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:
Dec. 01, 2015
Filed:
Aug. 13, 2013
Applicant:
Peter Gregar, Chesterton, IN (US);
Inventor:
Peter Gregar, Chesterton, IN (US);
Assignee:
WABTEC Holding Corp, Wilmerding, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61H 13/04 (2006.01); G01N 3/08 (2006.01);
U.S. Cl.
CPC ...
G01N 3/08 (2013.01); B61H 13/04 (2013.01);
Abstract
A device for indirectly sensing tension of a chain in a railroad handbrake includes an elongated bore formed through a holding pawl of the handbrake, sensor target attached to the holding pawl and a sensor mounted in close proximity to an upper end of the housing so as to sense the sensor target. The ratchet wheel of the handbrake positions the sensor target for operative sensing alignment with the sensor during at least partial handbrake application. A biasing member moves the sensor target away from the operative sensing alignment during handbrake release.