET WRENCH - A ratchet wrench is provided comprising a wrench handle with a head. A ratchet member has a plurality of ratchet teeth and is seated in the head for rotation about an axis. A pawl disposed within the head is adapted to pivot relative to the ratchet member. The pawl is provided with first and second pluralities of pawl teeth disposed for movement into and out of engagement with the ratchet teeth. A selector mechanism selectively pivots the pawl to move a selected one of the first and second pluralities of pawl teeth into engagement with the ratchet teeth. In one example, the selector mechanism can selectively permit the ratchet member to perform at least three functions. | 10-24-2013 |
| 20140041487 | RATCHET WRENCH - A ratchet wrench includes a driving head, two retaining rings engaged in the driving head, a driving member rotatably engaged in the driving head and having a gear, and a pawl engaged in the driving head and having a lever arm extended from a shaft, and one or more teeth formed on the lever arm for engaging with the gear and for determining the driving direction of the driving member by the driving head and the handle, the shaft includes two end segments extended beyond the lever arm for forming two engaging surfaces and for engaging with the retaining rings and for allowing the retaining rings to apply a spring biasing force onto the end segments of the shaft and to force the teeth of the lever arm to engage with the gear. | 02-13-2014 |
| 20140076110 | RING RATCHET SPANNER - The invention relates to a ring ratchet spanner comprising a ratchet head ( | 03-20-2014 |
| 20140096652 | Ratchet Wrench - An open-ended ratchet wrench includes a body having a fixed jaw, a first pivotal portion, and a second pivotal portion. A driving member is rotatably mounted to the fixed jaw. The driving member includes an inner periphery for holding an object to be driven. A first movable jaw includes a first pivotal end pivotably connected to the first pivotal portion and a first movable end having a first toothed portion meshed with a toothed portion on an outer periphery of the driving member. A second movable jaw includes a second pivotal end pivotably connected to the second pivotal portion and a second movable end having a second toothed portion meshed with the toothed portion of the driving member. | 04-10-2014 |
| 20140373685 | Open Ended Socket Wrench - A head of an open ended ratchet features outer face plates with voids that delimit a jaw space that is open at one end. Two gripping pieces face toward one another from opposing sides of the jaw space. A working side of each gripping piece features two working faces that lie at an oblique angle to one another to define an inner corner that fits over a respective outer corner of a fastener. The gripping pieces are displaceable along the plates into working positions reaching further into the jaw space. A force member is slidable along the plates to force the gripping pieces into the working position, in which the working faces frictionally engage peripheral faces of the fastener. A handle coupled to the head is pivotally movable in opposing directions to push and release the force member, thereby controlling engagement and release of the gripping pieces with the fastener. | 12-25-2014 |
| 20150143961 | RATCHET LINE WRENCH TOOL - A ratchet line wrench tool includes a generally open head member and a handle connected thereto. The head member has a generally C-shape with an open portion on one end and an inner hollow portion. The head member further includes a ratchet gear having a generally C-shape with an open portion on one end that corresponds to the open portion of the head member and a plurality of outer surface teeth along an outer surface of the ratchet gear. The head member further includes a ratchet pawl disposed within the head member and engaging with the outer surface teeth enabling coupled rotation of the ratchet gear. The ratchet line further includes a removable tool insert having an insert portion having outer surface teeth and being sized and configured to close the open portion of the ratchet gear. | 05-28-2015 |
| 20150352696 | WRENCH - The invention provides a wrench, includes a body, a fixed jaw, a movable jaw, a slidable connecting member and a handle which is rotatably connected with the body. The movable jaw forms a slidable connection with the body via the slidable connecting member. The wrench includes a jaw locking mechanism which is rotatably connected with the handle. The jaw locking mechanism is used for restricting the slidable connecting member to move towards to and away from the fixed jaw relative to the body. The invention provides a wrench of which the distance between the jaws is capable of increasing. The fixed jaw and the movable jaw are capable of slipping away from the apexes of the workpiece, which realizes rotating the workpiece continuously and repetitiously. Thus the work efficiency of the wrench is improved. The wrench has a simple structure, and it is capable of enduring larger torque. At the same time, simple structure also simplifies the manufacturing process of the wrench, reducing the costs of manufacture. The first flexible member is internally installed in the body, which makes the first flexible member avoid contacting oil stain in use and the wrench provided by the invention more beautiful at the same time. The worm gear of the wrench uses a double start thread structure, which reduces the time of adjusting the distance between jaws and increases the bearable torque of the worm gear. | 12-10-2015 |
| 20160067847 | Movable spanner structure - A movable spanner structure contains: a first body, a second body, an adjustable bolt, a first coupling element, a locking member, a third body, and a second coupling element. The first body includes a first retainer, an accommodating groove, a quadrangle trench, a first orifice, a first cavity, a first connecting portion, and a second cavity. The second body includes a second retainer, a slidable extension, and a first toothed portion. The adjustable bolt includes a second toothed portion and a second orifice. The first coupling element is fixed in the first orifice. The locking member includes an abutting portion, a third orifice, and a first pressing portion. The third body includes a second connecting portion and a second pressing portion. The second coupling element is mounted in the first connecting portion and the second connecting portion, such that the third body is rotatably coupled with the first body. | 03-10-2016 |
| 20160082575 | OPERABLE RATCHET WRENCH - The present invention is directed to an operable ratchet wrench, which comprises a fixing jaw, a sliable jaw, a movable assembly, a handle, a stop pin and a driving notch. The slidable jaw is slidably disposed in the fixing jaw. The movable assembly is capable of moving axially in the fixing jaw to urge the slidable jaw to slide away. The handle is pivoted on the fixing jaw and capable of swinging with the fixing jaw. The stop pin is disposed in the handle. The stop pin is moved from a first position where the movable assembly is stopped from axial movement to a second position where the movable assembly is free for axial movement in response to swing operation of the handle. The driving notch is configured to allow the handle rotating relative to the fixing jaw. The present invention is provided with a convenient ratchet wrench. | 03-24-2016 |
| 20160089770 | ADJUSTABLE WRENCH - An adjustable wrench has a wrench body, a clamping element, and a ratcheting jaw. The wrench body has a handle, a head, and a thumbscrew. The head is formed on the handle and has a connecting block, a fixed jaw, a curved slot, two pin holes, a positioning pin, a mounting recess, two pivot holes, and a sliding slot. The clamping element is connected to the wrench body and has a sliding bar, a ribbed slab, and a movable jaw. The ribbed slab is formed on the sliding bar and is mounted in the sliding slot. The movable jaw has an engaging surface and a positioning block. The ratcheting jaw is a curved block capable of sliding forward and retracting backward inside the curved slot and has two mounting boards, a receiving recess, an engaging surface, an abutting surface, an engaging protrusion, a holding recess, and an elastic element. | 03-31-2016 |
