Ratchet wrench
US6516689B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Nov 8, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/463
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A ratchet wrench is disclosed. The wrench includes a handle including a head and an elongate grippable portion. The head includes toothed walls defining a palm socket receiving aperture. The handle carries a manually actuatable spring biased lever having a latching portion projecting into the aperture in a normal position and an external actuating portion spaced from the latching portion for manual actuation against the spring bias to shift the latching portion from its normal position to a release position at least partially within a lever recess in the handle. A palm ratchet is disclosed which has a toothed perimeteral portion insertable into the aperture when the latching portion is in its release position. The perimeteral portion includes a surface defining a latching recess for receiving the latching portion when the latching portion is in the normal position thereby maintaining the handle and palm ratchet in a connected condition. The toothed wall and the toothed portion being coactably engageable whereby forces applied to the handle will rotatively drive the palm ratchet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.