Level sensor

Details Level sensor Level sensor

1974-03-07

1976-02-03

Queisser, Richard C.

Measuring and testing

Liquid level or depth gauge

Float

331266, 73311, 73321, 340347P, G01F 2312

Patent

active

039357414

ABSTRACT:
A storage tank liquid level sensor for indicating levels of two immiscible liquids in the tank wherein a first magnet is carried by a float on top of one liquid and a second magnet is carried by a float on top of the other liquid, the first magnet operating a switch to indicate when the one liquid reaches a predetermined level and the second magnet moving a coded tape with respect to a read head in accordance with changes in the level of the other liquid, a transmitter to transmit data from the read head, a receiver for such data, an arithmetic logic unit to convert the data to binary coded decimals, a memory unit for storage of BCD data, and a display unit for selectively addressing the computer and displaying selected data.

REFERENCES:
patent: 1396155 (1921-11-01), Bartlett et al.
patent: 2899751 (1959-08-01), Mayes
patent: 3078715 (1963-02-01), Mayes
patent: 3090232 (1963-05-01), Mayes
patent: 3140609 (1964-07-01), Mayes
patent: 3283578 (1966-11-01), Moore
patent: 3555905 (1971-01-01), George
patent: 3558861 (1971-01-01), Collins et al.
patent: 3633193 (1972-01-01), Milo

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