Patents by Inventor Laurence E. Vaughn

Laurence E. Vaughn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Control system for automatic release hand brake
    Patent number: 8297716
    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.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: October 30, 2012
    Assignee: New York Air Brake Corporation
    Inventors: Laurence E. Vaughn, Steven R. Newton, Derick Call