| Patents for B25B 23 - Details of, or accessories for, spanners, wrenches, screwdrivers (20,046) |
|---|
| 04/09/1991 | US5005448 Speed wrench and hand grip combination |
| 04/02/1991 | US5004054 Electric drill with speed and torque control |
| 04/02/1991 | US5003849 Alignment sleeve for hand tool having a universal joint |
| 04/02/1991 | US5003847 Hydraulic power wrench |
| 03/28/1991 | DE3931062A1 Storage equipment for many workpieces - has components forming mountings one above the other and adjustable horizontally |
| 03/28/1991 | DE3931061A1 Multiple workpiece storage equipment - has horizontally-adjustable components one above the other together forming mounting positions |
| 03/28/1991 | DE3931001A1 Portable automatic screwdriver tool - has telescopic tube between compressed-air screw-feed hose and head |
| 03/28/1991 | DE3931000A1 Portable automatic screw-driving tool - has compressed-air feed hose turning on lengthwise axis at forward end |
| 03/28/1991 | DE3930999A1 Screwdriver feed mechanism on robot - incorporates magazine for screws with mechanical conveyor to head |
| 03/27/1991 | EP0419436A2 Method and device for tightening threaded joints |
| 03/27/1991 | EP0419435A2 Device for tightening threaded joints |
| 03/27/1991 | EP0229801B1 New dynamometric spanner of the deforming flexion elements type |
| 03/27/1991 | CN2073799U Torgue wrench |
| 03/27/1991 | CN2073798U Mounting clip sleeve for screw |
| 03/27/1991 | CN2073797U Built-in type interchangeable head multi-purpose screw driver |
| 03/27/1991 | CN2073796U Revolving wheel type multi-purpose screw driver |
| 03/27/1991 | CN2073793U Adjustable wrench |
| 03/26/1991 | US5003297 Method of detecting failure to tighten screws against works and device therefor |
| 03/26/1991 | CA1281960C Apparatus and method for assembly and disassembly of interchangeable surgical acoustic members |
| 03/21/1991 | DE3930105A1 Precision suspension device for auger - consists of fixed plate with centering ring incorporating sealer rings and torque stabiliser |
| 03/20/1991 | CN1049997A Combined screw driver |
| 03/19/1991 | US5000627 Apparatus for adjusting radial displacement from rotatable shaft |
| 03/14/1991 | DE4000650A1 Spanner for screws or nuts - has telescopic rod to connect head and drive |
| 03/14/1991 | DE4000649A1 Spanner for screws and nuts - has rotary motor drive and non-turntable connection to spanner head housing |
| 03/12/1991 | US4998452 For use with a power drill |
| 03/06/1991 | CN2072468U Moving drive rod of box spanner |
| 03/06/1991 | CN2072467U Alternating type ratchet wheel mechanism for ratchet spanner |
| 03/01/1991 | WO1991003655A1 Universal joint with rotating holder sleeve |
| 03/01/1991 | CA2065428A1 Universal joint with rotating holder sleeve |
| 02/27/1991 | EP0414277A1 Automatic screw driver and a method for controlling the same |
| 02/27/1991 | CN2072005U Multifunctional screwdriver |
| 02/26/1991 | US4995145 Reduction of relaxation induced tension scatter in fasteners |
| 02/20/1991 | CN2071569U Combined screw-driver with tweezers function |
| 02/20/1991 | CN2071568U Combined folding internal hexagon spanner |
| 02/19/1991 | US4993289 Drive element with drive bore having compound entry surface |
| 02/13/1991 | CN2071115U Screwdriver with claw |
| 02/13/1991 | CN2071114U 螺丝自动供给装置 Automatic screw feeding device |
| 02/13/1991 | CN2071113U Slip-proof screwdriver |
| 02/13/1991 | CN2071112U Hydraulic torque moment setting wrench |
| 02/13/1991 | CN2071111U Easy alternative screwdriver |
| 02/12/1991 | US4991663 Fluid operated power tool |
| 02/12/1991 | US4991473 Rotating driver with automatic speed switching and torque limiting controls |
| 02/07/1991 | WO1991001198A1 Method for monitoring gasket compression during fastener tensioning |
| 02/06/1991 | EP0411483A1 Screwdriver |
| 02/06/1991 | EP0411470A1 Tool handle |
| 02/06/1991 | EP0411109A1 Screw and driver |
