Master cylinder for hydraulic brake system
US4244185A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1978 |
| Grant date | Jan 13, 1981 |
| Priority date | — |
| Expiry date | Jun 29, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/144
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A master cylinder includes a master cylinder piston which is slidable by a booster with a hydraulic transmission interposed between the booster and the master cylinder piston. The booster includes two booster pistons the first of which has the same effective area as the master cylinder piston. With the system intact, the master cylinder piston is shifted as a result of the pressure fluid displaced by the two booster pistons to provide the hydraulic transmission. In the event of failure of the booster, the master cylinder piston is actuated directly by mechanical means through the first booster piston with the hydraulic transmission thereby being omitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.