Measuring and testing – Liquid level or depth gauge – Float
Patent
1978-11-07
1980-08-05
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
Float
73307, 733225, 116205, G01F 2308
Patent
active
042155746
ABSTRACT:
An apparatus and method for checking and measuring the momentary value of a variable physical magnitude, such as a volume of liquid in a container or tank, or a temperature, viscosity, or velocity, for example. The invention comprises a transducer free to follow without friction the variations of the physical magnitude, such as for example the level of a liquid fluid in a reservoir, the transducer having a portion of progressively varying cross-section displaceable as a function of the changes in the physical magnitude disposed in alignment with a sensor normally positioned in a reference position out of contact from the transducer. When a checking or measurement is desired, the sensor is displaced in engagement with the varying cross-section portion of the transducer, and the amount of displacement of the sensor from its reference position to its position of engagement with the transducer represents the instantaneous position of the transducer and therefore the momentary value of the magnitude, such as the level of a liquid, to be checked or measured.
REFERENCES:
patent: 1685051 (1928-09-01), Girardet
patent: 1858411 (1932-05-01), Muzzy
patent: 1911555 (1933-05-01), De Orlow
patent: 1925747 (1933-09-01), Caretta
patent: 3138024 (1964-06-01), Pariser et al.
Patalidis Claude A.
Yasich Daniel M.
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