Patents
Sitemap › B25 - Hand tools; Portable power-driven tools; Handles for hand implements; Workshop equipment; Manipulators › B25B - Tools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding › B25B 21 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
Patents for B25B 21 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose (7,850)
07/1996
07/03/1996EP0719619A1 Clutch mechanism for screw tightening machine
07/03/1996EP0719618A1 Hydraulic torque impulse mechanism
07/03/1996CN1125651A Drill configuration
07/02/1996US5531549 Auto-lock drill chuck
07/02/1996US5531279 Sensor impulse unit
07/02/1996US5531143 Screwdriver with replaceable bit assembly
07/02/1996CA2011963C Fluid flow reversing and regulating ring
06/1996
06/30/1996CA2134949A1 Anti-runout adaptors
06/27/1996WO1996019322A1 Improved torque wrench system
06/27/1996WO1996019321A1 Adapter for axial percussion machines
06/27/1996WO1996019320A1 Screw driving-in process
06/27/1996DE4445813A1 Vorrichtung für eine mit einer axialen Schlageinwirkung ausgerüstete Schlagbohrmaschine bzw. einen Bohrhammer Device equipped with an axial percussive action hammer drill or a hammer drill
06/27/1996DE4445812A1 Verfahren zum Setzen einer Schraube A method of setting a screw
06/27/1996DE4445597A1 Hand held power tool e.g. hammer drill
06/27/1996DE19538812A1 Device for fixing sealing and insulating material on flat roofs
06/27/1996CA2208700A1 Screw driving-in process
06/18/1996US5527140 Bush for lockbolt rivet, and associated tool
06/11/1996US5526460 Impact wrench having speed control circuit
06/11/1996US5525889 Direct plug-in cordless screwdriver
06/04/1996US5522286 Mechanism for coupling and selectively positioning a socket drive transfer assembly and a driver
06/04/1996US5522285 Mechanism for locating a slotted socket relative to a drive transfer housing and combination thereof
05/1996
05/29/1996CN1123213A Fluid operated torque tool
05/28/1996US5520076 Socket for turning a threaded connector by a power tool
05/22/1996EP0712461A1 Rotary piston driving mechanism
05/17/1996WO1996014182A1 Auto-lock drill chuck
05/14/1996US5515753 Power wrench
05/08/1996EP0655964A4 Powered reversing ratchet driver.
05/07/1996US5513546 Device for fastening and loosening threaded members
05/02/1996DE4418949A1 Device for preventing centrifugal and ejection forces in motorised screwdrivers
05/01/1996EP0709168A1 Reversible power wrench
05/01/1996EP0709167A1 Tube wrench
04/1996
04/18/1996WO1996011091A1 Handle for a pneumatic power tool
04/18/1996WO1996011090A1 Pneumatic power tool
04/17/1996EP0706861A1 Power tool and mechanism therefor
04/17/1996EP0706695A1 Load alternation counter
04/17/1996CN1120751A Impact termination tool configured for torque applications
04/02/1996US5503050 Force transferring system for a fastener
04/02/1996US5502883 Method of tightening threaded member
03/1996
03/28/1996DE4433584A1 Drive as used in e.g. battery driven hand power tools with overload coupling
03/26/1996US5501119 Rotary drive system
03/21/1996WO1996008340A1 Split socket with movable facets and drive assembly
03/21/1996CA2199950A1 Split socket with movable facets and drive assembly
03/14/1996DE19531974A1 Schalt-Sperrmechanismus für eine Schrauben-Anzieheinrichtung Shift lock mechanism for a screw attracting means
03/07/1996DE4431674A1 Schraubvorrichtung zum ultraschallgesteuerten Anziehen von Schraubverbindungen Screwdriver for ultrasound-guided tightening threaded
03/05/1996US5495782 Power wrench
02/1996
02/29/1996DE19531043A1 Two-stage epicyclic gearing
02/22/1996WO1996005010A1 Quick change chuck assembly for tool bits
02/20/1996US5492185 Impulse wrench
02/15/1996WO1996004106A1 Power screwdriver and process for tightening screws
02/15/1996WO1996004104A1 Torque transfer device
02/15/1996CA2196566A1 Torque transfer device
02/13/1996US5490439 Nut tightening device
02/08/1996DE4427452A1 Schrauber und Verfahren zum Anziehen einer Schraubverbindung mittels des Schraubers Screwdrivers and method of tightening a screw using the screwdriver
02/07/1996CN2219185Y Electric screwdriver
02/07/1996CN2219184Y 电动扳手 Electric wrench
02/01/1996DE4426370A1 Accessory for power screw driver
02/01/1996DE19525328A1 Fastener for flat roof insulation and sealing material
01/1996
01/24/1996EP0693018A1 Screwdriver with replaceable bit assembly
01/24/1996CN2218060Y Electric shocking spanner
01/17/1996CN2217485Y Self-tapping screw repeating device
01/16/1996US5484026 Handheld electromotive tool with sensor
01/11/1996DE4423520A1 System to tighten or loosen threaded nuts
01/10/1996EP0691185A1 Angle type power nutrunner
01/10/1996EP0691184A1 Collet type fastener removal tool
01/04/1996WO1996000139A1 Torque impulse drive unit for power tool
12/1995
12/28/1995WO1995035185A1 Pulse tool
12/28/1995CA2193728A1 Pulse tool
12/21/1995DE4416483A1 Restriction of centrifugal and throw-out forces in motorised screwdriver
12/20/1995CN2215384Y Energy-storage impact controller
12/20/1995CN2215383Y Threading running out machine for snap parts
12/14/1995DE4420266A1 Electrically driven screwdriver with periodic stop start
12/14/1995DE19520983A1 Impact screwdriver
12/06/1995EP0685300A1 Reversible drill driver tool
11/1995
11/28/1995US5470180 Reversible drill/driver tool
11/22/1995CN2213047Y Hydraulic wrench
11/21/1995US5467684 Rotary piston driving mechanism
11/21/1995US5467671 Fluid-operated torque tool
11/14/1995US5465667 Modular railway maintenance system
11/08/1995EP0680808A1 Impact tool having speed control circuit
11/08/1995CN2211888Y Motor driven spanner
11/02/1995EP0679762A1 Screwing machine
11/02/1995EP0679477A2 Device for placing roofing washers
10/1995
10/31/1995US5461947 Tool holder with ejection slot
10/31/1995US5461946 Setting tool for threaded rods
10/26/1995CA2147735A1 Impact tool having speed control circuit
10/25/1995EP0678943A2 Impact termination tool configured for torque applications
10/25/1995CN2210755Y Electric spanner
10/24/1995US5460062 Reaction unit for threaded connector manipulating device and combination thereof
10/23/1995CA2146898A1 Impact termination tool configured for torque applications
10/20/1995CA2147305A1 Power drive unit for hand tools
10/18/1995EP0677667A1 Screw and relative screwing tool
10/18/1995EP0677356A2 Sensor impulse unit and method
10/18/1995CN2210068Y Power driven percussion wrench used with automobile
10/17/1995US5458206 Power tool and mechanism
10/17/1995US5457866 Bolt-tightening method using an impact wrench
10/13/1995CA2146577A1 Sensor impulse unit and method
10/11/1995EP0676260A1 An impulse torque generator for a hydraulic power wrench
10/10/1995CA2022966C Ratchet tool
09/1995
09/27/1995EP0673723A1 Drill configuration
09/27/1995CN2208471Y Electric spanner
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