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.

Date of Patent:
Dec. 29, 2020

Filed:

Jun. 23, 2020
Applicant:

Tower Manufacturing Corporation, Providence, RI (US);

Inventors:

Victor V Aromin, West Warwick, RI (US);

Louis J. Shatkin, Warwick, RI (US);

Assignee:

TOWER MANUFACTURING CORPORATION, Providence, RI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/52 (2020.01); G01R 31/58 (2020.01); H02H 3/00 (2006.01); H02H 3/08 (2006.01); H01H 75/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/52 (2020.01); G01R 31/58 (2020.01); H02H 3/00 (2013.01); H01H 75/00 (2013.01); H02H 3/08 (2013.01);
Abstract

A Testguard circuit with auto-monitoring and end-of-life circuitry is provided. The Testguard circuit interrupts the flow of current through a pair of lines, wherein one of the pair of lines extends between a line input and a line output and the other line extends between a neutral input and a neutral output. The Testguard circuit includes a monitoring module for detecting an end of life condition. The monitoring module includes a simulated ground fault generator for simulating a ground fault; an auto-monitoring logic module; a relay synchronized switch; and an end-of-life switch for disabling the Testguard circuit if certain Testguard component failures are detected.


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