Service portion for brake control valves
US4002375A · kind A · utility
3Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 1976 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Apr 5, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T15/42
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A service valve portion of a railway vehicle brake control valve device embodies large capacity spool-type brake cylinder application and release piston valves and a small spool-type valve for controlling the supply and release of fluid under pressure to and from the application and release piston valves and also the reservoir charging and quick service features.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.