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:
Mar. 02, 2004
Filed:
Jan. 07, 2003
Applicant:
Inventors:
John H. Corvin, Greer, SC (US);
Richard J. Mazur, Greer, SC (US);
James A. Wood, Spartanburg, SC (US);
Assignee:
Westinghouse Air Brake Technologies Corporation, Wilmerding, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T 8/00 ;
U.S. Cl.
CPC ...
B60T 8/00 ;
Abstract
The time reset safety timer circuit eliminates approximately half of the external interfaces of the prior art safety timers. The prior art safety timers depend on vehicle axle speeds, brake indications, and/or trainline signals to initiate a safety timer reset. The time reset safety timer circuit in the present invention uses only internal information to initiate a safety timer reset. This simplifies the circuitry of the time reset safety timer circuit, which improves the reliability.