Measuring and testing – Liquid level or depth gauge – Float
Patent
1988-08-25
1990-01-02
Shoap, Allan N.
Measuring and testing
Liquid level or depth gauge
Float
73305, 73319, 116228, 116278, G01F 2330
Patent
active
048904937
ABSTRACT:
An automatic reading gauge is provided and consists of an elongated flexible measuring member having a scale thereon with a float affixed to one end and a counterweight at other end. The measuring member is disposed within an O-shaped body having a weep hole, an air check valve and a top sight area. When the body is placed through a filler hole to extend to bottom of a tank, the amount of fluid within the tank will be indicated at the top sight area.
REFERENCES:
patent: 572321 (1896-12-01), Vleck
patent: 675307 (1901-05-01), Voltzow et al.
patent: 1767641 (1930-06-01), Anschicks
patent: 1866902 (1932-07-01), Overmire
patent: 4092861 (1978-06-01), Fling
patent: 4147060 (1979-04-01), Fling et al.
patent: 4154103 (1979-05-01), Fling
patent: 4709653 (1987-12-01), Salomon
Johnson Robert M.
Spector George
Hohenshell Jeffrey J.
Shoap Allan N.
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