Digital beam torque wrench
US7823485B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 2008 |
| Grant date | Nov 2, 2010 |
| Priority date | — |
| Expiry date | Aug 24, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/1425
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A torque wrench includes a main beam having a distal end and a proximal end, a drive element disposed at the distal end of the main beam, a stationary beam having a distal end fixedly secured to the main beam at a first location on the main beam, and having a proximal end, and a displacement sensor assembly disposed at a second location associated with the main beam and with the stationary beam to detect an amount of displacement of the main beam relative to the stationary beam. The displacement sensor assembly includes an actuating element to produce a radiation signal and rigidly secured to one of the main beam or the stationary beam and an actuable element responsive to the radiation signal and rigidly secured to the other one of the main beam or the stationary beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.