Thermal measuring and testing – Temperature measurement – Mechanical
Patent
1984-12-24
1985-09-17
Stephan, Steven L.
Thermal measuring and testing
Temperature measurement
Mechanical
60527, 337393, 236101R, 524546, G01K 548, H01H 3746
Patent
active
045417350
ABSTRACT:
A thermal sensing element containing a heat responsive material having a very high negative coefficient of thermal expansion. The heat responsive material contained therein is a methanol saturated copolymer of hexafluoropropylene and vinylidene fluoride. This thermal sensing element can detect minute temperature changes and can be packaged in a compact container for use in applications where space is limited.
REFERENCES:
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patent: 2990716 (1961-07-01), Butts
patent: 3040581 (1962-06-01), Grayson
patent: 3823560 (1974-07-01), Hansen
patent: 4253304 (1981-03-01), Lamb et al.
patent: 4421878 (1983-12-01), Close
patent: 4487878 (1984-12-01), Vasta
"Elastomer-Gasoline Blends Interactions I. Effects of Methanol-Gasoline Mixtures on Elastomers", Ismat A. Abu-Isa, Journal of Rubber Chemistry and Technology, vol. 56, No. 1, 3-4-1983, pp. 135-168.
General Motors Corporation
Stephan Steven L.
Tung Randy W.
Will Thomas B.
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