Method and apparatus for monitoring and controlling tightening of prevailing torque fasteners
US5591919A · kind A · utility
26Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49766
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fastener tensioning method wherein pre-tensioning fastener tightening history acquired during the tightening of the fastener prior to the point of proportional tensioning of the fastener is utilized to modify the tightening cycle occurring after the point of proportional fastener tensioning to reduce the resultant tension scatter while using a tightening perimeter such as torque as an indicator of fastener tension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.