Cartridge heater

Details Cartridge heater Cartridge heater

1994-08-31

1996-11-19

Walberg, Teresa J.

Electric heating

Heating devices

With heating unit structure

219546, 338230, 338238, 338273, H05B 344, H01C 102

Patent

active

055759416

ABSTRACT:
The cartridge heater disclosed has a coiled wire heater element with connected lead conductor wires contained within a metallic tubular sheath. Electrically insulative material insulates and supports the heater element and lead conductor wires within said sheath. The tubular enclosure has one or more folds to define parallel longitudinal heater segments containing the heater element. An outer metallic casing surrounds the heater segments defining a body portion. Lead wires comprised of the metallic sheath and the lead conductor wires extend from the body portion.

REFERENCES:
patent: 3340382 (1967-09-01), Lennox
patent: 3678249 (1972-07-01), Lennox
patent: 3920963 (1975-11-01), Beasley et al.
patent: 3927301 (1975-12-01), Heuel et al.
patent: 3982099 (1976-09-01), Churchill
patent: 4125761 (1978-11-01), Churchill
patent: 5148594 (1992-09-01), Gellert
Hotset Corporation catalog--pp. 2-1-2-10.
Tempco Electric Heater Corporation catalog, #84, pp. 1-24.
Watlow catalog, PC9091; pp. i-v and 1-22.

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