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:
Apr. 17, 2001
Filed:
Nov. 30, 1998
Raymond K. J. Ong, Peterborough, CA;
James H. Dymond, Peterborough, CA;
Raymond D. Findlay, Ancaster, CA;
General Electric Canada Inc, Mississauga, CA;
Abstract
Some dynamoelectric machines develop shaft E.M.F.'s during operation which lead to circulation currents in the shaft of the machine. The shaft current will attempt to flow through the bearings of the machine, unless some action is taken to prevent or limit said current flow. This invention minimizes the circulation of rotor shaft currents by providing a return path for the shaft current through an insulated conductor located in the center of the shaft of the machine. The insulated conductor is electrically attached to the shaft at the ends of the conductor. The conductor may extend the length of the shaft.