| Patents for B25B 21 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose (7,850) |
|---|
| 01/03/1995 | US5377769 Impact wrench having an improved air regulator |
| 12/28/1994 | CN2186138Y Spindle locking device of electric screwdriver |
| 12/20/1994 | US5373759 Method of applying torque to a workpiece |
| 12/13/1994 | US5372206 Tightening tool |
| 12/13/1994 | CA2044608C Motion converting mechanism and rotary tool |
| 12/07/1994 | EP0627282A1 Method of tightening threaded member |
| 12/07/1994 | EP0626898A1 Fluid operated tool |
| 12/07/1994 | EP0479988B1 Power wrench |
| 12/07/1994 | EP0478760B1 Torque wrench |
| 12/06/1994 | US5369867 Method for engaging threaded connectors |
| 12/05/1994 | CA2125127A1 Tightening device |
| 12/05/1994 | CA2125082A1 Method of tightening threaded member |
| 11/24/1994 | DE4317002A1 Optional drive of an electric hand drill using a battery-powered d.c. motor or a mains-powered electric motor |
| 11/24/1994 | DE4316648A1 Driving apparatus with driving bit for a screw-fixing machine |
| 11/23/1994 | EP0625408A1 Impulse wrench |
| 11/23/1994 | CN1095327A Switch for electric tools |
| 11/09/1994 | EP0623425A1 Powered wrench |
| 11/09/1994 | CN2182033Y Electric spanner |
| 11/08/1994 | US5361853 Power tool |
| 11/01/1994 | US5360073 Battery type screw driver |
| 10/27/1994 | WO1994023904A1 Screwdriver with replaceable bit assembly |
| 10/26/1994 | EP0621109A1 Bolt tightening |
| 10/26/1994 | EP0621108A1 Roofing washer-dispensing and fastener-driving machine |
| 10/25/1994 | US5357828 Fluid operated tool |
| 10/25/1994 | CA2051853C Electric wrench |
| 10/19/1994 | CN2179811Y Electric bolt wrench |
| 10/18/1994 | US5355751 Motor-driven wrench |
| 10/11/1994 | US5354246 Mechanism in a powered hand-held rotary driver for counteracting reaction torque |
| 10/05/1994 | CN1026074C Electric impact wrench |
| 10/04/1994 | US5351586 Screwdriver replacement bit assembly |
| 10/04/1994 | US5351582 Pipe turning tool |
| 09/29/1994 | WO1994021422A1 Tool and method for turning threaded parts |
| 09/27/1994 | US5350026 Power-driven electrical hand tool |
| 09/20/1994 | US5347707 Roofing washer-dispensing and fastener-driving machine |
| 09/15/1994 | WO1994020266A1 Fluid operated tool |
| 09/13/1994 | US5346024 Tool construction |
| 09/13/1994 | US5346021 Fastening tool having improved pressure regulator device |
| 09/08/1994 | DE4306524A1 Device for pressure-dependent speed regulation in drilling and screwing machines |
| 09/07/1994 | EP0613758A1 Power tool and mechanism therefor |
| 09/06/1994 | US5344267 Self-drilling blind rivet |
| 09/06/1994 | US5343961 Power transmission mechanism of power-driven rotary tools |
| 09/06/1994 | CA2030473C Wrench |
| 08/31/1994 | EP0612589A1 Control device for electric tools |
| 08/31/1994 | EP0612588A1 Control device for electric tools |
| 08/30/1994 | US5341560 Method of elongating and relaxing a stud |
| 08/23/1994 | US5339710 Offset line socket |
| 08/17/1994 | CN2174300Y Clutch for electric screwdriver |
| 08/04/1994 | WO1994016863A1 Socket for turning a threaded connector by power tool |
| 08/04/1994 | DE4301610A1 Schlagschrauber Impact Wrenches |
| 08/03/1994 | EP0608916A2 Universal electric motor |
| 07/27/1994 | EP0608083A1 Power driven tool, in particular an electric tool |
| 07/20/1994 | EP0606819A1 Tool holder with ejection slot |
| 07/20/1994 | CN2172185Y Driving spanner |
| 07/19/1994 | US5330206 Adapter for power tools |
| 07/19/1994 | US5329833 Bimodal hydraulic reciprocating torque actuator |
| 07/19/1994 | US5329802 Automatic slide hammer attachment |
| 07/15/1994 | CA2108499A1 Tool holder with ejection slot |
