Tensionless power ratchet wrench assembly
US7171873B2 · kind B2 · utility
9Cited by
24References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 2006 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Jul 18, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B21/004
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power ratchet wrench assembly having a tensionless head wherein operation of the ratchet mechanism does not require a tensioning means for applying a frictional force against the ratchet mechanism to inhibit rotational movement of the ratchet mechanism. In one embodiment, the invention provides a first gear, a second gear, and a ratchet mechanism having a drive body; wherein the drive body is alternately: coupled to the first gear and ratcheting with the second gear, and coupled to the second gear and ratcheting with the first gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.