Park brake sensor and transmission override
US5111921A · kind A · utility
8Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1990 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Nov 20, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/168
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A park brake sensor valve is added to a circuit having an engagement override valve (EOV). The EOV normally prevents engagement of the transmission any time a vehicle is started with the speed selector in any position other than neutral. The park brake selector valve causes the EOV to disengage the transmission anytime the park brake is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.