| 02/06/1991 | CN2070666U Joint for screwdrivers |
| 02/05/1991 | US4989478 Turning apparatus |
| 02/05/1991 | CA1279778C Screw holder |
| 01/30/1991 | CN2070228U Driver for screw clamp claw |
| 01/29/1991 | USRE33526 Power tongs and control system |
| 01/29/1991 | US4987806 Electronic control circuitry for a nutrunner |
| 01/29/1991 | US4987802 Power wrench |
| 01/29/1991 | US4987669 Method of tightening screw |
| 01/24/1991 | WO1991000989A1 Device for measuring torque |
| 01/22/1991 | US4986369 Torque adjusting mechanism for power driven rotary tools |
| 01/17/1991 | DE4022763A1 Mechanical screwdriver tool - has in built torque limiter operating on ratchet principle |
| 01/17/1991 | DE3922860A1 Messeinrichtung zur bestimmung des drehmoments Measuring means for determining the torque |
| 01/16/1991 | CN2069340U Multi-specification ring-inner-hexagon combination tool |
| 01/15/1991 | US4984503 Wrench |
| 01/09/1991 | EP0406521A1 Magazine for screws |
| 01/09/1991 | CN2068894U Automatic screwdriver with pneumatic press-on and feed |
| 01/08/1991 | USRE33514 Adjustable torque limiting assembly |
| 01/08/1991 | US4982632 Socket wrench set |
| 01/08/1991 | US4982628 Lug nut storage attachment for a power driven lug nut remover |
| 01/08/1991 | US4982625 Adaptor and driver for an adhesive capsule anchor |
| 01/08/1991 | US4982612 Torque wrench with measurements independent of hand-hold position |
| 01/02/1991 | EP0405705A2 Method of and device for tightening threaded connectors |
| 01/02/1991 | CN2068453U Batching moment of torque spanner |
| 01/02/1991 | CN2068452U Screwdriver with quick replaceable rod |
| 01/01/1991 | US4980959 Installation tool for helical coil inserts |
| 12/27/1990 | EP0404035A2 Powered screwdriver |
| 12/26/1990 | CN2068043U Hand, electric belt screw unit |
| 12/25/1990 | US4979408 Screw tightening device |
| 12/25/1990 | US4979354 Device for facilitating driving of a threaded screw |
| 12/23/1990 | CA2018156A1 Spring-loaded magnetic driver and method of assembly thereof |
| 12/20/1990 | DE3919648A1 Winkelschrauber Angle Driver |
| 12/19/1990 | EP0403460A1 Power wrench for tightening screw joints |
| 12/19/1990 | CN2067635U Clasp screwdriver |
| 12/18/1990 | US4977799 Clamping tool for stud bolt |
| 12/12/1990 | EP0401902A1 Tool |
| 12/12/1990 | EP0401548A1 Device for a screw fastening tool |
| 12/12/1990 | CN2067208U Reciprocating thrust type, variable bulk multi-function screwdriver |
| 12/12/1990 | CN2067207U Sound type adjustable torque spanner |
| 12/11/1990 | US4976175 Multipurpose tool |
| 12/11/1990 | US4976174 Socket wrench attachment with removable retaining means |
| 12/11/1990 | US4976159 Dual mode torque wrench |
| 12/11/1990 | US4976133 Instrument for adjusting and calibrating torque wrenches |
| 12/06/1990 | DE3917827A1 Power operated spanner with revolving ring - incorporates interchangeable lug inserts held in place by catch |
| 12/05/1990 | CN2066794U Safety convenient wrench |
| 12/05/1990 | CN1047467A Method and appratus for detecting forgetful state of screw fastening on workpieces |
| 12/04/1990 | US4974478 Device for tightening the screw on scissors |
| 12/04/1990 | US4974476 Fluid-operated wrench |
| 11/29/1990 | WO1990014197A1 Drop ceiling installing apparatus |
| 11/29/1990 | DE3916626A1 Automatic screwdriver with partially conductive screw-holder - performs DC continuity check in switching circuit completed by correct positioning of screw under tool bit |
| 11/28/1990 | EP0399637A1 Method of detecting failure to tighten screws against works and device therefor |
| 11/28/1990 | EP0399290A1 Screwing and unscrewing device and automatic screwer with adjustable torque |
| 11/28/1990 | CN2066375U Crab claw type screw driver |
| 11/28/1990 | CN2066374U Sleeve type apparatus used with screw drivers |
| 11/27/1990 | US4972741 Isolated torsional-transfer combined tong apparatus |