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:
Oct. 14, 2003
Filed:
Apr. 08, 1999
Applicant:
Inventor:
George A. Cavigelli, Lexington, MA (US);
Assignee:
Doble Engineering Company, Watertown, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 3/114 ; G01R 3/128 ;
U.S. Cl.
CPC ...
G01R 3/114 ; G01R 3/128 ;
Abstract
Monitoring a leakage current from an isolator for a high voltage conductor to ground includes directing the leakage current through a primary wire inductively coupled to a secondary winding energizing an amplifier.