Calibrating gas generator

Details Calibrating gas generator Calibrating gas generator

1983-03-15

1984-10-02

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

436 9, G01N 3100

Patent

active

044740484

ABSTRACT:
A calibrating gas generator comprises two series connected solution tanks filled with an aqueous ethanol solution which are connected together so that a pump may direct air so that it successively bubbles through the ethanol solution in each tank and exit through a test nozzle connected to the last tank. Means are provided for maintaining a temperature in the first tank of 37.degree. C. and in the second solution tank of 34.degree. C. In accordance with the method of the invention, the testing reliability of the calibrating gas is extended by directing a gas such as air so that it successively bubbles through ethanol solutions in first and second tanks and by maintaining the solution in the first tank at 37.degree. C. and the solution in the second tank at 34.degree. C.

REFERENCES:
patent: 3847551 (1974-11-01), Huston
patent: 3854319 (1974-12-01), Burroughs
patent: 3885414 (1975-05-01), Reville
patent: 4003240 (1977-01-01), Durbin
patent: 4069701 (1978-01-01), Baldauf
patent: 4407152 (1983-10-01), Guth

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