Ratcheting screwdriver
US5771760A · kind A · utility
17Cited by
13References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Dec 17, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/463
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ratcheting screwdriver with a handle and a gear rotatable therein and two pawls engageable between the handle and the gear, for selective ratcheting action. A ring is rotatable on the handle for removing the pawls from engagement with the gear, and springs yieldingly bias the pawls into engagement with the gear. The ring has recesses on a circular wall for receiving portions of the pawls in pivoting the pawls into engagement with the gears.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.