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. 07, 2017
Filed:
Apr. 13, 2015
Applicant:
Wood Stone Corporation, Bellingham, WA (US);
Inventors:
Mark L. Stephenson, Bellingham, WA (US);
Aaron Michelle, Bellingham, WA (US);
Assignee:
WOOD STONE CORPORATION, Bellingham, WA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); G01R 31/42 (2006.01); G01R 29/027 (2006.01);
U.S. Cl.
CPC ...
G01R 31/025 (2013.01); G01R 31/42 (2013.01); G01R 29/027 (2013.01);
Abstract
A ground check system for checking a ground conductor of a power supply comprising at least one line conductor comprises a pulse generator and a compare circuit. The pulse generator applies a test signal to a test circuit formed at least in part by the ground conductor and the at least one line conductor when an AC voltage on the at least one line conductor is approximately zero volts. The compare circuit compares the test signal passing through the test circuit with at least one test criteria indicative of an unacceptable ground.