Brake actuator with centering dome in service chamber
US5588348A · kind A · utility
5Cited by
17References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1995 |
| Grant date | Dec 31, 1996 |
| Priority date | — |
| Expiry date | Aug 7, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/083
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved spring brake actuator includes a dome extending into the service chamber from the center housing. The spring chamber push rod is formed with a plate having a cross-section corresponding to the dome. The service chamber diaphragm as well as the service chamber piston are also formed with surfaces that correspond to the shape of the dome. The surfaces "stack up" to ensure alignment between the spring chamber push rod and the service chamber push rod. The use of the dome also provides additional stroke to the spring chamber push rod without requiring additional axial length for the overall brake actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.