The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2007
Filed:
Sep. 14, 2005
John M. Reynolds, Copenhagen, NY (US);
D. Mark Petitt, LaFargeville, NY (US);
Richard J. Teifke, Mexico, NY (US);
Scott E. Margeson, Watertown, NY (US);
Kevin B. Root, Black River, NY (US);
John M. Reynolds, Copenhagen, NY (US);
D. Mark Petitt, LaFargeville, NY (US);
Richard J. Teifke, Mexico, NY (US);
Scott E. Margeson, Watertown, NY (US);
Kevin B. Root, Black River, NY (US);
New York Air Brake Corporation, Watertown, NY (US);
Abstract
A brake controller for a locomotive includes a train brake pipe, a locomotive brake pipe, a brake cylinder, a control valve and a relay valve. The first control input of the relay valve is selectively connected to one of the output of the control valve and the locomotive brake pipe; and the second control input of the relay valve is selectively connected to the locomotive brake pipe when the control valve output is a release signal. A first electro-pneumatic valve, when activated, causes the control valve to be a release signal. An electronic controller is connected to a first pressure transducer for the locomotive brake pipe, a lead/trail mode switch and the first electro-pneumatic valve; and activates the electro-pneumatic valve for brake release pressures in the locomotive brake pipe when the mode switch is in the trail mode.