Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1978-11-30
1980-03-04
Woodiel, Donald O.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
73190H, G01K 560
Patent
active
041910532
ABSTRACT:
A differential temperature detector comprises two springs made of a shape memory effect alloy. The springs are oppositely stressed and are coupled together in stressed condition. When the springs are subject to the same temperature, no movement occurs when that temperature changes, but when the springs are subject to different temperatures, movement occurs dependent on the temperature difference.
REFERENCES:
patent: 3254180 (1966-05-01), Flanagan
patent: 3403238 (1968-09-01), Buehler et al.
patent: 3594674 (1971-07-01), Wilson
Hart William B.
Williams Reginald T.
Delta Materials Research Limited
Woodiel Donald O.
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