Silo level indicating system

Details Silo level indicating system Silo level indicating system

1976-07-29

1978-01-03

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

Thermal type

340246, G01F 2322

Patent

active

040659674

ABSTRACT:
The silo level indicating system includes a plurality of temperature indicating sensor units placed on the outside wall of a silo at vertically spaced positions. Each sensor unit and an adjacent portion of the surrounding sidewall is thermally insulated from the atmosphere so that a sensor unit is responsive to the temperature on the inside of the silo at the thermally insulated wall portion. The air within the silo above the level of material is at the same temperature. Thus, in a comparison of the temperature within the silo opposite each sensor unit to that of a reference sensor unit situated at the top of the silo, so as to be above the uppermost level of the material in the silo, a temperature differential between the reference sensor unit and a compared sensor unit indicates the presence of material at or above the compared sensor unit.

REFERENCES:
patent: 2753713 (1956-07-01), Mabey
patent: 2766406 (1956-10-01), Schwarzkopf
patent: 2846884 (1958-08-01), Daly
patent: 3740740 (1973-06-01), Milo
patent: 3983751 (1976-10-01), Cipriano
patent: 3995416 (1976-05-01), Waiwood

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