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:
Jan. 12, 2016
Filed:
Apr. 01, 2014
Applicant:
Tektronix, Inc., Beaverton, OR (US);
Inventors:
Michael S. Overton, Beaverton, OR (US);
Robert Davies, Portland, OR (US);
Thomas Chabreck, Tigard, OR (US);
Assignee:
TEKTRONIX, INC., Beaverton, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); H01H 47/00 (2006.01); G08B 21/18 (2006.01); G01R 31/327 (2006.01);
U.S. Cl.
CPC ...
H01H 47/002 (2013.01); G01R 31/3278 (2013.01); G08B 21/185 (2013.01);
Abstract
A relay fault detection and correction system includes a signal detector structured to measure primary and secondary signals, and generates a fault output signal if the signals appear to be unterminated due to a relay not connecting the signals to the loads. A cycle circuit is structured to cause a relay controller to cycle a potentially under-performing relay between its states a number of times after the signal detector generates the fault output.