Extension spring installation mechanism
US8646762B2 · kind B2 · utility
2Cited by
24References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2011 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Apr 18, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49963
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A spring installation mechanism includes a bracket fixed against displacement, a spring that extends along an axis and includes first and second ends, the second end being fixed against displacement, a retainer secured to the first end and including helical threads, and a screw including a shank having helical threads engaged with the threads of the retainer, axial displacement of the screw toward the retainer limited by contact with the bracket, said contact permitting rotary displacement of the screw relative to the retainer and the spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.