Thermocouple and method of making the thermocouple and of mounti

Details Thermocouple and method of making the thermocouple and of mounti Thermocouple and method of making the thermocouple and of mounti

1983-06-06

1984-10-16

Sebastian, Leland A.

Batteries: thermoelectric and photoelectric

Thermoelectric

Having additional contact means for sensing solid work

29573, 29592R, 136201, 136232, 136233, 136242, 374165, 374179, H01L 3502

Patent

active

044776870

ABSTRACT:
An improved thermocouple and method for making the thermocouple and installing same on the fireside of heat exchanger tubes or the like for monitoring surface temperature which includes a thermocouple assembly made from mineral oxide insulated metal sheathed thermocouple wires where a pair of thermocouple wires or conductors extend through a metal sheath in spaced apart and insulated relation from each other and from the sheath and are connected together at an end to define a hot junction member adapted to be mounted in engagement with the surface being measured, which hot junction is defined by a disk or bar-shaped member extending from the end of the sheated conductor assembly beyond the insulation and sheath but not in contact with the sheath. Installation on a heat exchanger tube includes welding the sheath to the tube which pressurizes the hot junction against the temperature measured surface and defines a heat energy path that bypasses the hot junction.

REFERENCES:
patent: 1140701 (1915-05-01), Mitchell
patent: 2048681 (1936-07-01), Davidson et al.
patent: 3143439 (1964-08-01), Hansen
patent: 3874239 (1975-04-01), Finney
patent: 3939554 (1976-02-01), Finney
patent: 4043200 (1977-08-01), Finney
patent: 4164433 (1979-08-01), Granahan et al.
patent: 4338479 (1982-07-01), Bauman

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