| 07/15/1994 | CA2087321A1 Driving mechanism of a power wrench |
| 07/12/1994 | US5327801 Duct strap tool |
| 07/07/1994 | WO1994014578A1 Fluid operated tool |
| 07/07/1994 | WO1994014574A1 Power driven ratchet wrench |
| 06/23/1994 | DE4243069A1 Pulse tool, esp. pulse screwdriver |
| 06/08/1994 | EP0600285A1 Device for screwing on fastening elements |
| 06/08/1994 | EP0600283A1 Device for screwing on fastening elements |
| 06/08/1994 | EP0462257B1 Die chuck for multiple-cornered ends of tool spindles |
| 06/07/1994 | US5318397 Mechanical tensioner |
| 05/25/1994 | EP0598334A1 Screwing device |
| 05/25/1994 | CN2165968Y Omnibearing, multi-function disassembly & assembly machine for screw nut |
| 05/24/1994 | US5315501 Power tool compensator for torque overshoot |
| 05/24/1994 | US5313680 For use with a power tool |
| 05/19/1994 | DE4338243A1 Air turbine dental drill - has air admission and exhaust channels lying on turbine centreline and tapered air admission chamber |
| 05/19/1994 | DE4238182A1 Drill sheath reception shaft for electric hand drill or screwdriver - has adaptor with drill sheath reception device at one end and drill bit locating opening at opposite end |
| 05/17/1994 | US5311797 Pressure-operated power wrench |
| 05/17/1994 | US5311796 Hydraulic tool |
| 05/15/1994 | CA2102930A1 Screw gun drive |
| 05/11/1994 | DE4238757A1 Positioner for railway track superstructure fastening - has spring-loaded part on holder and clamped via slider during lowering of bolt spindle housing |
| 05/10/1994 | US5309799 Transparent-sleeve screw holding and driving tool |
| 05/10/1994 | US5309714 Ratchet tool with exhaust chamber manifold with sound dampening properties |
| 04/27/1994 | EP0593742A1 Method of and device for mechanical tensioning of bolts, studs and the like |
| 04/27/1994 | CN2163032Y Torque regulating energy-accumulating pneumatic spanner |
| 04/26/1994 | US5305670 Adjustable wrench |
| 04/26/1994 | US5305666 Installation tool system for Hi-Lok-type fasteners |
| 04/13/1994 | EP0591574A1 Power driven electric handtool |
| 04/12/1994 | US5301574 Hydraulic wrench |
| 04/07/1994 | DE4333599A1 Quiet powered screwdriver - has, between final drive gear and spindle dog clutch, three balls in recesses allowing limited rotation of intermediate clutch plate relative to gear and facilitating smooth engagement |
| 04/06/1994 | CN2160507Y Electric screwdriver |
| 03/31/1994 | DE4240155C1 Hand held power drive screwdriver - has piston sliding spindle axially into position with screw-shank protruding from mouth |
| 03/22/1994 | US5296768 Revolutions per minute regulation device for a hand-held electric tool and method of its manufacture |
| 03/22/1994 | CA1327903C Collet lock for power tool |
| 03/16/1994 | EP0586811A1 Monitoring and control of fluid driven tools |
| 03/15/1994 | US5293747 Power regulator for a pressure fluid motor |
| 03/03/1994 | WO1994004320A1 Powered reversing ratchet driver |
| 03/03/1994 | DE4328599A1 Rotary impact-type powered screw or nut driver - has clutch between motor and hammer drive spindle which can be set to open at desired torque limit depending on size of screw or nut |
| 03/02/1994 | CN2157856Y Improved power-driven (air-actuated) braking device of screwdriver |
| 03/01/1994 | US5289886 Automatic screw fastening machine |
| 03/01/1994 | US5289885 Tightening tool |
| 02/11/1994 | CA2101984A1 Monitoring and control of fluid driven tools |
| 02/09/1994 | CN2155293Y Electric tool for setting or loosening screws |
| 02/08/1994 | US5284071 Unfolding bolt tightening spanner |
| 02/03/1994 | WO1994002290A1 Ratchet spanner |