Patents for B25B 23 - Details of, or accessories for, spanners, wrenches, screwdrivers (20,046)
06/1994
06/28/1994US5323673 Nut and bolt holder for socket wrenches
06/28/1994US5323672 Locking assembly for maintaining a box wrench engaged with a bolthead
06/23/1994WO1994013437A1 Method for monitoring and controlling stress in a threaded member
06/23/1994DE4343110A1 Rotation-angle-monitored tightening or loosening of screw connections by power driven hand-held screwdriver
06/23/1994DE4243501A1 Electric screwdriver
06/23/1994DE4243069A1 Pulse tool, esp. pulse screwdriver
06/22/1994CN2169522Y Rotary wheel changeable multipurpose screwdriver
06/21/1994US5321998 Positive engagement power transmission tool
06/15/1994EP0601988A1 Torque delivering power tool
06/15/1994CN2168689Y Unsmoothed handle of screw driver
06/15/1994CN2168688Y Torque regulator
06/15/1994CN2168687Y Screw driver with screw clip
06/14/1994US5320003 Wrench for underground valves
06/09/1994WO1994012319A1 Intermediate connecting and lengthening piece for spanners
06/09/1994DE4336376A1 Chuck for stem ends of insertable screwdriver bit - has actuating ball in one radially extended bore in socket wall
06/09/1994DE4241005A1 Screwdriver insert bit with insertable active zone - which is adjacent positively to stem or short intermediate part
06/09/1994DE4240748A1 Insert for connecting and lengthening screw spanner - has round stops with magnetic face arranged either on free ends of insert or in central region and has long bore for rod
06/08/1994EP0600285A1 Device for screwing on fastening elements
06/08/1994EP0600283A1 Device for screwing on fastening elements
06/08/1994EP0462257B1 Die chuck for multiple-cornered ends of tool spindles
06/07/1994US5318397 Mechanical tensioner
06/04/1994CA2084486A1 Magnetic fastener retainer
06/01/1994EP0599239A1 Fastening element and device for screwing such an element
06/01/1994CN2166923Y Sliding movement type prelimited torque wrench
05/1994
05/31/1994US5315902 Stud removing tool
05/26/1994WO1994011159A1 Rod rotating tool
05/25/1994EP0598561A1 Recessed screw
05/25/1994CN2165969Y Sound signal torque spanner
05/24/1994US5315501 Power tool compensator for torque overshoot
05/19/1994DE4238182A1 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
05/18/1994CN2164958Y Safety screwdriver for apparatus installation
05/11/1994WO1994009947A1 Open-end ratchet wrench
05/11/1994EP0596669A1 Screwdrivers
05/11/1994EP0596374A1 Bit with frictional retention in drive socket
05/11/1994DE4238757A1 Positioner for railway track superstructure fastening - has spring-loaded part on holder and clamped via slider during lowering of bolt spindle housing
05/10/1994US5310010 Automatic overload release and power stoppage device
05/10/1994US5309799 Transparent-sleeve screw holding and driving tool
05/10/1994US5309798 Tool bit retaining assembly
05/04/1994EP0595545A1 Stud driver and remover for large diameter studs
05/04/1994EP0460176B1 Improved composite wrench
05/03/1994US5307713 Self-aligning wrench
04/1994
04/27/1994EP0593970A1 Screw-driving device
04/27/1994EP0593742A1 Method of and device for mechanical tensioning of bolts, studs and the like
04/27/1994CN2163031Y Combined pen-like small tool
04/26/1994US5305511 Hand tool for applying a motion stop ferrule to a safety cable
04/20/1994EP0593323A1 Device for holding in position a plurality of screws, nuts or the like upon some piece or other
04/20/1994CN2162325Y Inner hexagonal sleeve head
04/20/1994CN1085484A Torque controller and its spanner
04/19/1994US5303620 Method of attaching a work piece to a support
04/19/1994US5303601 Torque wrench
04/13/1994EP0591574A1 Power driven electric handtool
