| Patents for B25B 21 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose (7,850) |
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| 03/31/2004 | CN1143757C Two position screw driver |
| 03/31/2004 | CN1143756C Automatic shaft locking mechanism |
| 03/30/2004 | US6712157 Portable power tool with rotation motor and grease lubricated angle drive |
| 03/30/2004 | US6711809 Pneumatic and manual installation tools for installing U-nut fasteners |
| 03/27/2004 | CA2443013A1 Hand held spin pull tool for installing threaded inserts and method for using same |
| 03/25/2004 | US20040055769 Power tool having automatically selective driving direction |
| 03/25/2004 | US20040055432 Screwdriver |
| 03/24/2004 | EP1400639A2 Roofing machine |
| 03/24/2004 | EP1400313A1 Hydraulically operated ratchet spanner with a double-acting hydraulic cylinder/piston drive |
| 03/24/2004 | EP1399300A1 Battery-powered screwdriver with integral bit holder |
| 03/24/2004 | EP1399296A2 Power torque tool |
| 03/23/2004 | US6708779 Reverse apparatus for air impact wrench |
| 03/23/2004 | US6708778 Hydraulic unit with increased torque |
| 03/18/2004 | US20040050566 Motor-driven rotary tool with internal heating temperature detecting function |
| 03/18/2004 | DE202004000566U1 Pneumatischer Schraubenschlüssel Pneumatic Wrench |
| 03/18/2004 | DE10318563A1 Electrically driven screw driver, comprising swivel mounted front part working with bevel gear unit and bearing shaft positioned in right angle to drive shaft |
| 03/17/2004 | CN1481975A Machine for tighten multi-rod screw |
| 03/17/2004 | CN1481974A Electrodynamic wind artillery and starting motor type electric tool |
| 03/11/2004 | WO2003009969A3 Impact tool battery pack with acoustically-triggered timed impact shutoff |
| 03/11/2004 | US20040045414 Valve operator |
| 03/11/2004 | US20040045413 Device for screwing in fastening elements |
| 03/11/2004 | DE10327588A1 Schraubendreher Screwdriver |
| 03/09/2004 | US6702090 Power tool and spindle lock system |
| 03/09/2004 | US6701806 Machine for clamping material to be fastened and automatically installing screws |
| 03/04/2004 | WO2004018155A1 Torque transmission mechanism |
| 03/04/2004 | US20040040727 Tranducerized torque wrench |
| 03/04/2004 | CA2496471A1 Torque transmission mechanism |
| 03/03/2004 | CN1479666A Impact tool with detachable drive end |
| 03/03/2004 | CN1140382C Modified cage member for impact mechanism |
| 02/25/2004 | CN2604279Y Screw setting device and screw setting unit thereof |
| 02/24/2004 | US6696814 Microprocessor for controlling the speed and frequency of a motor shaft in a power tool |
| 02/24/2004 | US6695072 Hand-held pneumatic rotary drive device having an adjustable air exhaust |
| 02/24/2004 | US6695070 Magnetic impact device and method for magnetically generating impact motion |
| 02/19/2004 | WO2004014613A1 Motorized light bulb changer |
| 02/19/2004 | DE19961209B4 Sickensuchgerät Sick detector |
| 02/19/2004 | DE10236586A1 Plug-in coupling in two parts, reaction arm, housing, circular axial groove in first coupling part into which fits lug on second coupling part, and locking element |
| 02/19/2004 | DE10236585A1 Hydraulically driven screw-driver has ratchet lever, cog wheel with cogging, block in form of detent pawl, with two blocking teeth |
| 02/12/2004 | WO2004012911A1 Modular control apparatus for a power impact tool |
| 02/12/2004 | WO2004012910A2 Magnetic impact device and method for magnetically generating impact motion |
| 02/12/2004 | US20040027010 Motor-driven tool |
| 02/12/2004 | US20040026096 Modular control apparatus for a power impact tool |
| 02/12/2004 | CA2492443A1 Modular control apparatus for a power impact tool |
| 02/11/2004 | CN2602879Y Bidirectional impact type electric-pneumatic wrench |
| 02/11/2004 | CN2602878Y Hand-electric driver wrench |
| 02/10/2004 | US6688611 Removable chuck |
| 02/10/2004 | CA2238268C Power drill housing extension coupling |
| 02/10/2004 | CA2097616C Tool construction |
| 02/05/2004 | US20040020667 Magnetic impact device and method for magnetically generating impact motion |
| 02/05/2004 | DE10234078A1 Electric hand tool for turning threaded components, e.g. nuts and bolts, has a drive and endless belt which partially wrap the head or body of the item by pivoting arms |
