| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 081570110 | With motor | 38 |
| 20080196555 | Centrifugal Electric Impact Wrench - Disclosed is a centrifugal impact wrench using an electric driving motor, which is rotated by electricity supplied from an electric power source, as a power source. The electric impact wrench includes: a sun gear | 08-21-2008 |
| 20080264212 | HANDHELD POWER TOOL, IN PARTICULAR A POWER DRILL OR SCREWDRIVER - A handheld power tool, in particular a power drill or power screwdriver, has a tool holder, which is displaceably received in a housing and which can be driven via a drive unit; a microswitch that can switch the drive unit on and off is provided, which is switchable upon an axial displacement motion of the tool holder via an actuating element. The actuating element is joined axially solidly to the tool holder, so that the axial displacement motion of the tool holder at the same time acts as the displacement motion of the actuating element, which motion actuates the microswitch. | 10-30-2008 |
| 20090025516 | Powered wrench - A powered wrench driven by a fluid motor using a gear to gear system. The fluid motor causes a primary gear to turn, which directly engages a second gear attached to a workpiece and rotates that workpiece in response to operation of the fluid motor. The fluid motor can be located spaced from the handle of the wrench or in the handle of the wrench. An extension can also be included to extend the reach of the wrench. | 01-29-2009 |
| 20090031865 | POWER TOOL, BATTERY, CHARGER AND METHOD OF OPERATING THE SAME - A power tool includes a housing assembly having a first housing portion and a second housing portion supported for pivoting movement relative to the first housing portion about a pivot axis. The first housing portion supports a motor. The second housing portion includes a chuck for supporting a tool element. The power tool also includes a gear supported within the housing assembly for rotation relative to at least one of the first and second housing portions about the pivot axis. The gear is operable to transfer drive force from the motor to the tool element. | 02-05-2009 |
| 20090078091 | Powered Wrench - The problem of reaching a work piece, such as a nut on a bolt, in a restricted space not permitting traditional means of applying torque is addressed with a powered wrench. The wrench translates motor power on one axis to an engageable socket on a perpendicular axis through an innovative gearbox. Means are provided to shift from a gear ratio for power to a gear ratio for speed by simple manipulation, while different size work pieces can be accommodated through socket change parts. | 03-26-2009 |
| 20090165600 | PNEUMATIC FASTENER DRIVING TOOL - A pneumatic fastener driving tool is configured to drive a threaded fastener using both linear and rotational motion. The tool allows a fastener to first be driven linearly, without rotation, through a surface material and into a substrate material, preferably to a depth that causes the fastener to at least pierce the substrate material. The tool then rotates the threaded fastener and causes it to fully engage the substrate material, thereby fastening the surface material to the substrate material. The tool has sufficient linear force to drive a fastener into relatively hard substrate materials, such as steel studs, and has a stationary air motor assembly to reduce recoil generated during the driving process. The tool further comprises a gear reducer assembly that uses a compound planetary gear in order to reduce the overall length of the tool. | 07-02-2009 |
| 20100043603 | POWERED RATCHET ASSEMBLY AND RELATED METHOD - A powered ratchet tool generally includes a housing having a handle portion with a trigger assembly. A motor has an output shaft member that rotates about a longitudinal axis. A ratchet assembly includes a ratchet hub member that connects to the output shaft member. A selector member connects to the ratchet assembly and is operable to change the ratchet assembly between a tighten condition and a loosen condition. A drive member is connected to the ratchet assembly. The drive member rotates about the longitudinal axis about which the ratchet hub, the selector member and the output shaft member rotates. | 02-25-2010 |
| 20100107824 | POWER WRENCH WITH SWIVELLING GEAR CASING - A power wrench including a housing, a rotation motor, a reduction gearing connecting the motor to an output shaft, and a separate gearing casing which is rotatively and detachably mounted on the housing and supporting the output shaft. The reduction gearing is divided into a first gearing stage located in the housing and a second gearing stage located in the separate gearing casing. The first gearing stage and the second gearing stage are interconnected via an intermediate spindle, and the motor is connected to the first gearing stage via a hollow drive shaft surrounding the intermediate spindle and an angle gear. A torque sensor is associated with the first gearing stage in the form of strain gauges mounted on an elastically deformable sleeve connecting a ring gear of the first gearing stage to the housing. | 05-06-2010 |
