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. 23, 2006
Filed:
Apr. 15, 2004
Applicant:
Peter Alexander Carruthers, Ithaca, NY (US);
Inventor:
Peter Alexander Carruthers, Ithaca, NY (US);
Assignee:
BAE Systems Controls, Inc., Johnson City, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for determining the nature of a ground fault in a floating direct voltage load powering context includes measuring the load voltage and the current at a nominal balance point, both before and after closing a circuit to the load. The fault resistance and the fault voltage are determined as the solution to an equation in two unknowns given the conditions before and after application of load voltage or at least precharge.