Expandable phase change detector device

Details Expandable phase change detector device Expandable phase change detector device

1980-04-14

1981-06-23

Woodiel, Donald O.

Measuring and testing

Gas analysis

Moisture content or vapor pressure

73 17R, 73359R, G01K 1312

Patent

active

042742846

ABSTRACT:
An expendable phase change detector device is provided with an initial coating on the twisted wire forming the thermocouple junction which is, in turn, covered by a refractory coating during the manufacture of the device. The initial coating responds to an increased temperature to ablate the refractory coating from the thermocouple junction when molten metal is poured into the device.

REFERENCES:
patent: Re26409 (1968-06-01), Hance
patent: 3267732 (1966-08-01), Hance
patent: 3546921 (1970-12-01), Bourke et al.
patent: 3748908 (1973-07-01), Falk
patent: 3774441 (1973-11-01), Dorst et al.
patent: 3818762 (1974-06-01), Kraus
patent: 3844172 (1974-10-01), Jeric

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