Parking brake system with transmission interlock
US3978946A · kind A · utility
15Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1974 |
| Grant date | Sep 7, 1976 |
| Priority date | — |
| Expiry date | Sep 19, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H63/48
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A parking brake system with transmission interlock means is provided with means to override the interlock means. The parking brake system is spring-actuated and fluid pressure released with means to vent the transmission controls when the parking brake is engaged. A special interlock valve is provided to selectively override the normal system to prevent venting of the transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.