Tank-level alarm control system

Details Tank-level alarm control system Tank-level alarm control system

1989-05-05

1990-05-15

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Float

73DIG5, 200 84C, 340624, G01F 2362, H01H 3518

Patent

active

049247034

ABSTRACT:
The gauge has an outer tube sealed at its lower end and adapted for attachment to the top wall of the tank. The gauge also has an inner tube axially movable within the outer tube. A float encircles the outer tube. Magnets respectively attach to the float and to the lower end of the inner tube, whereby a rising liquid causes the inner tube to rise as well. When the liquid level reaches a predetermined high level, a pencil-type magnet mounted within the inner tube operates a switch in an alarm box mounted in the top of the outer tube.

REFERENCES:
patent: 3815416 (1974-06-01), Portis
patent: 3942526 (1976-03-01), Wilder et al.
patent: 3993941 (1976-11-01), McGoldrick
patent: 4142079 (1979-02-01), Bachman
patent: 4321590 (1982-03-01), Ishikawa et al.
patent: 4480469 (1984-11-01), Tice

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