Patents for B25B 23 - Details of, or accessories for, spanners, wrenches, screwdrivers (20,046)
10/1989
10/11/1989CN1036162A Torque wrench
10/04/1989EP0335809A1 Electromechanical torque wrench
10/04/1989EP0335700A2 Combined locking mechanism and switch
10/03/1989US4870879 Quick-set dial type torque wrench
10/03/1989US4870750 Device for machine-fastening roofing materials to roofs
09/1989
09/28/1989DE3907567A1 Screwdriver bit
09/27/1989EP0172171B1 Feeders for headed fasteners
09/27/1989CN2044923U Turning apparatus with telescopic magic hand
09/27/1989CN2044922U Length adjustable combined screw-driver
09/26/1989US4869139 Rotating driver with automatic speed and torque switching
09/26/1989US4869136 Fastener gripping mechanism for bolt running operations
09/26/1989US4869131 Variable speed gearing in rotary electric tool
09/21/1989WO1989008536A1 Screwdriver bit
09/20/1989EP0332839A1 Automatically charged screw driver
09/20/1989EP0332722A1 Tensioning head for rodshaped anchors, especially wall anchors
09/19/1989US4867019 Screwdriving tool
09/13/1989EP0331874A1 Magazine with several expansion dowels
09/13/1989EP0331868A2 Torque spanners
09/12/1989US4865485 Socket extension with safety wedge
09/12/1989US4864903 Apparatus and method of determining torque, presenting digital torque readout and automatic cycling and termination of wrench operation
09/12/1989US4864841 Electronic torque wrench
09/08/1989WO1989008066A1 Part vibrating and arraying apparatus
09/08/1989WO1989008013A1 Tool having a built-in light source
09/06/1989EP0330870A2 Tool shaft
09/06/1989CN2043907U Torque wreneh with electronic acoustics
09/05/1989US4862776 Drain plug removing device
09/05/1989US4862774 Screw holder
08/1989
08/31/1989DE3837654A1 Arrangement of screws
08/31/1989DE3802188A1 Power driver with an electric drive motor and a switching-off device assigned to the latter
08/30/1989EP0329852A2 Powered wrench
08/30/1989EP0329648A1 Device to prevent relative displacement between two elements
08/24/1989WO1989007509A1 Self-locking mechanism for square drive tools
08/23/1989EP0328799A2 Variable torque driver tool
08/22/1989US4858939 Bit retention and release mechanism
08/22/1989US4858504 Screwdriver with insulated shaft and polygonal driving head
08/22/1989US4858312 Torque control for automatic connector assembly tool
08/22/1989US4858299 Process for making a joint with a torque-limited collar
08/17/1989DE3744176A1 Multiple tool, in particular roof-rack wrench for a motor vehicle
08/16/1989CN2042780U Nagative pressure motor scalper
08/15/1989US4856389 Device for setting fastener elements and pins
08/15/1989US4856388 Adjustable length extension
08/15/1989US4856387 Hermaphrodite wrench
08/09/1989CN2042405U Clamping sleeve of screwdriver
08/09/1989CN2042403U 螺丝刀 Screwdriver
08/03/1989DE3843925A1 Hydraulic power driver
08/03/1989DE3819316A1 Principle of multiplication and reduction of the torque of a torque lever
08/03/1989DE3811776A1 Hydraulic power screwing device
08/03/1989DE3802154A1 Mouthpiece for use in screwing-in and/or setting-in devices for connecting elements
08/02/1989EP0325728A1 Stud chuck
08/01/1989US4852196 Combination drill and screwdriver
07/1989
07/27/1989DE3838882A1 Depth-sensing device for a screwing assembly
07/27/1989DE3836179A1 Screwdriver
07/27/1989DE3804043A1 Torque measuring device
07/25/1989CA1257816A1 Portable power tool of an impulse type
07/19/1989CN2041231U Combined safety screwdriver
07/18/1989US4848197 Multiple bit handtool
07/18/1989US4848196 Quick release and automatic positive locking mechanism for socket wrenches and extension bars for socket wrenches
07/18/1989US4848194 Valve wrench
07/18/1989CA1257487A1 Box end wrench
07/12/1989CN2040838U Hydaulic spanner with function of measurement of screw pair
07/11/1989US4846285 Air wrench
07/11/1989US4846028 Fluid-operated wrench
07/11/1989US4846001 Ultrasonic load indicating member
07/11/1989US4845998 Apparatus for precision tensioning of threaded fasteners
07/06/1989DE3831860A1 Arrangement for torque-dependent control of the compressed air supply in compressed air machine tools
07/05/1989EP0323166A2 Wrench
07/05/1989EP0322875A2 Clamping element and device for anchoring clamping elements
07/05/1989EP0322490A1 A tool for removing a threaded fastener
07/05/1989CN2040428U 万向管子扳手 Universal pipe wrench
07/04/1989US4844177 Torque sensing, automatic shut-off and reset clutch for toggle controlled screwdrivers, nutsetters and the like
07/04/1989US4844176 Air tool with torque shut-off valve
06/1989
06/29/1989WO1989005713A1 Tool for and a method of tightening a threaded fastener
06/29/1989DE3818924A1 Power-driven screwing tool
06/27/1989US4842078 Screw joint tightening power tool
06/27/1989US4841832 Boltrunner
06/21/1989EP0320791A2 Finger wrench
06/21/1989EP0320723A2 Machine with variable torque adjustment
06/21/1989CN2039646U Electronic warner for torgue force spanner
06/20/1989CA1255931A1 Hand tool
06/15/1989DE3837597A1 Drehmomentuebertragungseinrichtung, insbesondere fuer schraubwinden Drehmomentuebertragungseinrichtung, especially for screw jacks
06/14/1989CN2039251U Quick-reinforcing torque wrench
06/13/1989US4838364 Electrically powered screw tightening tool
06/13/1989US4838361 Attachment for power tool
06/13/1989US4838134 Torque wrench
06/13/1989US4838133 Hydraulic pulse wrench
06/13/1989US4838131 Nut starter
06/07/1989CN2038964U Pre-tightened bolt tension device
06/06/1989US4836349 Clutch type tightening apparatus for allowing free adjustment of tightening force
06/06/1989US4836296 Fluid pressure impulse nut runner
06/06/1989US4836067 Protective socket insert
06/06/1989US4836063 Bolt tightening tool
06/06/1989US4836059 Elastomeric sleeve for conventional wrench sockets
05/1989
05/30/1989US4834192 Two-speed power tool
05/30/1989US4834131 Safety system for pneumatic tools
05/30/1989US4833952 Torque limiting screw-tightening tool
05/30/1989US4833951 Tool for mounting a socket
05/30/1989US4833950 Variable angle screwdriver
05/30/1989CA1254774A1 Power-driven screwing head
05/30/1989CA1254773A1 Depth-adjusting system for a power tool
05/24/1989DE3738899A1 Screw-feeding device for screwdriving machines