Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1978-06-22
1979-12-25
Swisher, S. Clement
Measuring and testing
Gas analysis
Moisture content or vapor pressure
G01K 532
Patent
active
041799283
ABSTRACT:
A push type thermal device having a resilient stem seat provided with an opening in one end thereof and receiving an actuating stem therein that is adapted to reciprocate in a longitudinal direction in the opening in response to the thermal expansion and contraction of a charge of material in the device and only operatively acting on the other end of the stem seat in the aforementioned longitudinal direction, the stem seat having means for substantially preventing wadding of the stem seat during the stroking of the stem by the expansion of the charge of material.
REFERENCES:
patent: 2806375 (1957-09-01), Wood
patent: 3046787 (1962-07-01), Wagner
patent: 3719085 (1963-03-01), Sliger
Robertshaw Controls Company
Swisher S. Clement
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