Lock actuator for a service brake actuator
US4149451A · kind A · utility
5Cited by
11References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1976 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | Dec 2, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A lock actuator attachment for a pneumatic service brake has a spindle follower for the service brake piston. A freely rotating nut is threaded on the spindle and a brake for preventing nut rotation is operated by a piston that may be pneumatically or hydraulically operated to hold the service brake in actuated position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.