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:
Oct. 14, 2003
Filed:
Dec. 15, 1999
Applicant:
Inventors:
Roland S. Moore, Taylors, SC (US);
Paul E. Jamieson, Greer, SC (US);
Assignee:
Westinghouse Air Brake Co, Wilmerding, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 6/600 ;
U.S. Cl.
CPC ...
F16D 6/600 ;
Abstract
A brake disc wear indicator comprising a brake disc rotor having two opposed braking surfaces for engaging opposed brake friction pads, and at least one hole provided in the rotor at a location behind a braking surface and at a predetermined depth and distance from the braking surface such that the hole is originally invisible by the presence of brake rotor material but becomes visible when brake rotor material is worn away to the extent that the hole becomes exposed and visible.