Control system for an integral spring-loaded parking and service brake
US3999075A · kind A · utility
14Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1975 |
| Grant date | Dec 21, 1976 |
| Priority date | — |
| Expiry date | Aug 18, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control system for a spring-applied service brake which can also be used as a parking brake. Pressure from the vehicle hydraulic system is normally used to release the brakes. In the event of a loss of the primary pressure from the hydraulic system, the control system switches automatically to use of secondary pressure from the vehicle compressed air system to release the brakes, while maintaining the ability of the operator to apply the brakes by normal operation of the service and parking brake controls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.