Liquid level indicator switch

Details Liquid level indicator switch Liquid level indicator switch

1985-01-30

1988-05-31

Tolin, G. P.

Electricity: circuit makers and breakers

Float

Float and pressure

73308, 340624, H01H 3518, H01H 900

Patent

active

047483008

ABSTRACT:
A liquid level indication device including a reed switch activating assembly having a magnet moveable in response to a change in the level of the liquid to effect the closing of the reed switch contact elements when a designated liquid level is reached. The device has a built-in time delay feature to prevent the premature actuation of the reed switch by the magnet should the liquid level in the container only temporarily drop.

REFERENCES:
patent: 2885507 (1959-05-01), Holman
patent: 2953659 (1960-09-01), Edwards
patent: 3782501 (1974-01-01), Pagella
patent: 4103265 (1978-07-01), Siiberg
patent: 4377809 (1983-03-01), Lawford
patent: 4487021 (1984-12-01), Arakawa

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