Method of tightening threaded members
US5837907A · kind A · utility
17Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1997 |
| Grant date | Nov 17, 1998 |
| Priority date | — |
| Expiry date | May 22, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method is provided for tightening up threaded members with proper tightening torque free of unequivalent tightening. In tightening a plurality of threaded members by drive means, the amount of tightening and tightening torque of each threaded member are detected as the members are progressively tightened, and when the tightening amount of each member has reached a value within a specified range, the difference in tightening torque between the threaded members is checked as to whether it is within a predetermined range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.