Differential displacement thermosensing device

Details Differential displacement thermosensing device Differential displacement thermosensing device

1974-07-08

1976-03-09

Queisser, Richard C.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

291955, 733631, 337394, G01K 550

Patent

active

039423808

ABSTRACT:
A rod and tube thermosensing device adapted for high temperature use has a first rod member comprising a rod of refractory metal having a metal cladding thereon which protects the refractory metal against excessive oxidation and which cooperates with the rod of refractory metal in providing the first member with a relatively low effective coefficient of thermal expansion. This first rod member is coaxially disposed in a tube of a metal of relatively higher coefficient of thermal expansion and has one end of the rod member secured to a corresponding end of the tube, whereby the opposite ends of the first rod member and tube are free to move relative to each as an indication of the temperature to which the device is subjected.

REFERENCES:
patent: 1939085 (1933-12-01), Scott
patent: 2640129 (1953-05-01), Starbird
patent: 2697130 (1954-12-01), Korbelak
patent: 3004123 (1961-10-01), Cannon
patent: 3116641 (1964-01-01), Parks
patent: 3282108 (1966-11-01), Bordeaux et al.

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