Liquid level sight gauge

Details Liquid level sight gauge Liquid level sight gauge

1984-10-15

1986-05-13

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Sight glass

250577, 350 97, G01F 2302

Patent

active

045878455

ABSTRACT:
A liquid level sight gauge comprises at least one sight tube 10, 11, a scale 12 mounted adjacent such sight tube(s) and periscope means 13, 15, 16 including a reflective member 17 mounted on an optical carriage 16 movable along the sight tube and scale for viewing liquid levels within the sight tube over a predetermined metering range. Each sight tube, the scale, and the optical carriage are mounted within a substantially closed tubular casing. The sight tubes and scale are illuminated at least at the level of the optical carriage.

REFERENCES:
patent: 2714167 (1955-07-01), Herzog
patent: 3238839 (1966-03-01), Day, Jr.
patent: 3314292 (1967-04-01), Schulte et al.
patent: 3358510 (1967-12-01), Hoffmann et al.
patent: 4158134 (1979-06-01), Martin et al.
patent: 4345468 (1982-08-01), Jackson
patent: 4410020 (1983-10-01), Lorenz
patent: 4443106 (1984-04-01), Yasuda et al.
patent: 4508970 (1985-04-01), Ackerman

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