Screw-locking device
US4091853A · kind A · utility
1Cited by
9References
3Claims
0Family size
Inventor
Key dates
| Filing date | Apr 14, 1976 |
| Grant date | May 30, 1978 |
| Priority date | — |
| Expiry date | Apr 14, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/957
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A screw-locking device has a stamped cup spring with a solid annular core having closely spaced triangular radial ribs top and bottom. The distance from the peaks of the ribs from the center plane of the core continually decreases from the outer rim of the annular spring towards the inner rim.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.