Liquid level indicator and flow measuring device

Details Liquid level indicator and flow measuring device Liquid level indicator and flow measuring device

1975-07-07

1977-09-06

Martin, Jr., William D.

Geometrical instruments

Area integrators

Electrical

G01B 518

Patent

active

040458768

ABSTRACT:
A liquid level indicator and flow measuring device comprising a portable housing adapted to be removably mounted in a man-hole and which has a liquid level sensing probe extending downwardly therefrom. The probe is periodically lowered, by the control means within the housing, until electrical contact with the liquid is achieved. The probe is then automatically raised a few inches above the liquid level for a predetermined length of time after which the probe is again lowered until the liquid level is electrically contacted. The movements of the probe are recorded on a clock device recording graph. Means is provided for switching the control apparatus to accommodate pipes having 0 to 12 inch diameters and 0 to 24 inch diameters.

REFERENCES:
patent: 2906026 (1959-09-01), Hanes
patent: 3140609 (1964-07-01), Mayes
patent: 3169400 (1965-02-01), Kiramidjian
patent: 3781624 (1973-12-01), Tullis

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