Electro-pneumatic control for a vehicle fluid pressure braking system
US4550953A · kind A · utility
14Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1983 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Dec 16, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/683
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electro-pneumatic control system (10) for a vehicle fluid pressure braking system controls communication to the trailer supply line (30) and to the vehicle spring applied, fluid pressure released parking brakes (78). Relays (66,92) are controlled by manually actuated switches (42,58) to actuate solenoid valves (74,84) which control communication to the supply line (30) and to the parking brakes (78). Actuation of the solenoid valves (74,84) is maintained by the relays (66,92) in response to pressure actuated switches (76,88) which are responsive to the pressure levels in the supply line (30) and in the parking brake (78).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.