Reversing ratchet wrench
US5199330A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1991 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Oct 1, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44923
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A reversing ratchet wrench especially suited for mass production and having few easily machinable parts. The pawl and driver are provided with overlapping covers which retain the pawl and protect the engaging teeth. The driver cover is flush with the wrench head for added convenience, yet makes no contact because the driver is supported on a driver skirt. Hence, the wrench is highly impact resistant. A unique retaining clip for retaining the driver allows convenient replacement of the pawl cap/reversing lever without removal of the pawl. Likewise, the wrench can be completely disassembled without special tools, thereby facilitating point-of-sale repair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.