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| Number | Title | Issue Date |
| 7370559 | Pneumatically operated screw driver A pneumatically operated screw driver ensuring a complete return of a piston to its top dead center. The screw driver has a compressed air return chamber for returning the piston to its top dead center by applying a compressed air in the return chamber to the piston... | 05/13/2008 |
| 7234376 | Holding device for a fastening element A holding device for fastening elements which is securable to screw-driving power tool and includes at least two clamping members (20) which abut a stem (74) of the fastening element in a release position of the clamping members and which are displacea... | 06/26/2007 |
| 7226457 | Epidermal sampling apparatus and method Apparatus for abrading a small sample of epidermis for bio-analytical processing and method of using same. The apparatus removes small samples of epidermal tissue with efficiency, minimal discomfort, and no excess tissue removal. The apparatus and method may be prov... | 06/05/2007 |
| 6494120 | Bolt and nut disassembling apparatus A apparatus for disassembling a threaded bolt and nut assembly wherein the bolt is initially extended through an opening provided on a structure and being secured thereto with the nut axially mounted on a threaded rod of the bolt. The apparatus comprises ... | 12/17/2002 |
| 6247384 | Fastening device In a fastening device, to an impact wrench body 2 of an impact wrench 1 a jig holder 5 is detachably fitted. To this jig holder 5 a socket integrated type whirl-stop jig 6 is detachably fitted. The socket integrated type whirl-stop jig 6 is constituted by... | 06/19/2001 |
| 6178853 | Actuating device for an electrical power wrench An actuating device for an electrical power wrench includes a base member connected to a motor and an output shaft is rotatably connected to the base member. A pin biased by a spring movably extends through the base member. A ball biased by a spring is re... | 01/30/2001 |
| 5351582 | Pipe turning tool A tool for turning an elongate pipe is disclosed. The tool comprises a base and a drive wheel mounted for rotation on the base. The drive wheel has a cylindrical outer surface may include a plurality of projections extending radially outward from the oute... | 10/04/1994 |
| 5024565 | Hand tool A hand tool can remove burrs from an aperture in a workpiece. The tool has a hollow handle and a shaft rotatably mounted in the handle to reciprocate axially therein. The tool has a thruster for urging the shaft to extend axially. A rider is mounted in th... | 06/18/1991 |
| 4846027 | Screwdriver A screwdriver comprising a handle with a central toothed recess formed thereon and a blind hole concentrically formed thereunder and having two retaining projections projecting therefrom, a speed change gear train disposed between the retaining projection... | 07/11/1989 |
| 4320674 | Screw fastening apparatus Screw-holding device for receiving a screw are supported from three directions around the device and incline, whenever necessary. The screw-holding devices move in parallel at times. There are also provided engaging devices that are combined with the scre... | 03/23/1982 |
| 4287498 | Tuning arrangement for electrical components An arrangement is provided for mechanically connecting threaded tuning elements of electrical components to rotators driven by automated apparatus. The arrangement includes tuning tools which provide positive rotation to the tuning elements but which perm... | 09/01/1981 |