| 01/28/2004 | EP1272737B1 Air motor |
| 01/28/2004 | CN1470364A Reformikng set of modular control device for power punching tool |
| 01/22/2004 | WO2004007858A2 Method and apparatus for fastening together structural components |
| 01/21/2004 | EP1382419A2 Retrofit Kit for a Modular Control Apparatus for a Power Impact Tool |
| 01/20/2004 | US6679406 Power tool |
| 01/20/2004 | US6679141 Releasable coupling and tool therefor |
| 01/15/2004 | US20040007370 Retrofit kit for a modular control apparatus for a power impact tool |
| 01/15/2004 | US20040006861 Method and apparatus for fastening together structural components |
| 01/15/2004 | US20040006860 Method and apparatus for attaching structural components with fasteners |
| 01/14/2004 | CN2598704Y Improved structure of electric wrench |
| 01/13/2004 | US6676557 First stage clutch |
| 01/08/2004 | US20040003933 Side handles on drill/drivers |
| 01/08/2004 | DE20316795U1 Gear arrangement for driven impemet incorporates actuatrwi sleeve,,protuberances,vibration element, positioning plates and wheel, gear shaft, outer ring, rachet nd ridges |
| 01/07/2004 | EP1377755A2 First stage clutch |
| 01/07/2004 | CN2597747Y Knocking-type electric wrench clutch |
| 01/07/2004 | CN2597734Y Split-type rotary drive |
| 01/07/2004 | CN2597153Y Hydraulic setting device for heat exchanger set |
| 01/06/2004 | CA2142590C Powered reversing ratchet driver |
| 01/02/2004 | EP1375080A2 Machine-tool having a locking mechanism to lock it's drive shaft |
| 12/31/2003 | CN1132724C Screwing tool for drilling and fastener |
| 12/30/2003 | US6668690 Screwdriver |
| 12/24/2003 | DE29924592U1 Two-position screwdriver housing for hand held power tools comprises first housing with motor and drive transmission that is electrically coupled via switch |
| 12/24/2003 | DE29924591U1 Two-position screwdriver housing for hand held power tools comprises first housing with motor and drive transmission that is electrically coupled via switch |
| 12/24/2003 | CN2593967Y Floating dowel arm hydraulic spanner |
| 12/18/2003 | WO2003103901A2 Chuck for receiving tools operated by rotating around the axis thereof |
| 12/18/2003 | WO2003000465A3 Power torque tool |
| 12/18/2003 | US20030230423 Pneumatic rotary tool |
| 12/16/2003 | CA2097161C Power regulator for a pressure fluid motor |
| 12/11/2003 | WO2003011533B1 Battery powered screwdriver and screw starting device |
| 12/10/2003 | EP1369206A1 Electric rotational tool driving switch system |
| 12/09/2003 | US6661148 Motor-driven tool |
| 12/03/2003 | EP1365890A1 Housing with functional overmold |
| 12/02/2003 | US6655473 Hand tool with an adjustable rotational speed and torsion force |
| 12/02/2003 | US6655471 Impact tool control method and apparatus and impact tool using the same |
| 12/02/2003 | US6655470 Speed changing mechanism for tools |
| 11/27/2003 | WO2003097306A1 Power tool with additional function |
| 11/27/2003 | WO2003097304A1 Method for controlling a hydraulic piston/cylinder unit |
| 11/27/2003 | US20030217853 Portable power tool with rotation motor and grease lubricated angle drive |
| 11/27/2003 | DE10227983C1 Hand machining tool with blocking device for blocking rotation of its drive shaft during attachment of tool to drive shaft |
| 11/26/2003 | EP1364138A1 Multispeed power tool transmission |
| 11/26/2003 | CN2588123Y Knocking type electric spanner clutch |
| 11/26/2003 | CN1457962A Microcomputerized torque regulating electric spanners |
| 11/26/2003 | CN1128696C Moto-driven hand held screw driver |
| 11/26/2003 | CN1128691C Screw automatic fastener |
| 11/19/2003 | CN1456633A Corrosion inhibiting heat exchange fluid for magnetic refrigerating under ambient temperature |
| 11/18/2003 | US6648080 Impact device for a pneumatic tool |
| 11/18/2003 | US6647830 Advanced tool systems |
| 11/13/2003 | WO2003092960A1 Pneumatic power nut runner with automatic shut-off |
| 11/13/2003 | DE20210453U1 Impulse unit, for power hand tool, has a rotor with radial vanes forming two hydraulic chambers linked by a pressure controlled bypass |
| 11/12/2003 | CN1127399C Driving tool |
| 11/06/2003 | WO2003029601A3 Percussive rotational impact hammer |