| 20100199812 | Power tong - A power tong continuously rotates tubulars for spinning and torquing threaded connections. Continuous rotation is achieved through a rotating jaw having grippers that grip the tubular and continuously rotate with it. Hydraulic and electrical power necessary for actuating the grippers is generated on board. A serpentine belt system turns the motors of the on-board hydraulic power unit and electric generators to supply the grippers with hydraulic and electrical power. The serpentine belt system is driven by a secondary drive mounted on a fixed frame. The rotating jaw is rotatably mounted to the fixed frame and driven during continuous three hundred and sixty degrees of rotation by a primary drive, mounted on the fixed frame. A fixed jaw is also mounted to the frame. Tubular grippers on the fixed jaw grip a first side of a tubular joint. The grippers on the rotating jaw grip the opposite second side of the tubular joint. High torque low-rotational speed applied to the rotating jaw torques the joint. Low torque high-rotational speed applied to the rotating jaw spins the joint. | 08-12-2010 |
| 20100224033 | HANDHELD POWER TOOL - The invention relates to a hand-held machine tool, particularly a rotary percussion drill, comprising an electric motor ( | 09-09-2010 |
| 20100229691 | POWER WRENCH WITH REACTION BAR CONTROLLING MEANS - A power wrench includes a housing divided into two parts which are rotatable relative to each other: a first part including a handle and a transverse section lodging a rotation motor, and a second part including a reduction gearing, an output shaft and a rigidly attached and laterally extending reaction bar. A swivel connection is provided between the housing parts and includes an angle sensor arranged to generate signals in response to relative angular movements between the housing parts, and a power control unit communicates with the angle sensor and is arranged to at least substantially reduce the motor power as a pre-set maximum angular movement between. the housing parts is exceeded as the motor is started. | 09-16-2010 |
| 20110126676 | POWER RATCHET ASSEMBLY - A power ratchet assembly has a handle, a power shaft, a sleeve, a crankshaft, multiple planet gears, multiple pins, two support bearings and a ratchet head device. The crankshaft has an outer surface. The support bearings are securely mounted around the outer surface of the crankshaft. Because the crankshaft is supported by the support bearings, the crankshaft is effectively stabilized so mitigating vibration of the crankshaft and reducing wear of the planet gears and noise and increasing useful life of the power ratchet assembly. | 06-02-2011 |
| 20120103142 | POWERED WRENCH - A powered wrench is provided comprising a head formed with an open end, and defining a rotational axis extending through the head. An engaging member is seated in a recess for rotation about the rotational axis, and comprises an outer surface provided with a plurality of gear teeth. A plurality of drive gears transfers input torque from motive structure to the engaging member for driving rotation of the engaging member about the rotational axis. A plurality of auxiliary idler gears is arranged between the plurality of drive gears and the gear teeth of the engaging member such that at least one auxiliary idler gear is always engaged with the gear teeth of the engaging member. | 05-03-2012 |
| 20120137833 | Reversible Rod Tong Assembly - A rod tong assembly has inner and outer rings. The outer ring has rollers disposed about a central opening. The inner ring disposes in the outer ring and has three jaws for engaging a rod element. The outer ring is rotated clockwise to make a rod connection and is rotated counter-clockwise to break the rod connection. When rotated, the rollers pivot the opposing jaws pivot against flats of the rod element. Further rotation of the outer ring then rotates the inner ring to respectively tighten or loosen the connection. To return the assembly to its default condition, operators switch a lock disposed on the inner ring to a return condition. When the outer ring is then rotated back, the lock catches on the outer ring and allows the inner ring to rotate in the same direction as the outer ring. | 06-07-2012 |
| 20120210827 | ROD TONG ASSEMBLY - A tong assembly includes a case assembly and a tong head assembly disposed in the interior of the case assembly and adapted to engage a first sucker rod. A transmission assembly engaged to a hydraulic motor and including a backup tong assembly. The backup tong assembly includes a backup tong having a first end and an oppositely disposed second end adapted to hold a second sucker rod. A load pin engaged to the second end of the backup tong and an outer casing of the transmission assembly, the load pin includes strain gages for measuring a force applied to the first end of the backup tong to output a force signal. A rotary encoder engages a shaft of the hydraulic motor and outputs a position signal when a. A controller generates an output signal based on only one of the force signal or the position signal when the force signal is greater than a predetermined value or when the position signal is within a predetermined range of values. The output signal actuates a valve to direct fluid from the hydraulic motor to a hydraulic fluid reservoir. | 08-23-2012 |
