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:
Feb. 21, 1978
Filed:
Oct. 12, 1976
Mark Otho Bergman, La Crosse, WI (US);
Paul Clement Rentmeester, La Crosse, WI (US);
The Trane Company, La Crosse, WI (US);
Abstract
The disclosed invention relates to a combination temperature and failure indicating probe for use in a bearing. In the preferred embodiment, a negative coefficient thermistor is disposed within a tubular, electrically conductive, enclosure. The enclosure is surrounded by an electrically insulating sleeve for mounting within a bearing. Electrical conductors connected to the thermistor and to the enclosure itself lead to a resistance sensor which detects an abnormal resistance due to either: 1. an excess temperature at the bearing; or 2. contact by a metallic portion of the bearing with the enclosure due to bearing wear or failure.