Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1976-12-30
1978-05-16
Yasich, Daniel M.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
733683, 99344, G01K 544
Patent
active
040892220
ABSTRACT:
There is disclosed a device for telemetry of the temperature of a mass undergoing temperature change, typically of a comestible being heated in an oven, and the like. The device includes a probe having a cavity which receives a thermally expansive material such as wax, a displacement member responsive to pressure developed by the temperature expansive material, a sonic or ultra-sonic signal generator, a latch mechanism inhibiting operation of the audio signal generator and a rod mechanically interconnecting the displacement member with the latch so that expansion of the material in the probe cavity trips the latch mechanism to permit generation of an output signal. The device also includes adjustment means for variation in the relative positions of the latch mechanism to the displaceable member whereby the triggering temperature for the latch mechanism can be fixedly adjusted.
REFERENCES:
patent: 2346520 (1944-04-01), Townsend et al.
patent: 3108532 (1963-10-01), Ray et al.
patent: 3131563 (1964-05-01), Britton
patent: 3272433 (1966-09-01), Nilsson
Robertshaw Controls Company
Yasich Daniel M.
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