| 20120234139 | PNEUMATIC RATCHET WRENCH WITH A PNEUMATICALLY ACTUATED REVERSING DEVICE - A pneumatic ratchet wrench having a pneumatically actuated reversing device includes two cylinders disposed downstream of two branch conduits, and two plungers, each slidable in the respective cylinder by a burst of pressurized air from the branch conduits to bring an actuator into engagement with a direction selector so as to turn the direction selector in a selected one of clockwise and counterclockwise directions for unidirectionally rotating a drive body. The operation of direction selection is easy and handy to conduct. | 09-20-2012 |
| 20120272792 | POWER TONG - A power tong continuously rotates tubulars for spinning and torquing threaded connections. Continuous rotation is achieved through a rotating jaw having a grip that grips the tubular and continuously rotates with it. A serpentine supplies directly or indirectly power to actuate the grip. The serpentine is driven by a secondary drive mounted on a fixed frame. The rotating jaw is rotatably mounted to the fixed frame and driven during continuous three hundred and sixty degrees of rotation by a primary drive, mounted on the fixed frame. A fixed jaw may also be mounted to the frame. Tubular grippers on the fixed jaw grip a first side of a tubular joint. The grip on the rotating jaw grips the opposite second side of the tubular joint. High torque low-rotational speed applied to the rotating jaw torques the joint. Low torque high-rotational speed applied to the rotating jaw spins the joint. | 11-01-2012 |
| 20120279362 | Powered Bolt-Through Tourque Wrench - A torque wrench assembly includes a housing having a motor assembly and a socket defining an opening extending along a longitudinal axis from a first end to a second end and having at least one fastener driving portion disposed at one of the first end and the second end of the socket. The torque wrench assembly includes a socket drive interface coupled to the housing and disposed in operative communication with the motor assembly and with the socket. | 11-08-2012 |
| 20120297932 | Two Handed Portable Power Wrench - A hand-held powered wrench includes a primary handle and a secondary handle. A motor is mounted on a primary handle. The secondary handle provides a second hand grip position which is significantly displaced from the primary handle axis, and includes a motor control for starting and stopping the motor. By having the significant displacement of the motor controlling second hand grip position, the operator naturally chooses a better stance and naturally dissociates the motor control hand from the torque sustaining hand in operation of the power wrench. The hand-held powered wrench can be used such as for safely exercising fire hydrant valves. | 11-29-2012 |
| 20130025416 | BOX WRENCH WITH SPLIT GEAR BODY AND INTERCHANGEABLE DRIVE INSERT - A tool that includes an interchangeable drive head and a split gear body for transmitting torque to the drive head. The compact nature of the split gear body allows for an automatic power means, for example, an electric or air motor, to supply torque through the split gear body into the interchangeable drive head. Further, the interchangeable drive head includes a gear that is positioned around a receiving portion for receiving a head of a workpiece, so that the interchangeable drive head itself is part of the gear assembly. The above structure allows for a compact design while still allowing for an automatic power means to transmit the torque to the workpiece. | 01-31-2013 |
| 20130055858 | TOP DRIVE WITH SLEWING POWER TRANSMISSION - A power transmission for a slewing interface includes a rotor rotatable relative to a stator about a slewing axis, at least one drive sprocket mounted on the stator adjacent the rotor, a first drive cooperating with the at least one drive sprocket, at least two satellite sprockets on the rotor and spaced around the rotor, at least one drive belt mounted around the drive sprockets and around the satellite sprockets in driving engagement collectively therewith, power is delivered continuously from the first drive to at least one of the satellite sprockets at all times during rotation of the rotor about the slewing axis. | 03-07-2013 |
| 20130167691 | DRYWALL SCREWDRIVER - A drywall screwdriver includes a housing, a screw-in depth limiting element, and a gearing unit. The drywall screwdriver further includes a coupling unit, an output spindle, an electric motor, and a battery receptacle region. The housing of the screwdriver has at least one hand grip region. An overall weight of the drywall screwdriver is less than 1.2 kg. | 07-04-2013 |
| 20130192427 | APPARATUS FOR CONNECTING OR DISCONNECTING A THREADED COUPLING BETWEEN TWO RISER JOINTS - An apparatus for connecting or disconnecting a threaded coupling between two riser joints, comprising:—a frame ( | 08-01-2013 |
| 20130239753 | PNEUMATIC DRIVEN RATCHET WRENCH - A pneumatic driven ratchet wrench comprises: a wrench housing; a pneumatic motor; a ratchet wheel unit; two gear members; an urging member for biasing the gear members to engage the ratchet wheel; a transmission unit connected to the gear members and driven by the pneumatic motor; and a gear-selecting unit including an operating knob, a switching member and two pushing members, The operating knob is mounted on the wrench housing and is disposed distal from a head section of the wrench housing for driving movement of the pushing members. Each of the pushing members pushes a respective one of the gear members to move away from the ratchet wheel unit when moved from a releasing position to a pushing position. | 09-19-2013 |
