Single-directional ratchet wrench structure with a mating block that may be retained in position by a snap ring
US6467378B1 · kind B1 · utility
15Cited by
3References
3Claims
0Family size
Inventor
Key dates
| Filing date | Aug 20, 2001 |
| Grant date | Oct 22, 2002 |
| Priority date | — |
| Expiry date | Aug 20, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/463
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A single-directional ratchet wrench structure includes a mating block which has an end portion opposite to the ratchet wheel and formed with an insertion groove, so that the C-shaped snap ring may be rested on the insertion groove of the mating block, such that the mating block may be retained in position by the C-shaped snap ring. Thus, the mating block will not be in contact with the ratchet teeth of the ratchet wheel during operation of the wrench.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.