Electric cartridge heater with a multiple thermocouple assembly

Details Electric cartridge heater with a multiple thermocouple assembly Electric cartridge heater with a multiple thermocouple assembly

1976-07-01

1977-08-02

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heating unit structure

13 22, 73341, 136233, 219328, 219471, 219494, 219510, 219530, 219534, 219541, 338238, H05B 340

Patent

active

040397785

ABSTRACT:
A cartridge heater and multiple thermocouple assembly comprising an elongate outer heavy walled structurally supportive metal sheath, an elongate thin walled, yieldable, orienting metal tube extending through the sheath and defining an annulus, a plurality of axially aligned pairs of thermocouple cables and spacer rods fixed to the tube in circumferential spaced parallel relationship and extending through the annulus in interfering engagement with the sheath, a resistance element extending through the tube, conductor terminals for the element accessible at one end of the tube and a filler of particulate dielectric material compacted in the tube about the element and in the annulus between the sheath, tube and adjacent pairs of cables and rods, said cables being of different lengths and having outer ends with conductors accessible at an end of the annulus and having inner ends with thermocouple junctions located at spaced points longitudinally of the sheath.

REFERENCES:
patent: 3129056 (1964-04-01), Muir
patent: 3229358 (1966-01-01), Scadron et al.
patent: 3286081 (1966-11-01), Scowcroft
patent: 3338752 (1967-08-01), Finney
patent: 3340382 (1967-09-01), Lennox
patent: 3414711 (1968-12-01), Guyet et al.
patent: 3476916 (1969-11-01), LaVan
patent: 3492170 (1970-01-01), Davis et al.
patent: 3607447 (1971-09-01), Davis et al.
patent: 3614387 (1971-10-01), Wrol et al.
patent: 3898431 (1975-08-01), House et al.

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