Control apparatus for the application and release of a hand brake
US6394559B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2000 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Sep 15, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61H13/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control apparatus is provided which is engageable with a hand brake assembly on a railway vehicle for operation of an application cylinder for applying the hand brake assembly. This apparatus includes a source of fluid pressure which is engageable with the railway vehicle. A pneumatic actuation valve which is connected to the source of fluid pressure for initiating communication of fluid pressure from the source of fluid pressure. A force regulating valve which is connected to the pneumatic actuation valve for receiving the fluid pressure from the actuation valve and a mechanically driven valve is connected to the force regulating valve for receiving the fluid pressure from the force regulating valve and for communicating the fluid pressure to the application cylinder to apply the hand brake assembly. An electrically controlled valve may be positioned intermediate the source of fluid pressure and the force regulating valve to enable electrical actuation of fluid communication from the source of fluid pressure to the force regulating valve. Additionally, a pneumatic actuation valve and/or an electrically controlled actuation valve may be provided to communicate fluid pressure from…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.