04/13/1994CN2161429Y Multi-bit tool screwdriver
04/12/1994US5302068 Fastener having recessed, non-circular head, and fastener-driving tool
04/12/1994US5301573 Stud driver and remover for studs having non-grip area
04/07/1994DE4333599A1 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
04/06/1994EP0591096A1 Screwing handtool with depth gauge
04/05/1994US5299474 Tamper resistant device for the application of preselected torque to screws and the like
04/05/1994US5299473 Stud driver and remover for large diameter studs
03/1994
03/31/1994DE4331846A1 Tightening of screwed joint - involves detecting contact between components by sensing positive kink in tightening-torque curve
03/31/1994DE4240155C1 Hand held power drive screwdriver - has piston sliding spindle axially into position with screw-shank protruding from mouth
03/30/1994EP0589778A1 Mounting element as well as method of mounting and mounting machine
03/30/1994EP0589271A1 Method and apparatus for ultrasonic-controlled tightening of screws
03/30/1994CN2159856Y Strain type digital indicating socket torque spanners
03/29/1994US5297458 Torque wrench
03/26/1994CA2106047A1 Fastener device, process and machine
03/24/1994DE4231265A1 Colour applicator for torque wrench - has storage tank for paint formed as spray box which is insertable in retainer having two clamp stirrups to form receptor for tank
03/23/1994EP0587616A1 Cable sealing.
03/23/1994CN2159288Y Portable screw driver
03/22/1994US5295831 Disposable torque wrench for dental components
03/22/1994US5295423 Bit with frictional retention in drive socket
03/22/1994US5295422 Wrench having a greater driving strength
03/22/1994US5295295 Apparatus for feeding and tightening threaded parts
03/17/1994WO1994005463A1 Lockable spring tightening device
03/17/1994WO1994005444A1 Safety cable tool
03/16/1994EP0586811A1 Monitoring and control of fluid driven tools
03/08/1994US5291811 Back-side taper wedging drive system
03/08/1994US5291809 Locking adapter for socket wrench
03/08/1994CA1327640C Apparatus and method for determining torque presenting digital torque readout and automatic cycling and termination of wrench operation in a torque wrench system
03/03/1994WO1994004321A1 Tool with moment indication
03/03/1994DE4328599A1 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
03/03/1994DE4228940A1 Screwdriver set - has flexible but torsionally stiff shaft with end socket accepting variety of interchangeable driving bits
03/02/1994CN2157858Y 电磁螺丝刀 Electromagnetic screwdriver
03/02/1994CN2157857Y Spinner
03/02/1994CN2157856Y Improved power-driven (air-actuated) braking device of screwdriver
03/02/1994CN1082969A Method and apparatus for supplying of units
03/01/1994US5289886 Automatic screw fastening machine
03/01/1994US5289885 Tightening tool
03/01/1994US5289745 Socket wrench extension with lock
02/1994
02/23/1994CN2156994Y Screwdriver
02/22/1994US5287775 Torque limiting drawing holder nut wrench
02/17/1994WO1994003082A1 Hand tool
02/15/1994US5285929 Parts feeding and receiving mechanism
02/15/1994US5285857 Nut runner for clamping bolts with predetermined torque and bolt clamping method
02/11/1994CA2101984A1 Monitoring and control of fluid driven tools
02/08/1994US5284217 Apparatus for tightening threaded fasteners based upon a predetermined torque-angle specification window
02/08/1994US5284074 Automatic screw-driving device
02/03/1994DE4214354A1 Producing screw connection between two parts - measuring torque or angle of rotation until switch=off point is attained
02/02/1994EP0581247A1 Setting device for retention elements
02/02/1994EP0580628A1 Hand-held power tool with jamming-detection sensor.
02/01/1994US5282830 Open-end ratchet wrench