| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 081570110 |
With motor
| 38 |
| 081570150 |
Round work
| 26 |
| 081570220 |
Multiple drive or driven means
| 10 |
| 081570300 |
Parallel axis drive
| 10 |
| 081570290 |
Right angle drive
| 10 |
| 081570310 |
Common axis drive | 4 |
| 20130276590 | Variable Gear Ratio Ratchet - This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member. The locking member can be engaged with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. The locking member can be moved with regard to the gear mechanism to provide an increased gear ratio for the gear mechanism when desired. | 10-24-2013 |
| 20150336245 | SCREWDRIVER - The present invention provides a screwdriver which includes a shaft, a handle and a speed increasing mechanism, in which the speed increasing mechanism includes a central axle connected to the shaft and provided with a toothed part on its periphery, a first member is disposed in the interior of the handle, at least one gear is connected to the first member, and a geared sleeve is sheathed outside the gear, in which the inner side of the geared sleeve has teeth on corresponding positions, engaging with the gear which is disposed at a side part of the central axle and is engaged with the toothed part of the periphery of the central axle. The present invention also includes a locking mechanism addressing the problem of torque being not high. | 11-26-2015 |
| 20160000493 | HIGHLY STABLE GEAR DRIVE ADAPTER - The present invention is a highly stable gear drive adapter featuring a stabilized drive assembly. The drive assembly includes a drive shaft connected to a gear holder assembly, which couples to a gear shaft assembly, which in turn couples to a tool adapter. Each component of the drive assembly stabilizes or is stabilized by another component. A cover aperture and a drive shaft bearing stabilize the drive shaft laterally. Additionally, an interface between a polygonal band on the surface of the drive shaft and a polygonal aperture in the gear holder assembly also stabilizes the drive shaft laterally. A retaining ring and a shaft stop stabilize the drive shaft axially. The gear shaft assembly includes two gear shaft bearings laterally stabilizing a gear shaft and a gear shaft channel that contains the drive shaft bearing. A tool adapter bearing stabilizes the tool adapter. | 01-07-2016 |
| 20160375562 | Speed-Selectable Hand Tool - A speed-selectable hand tool includes a handle, a cage member fixed to the handle, a shaft member extending into the cage member, a sleeve member sleeved on the shaft member and extending into the cage member, a plurality of transmission members each meshing with the shaft member and the sleeve member, a plurality of pawls mounted to the cage, a knob surrounding the pawls, and an outer casing mounted with the transmission members. The speed-selectable hand tool is operable to serve as a non-ratcheting hand tool or a ratcheting hand tool by rotating the knob relative to the cage member to actuate the pawls. The rotational speed of the shaft member relative to the handle is selectable through operation of the outer casing. | 12-29-2016 |
| 081570240 |
With support | 1 |
| 20090064824 | BOLT-TIGHTENING TOOL - A bolt-tightening tool for tightening two bolts at the same time. The bolt-tightening tool includes a first rotating shaft coupled with a motor shaft and a second rotating shaft coupled with a motor case. A first bolt is tightened with the first rotating shaft, while a second bolt is tightened with the second rotating shaft, whereby the first and the second bolts are tightened with a same amount of torque. | 03-12-2009 |
| Entries |
| Document | Title | Date |
|---|
| 20080276760 | Driver - Provided is a screwdriver. The screwdriver includes: a driver bit; a first main gear axially coupled to the driver bit; first side gears meshed with the first main gear; a second main gear disposed on a same shaft of the first main gear; second side gears meshed with the second main gear and one end of the first side gear; a coupling shaft having one end axially coupled to the second main gear; a front body for applying a rotary power to the second main gear; a rear body connected to the other end of the coupling shaft and rotatably coupled to one end of the front body for transferring power in a driver bit shaft direction; and a clutch interposed between the second main gear and the rear body for blocking a rotary power to be transferred from the front body to the second main gear. | 11-13-2008 |
