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Class Information
Number: 81/468
Name: Tools > Wrench, screwdriver, or driver therefor > Responsive to torque on work > With marking mechanism
Description: Wrench or screwdriver provided with a mechanism intended to mark the work in a manner which is detectable by an observer when the selected torque is applied to the work.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7444906 |
Device for identifying clamping tools |
Nov. 4, 2008 |
| 7299725 |
Torque fastening devices and apparatuses |
Nov. 27, 2007 |
| 7270036 |
Torque ratchet wrench |
Sep. 18, 2007 |
| 7100476 |
Torque wrench for dental implants |
Sep. 5, 2006 |
| 6978705 |
Torque wrench |
Dec. 27, 2005 |
| 6931969 |
Adjustable spanner having a torque detection function |
Aug. 23, 2005 |
| 6871153 |
Dynamic calibration qualifier |
Mar. 22, 2005 |
| 6332383 |
Fastening torque control tool in fastening device |
Dec. 25, 2001 |
| 6112626 |
Torque confirmation socket system |
Sep. 5, 2000 |
| 5890406 |
Electronic torque limiting and parts marking wrench |
Apr. 6, 1999 |
| 5467674 |
Combined torque limiting and marking wrench |
Nov. 21, 1995 |
| 5390573 |
Fastening system for torque limited fasteners |
Feb. 21, 1995 |
| 4823653 |
Free spinning, self-locking threaded fastener, and method and tool for setting it |
Apr. 25, 1989 |
| 4768407 |
Marking device |
Sep. 6, 1988 |
| 4462285 |
Power tool marking system |
Jul. 31, 1984 |
| 4393734 |
Combined torque limiting and marking wrench |
Jul. 19, 1983 |
| 4301698 |
Device for depositing a pasty substance on a surface automatically and automatic machine therefor |
Nov. 24, 1981 |
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