Combination hydraulic and mechanical suspension system
US3992035A · kind A · utility
4Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1975 |
| Grant date | Nov 16, 1976 |
| Priority date | — |
| Expiry date | Jun 20, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G17/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tandem axle suspension system for a vehicle includes a first axle including non-adjustable fixed spring means for connecting the axle for support of the frame of the vehicle, and a second axle including an adjustable hydraulic spring means and including leveling valve means responsive to the distance between the second axle and the frame means for controlling communication of fluid to the second or adjustable hydraulic spring means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.