Fail safe coil spring including mounting mechanism
US6260833A · kind A · utility
9Cited by
7References
19Claims
0Family size
Inventor
Key dates
| Filing date | Jan 21, 2000 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Jan 21, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F1/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
This disclosure sets out an improved coil spring responding in compression to a tensile load. The load is applied by load engaging equal and oppositely deployed hooks wherein both hooks have a load engaging throat at the lower end connected with a pair of parallel legs. One leg terminates in a hanger having the form of a J-shaped hook and the other leg terminates in a protruding eyelet sized to engage a tang at the end of the spring. The two hooks are maintained at approximate right angles with respect to each other to distribute the forces more evenly in the coil spring to avoid spring bowing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.