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| Application No. | Application Title | Issue Date |
| 20100059240 | METHOD FOR TIGHTENING A SCREW CONNECTION AND SCREW DRIVING TOOL Disclosed is a method for screwing in and tightening a screw connection (1) to a predetermined tightened level (2), especially a predetermined torque level (2) or a predetermined pretension level, with the aid of a hand-held screwing tool (3)... | 03/11/2010 |
| 20090241744 | TIGHTENING TOOL AND TIGHTENING TOOL MANAGEMENT SYSTEM A tightening tool for tightening a fastener is disclosed which comprises a motor and a main shaft that engages with the fastener. A clutch is disposed between the motor and the main shaft so that the clutch rotates the main shaft by transmitting torque from the motor to... | 10/01/2009 |
| 20090173194 | IMPACT WRENCH STRUCTURE A novel impact wrench is provided herein, which allows a user to set a target torque level, show the torque level in a display, and automatically stops the motor when the target torque level is reached. The impact wrench is constructed such that its electrical current w... | 07/09/2009 |
| 20090165609 | DIGITAL POWER TORQUE WRENCH OF INDIRECT TRANSMISSION The present invention relates to a digital power torque wrench of indirect transmission, which is composed of an eccentric driving module, a sensing module, a ratchet module and a control module. The eccentric driving module is used for transmitting power to the sensing... | 07/02/2009 |
| 20090014192 | Control method and control unit for impact type screw fastening device An object is to improve accuracy of tightening torque and to shorten time necessary for fastening a screw in an impact type screw fastening device that uses an electric motor as a rotation driving source. A control method for the impact type screw fastening device that ... | 01/15/2009 |
| 20080136270 | Power Wrench The present invention relates to a power-wrench comprising an electrical converter-fed motor having a permanent-magnetized rotor and a stator provided with winding, the motor winding (1) comprising at least two winding parts, which independently of each other are... | 06/12/2008 |
| 20080060487 | Driver with External Torque Value Indicator Integrated with Spindle Lock and Related Method A power tool generally includes a housing and a motor assembly connected to a transmission assembly. The motor assembly and the transmission assembly are secured against rotation in the housing. A plurality of protrusions extends from a component of the transmission ass... | 03/13/2008 |
| 20070125201 | Disposable Battery Powered Screw Driver, Locking Mechanism, and Accessories In accordance with one embodiment of the present invention, a driver may include an electric motor coupled to a bit interface. The bit interface may include a generally cylindrical body having first and second hollow portions. The first hollow portion may be on one end ... | 06/07/2007 |
| 20050279198 | Bolt or nut tightening device having reaction force receiving member A bolt or nut tightening device comprising a tightening socket (4) and a reaction force receiving member (5), the tightening socket (4) being rotatingly drivable upon a speed reduction by a motor (2) and a reduction mechanism (3) which... | 12/22/2005 |
| 20050279197 | Apparatus for controlling a fastener driving tool, with user-adjustable torque limiting control An improved hand-held fastener driving tool is provided with an adjustable torque limiting control. The tool is portable, and is electrically powered using either a battery pack or a power cord as a power source. The tool drives collated fasteners (e.g., screws) into so... | 12/22/2005 |
| 20050092143 | Position sensing electronic torque wrench The present invention provides a device for confirming that threaded fasteners have been tightened to the level of torque required by the assembly specification. An apparatus and method is provided for validating or verifying a fastener connection. A wrench or other tor... | 05/05/2005 |
