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:
Mar. 16, 1982
Filed:
Feb. 26, 1980
Clifford J Bell, Mt. Pleasant, IN (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
Fluid-cooled electrical apparatus having a new and improved pump for circulating the fluid within the apparatus. The pump has a motor portion in fluid communication with a pump portion, non-electrically conductive bearings supporting a common shaft between the two portions, and means for detecting shaft displacement due to bearing wear. Electrically conductive contact rings disposed within recesses in the bearings' sleeve and thrust surfaces complete an electric connection with the shaft in the event of bearing wear. Circuit means connected to the electrically conductive contact rings deenergizes the motor when the contact rings detect predetermined bearing wear.