Tandem diaphragm brake booster
US4257312A · kind A · utility
15Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1978 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Nov 14, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/563
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tandem diaphragm brake booster includes first and second diaphragms disposed in a housing and a pair of diaphragm pistons which are axially movable for assisting braking efforts through manual operation. The two diaphragm pistons are connected to each other by a key member which also serves to prevent an air valve from accidentally returning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.