| 20080282845 | Indexable Pry Tool and Splined Coupling Arrangement Therefor - An indexable tool includes a handle having a first prong formed with a first splined orifice and a second prong formed with a second splined orifice. An indexable body has a third splined orifice aligned with the first and second splined orifices. A splined coupling arrangement rotatably joins and selectively locks and unlocks the handle and the indexable body together. The coupling arrangement includes a push button, first and second adjacently disposed inserts, a retainer, a cap and a spring. In a locked position, the spring is biased to hold external splines of the first and second serrated inserts in common engagement with the first, second and third splined orifices to prevent relative rotation between the indexable body and the handle. In an unlocked position, the push button is pushed against the bias of the spring to move external splines of the first serrated insert into exclusive engagement with the third splined orifice of the indexable body, and to move the external splines of the second serrated insert into engagement with the splined orifice of the second prong enabling rotary adjustment of the indexable body relative to the handle and about the cylinder. | 11-20-2008 |
| 20080282846 | Speed multiply screwdriver handle - A screwdriver is disclosed including a handle, a shaft, and a gearbox disposed between the handle and the shaft. The gearbox is structured and arranged to cause rotational motion of the shaft at a first rate due to rotational motion imparted on the handle at a second rate. In an embodiment, the first rate is greater than the second rate. | 11-20-2008 |
| 20090090219 | SCREWDRIVER EXTENSION - A screwdriver extension includes a supporting plate, a transferring part, a transmission shaft, and a receiving sleeve. The transferring part includes a housing and a plurality of meshed gears mounted in the housing. The supporting plate connects the transferring part to an electric screwdriver. The transmission shaft is driven by the electric screwdriver and drives the gears, which in turn drives the receiving sleeve. The sleeve receives a screwdriver head. The screwdriver extension helps the electric screwdriver to tighten screws along axes of corresponding holes. | 04-09-2009 |
| 20100095811 | QUICK-CHANGE SOCKET AND HEX KEY RETAINER ASSEMBLY FOR A FASTENER INSTALLATION TOOL - A system, apparatus, and method for installing fasteners are disclosed involving a fastener installation tool and a socket assembly. The fastener installation tool comprises a tool component and a gear head. The gear head comprises a lever, a retaining slide, a retaining slide housing, and at least one gear. The socket assembly comprises a socket, a hex key, and a hex key retainer. An end of the drive shaft of the socket has an annular groove around the circumference of the exterior surface of the drive shaft. When the retaining slide is slid into a locked position, the retaining slide engages the annular groove of the drive shaft of the socket, thereby attaching the drive shaft of the socket to the gear head of the fastener installation tool. A socket gear of the gear head matingly engages the drive shaft of the socket to rotate the socket. | 04-22-2010 |
| 20100180731 | Variable Gear Ratio Ratchet - This invention relates to a fastener driving device including a variable ratio gear mechanism that enables the ratio of the rotation of the handle to the rotation of a driving bit extending from the handle to be varied to allow the bit to rotate at different speeds from the handle. The device includes a gear mechanism disposed within a housing for the device that includes a locking member and a biasing member. The biasing member urges the locking member into engagement with the gear mechanism to lock the gear mechanism in a configuration for a 1:1 gear ratio. A selector switch is secured to the device over the gear mechanism and is operable to move the locking member into and out of engagement with the planetary gears against the bias of the biasing member to provide an increased gear ratio for the gear mechanism when desired. | 07-22-2010 |
| 20100263494 | INDEXABLE OFFSET ADAPTOR - An adaptor for a power drill includes an offset drive and means to adjust the rotated position of said offset drive with respect to the chuck of the drill. | 10-21-2010 |
