Device for discontinuing and automatically restoring the operational function of a spring brake actuator
US4063491A · kind A · utility
15Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1976 |
| Grant date | Dec 20, 1977 |
| Priority date | — |
| Expiry date | Feb 27, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/086
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A spring brake actuator has manual means for discontinuing and automatic means for restoring the spring braking function. A non-self-locking nut member is rotatable about the spindle and is releasably locked to the brake cylinder in that direction it rotates due to spring force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.