Geometrical instruments – Area integrators – Electrical
Patent
1980-09-02
1982-08-31
Martin, Jr., William D.
Geometrical instruments
Area integrators
Electrical
7386463, G01F 2304
Patent
active
043465196
ABSTRACT:
The gauge includes a calibrated, elongated stick or rod to which is affixed an elongated, transparent sampler tube. A bottom valve is operable within the sampler tube and is capable of direct opening by contacting the bottom of the tank with the valve stem. The valve is also remotely operable through a cable of sufficient length to extend upwardly exteriorly of the tank for manual operation above grade level. The transparent tube extends from the bottom of the gauge stick and may be relatively short for sampling possible water contamination at the bottom of a tank or may extend several feet in length to allow core sampling throughout the entire height of the tank contents.
REFERENCES:
patent: 1296794 (1919-03-01), Haggstrom
patent: 1539790 (1925-05-01), Young
patent: 1544206 (1925-06-01), Beard
patent: 1606104 (1926-11-01), Schlueter et al.
patent: 1638333 (1927-08-01), Groetken
patent: 1947592 (1934-02-01), Haller
patent: 2215594 (1940-09-01), Parsons
patent: 2544262 (1951-03-01), Hall
patent: 2577629 (1951-12-01), Quist
patent: 2674129 (1954-04-01), Cannell
patent: 2701919 (1955-02-01), Anderson
patent: 2832145 (1958-04-01), Kious
patent: 3169322 (1965-02-01), Milo
patent: 3442017 (1969-05-01), Frenkel
Universal Valve Co., publication entitled "Water Level Gauge Sampler".
Lab-Line Instruments, Inc., catalog, pp. 146 and 147, showing water samplers.
W. L. Walker Co., Inc. three page brochure entitled "Tulsa Oil Thief".
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