Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
John Reynolds0
Vincent S. Guarrera, Jr.0
Robert Carter0
Brian Cameron0
Jon Marra0
Date of Patent
August 30, 2011
Patent Application Number
12031090
Date Filed
February 14, 2008
Patent Primary Examiner
Patent abstract
The present locomotive brake control system includes a vacuum relay valve responsive to air brake apply and release signals on the air brake pipe to provide vacuum brake apply and release signals on a vacuum brake pipe. A locomotive brake controller is responsive to the brake apply and release signals on the air brake pipe to control the brake cylinder to apply and release the locomotive brakes in an air mode, and is responsive to the brake apply and release signals on the vacuum brake pipe sensed by a transducer to control the brake cylinder to apply and release the locomotive brakes in a vacuum mode.
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