Measuring and testing – Gas content of a liquid or a solid – By vibration
Patent
1977-05-31
1978-06-20
Goldstein, Herbert
Measuring and testing
Gas content of a liquid or a solid
By vibration
35 19R, 35 50, G01N 2518, G09B 2316
Patent
active
040954544
ABSTRACT:
A device for demonstrating the relative effectiveness of various types of thermal insulation having a plenum chamber, at least two cells each communicating with the plenum chamber and receiving a quantity of insulation therein, and a separate after chamber communicating with each cell and the atmosphere with a thermometer received therein. A portion of a stream of heated air under pressure discharged into the plenum chamber passes through each cell and its associated after chamber and is discharged into the atmosphere. The differences in the temperature, as indicated by the thermometers, of the stream of air passing through each after chamber provide a visual indication of the relative effectiveness of the insulation in each cell and such differences in temperature can be physically sensed by a person who successively places a hand in the stream of air discharged to the atmosphere from each after chamber.
REFERENCES:
patent: 2296815 (1942-09-01), Evans
patent: 2326194 (1943-08-01), Barton
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