| 20100326243 | RATCHET WRENCH WITH COLLAR-ACTUATED REVERSING MECHANISM - A ratchet wrench has a handle and a ratchet housing that both extend along a first axis. A drive body is connected for rotation relative to the ratchet housing about a second axis, perpendicular to the first axis. A yoke substantially encircles the body and is connected to the ratchet housing and a direction selector is coupled to the drive body and extends along the second axis. The direction selector is rotatable about the second axis with respect to the drive body between a first position, in which the yoke is fixed for counterclockwise rotation with the drive body about the second axis, and a second position, in which the yoke is fixed for clockwise rotation with the drive body about the second axis. A direction actuator is connected to the direction selector for rotation about the first axis to move the direction selector between the first and second positions. | 12-30-2010 |
| 20110000342 | WRENCH - An improved wrench includes a housing with opposite first and second ends and a pair of gears rotatably mounted in the first and second ends respectively. Each gear has a cylindrical sidewall with opposite ends and a plurality of teeth forming a sprocket extending radially outwardly from the sidewall between the opposite ends. A chain is trained about the gears within the housing. Upper and lower bushings are mounted in each end of the housing adjacent the sidewall of the respective gears to prevent contact between the gear sidewall and the housing. | 01-06-2011 |
| 20120222522 | OIL FILTER REPLACEMENT DEVICE - According to the present invention, the oil filter replacement device has a number of pins for clamping an oil filter, and the pins are extended eccentrically from corresponding secondary gear members. The secondary gear members are engaged to spin simultaneously by a main gear member. As such, the pins could be adjusted to fit on oil filters of various sizes. Additionally, each pin is rotatable and has at least a flat face. As the pins rolls along the circumference of the oil filter, their flat faces are turned to interface the flat faces around the oil filter. As such, the oil filter is tightly and reliably clamped by the oil filter replacement device, thereby preventing the problem of uneven exertion of force and deforming the oil filter. | 09-06-2012 |
| 20130112046 | SCREWDRIVER TOOL WITH IMPROVED CORNER FIT FUNCTION - An automatic fastener driving tool, or an attachment, has a narrow front-end profile so that it is capable of driving screws that are in hard-to-reach positions, such as corners or channel members. The slide body subassembly has an extending mechanism, so that the fastener drive elements extend farther away from the main body structure of the tool/attachment, while still providing a stable and rugged overall tool structure to drive larger screws. The “lick-out” dimension is increased without also increasing the length and width of the feed tube. | 05-09-2013 |
| 20130199341 | BOLT TENSIONER - A bolt tensioner is provided with: a housing; a puller bar; an oil pump unit; a puller bar socket; a locking ring; a nut socket; and a nut rotation device. The housing is structured with a first housing that houses the puller bar and a second housing that houses the nut socket, and the first and second housings are integrally connected so that regardless of the shape of the member to be fastened, nuts can be appropriately fastened to/loosened from stud bolts. | 08-08-2013 |
| 20130283980 | Apparatus, System and Method for Tensioning an Emergency Brake System - A brake tensioning system and method are described herein for use on vehicles. The system includes a tool, and the method includes the use of the tool to effectuate tensioning of a brake system conveniently, accurately, and repeatably. | 10-31-2013 |
| 20140083255 | UNIVERSAL SELF-ADJUSTING, OPEN-ENDED POWERED WRENCH - Examples disclosed herein relate to one or more wrench devices. An apparatus may include a drive gear assembly configured to be coupled to a power source. The drive gear assembly may include a plurality of drive gears. The apparatus may include a cam assembly coupled to the drive gear assembly. The cam assembly may include a first cam and a second cam. Further, the first cam and the second cam may be configured to interact with each other to move a part. | 03-27-2014 |
| 20140305264 | Ratchet Mechanism - A ratchet mechanism having a plurality of interconnected rotating drive members having teeth, one of the drive members being a stationary drive member and another of the drive members being a movable intermediate drive member, a first pawl member and a second pawl member movable in alternating reciprocating manner, wherein the stationary drive member is alternatingly rotated in a single direction by movement of the pawl members. | 10-16-2014 |
