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:
May. 01, 1979
Filed:
Sep. 23, 1977
Applicant:
Inventor:
William G Craig, Munhall, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; G01R / ;
U.S. Cl.
CPC ...
324 54 ;
Abstract
Insulated multiphase electrical windings are tested by applying to both ends of one phase, a positive DC voltage for a fixed period of time and simultaneously to another phase an equal negative DC voltage is applied for the same fixed period of time and all remaining phases are grounded. The application of the positive and negative DC voltages is repeated until each phase of the multiphase windings has been tested with both a positive and negative voltage.
Craig, William. (1979). Two phase high voltage insulation testing of multiphase windings (U.S. Patent No. 4152640). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4152640
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile