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Class Information
Number: 81/467
Name: Tools > Wrench, screwdriver, or driver therefor > Responsive to torque on work
Description: Wrench or screwdriver wherein either (a) the operation of the wrench or screwdriver is stopped, or (b) the tool signals when a selected amount of turning or twisting force (i.e., torque) on the work is exceeded.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7389700 |
Variable torque-limiting driver |
Jun. 24, 2008 |
| 7383756 |
Torque screwdriver structure |
Jun. 10, 2008 |
| 7347129 |
Tool operable for connecting a male F-type coaxial cable connector |
Mar. 25, 2008 |
| 7343824 |
Variable torque-limiting driver |
Mar. 18, 2008 |
| 7334647 |
Rotary tool |
Feb. 26, 2008 |
| 7334509 |
Torque limiting driver and assembly |
Feb. 26, 2008 |
| 7331263 |
Surgical screwdrivers with torque control and methods of use |
Feb. 19, 2008 |
| 7311025 |
Powered driver with location specific switching |
Dec. 25, 2007 |
| 7281457 |
Wrench with adjustable maximum operational torque |
Oct. 16, 2007 |
| 7281459 |
Torque regulating assembly |
Oct. 16, 2007 |
| 7272999 |
T-handled torque-limiting driver |
Sep. 25, 2007 |
| 7270036 |
Torque ratchet wrench |
Sep. 18, 2007 |
| 7243581 |
Fixed torque limiting driver |
Jul. 17, 2007 |
| 7243580 |
Torque limiting driver with easily disassembled components for sterilization |
Jul. 17, 2007 |
| 7222559 |
Screwdriver with torque setting mechanism |
May. 29, 2007 |
| 7219583 |
Pneumatic screwdriver having an adjustable clockwise torque and a maximum counterclockwise torque |
May. 22, 2007 |
| 7188556 |
Rotatable hand tool with a torque controller and method |
Mar. 13, 2007 |
| 7185570 |
Spanner with enhancing structure for positioning electronic devices installed therein |
Mar. 6, 2007 |
| 7174818 |
Click-type torque wrench and improved cam assembly therefor |
Feb. 13, 2007 |
| 7159494 |
Torque limiting wrench for ultrasonic scaler tip insertion |
Jan. 9, 2007 |
| 7137323 |
Replaceable and rotatable tool with function of measuring twisting forces |
Nov. 21, 2006 |
| 7117772 |
Wrench having a safety device |
Oct. 10, 2006 |
| 7107883 |
Screw-driving tool for implant screws |
Sep. 19, 2006 |
| 7104161 |
Engine valve adjustment device |
Sep. 12, 2006 |
| 7100482 |
Electrically powered hand-held screw driver |
Sep. 5, 2006 |
| 7100476 |
Torque wrench for dental implants |
Sep. 5, 2006 |
| 7089833 |
Air actuated pneumatic impact wrench lug bolt tool |
Aug. 15, 2006 |
| 7080582 |
Screwdriver tool |
Jul. 25, 2006 |
| 7055415 |
Screwdriver assembly and method with torque measuring scale |
Jun. 6, 2006 |
| 7036407 |
Wrench with controlled tightening |
May. 2, 2006 |
| 7021179 |
Pressure-operated power screwdriver having a measuring section |
Apr. 4, 2006 |
| 7021180 |
Torque sensing tool |
Apr. 4, 2006 |
| 7013769 |
Torque adjustable screw driver |
Mar. 21, 2006 |
| 7011001 |
Torque wrench |
Mar. 14, 2006 |
| 7011000 |
Bolt or nut tightening device having reaction force receiving member |
Mar. 14, 2006 |
| 7000508 |
Device for numerically displaying torque of torque wrench having a preset maximum torque |
Feb. 21, 2006 |
| 6990877 |
Torque wrench |
Jan. 31, 2006 |
| 6978705 |
Torque wrench |
Dec. 27, 2005 |
| 6954682 |
Method and apparatus for tightening bolts |
Oct. 11, 2005 |
| 6948410 |
Torque wrench with sleeve for locking rotatable handle |
Sep. 27, 2005 |
| 6931969 |
Adjustable spanner having a torque detection function |
Aug. 23, 2005 |
| 6920811 |
Bent wrench having torque measurement function |
Jul. 26, 2005 |
| 6892611 |
Screwdriver |
May. 17, 2005 |
| 6886434 |
Wrench with a fixed maximum operational torque |
May. 3, 2005 |
| 6868761 |
Breakaway torque wrench |
Mar. 22, 2005 |
| 6871153 |
Dynamic calibration qualifier |
Mar. 22, 2005 |
| 6843628 |
Fastening means with machine-readable information storage means |
Jan. 18, 2005 |
| 6840138 |
Device for screwing on caps |
Jan. 11, 2005 |
| 6836614 |
Electrical power tool having a motor control circuit for providing control over the torque output of the power tool |
Dec. 28, 2004 |
| 6834567 |
Multiple torque adjustable spindles with a single drive motor |
Dec. 28, 2004 |
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