Patent ID: 6635836
Filing Date: 2003-10-21
Classification: H01H,Y10T

Abstract:
A fluid flow indicator assembly for monitoring the flow of pressurized fluid through a conduit, said assembly comprising a self-contained unit including a housing having a longitudinal through bore extending from a fluid inlet end to a fluid outlet end of said housing;said housing containing an electrical indicator circuit comprising a light emitting diode, a first and a second lead wire, each of said lead wires being axially spaced apart and each extending transversely across said longitudinal through bore, a battery power source for illuminating said diode and being, supported within said housing and being connected to said first lead wire, said second lead wire being connected to said diode, and a normally open electrical switch comprising a fluid pressure operated movable contact, said movable contact being axially movable within said bore and arranged to electrically contact said first lead wire responsive to fluid pressure exerted against said movable contact, and electrically conducting biasing means supporting and restraining said movable contact against movement towards said second lead wire extending across said bore.