Step motor actuated continuous variable shock absorber
US5911290A · kind A · utility
15Cited by
21References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1997 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Feb 20, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/464
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An adjustable damping shock absorber includes a pressure tube with a piston valve assembly slidably disposed within it. The piston valve assembly includes a compression valve assembly which is biased to a closed position and an extension valve assembly which is also biased to a closed position. The damping rate for the shock absorber is adjusted by selectively changing the biasing load of one or both of the valve assemblies. When the biasing load is increased, a firm damping for the shock absorber is produced. When the biasing load is decreased, a soft damping for the shock absorber is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.