Brake power booster, in particular for automotive vehicles
US5158004A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1990 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Dec 17, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/575
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake power booster for automotive vehicles has a booster housing sealingly subdivided by one or more axially movable walls into one or more vacuum chambers and one or more working chambers, wherein a push rod is protected against dropping out of its assembled position, by integral retention features formed in a bowl-shaped insert member that receives the reaction plate. The insert member is received in a recess of the control valve housing and is held therein by a resetting spring which reacts against radially outwardly extending tabs on the insert member. Indentations, sheared-in depressions or radially inwardly extending tabs serve as alternate forms of the retention features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.