| Patents for B25B 23 - Details of, or accessories for, spanners, wrenches, screwdrivers (20,046) |
|---|
| 01/26/1994 | EP0579722A1 Axially compact torque transducer. |
| 01/26/1994 | CN2154150Y Power screwdriver |
| 01/18/1994 | US5279188 Fastener holding apparatus |
| 01/11/1994 | US5278775 Method of tightening threaded fasteners |
| 01/11/1994 | US5277527 Electric drill |
| 01/11/1994 | US5277261 Tightening tool |
| 01/11/1994 | US5277088 Magnetic keeper accessory for wrench sockets |
| 01/11/1994 | US5277086 Wrench tool |
| 01/11/1994 | US5277084 Stud driver and remover for large diameter studs |
| 01/04/1994 | CA1325739C Locking socket wrench drive device |
| 12/29/1993 | CN2150977Y Torque moment controller for fastener fixer |
| 12/29/1993 | CN2150976Y Torque moment adjustable spanner for railway line |
| 12/28/1993 | US5272944 Anti cross thread device |
| 12/21/1993 | US5271471 Power driven screwdriver |
| 12/15/1993 | EP0573894A1 Device for feeding fasteners, especially screws, in a fastener applicator |
| 12/12/1993 | CA2097859A1 Feeding device for an inserting tool for supplying fasteners, particularly screws |
| 12/09/1993 | DE4218816A1 Hydro pulse screwing gun with drive motor esp compressed air motor - has hydraulic pressure mechanism provided with cylinder connected rotation proof with drive shaft of motor and driven shaft rotatable relative to cylinder |
| 12/01/1993 | CN2147937Y Shadowless illumination screwdriver |
| 11/25/1993 | WO1993023208A1 Hand tool for applying a ferrule to a safety cable |
| 11/25/1993 | DE4216920A1 Safety and protection cap for screwdriver - is placed on stem of screwdriver and slides down over head of screw |
| 11/24/1993 | EP0570902A1 Power driven screwdriver |
| 11/23/1993 | US5263390 Multi-fastener assembly tool |
| 11/23/1993 | US5263389 Torque rated floating marine propeller wrench |
| 11/23/1993 | CA1324506C Torque wrench with measurements independent of hand-hold position |
| 11/18/1993 | EP0570040A1 Back-side taper wedging drive system |
| 11/11/1993 | WO1993022640A1 A system for measuring the torque applied to a threaded connection between sections of oilfield pipe |
| 11/11/1993 | WO1993022568A1 Method of and device for mechanical tensioning of bolts, studs and the like |
| 11/09/1993 | US5259278 Magnetic socket retainer |
| 11/03/1993 | CN2145094Y Dynamometer wrench with digital display |
| 11/02/1993 | US5257996 Surgical pin passer |
| 11/02/1993 | US5257557 Driven tool locking mechanism |
| 11/02/1993 | US5257556 Torque application technique and apparatus |
| 11/02/1993 | CA1323768C Constant velocity universal joint and apparatus embodying the same |
| 10/27/1993 | EP0567240A1 Fastener delivery tube |
| 10/27/1993 | CN2144563Y Screw-driver bit with lighting device |
| 10/27/1993 | CN1077675A Multifunctional combined screwdriver |
| 10/26/1993 | US5257207 Method for monitoring gasket compression during fastener tensioning |
| 10/26/1993 | US5256014 Nut threaded fastener for applying a predetermined preload |
| 10/26/1993 | US5255578 Wrench having a positioning device |
| 10/26/1993 | CA2061890C Automatic stud driving tool having collarless retention mechanism for driven head |
| 10/26/1993 | CA1323513C Automatic stud driver having thread relief for high torque applications |
| 10/21/1993 | DE4310624A1 Preventing coasting of powered screwdriver spindle - using backward axial movement of spindle to engage main drive clutch and simultaneously to disengage spindle locking clutch |
| 10/20/1993 | EP0565919A1 Socket for a power driven screwdriver |
| 10/19/1993 | US5253556 Rod rotating tool |
| 10/14/1993 | WO1993019890A1 Holder for fasteners |
| 10/14/1993 | DE4211276A1 Haltevorrichtung für Fügeteile Holding device for joining parts |
| 10/13/1993 | CN2143544Y New screw driver |
| 10/13/1993 | CN1077155A Nut wrench with bolt clamping structure |
| 10/12/1993 | US5251515 Break-out device for studs |
| 10/06/1993 | CN1077008A Mechanisom for change of movement and rotating tool |
| 10/05/1993 | US5249489 Nut ejecting socket insert |
| 10/05/1993 | US5249487 Open-end ratchet wrench |
| 09/30/1993 | DE4236524C1 Retaining-force adjustment tool for vehicle bonnet closure catch - uses pivot lever providing indicated force used to adjust height of catch for controlling retaining force |
| 09/30/1993 | DE4210273A1 Power driver, for nut running, with torque limiting function - uses comparison of motor load with preset reference as input to phase gate control circuit of motor |
