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)
11/2003
11/06/2003WO2002059491A3 First stage clutch
11/05/2003CN2584363Y Hydraulic nut loosening tool
11/05/2003CN1126640C Energy storing impact mechanism for energy-storing wind trigger
11/04/2003US6640669 Ratchet wrench
10/2003
10/29/2003CN2582819Y Built-in flywheel impact electric wrench
10/23/2003US20030196824 Power tools
10/22/2003EP1354669A1 Locking device for output shaft of electric tools
10/22/2003EP1353779A2 Device for screwing in fastening elements
10/14/2003US6631659 Vibrating nutrunner
10/08/2003CN2578053Y Electric screwdriver
10/02/2003DE20309492U1 Servo driven screwdriver, with automatic screw feed, has a front mounted locating flange pressed onto the screw site and with automatic connection to the screw drive when the tool is pressed into position
10/01/2003CN2576426Y Screw driver
09/2003
09/24/2003EP1345737A2 Pneumatic rotary tool
09/24/2003CN1122140C Shaft coupling
09/23/2003US6622596 Spring loaded drive gun
09/18/2003US20030173178 Torque transmission mechanisms and power tools having such torque transmission mechanisms
09/16/2003US6619159 Nutrunner safety sleeve
09/12/2003WO2003011533A3 Battery powered screwdriver and screw starting device
09/11/2003US20030171185 Multispeed power tool transmission
09/11/2003DE20310541U1 Electric motor powered screw or nut setting or opening tool, comprises power supply unit which consists of battery, electric double-layered capacitor and charging seat, and has LED lighting and indicator lamp
09/11/2003DE10022857C2 Knarre Rattle
09/10/2003EP1341646A1 Reversible ratchet head assembly
09/04/2003DE20309684U1 Servo powered socket wrench has a compact electric motor inside the handle and driving the socket stud via bevel gears
09/04/2003DE20305853U1 Electric drill with hammer or rotational operation has pressure ring with catches to control movement of arms controlling drill shaft drive
09/03/2003CN2569980Y Full automatic computer-controlled screw nut mounting machine
09/03/2003CN1439489A Electric tools
08/2003
08/28/2003US20030159843 Electric power tool
08/27/2003CN2568371Y Multiple-shaft bolt screwing machine
08/27/2003CN2568370Y Electric spanner
08/26/2003US6609577 Percussive rotational impact hammer
08/21/2003US20030154824 Pneumatically operated screw driver having drive bit attaching and detaching mechanism
08/20/2003CN1118356C Universal electric twisting tool
08/14/2003US20030150298 Hand-held power tool
08/14/2003DE20308714U1 Pneumatic industrial screwdriver case has cap with locating projections and detents held in place by screw bolts
08/12/2003CA2116606C Power tool and mechanism
08/07/2003WO2003064113A1 Power impact tool torque apparatus
08/07/2003US20030145388 Screw driving device
08/06/2003CN1433873A Adjustable counteraction arm for power type turning tool and power type turning tool thereof
07/2003
07/31/2003US20030140737 Multi-swivel connector for a fluid operated tool
07/30/2003EP0886559B1 Power nutrunner
07/29/2003US6599197 Impulse torque generator for a hydraulic power wrench
07/29/2003US6598684 Impact power tools
07/29/2003US6598502 Multi-swivel connector for a fluid operated tool
07/24/2003US20030136570 Pneumatic rotary tool
07/24/2003US20030136229 Adjustable reaction arm for torque power tool, and torque power tool provided therewith
07/23/2003EP1329293A2 Adjustable reaction arm for torque power tool and torque power tool provided therewith
07/22/2003US6595300 Side handles on drill/drivers
07/17/2003US20030131691 Compact hydraulic torque wrench and reaction arm
07/17/2003US20030131690 Machine for clamping material to be fastened and automatically installing screws
07/17/2003US20030131462 Hand-held type electrically powered fastener tool with on-board controller
07/16/2003CN2560472Y Energy-stored electric wrench
07/16/2003CN2560471Y Portable electric bolt setting and loosing tool for automobile
07/16/2003CN1429690A Hydraulic operating torque wrench
07/16/2003CN1114519C Oscillating mass-based tool with dual stiffness spring
07/10/2003US20030127237 Check mechanism for rotary shaft of pneumatic tool
07/10/2003US20030126956 Fluid-operated torque wrench
07/09/2003EP1325794A1 Fluid-operated torque wrench
07/03/2003WO2003053616A1 Side handles on drill/drivers
07/03/2003US20030121685 Power tool
07/03/2003US20030121680 Pneumatic rotary tools
07/03/2003US20030121679 Insert for a plastic power tool housing
07/02/2003EP1323500A2 Reverse apparatus for air impact wrench
07/02/2003CN1427756A Machine tool, especially hand machine tool
07/02/2003CN1426874A Ratchet wrench
07/01/2003US6585141 Adjustable-length end piece for a fastener drive tool
07/01/2003US6585060 Pneumatic rotating tool
06/2003
06/26/2003US20030116335 Side handles on drill/drivers
06/26/2003US20030115992 Ratchet wrench
06/25/2003EP1321237A2 Electrically powered fastener tool
06/25/2003CN1425536A Pheumatic ratchet driving spanners
06/24/2003US6581697 Power impact tool torque apparatus
06/19/2003US20030110910 Screw driving tool
06/18/2003EP1318893A1 Low-profile wrench
06/18/2003CN2555983Y Bolt tensioner
06/17/2003US6578643 Pneumatic ratchet drive wrench
06/12/2003WO2002053319A3 Rotational power transfer device
06/10/2003CA2145962C Screw and relative screwing tool
05/2003
05/28/2003CN2552645Y Environmental protection pneumatic screwdrivers
05/27/2003US6571179 Intelligent power tool
05/27/2003US6568298 Reversible ratchet head assembly
05/21/2003CN2551410Y Rotating tool for electric screwdriver
05/21/2003CN1418760A Electronic driven tool
05/21/2003CN1109200C Nut, and device for tightening and untightening same
05/15/2003US20030089511 Electric tool
05/15/2003US20030089510 Impact tool with improved operability
05/14/2003CN1417002A Torque wrench
05/14/2003CN1108230C Tool controlled by fluid
05/13/2003US6561284 Reverse apparatus for air impact wrench
05/07/2003CN2548772Y Rotation axis of electric screw driver clutch
05/06/2003US6559613 Method for operating an open end power wrench
05/02/2003EP1306170A2 Torque wrench
05/01/2003US20030080703 Method for operating an open end power wrench
05/01/2003US20030079569 Torque wrench
04/2003
04/30/2003CN1107185C Tip valve for pneumatic tool
04/29/2003US6553873 Hydraulic wrench control valve systems
04/24/2003WO2003033203A1 Portable power tool with rotating output shaft and overload protection
04/24/2003US20030075348 Rocker button activated forward/reverse mechanism for a power tool
04/23/2003CN1411957A Electric hand tools
04/22/2003US6551037 Removable chuck
04/22/2003US6550786 Removable chuck
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