Tightening system with quality control apparatus
US3973434A · kind A · utility
39Cited by
7References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1974 |
| Grant date | Aug 10, 1976 |
| Priority date | — |
| Expiry date | Sep 19, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/1456
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tightening system for tightening a fastener is disclosed herein and includes a wrench for tightening the fastener, a control system for shutting off the wrench when the fastener has been tightened to a predetermined condition and a quality control system including apparatus for determining if tightening characteristics of the fastener at the predetermined condition lie within a range which would be expected for those tightening characteristics for fasteners tightened to the predetermined condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.