Specific gravity meter for aircraft de-icing equipment

Details Specific gravity meter for aircraft de-icing equipment Specific gravity meter for aircraft de-icing equipment

1979-04-06

1981-06-30

Swisher, S. Clement

Measuring and testing

Specific gravity or density of liquid or solid

Float operated indicator

G01N 916

Patent

active

042755930

ABSTRACT:
Apparatus is disclosed for determining the proportion of ethylene glycol in an aqueous solution that is used to remove as well as prevent the accumulation of ice and snow on commercial aircraft, the apparatus being used in de-icing equipment of the type which has a self-propelled vehicle, a large capacity heater which heats water carried on the vehicle, a proportioning system for mixing the water and ethylene glycol and pumping means for pumping the solution containing the desired proportion of ethylene glycol under high pressure through a nozzle which is directed toward the aircraft. The apparatus can determine the percentage of ethylene glycol that is contained in the aqueous solution at any time during the operation of the de-icing equipment.

REFERENCES:
patent: 288402 (1883-11-01), Borodoulin
patent: 2445255 (1948-07-01), Younkin
patent: 3612075 (1971-11-01), Cook

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