| 20130255446 | POWER TONG APPARATUS - A power tong apparatus is provided. The power can include a vertical riser assembly for attaching to a drilling rig, and a swing arm assembly pivotally attached to the vertical riser assembly. The apparatus can include a power tong assembly pivotally attached to the swing arm assembly. The power tong assembly can include a back-up tong to grip a first pipe, and a power tong to grip and rotate a second pipe to make or break a joint between the pipes. The power tong can include a jaw assembly that, when rotated, grips the second pipe. The power tong can include a hydraulic motor to operate a drive chain or belt to rotate the jaw assembly. | 10-03-2013 |
| 20130255447 | Automated Screw Driving Device - An automated screw driving device comprises: a gun housing; a first motor mounted to the gun housing; a fly wheel mounted to the gun housing and driven by the first motor to rotate relative to the gun housing; a carrier mounted slidably on the gun housing and having a wheel-contacting member that is movable toward the fly wheel to contact the fly wheel so as to permit the power of the first motor to be transferred to the carrier to cause rapid sliding movement of the carrier upon rotation of the fly wheel about its axis; a screw driver mounted rotatably to the carrier; a gear set coupled to the screw driver; and a second motor coupled to the gear set for driving rotation of the screw driver relative to the carrier. | 10-03-2013 |
| 20140165788 | ELECTRICAL WRENCH - An electrical wrench includes a motor, a transmission mechanism, a ratchet assembly and a controlling member coupled to each other. The transmission mechanism is configured to provide idle travels. The ratchet assembly receives the rotating torque output by the transmission mechanism and drives the ratchet therein in a single direction. The controlling member is connected with the motor and controls the motor to rotate in the opposite direction when detecting the motor is stalled. The electrical wrench thus provides impacting action by electrical control and simplifies the mechanical structure of the tool, which not only reduces the manufacturing cost, but also prolongs the working life of the tool. | 06-19-2014 |
| 20140182419 | Motor Accelerator for Automatic Screwdriver - A motor accelerator for automatic screwdriver, which is mainly combined with a motor mechanism in automatic screwdriver. The accelerator comprises a bearing (or sleeve) or more interconnected bearings (or sleeves), so as to increase the mass and radius of motor (rotor) and the rotational speed and rotational inertia, thus substantially improving the performance and efficiency; as the accelerator is made of metal materials, this enables satisfactory heat dissipation for rotor; moreover, the accelerator is fitted with a spring (or magnet) to connect the motor, allowing the automatic screwdriver to realize mechanical slow start with small energy (small airflow or low current) output and auxiliary braking function when the automatic screwdriver is stopped. | 07-03-2014 |
| 20140230609 | Drywall Screwdriver - A drywall screwdriver includes a housing, an element delimiting the depth of engagement, a drive unit, an outlet spindle, and a planetary gear that comprises at least one hollow wheel. The drywall screwdriver further comprises at least one support element that is different from a housing element and that at least partially surrounds the ring gear of the planetary gear. | 08-21-2014 |
| 20140305265 | DEVICE FOR ACTIVATION OF GRIPPING JAWS IN CONTINUOUSLY ROTATING TORQUE TONGS FOR USE UNDER PULLING AND OPENING OF THREADED CONNECTIONS - Continuously rotating power tong for making the threaded connections ( | 10-16-2014 |
| 20150352698 | TWO-STAGE LOCKING ELECTRIC SCREWDRIVER - A two-stage locking electric screwdriver, with its main improved features as follow: the electric screwdriver has pre-locking and locking functions; the torque settings of the electric screwdriver can be easily modulated, and meanwhile the torque accuracy and energy efficiency can be improved; the torque modulation type is external modulation, so that the torque modulation can be carried out externally and even the torsion spring can be replaced. Meanwhile, the component structures inside the electric screwdriver is improved through a design that the motor directly drives the clutch and then drive the screwdriver head unit, and that an internal gear clutch is used to replaced the gear unit and clutch unit, so that the number of parts is dramatically reduced to save production cost. During general rotation, the electric screwdriver will not drive the clutch unit, and when the torque jumps to the set value, the internal gear clutch rotates and generates a torque. | 12-10-2015 |
| 20160097246 | PIPELINE WRENCH - Embodiments of the present invention relate to a pipeline wrench, that includes a housing which has a first end and a second end opposite the first end, a roller coupled with the housing near the first end of the housing, an idler pulley coupled with the housing, a belt between the roller and at least a portion of an opening, the belt extending beyond the first end of the housing, wherein a position of the idler pulley is adjustable such that a change in position results in a change in an amount of the belt that extends beyond the first end, and a first motor coupled with the axle of the roller, wherein operation of the first motor causes the axle to rotate. | 04-07-2016 |
