Measuring and testing – Liquid level or depth gauge – Exploring tube
Patent
1980-06-13
1982-06-22
Yasich, Daniel M.
Measuring and testing
Liquid level or depth gauge
Exploring tube
331267R, 73323, G01F 2304
Patent
active
043356060
ABSTRACT:
An apparatus for measuring the level of at least one fluid includes an elongated transparent tubular member open at both ends, one of the ends being vertically insertable into the fluid to a reference point below the fluid surface to establish a column of the fluid in the tubular member having a length generally equal to the distance between the reference point and the fluid surface, a stiff tether slightly longer in length than the tubular member and threaded therethrough, a plug connected to one end of the tether for closing at least the inserted end of the tubular member prior to withdrawing it from the fluid to contain the column of the fluid in the tubular member for measurement after the tubular member is withdrawn from the fluid, and a grip connected to the other end of the cable for remotely controlling the plug to close the inserted end of the tubular member. In the process of measuring the fluid level, the column of the fluid can be viewed through the tubular member to check for abnormalities in the fluid and the presence or absence of other immiscible fluids.
REFERENCES:
patent: 1501407 (1924-07-01), Le Clair
patent: 2451704 (1948-10-01), Wood
patent: 2660058 (1953-11-01), Vogt
patent: 3055217 (1962-09-01), Vogt
patent: 3662470 (1972-05-01), Sasgen
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