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:
Nov. 11, 2008
Filed:
Sep. 15, 2005
Phillip D. Young, San Diego, CA (US);
Dirk Fichtner, San Diego, CA (US);
Phillip D. Young, San Diego, CA (US);
Dirk Fichtner, San Diego, CA (US);
Hamilton Sundstrand Corporation, Rockford, IL (US);
Abstract
A bearing failure detection system includes a thermal protector switch circuit having a wear strip located within an interior of a motor stator. In response to bearing failure or wear above a predetermined magnitude, the motor rotor will shift off its axis of rotation and wear away the wear strip or break the electrically conducting material of the wear strip and activate the stator thermal protector switch circuit and shut down the electric motor. The wear strips assist the thermal protector switch circuit in the identification of a bearing failure and the light rubbing that results therefrom prior to the generation of an electrical burning smell that may otherwise occur after a prolonged period of rubbing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile