"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7677143 | Impact tool and method An impact tool will fit around a fastener such as a nut or bolt head. The tool has an annular section with an outside and an inside surface encircling the central axis of the fastener. The outside surface has at least one recess with a striking surface and guide sur... | 03/16/2010 |
| 7281310 | Baluster driver tool and method of using same A baluster driver tool for rotating a baluster to threadably secure it to a support. The driver tool includes a housing having a connector at one end for connecting it to a drill and a baluster-engaging member at the opposite end for receiving the baluster. The balu... | 10/16/2007 |
| 7263920 | Torque impact wrench A torque impact wrench having an elongated tubular metal housing. The front end of an impact wrench is secured to the rear end of the housing by a motor mount. The front end of the drive shaft of the impact wrench is inserted into the rear of an impact socket. The r... | 09/04/2007 |
| 7258048 | Manually operated impact wrench A manually operated impact tool is provided and includes: an impact mass; an anvil rotatably disposed relative to the impact mass; an input member operatively connected to one of the impact mass and anvil mass for imparting a relative rotation between the impact mas... | 08/21/2007 |
| 7255029 | Manually operated impact tool A manually operated impact tool having: a handle; an anvil movably connected to the handle, the anvil having an anvil surface, the anvil further having a fastener engagement portion for engaging a fastener to be loosened or tightened, the fastener engagement portion... | 08/14/2007 |
| 7207247 | Hammer head wrench An L-shaped wrench with a handle and a shank attached to a hammer head. The hammer head may be hexahedral with the handle and shank attached to adjacent flats with opposing flats forming impact surfaces for applying an axial force along the handle or shank with an i... | 04/24/2007 |
| 7207393 | Stepped drive shaft for a power tool A shaft comprises an input portion and a tang. The tang has a first section, a second section, and a radial bore. The second section is disposed between the first section and the input portion along an axis. A radial cross section of the first section is less than a... | 04/24/2007 |
| 7194939 | Pneumatic wrench having reinforced strength A pneumatic wrench includes a pneumatic motor, a striking mechanism, and a drive shaft. The striking mechanism includes a support seat, a cam, a cover, and a hammer. Thus, the pivot shaft of the hammer has two opposite sides each formed with a reinforcing rib to rei... | 03/27/2007 |
| 7140282 | Pneumatic wrench having reinforced strength A pneumatic wrench includes a pneumatic motor, a striking mechanism, and a drive shaft. The striking mechanism includes a cylindrical support seat, a cam, a cover, and a hammer. The hammer has a protruding engaging portion and a reinforcing rib juxtaposed to the eng... | 11/28/2006 |
| 7089833 | Air actuated pneumatic impact wrench lug bolt tool The invention relates to a device utilizing compressed air for loosening and tightening fasteners that are located in hard to access areas. The device enables a single operator to stabilize the device while applying pressure via a pneumatic hammer to loosen or tight... | 08/15/2006 |
| 7080582 | Screwdriver tool A screwdriver tool has a driving body and a tool shank mounted in the driving body so it can rotate about its axis. A device for transmitting a torque from the driving body to the tool shank interrupts the torque transmission if a predefined limiting torque is excee... | 07/25/2006 |
| 7080580 | Lug wrench A lug wrench having a nut-receiving socket on a shank, and a crossbar joined to the shank to extend transversely, e.g. perpendicularly, thereto. The lug wrench may include a wedge or a second socket joined to the shank. First and second handle members are joined to ... | 07/25/2006 |
| 7059424 | Apparatus for rotating a threaded closure device An apparatus for rotating a threaded tightening device includes a guide and an anvil utilized to impact a lug on the threaded tightening device to rotate the tightening device onto or off of a threaded member. The guide has a frame with a support sleeve attached the... | 06/13/2006 |
| 7051628 | Impact wrench An impact wrench is disclosed. The wrench has a handle and a housing pivotally secured to one end of the handle. A socket drive cooperates with the housing and the socket drive receives a socket for engagement with a fastener. A follower is associated with the housi... | 05/30/2006 |
| 7044035 | Hammer wrench assembly and method of use A hammer wrench assembly and method of use that includes a safety handle for use with a hammer wrench. The hammer wrench is fitted with a female coupling. The safety handle is fitted with a male coupling adapted to mate with the female coupling. The male coupling is... | 05/16/2006 |
| 7036406 | Impact wrench having an improved anvil to square driver transition An anvil adapted to be received within an impact wrench comprises a round body and a square head. The square head is formed at an end of the round body. A tapered ramp extends from the round body to the square head. A radius is formed in the tapered ramp. The radius... | 05/02/2006 |
| 7021164 | Tire sensor insertion tool and method A tool for insertion of a sensor to a predetermined depth within a bore includes an elongate tool tip terminating at a tip end, a handle affixed to the tip, and an axial passageway extending through the tip and handle to a tool end. A window is provided extending tr... | 04/04/2006 |
| 6997087 | Manually operated impact tool A manually operated rotatable impact tool including: a driven member having means for retaining and driving a fastener about an axis, the driven member further having at least one impact stop offset from the axis; a driving member rotatably connected to the driven m... | 02/14/2006 |
| 6938526 | Impact wrench having an improved anvil to square driver transition An anvil adapted to be received within an impact wrench comprises a round body and a square head. The square head is formed at an end of the round body. A tapered ramp extends from the round body to the square head. A radius is formed in the tapered ramp. The radius... | 09/06/2005 |
