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. 21, 1992
Filed:
Dec. 07, 1990
Applicant:
Inventor:
Elmer T Skantar, East Pittsburgh, PA (US);
Assignee:
Westinghouse Air Brake Company, Wilmerding, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61L / ; B61L / ;
U.S. Cl.
CPC ...
246107 ; 246185 ;
Abstract
A system for positively determining that an engineman has actually activated a manual whistle valve to sound a pneumatic warning horn on a railway vehicle having a low pressure and high pressure sensing apparatus for conveying signals to an event recorder for monitoring and recording the pressure of an air supply source and the sounding of the pneumatic warning device.
Skantar, Elmer. (1992). Arrangement for positively determining the actual sounding of a warning (U.S. Patent No. 5131612). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5131612
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile