Liquid level and sampling gauge

Details Liquid level and sampling gauge Liquid level and sampling gauge

1990-04-25

1991-12-17

Noland, Tom

Measuring and testing

Sampler, sample handling, etc.

Capture device

7386386, 33717, 33723, G01N 112, G01F 2304

Patent

active

050726250

ABSTRACT:
A liquid level and sampling gauge is shown which includes a stick having a vertical face with a groove formed therein. A transparent sample tube is mounted in the groove and has a bottom opening. A rigid rod is located within the sample tube and has a lower end and an upper end. A valve member is carried on the rod lower end and includes an O-ring which contacts a valve seat provided in the stick lower end when the valve member is moved between an open position which admits liquid to the sample tube and a closed position. A valve operator at the stick upper end moves the valve member between the open and closed positions.

REFERENCES:
patent: 397961 (1889-02-01), Bergmann
patent: 1150600 (1915-08-01), Jay, Jr.
patent: 2213026 (1940-08-01), Hoffman
patent: 2544262 (1951-03-01), Hall
patent: 2580711 (1952-01-01), Weidinger
patent: 3169322 (1965-02-01), Milo
patent: 3371538 (1968-03-01), Bagby
patent: 3390463 (1968-07-01), Hirsch
patent: 3438263 (1969-04-01), Cohen et al.
patent: 4292739 (1981-10-01), Dobbins
patent: 4346519 (1982-08-01), Milo
patent: 4372382 (1983-02-01), Rooney et al.
patent: 4583293 (1986-04-01), Smith
patent: 4760747 (1988-08-01), Fackler

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