| 6922933 | Primer removal tool A primer removal tool comprising a starter tap, a holder for the starter tap, one or more setscrews passing through the holder and against the starter tap for securing the starter tap in the holder, a handle, a spacer bushing connected to the center of the handle, a... | 08/02/2005 |
| 6918325 | Electric wrench for vehicle repairing The present invention relates to an electric wrench for vehicle repairing which comprises a DC driving motor, transmission gears, a clutch, a power accumulator and a transmission shaft. When the DC driving motor rotates, it will drive the transmission gears which wi... | 07/19/2005 |
| 6889778 | Rotary tool A rotary tool, such as an impact wrench, operable in a forward mode and a reverse mode. The rotary tool includes a housing having a forward end and supporting a motor. The motor has a motor shaft extending axially through the housing and defining an axis. The rotary... | 05/10/2005 |
| 6889584 | Wrench A wrench includes a main shaft having a working portion provided at the top thereof; a torsion member having an elastic restoring force against torsion about the axis of the main shaft; at least one operating handle disposed so as to intersect with the middle of the... | 05/10/2005 |
| 6814159 | Impact tool driver An impact tool driver includes a hollow holding member having a surrounding wall defining a chamber. A solid and rigid shank of a handle is formed with a V-shaped cam hole, and extends into the chamber such that the V-shaped cam hole is registered with two diametric... | 11/09/2004 |
| 6748833 | Impact wrench An impact wrench (1) having a handle (3), an arm (7) pivotally connected to the handle (3) and of unitary construction with the handle (3), and a key (11) on the arm (7) for coupling with a keyseat of a wrench tool, s... | 06/15/2004 |
| 6679143 | Manually operated impact tool A manually operated rotatable impact tool including: a driven member for retaining and driving a fastener about an axis, the driven member further having at least one impact stop offset from the axis; a driving member rotatably connected to the driven mem... | 01/20/2004 |
| 6672183 | Quick release for use with impact wrench A power tool in the nature of an impact tool in which a quick release mechanism for retention, and selective quick release of an accessory is provided. The quick release mechanism is actuated by a release pin disposed beneath the surface of the tool so as... | 01/06/2004 |
| 6647837 | Hand tool A hand tool includes a handle, a plunger, an elastic element, a driver, a device for transforming a blow into a torque and a clutch. The handle is hollow. The plunger includes a first end and a second end. The plunger is inserted in the handle so that it ... | 11/18/2003 |
| 6345559 | Ratchet wrench having a labor saving structure A ratchet wrench having a labor saving structure includes a drive shank provided with a fixed plate defining a first circular hole and a rivet hole; a drive arm pivotally mounted on the fixed plate and defining a second circular hole and an elongated arcu... | 02/12/2002 |
| 6149356 | Portable pneumatic tool assembled with module units A portable pneumatic tool includes a housing composed of two symmetric half shells or several partially cut-away shells; an air inlet module unit, a valve actuating module unit and an operating (or functioning) module unit fluidically communicated with on... | 11/21/2000 |
| 5960685 | Torque wrench A torque wrench includes a tubular body having a head portion pivotally connected thereto and a cap movably connected thereto opposite to the head portion. The head portion has a concave end from which a tongue extends. Two first springs respectively exte... | 10/05/1999 |
| 5526722 | Impact tool for removing bolts An impact tool for removing bolts includes axially aligned impact section, torque section and shaft. The shaft is configured to extend through a socket to abut a bolt head when the socket is in operative communication with the bolt head. The shaft is addi... | 06/18/1996 |
| 5503050 | Force transferring system for a fastener A system for transferring a first linear force to a rotational force and a second linear force for rotation of a fastener includes a Y-shaped transferor capable of transferring the first linear force into the rotational force and the second linear force. ... | 04/02/1996 |
| 5107727 | Container cap remover A device for removing a cap from a container. The main components include an upper disc, a lower disc and a means for removably attaching the lower disc to the cap of the container. The upper disc has an aperture centrally located therein and a first pin ... | 04/28/1992 |
| 5095784 | Impact-spinner wrench An impact-spinner wrench including a body assembly having driver impact members along a longitudinal bore, a shaft including output shaft nubs thereon that react with the driver impact members and an end that interacts with a socket. Oppositely disposed w... | 03/17/1992 |
| 5050467 | Wrench socket retainer A detent mechanism for releasably retaining a wrench socket on the rotary drive member of an air impact wrench. A push rod is provided within the wrench body to normally support a ball detent in a locking position projecting from a side surface of a drive... | 09/24/1991 |
| 5012709 | Impact screw driver An impact screw driver includes a tubular handle, an impact rod slidable axially within the handle, and a handle cap mounted detachably on the top end of the handle. A driving rod rests on the top end of the impact rod and has an open top end and a lower ... | 05/07/1991 |
| 4920837 | Tool A tool such as a drill bit which has a generally cylindrical shank for insertion in a tool receiver or holder of a rotary percussive machine or other rotary machine, such as a drilling machine. The shank has a curved surface portion and a flat surface por... | 05/01/1990 |
| 4864902 | Socket wrench slugging device A striking tool device formed of a cylindrical metal shaft having, at one end, a square bore for mating with the drive tang of a ratchet wrench and, at the other end, a square shank for mating with a socket, and an arm member attached to said cylindrical ... | 09/12/1989 |
| 4838133 | Hydraulic pulse wrench An improved hydraulic pulse wrench provided with a hydraulic pulse generator has a liner, an anvil rotatably mounted in the liner and having a longitudinal slit, and two blades loosely mounted in the longitudinal slit. The liner has an elliptic hole. The ... | 06/13/1989 |