Suspension spring system
US4958812A · kind A · utility
19Cited by
11References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1988 |
| Grant date | Sep 25, 1990 |
| Priority date | — |
| Expiry date | Jun 28, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F3/093
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A suspension spring system includes a housing, a suspension spring located in the housing and a bistable control spring located in the housing. A load supporting member is positioned at least partially within the housing and is movable with respect to the housing. The control spring is radially compressed within the housing so that the control spring is prestressed. The control spring is shiftable between two stable final positions and is, thus, able to influence and control the spring characteristics of the suspension spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.