Apparatus for measuring the level of a liquid, in particular a f

Details Apparatus for measuring the level of a liquid, in particular a f Apparatus for measuring the level of a liquid, in particular a f

1987-11-02

1989-04-18

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

Float

73313, 73DIG5, G01F 2362

Patent

active

048215708

ABSTRACT:
The apparatus comprises a vertical elongate plunger (2) which is freely suspended by its top end from a thread (3) so as to be partially immersed in the liquid. A housing (1') mounted at the top of the recipient houses a pulley (4) capable of rotating through not more than one-fourth of a turn, said pulley serving to wind the plunger suspension thread and being fixed to a counterweight (5) so that the angular position of the pulley and counterweight assembly varies as a function of the depth of plunger immersion, and consequently as a function of the depth of liquid in the recipient. A mechanism is provided for measuring and digitizing the angular position of the pulley and includes, in particular, a code disk (11) outside the housing (1') and a magnetic coupling for transmitting motion from the pulley (4) to the code disk (11) through said housing.

REFERENCES:
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patent: 3212333 (1965-10-01), Tayama
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patent: 4426788 (1984-01-01), Hirose et al.

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