Patent ID: 9111425
Filing Date: 2015-08-18
Classification: G08B

Abstract:
1. An indicator device comprising: a housing comprising at least one wall forming a bore therein, wherein the at least one wall comprises an outer surface that is configured to be disposed within an aperture in an enclosure wall of an electrical enclosure; and an indicator placed in the bore, wherein the indicator is retained in the bore temporarily by a latch held in place by and coupled to a spring and a pin, the spring having a central axis extending therethrough, wherein the latch is pivotable about the central axis, wherein at least a portion of the indicator exits the housing and is no longer retained by the latch upon an increase in temperature or pressure within the electrical enclosure, wherein the electrical enclosure is located in a hazardous environment and contains at least one piece of electrical equipment, wherein the at least one piece of electrical equipment is positioned within a cavity formed by the enclosure wall of the electrical enclosure, and wherein at least a portion of the housing is disposed in the cavity.