| 09/30/1993 | DE4210201A1 Compressed air screwdriver tool - has drive motor arranged in housing and connected to compressed air source across air line connected to handle for driving shaft with screwing tool bit and measurement value pick-up at driven shaft |
| 09/30/1993 | DE4207605C1 Pneumatic screwdriver with blade coupling inside rotary cylinder - has front cylinder-section movable in relation to rear containing coupling to allow rearwards extraction of released blade |
| 09/29/1993 | EP0563005A1 Driven tool lock mechanism |
| 09/29/1993 | CN2142774Y Screwdriver with grabhook |
| 09/28/1993 | US5248058 Parts feeder |
| 09/27/1993 | CA2089688A1 Driven tool lock mechanism |
| 09/23/1993 | DE4200364A1 Screw connection tightening up system for securing implantable false tooth in jaw bone - uses exchangeable instrument bit operated by rotation part with variable torque |
| 09/22/1993 | CN2142386Y Multipurpose tool set |
| 09/22/1993 | CN2142385Y Screw clip for screwdriver |
| 09/21/1993 | US5245747 Device for tightening threaded joints |
| 09/21/1993 | CA2015056C Gripping screw drive bit |
| 09/16/1993 | WO1993017834A1 Chuck for tool inserts, especially screwdrivers |
| 09/16/1993 | DE4307744A1 Battery powered screw driver - has main and auxiliary switches switched on and off according to axial movement of actuator rod. |
| 09/16/1993 | DE4212024A1 Open-end, or ring spanner for multi-faceted nuts - has superimposed sleeve with open jaw to fit over existing spanner head and partly covering spanner jaw |
| 09/16/1993 | CA2131179A1 A clamping chuck for tool inserts, in particular for screw drivers |
| 09/15/1993 | EP0559937A1 Method of tightening a threaded fastener |
| 09/14/1993 | US5245265 System to control a motor for the assembly or dis-assembly of two members |
| 09/14/1993 | US5244284 Antifriction roller means for plungers |
| 09/01/1993 | CN2141350Y Electricity testing screwdriver |
| 08/31/1993 | US5239900 Power screwdriver automatic loading apparatus |
| 08/31/1993 | US5239875 Torque limiting tool |
| 08/26/1993 | DE4205525A1 Screwdriver with screw holding mechanism - slides in housing tube with radial holes holding spring-loaded balls which open as screw head is pushed into tube mouth and retain screw |
| 08/25/1993 | CN2140813Y 风动开口扳手 Wind-driven open-end wrench |
| 08/24/1993 | US5237893 Driver with fastener retention means |
| 08/24/1993 | CA1321445C Barrel assembly for installation tool and method of installation |
| 08/19/1993 | DE4302880A1 Screwing device with adaptable spindle - has revolving magazine with adaptors for screw bolts or tools and is power driven |
| 08/18/1993 | CN2140290Y 螺丝刀 Screwdriver |
| 08/17/1993 | US5237248 Control circuit having double-pole double-throw switching device for electrically powered tool |
| 08/17/1993 | US5236053 Turning attachment |
| 08/17/1993 | US5236052 Method and an apparatus for controlling stress in a member and a fastener having stress indicating means |
| 08/17/1993 | US5235878 Stud gripper socket |
| 08/10/1993 | US5233892 Quick release mechanism for tools such as socket wrenches |
| 08/10/1993 | US5233891 Detent means |
| 08/10/1993 | US5233742 Method and apparatus for controlling tubular connection make-up |
| 08/03/1993 | US5231902 Pneumatically operated screw driver |
| 08/03/1993 | US5231900 Automatic screw driving mechanism |
| 07/28/1993 | EP0552990A1 Tightening tool |
| 07/28/1993 | CN1074638A Method and apparatus for transport and securing of threaded parts |
| 07/27/1993 | US5230263 Wrench for use on threaded parts that are not easily accessible |
| 07/27/1993 | US5230261 Electric power tool |
| 07/27/1993 | US5230141 Device for feeding apertured parts |
| 07/27/1993 | US5230129 Safety cable tool |
| 07/22/1993 | DE4301582A1 Bolt driver - has three clamping rollers at 120 deg which ride on six lobed inner cam surface of socket to grip bolt head |
| 07/22/1993 | DE4201143A1 Screw guide for powered screwdriver - has geometry of lever holding screw on guide block chosen so that friction of screw applies moment forcing lever hard onto screw |
| 07/22/1993 | DE4200928A1 High torque screw fastening for short thread length - has screw heated by microwaves during fitting to heat shrink into grip position |
| 07/21/1993 | CN2138548Y Folding portable dual purpose screw driver |