Bi-stable liquid indicator

Details Bi-stable liquid indicator Bi-stable liquid indicator

1996-05-20

1997-08-26

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

Float

116229, G01F 2338

Patent

active

056612389

ABSTRACT:
A bistable liquid level indicator has a rotatable, indicia bearing member which is balanced to assume a first position under the influence of gravity. A rotatable fluid responsive actuator is magnetically coupled to the indicia bearing member such that a magnetic force, which varies as a function of the fluid induced position of the actuator, is imposed on the indicia bearing member. At a critical level of the fluid, the imposed magnetic force overcomes the gravitational force and the indicia bearing member moves to a second position.

REFERENCES:
patent: 1040127 (1912-10-01), Bonesteel
patent: 1115712 (1914-11-01), Miller
patent: 2920484 (1960-01-01), Reichert
patent: 3420103 (1969-01-01), Peschek
patent: 3820098 (1974-06-01), Demyon et al.
patent: 3934103 (1976-01-01), Walstra
patent: 3964312 (1976-06-01), Sebek
patent: 4512190 (1985-04-01), Sledmere
patent: 5425271 (1995-06-01), Duksa

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