Combined service and parking brake
US5954162A · kind A · utility
21Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Sep 25, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2127/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A combined service and parking brake includes a hydraulic actuating device (1) which has a brake cylinder (2) and a brake piston (3), and a hydraulically operable locking device (8) for fixing the brake piston (3) in the applied condition. According to the present invention, the locking device (8) is operable by a pressure impact through the hydraulic supply line (5) provided for service brake operations, and the pressure impact is in a pressure range that is above the pressure range provided for service brake operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.