Hand tool
US6769328B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Jan 24, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B13/462
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hand tool for applying a torque to a threaded fastener includes a tool body having an opening and a fastener engaging mechanism rotatably mounted in the opening. A control assembly comprising a cylindrical roller, spring assembly and control switch are mounted with respect to the tool body. The spring assembly biases the roller against surfaces on the tool body and the fastener engaging mechanism. The roller the releasably locks the faster engaging mechanism to the tool body when the tool body is rotated through a drive stroke. The tool body can be moved through drive and return strokes of any arc length with no significant lost motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.