Piston detector switch

Details Piston detector switch Piston detector switch

1978-03-13

1979-09-18

Tolin, Gerald P.

Electricity: circuit makers and breakers

Fluid pressure

Piston

73 3, 200 6141, 200 819M, H01H 3538

Patent

active

041684133

ABSTRACT:
A piston detector switch adapted to be positioned on a pipe having an orifice in the wall thereof which may be briefly described as comprising a plate securable to the pipe having a bore extending therethrough in open communication with the pipe orifice, a valve seat positioned in the bore adjacent the pipe surface, a ball loosely positioned in the bore, having a diameter such that a portion of the ball normally protrudes within the pipe interior when seated, a housing sealably secured to the plate having a duct extending therethrough in open communication with the bore, and magnetically responsive switch means disposed in said duct for signalling movement of the ball from the seated position and for preventing fluid leakage from said duct.

REFERENCES:
patent: 3274351 (1966-09-01), Halpine
patent: 3421124 (1969-01-01), Kidd
patent: 3478717 (1969-11-01), Kidd
patent: 4079619 (1978-03-01), Dobesh

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