Delayed action liquid level sensing apparatus

Details Delayed action liquid level sensing apparatus Delayed action liquid level sensing apparatus

1984-12-05

1986-12-23

Tolin, G. P.

Electricity: circuit makers and breakers

Float

Float and pressure

73313, 340624, 307118, H01H 3518

Patent

active

046313753

ABSTRACT:
An improved low liquid level float control apparatus particularly adapted for use in vessels or tanks containing a fluid of the type utilized in liquid vending machines is disclosed. An electronic control unit has a probe section extending downwardly therefrom containing a reed switch, which is activated by the passage of a first magnet located in the lower portion of a float vertically along the probe section. A second magnet is secured along the upper portion of the float. Metal stops are provided along the probe section to determine the range and movement of the float and to effect a time delay, thus reducing the possibility of intermittent on-off operation of associated pump elements.

REFERENCES:
patent: 3437771 (1969-04-01), Nusbaum
patent: 4329550 (1982-05-01), Verley

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