Automatic release hand brake control system
US8794717B2 · kind B2 · utility
3Cited by
23References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2009 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | May 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20474
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a rail vehicle hand brake having a release activated by a pneumatic cylinder, the present control system includes a manual valve having an output connected to a source of pressure at an input when manually activated. A volume is to be charged by the source of pressure. A choke connects the volume to exhaust. The volume and the choke prolong the time the source of pressure is connected to the pneumatic cylinder after the manual valve is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.