Tandem master cylinder
US4621498A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 1985 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Jun 10, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T11/224
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a tandem master cylinder for a vehicle hydraulic brake system having a push-rod piston designed as stepped piston and an intermediate piston designed as stepped piston both pistons being aligned in a stepped bore of the cylinder housing for the purpose of obtaining a particularly short and compact design. The working cylinder communicates with the connecting bore of the one brake circuit provided in the large-diameter step of the intermediate piston, while the small-diameter step of the intermediate piston fits in the working cylinder formed by the small-diameter step of the stepped bore so that the working cylinder is in communication with the other brake circuit via the connecting bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.