| 081570130 | Right angle drive | 6 |
| 20140020514 | INLINE HANDLE TOOL WITH MID-TOOL CABLE-EXIT - Disclosed herein are powered torque tools that may be used in assembly operations in confined spaces, such as doors-on automotive assembly operations. In various embodiments, the torque tools include an elongated housing having a proximal end and a distal end, wherein the proximal end includes a gripping handle. The disclosed torque tools also may include a drive element disposed in the distal end portion and adapted to rotatably engage a threaded fastener, a gear assembly operatively connected within the housing and operatively coupled to the drive element, a drive motor disposed within the gripping handle, and a cable-exit extending from the housing and positioned between the gripping handle and the distal end portion, wherein the cable-exit is configured to electrically couple the motor to a control cable. | 01-23-2014 |
| 20140182420 | ELECTRICAL WRENCH - An electrical wrench includes a housing, a power member, a reversing mechanism, a support transmission assembly, an opening gear, a main control assembly and a restoring assembly. The housing includes having two projections, for example shaped as claws, arranged oppositely to cooperatively define an entrance. The power member, the reversing mechanism, the support transmission assembly and the opening gear are cooperatively coupled to one another and accommodated in the housing. The opening gear includes an outer teeth portion, an opening and a driving portion in communication with the opening, a tubular member for engaging with a fastener positioned in cooperation with the opening gear through the entrance. The restoring assembly includes an identifying portion, a sensor for sensing the position of the identifying portion, a control circuit board, a restoring switch and a restoring switch operator. | 07-03-2014 |
| 20150096413 | Quick Release Ratchet Driver - A ratchet having an internal motor for rotatably displacing a mechanical fastener. The motor has a torque capacity that provides a minimum torque level. The minimum torque level is below a maximum torque level that is used to secure, or loosen, the mechanical fastener at/from a tightened position. When the mechanical fastener is being moved toward the desired tightened position, the motor of the ratchet may allow for relatively rapid rotational displacement of the mechanical fastener until the torque capacity of the motor is reached. The remaining torque, or maximum torque level, then needed to secure the mechanical fastener in, or at, a tightened position may be provided by the user pushing or pulling on the handle of the ratchet, wherein a wheel in the head portion having a drive may thereby be rotated so that a mechanical fastener that is operably connected to the drive is also rotated. | 04-09-2015 |
| 20150306747 | Screw driving device for recognizing screwing accessories in the coaxial position - A screw driving system including: a screw driving device having a body to which there is mounted an output shaft so as to be mobile in rotation, the body housing a motor connected to the output shaft by a transmission; at least one screwing accessory cooperating with the output shaft to be driven in rotation; a reversible attachment for the screwing accessory; and elements for recognizing the accessory when it is fixedly attached to the device via the reversible attachment. The elements for recognizing include an electronic tag reader attached to the device and an electronic tag fixedly attached to the accessory, the reader and the tag being positioned, when the accessory is fixedly attached to the device, in the axis of the output shaft, the reader being connected by a power supply and/or data transmission wire, the wire extending in the device in the axis of the output shaft. | 10-29-2015 |
| 20160075002 | Electric Ratchet Wrench - An electric ratchet wrench includes a driving member rotatably mounted in a body for driving a fastener. A pawl device is pivotably mounted to the driving member. First and second ring gears are rotatably mounted around the driving member and mesh with the pawl device. A direction switching rod is pivotably mounted to the driving member. A transmission shaft is rotatably received in the body and includes an end connected to a motor shaft of a motor. The other end of the transmission shaft is connected to a bevel gear disengageably meshed with the first and second ring gears. The transmission shaft can be driven by the motor shaft to drive the bevel gear, the first and second ring gears, and the driving member to rotate. | 03-17-2016 |
| 20160075003 | Electric Ratchet Wrench - An electric ratchet wrench includes a driving member rotatably mounted in a body for driving a fastener. A pawl device is pivotably mounted to the driving member. First and second ring gears are rotatably mounted around the driving member and mesh with the pawl device. A direction switching rod is pivotably mounted to the driving member. A spur gear is mounted on a transmission shaft rotatably received in the body and meshes with the first and second ring gears. A clutch member is mounted on the transmission shaft and is releasably coupled with another clutch member coupled to a motor. The transmission shaft can be driven by the motor to drive the spur gear, the first and second ring gears, and the driving member. | 03-17-2016 |
