Measuring and testing – Liquid level or depth gauge – With illumination
Patent
1988-01-28
1989-07-18
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
With illumination
33723, 250577, G01F 2304
Patent
active
048481491
ABSTRACT:
A device for measuring the level of liquid fuel in a tank of the type in which one marks the hollow distance between the surface of the liquid and a horizontal reference plane made near an opening that gives access to the tank. The device includes a depth gauge containing a reference base, a mobile rule and means for measuring the relative displacement of the rule relative to the base; means for support against the reference plane of the tank integral with the reference base of the gauge; an optical probe containing static means for detection of liquid at a predetermined level and means for display that can indicate the presence or absence of liquid at this predetermined level, this optical probe being integral with the mobile rule of the gauge.
REFERENCES:
patent: 2213026 (1940-08-01), Hoffman
patent: 2326111 (1943-08-01), Zachos
patent: 3141094 (1964-07-01), Strickler
patent: 4077129 (1978-03-01), Nishikata
patent: 4410020 (1983-10-01), Lorenz
patent: 4587845 (1986-05-01), Varga
Catalog entry (p. 185), from Mitutoyo/MTI Corporation, Paramus, New Jersey.
Fiorentino Jean-Pierre
Rougerie Claude
Shell Oil Company
Smith Mark A.
Yasich Daniel M.
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