Patent · US Active

Control system for automatic release hand brake

US8297716B2 · kind B2 · utility

0Cited by

17References

14Claims

0Family size

Assignee

New York Air Brake LLC · US

Inventors

Laurence E. Vaughn · Watertown, US
Steven R. Newton · Adams, US
Derick Call · Evans Mills, US

Key dates

Filing date	Jul 13, 2009
Grant date	Oct 30, 2012
Priority date	—
Expiry date	Aug 3, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T17/228
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A hand brake control system for a rail vehicle hand brake having a release trigger. The system includes a cylinder for activating the release trigger of the hand brake and a source of pressure. A first valve selectively connects either the source of pressure at a first input or a second input to the cylinder at an output. A second valve selectively connects either the source of pressure or exhaust to the second input of the first valve at the output of the second valve. The first valve is a manually operated valve and the second valve is an electro-pneumatic valve. Linkage allows actuation of the first valve from at least two location about the vehicle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.