Dual-pawl full engagement reversible ratchet wrench
US6101901A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1999 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Aug 10, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/466
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A reversible ratchet wrench utilizing two pawls that mesh with teeth inside a housing. The design allows for engagement of all the teeth on a pawl with all the teeth in the housing. The invention provides for reduced stress on the individual teeth of the pawl as compared with a traditional reversible ratchet wrench. Smaller components of less expensive material may subsequently be utilized, allowing for a reduction in housing size. Both a round head reversible ratchet wrench and a pear head reversible ratchet wrench are contemplated. The wrenches of the present invention share several common components. Interchangeability is desirable due to the reduction in required components, and the reduced costs associated therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.