Friction clutch wrench
US5535647A · kind A · utility
13Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 20, 1994 |
| Grant date | Jul 16, 1996 |
| Priority date | — |
| Expiry date | May 20, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/5066
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A friction clutch wrench in the style of locking grip pliers for imparting torsion to an object. Jaws open to access the work from the side, and then close and lock rigidly around the work. Once locked inside the jaws, the work engages a friction clutch ratchet mechanism provided in the confronting jaw faces. When the wrench is turned in one direction about the work, the friction clutch grips the work and imports torsion to it. When the wrench is rotated in the other direction, however, the friction clutch permits free rotation of the wrench about the work.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.