Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1975-04-15
1976-12-07
Queisser, Richard C.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
73432R, 252408, 260 336EP, G01K 1302
Patent
active
039954897
ABSTRACT:
A composition is disclosed of a malonic acid derivative, a resinous carrier, and a solvent. The composition is applied to a portion of an electrical apparatus which is exposed to a gas stream. The solvent in the composition is evaporated to produce a thermoparticulating coating. When the electrical apparatus overheats the malonic acid derivative in the coating forms particles in the gas stream which are detected by a monitor.
REFERENCES:
patent: 3427880 (1969-02-01), Grobel et al.
patent: 3807218 (1974-04-01), Carson et al.
Chemistry of Carbon Compounds, Edited by E. H. Rodd, vol. 1B, 1952 edition, pp. 961, 962.
Phillips David C.
Smith James D. B.
Appleman John S.
Fuerle R. D.
Queisser Richard C.
Westinghouse Electric Corporation
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