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:
Sep. 17, 2019
Filed:
Apr. 16, 2018
Intermountain Electronics, Inc., Price, UT (US);
Dale V. Curtis, Castle Dale, UT (US);
Robin Vice, Phoenix, AZ (US);
Intermountain Electronics, Inc., Price, UT (US);
Abstract
An apparatus for phase operation indication includes a phase filter that filters a ground monitor signal from one or more phase conductors supplying power to a load and injects the ground monitor signal in an equipment grounding conductor run with the one or more phase conductors or receives the ground monitor signal from a signal generator and injects the ground monitor signal on the one or more phase conductors. The ground monitor signal includes a test frequency different than a line frequency of power supplied to the load. The apparatus includes at least one indicator circuit connected to at least one of the one or more phase conductors. An indicator circuit of a phase conductor provides a visual flashing signal in response to a voltage being present on the phase conductor, the at least one indicator circuit located at the phase filter.