Cartridge-type electric immersion heating element having an inte

Details Cartridge-type electric immersion heating element having an inte Cartridge-type electric immersion heating element having an inte

1980-04-10

1982-11-09

Bartis, A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219316, 219330, 219335, 219337, 219508, 219512, 219523, 337380, 337381, 338240, 338241, H05B 102, H05B 382, H01H 3704, H01C 103

Patent

active

043586678

ABSTRACT:
A cartridge-type electric immersion heating element having an integrally contained, self-limiting thermostatic control included in its electrical circuit includes an electric resistance heating element embedded in compacted powdered insulating material partially filling a tubular metallic sheath open at one end. A preset thermostat is located within a thermostat sleeve positioned in close proximity with the sheath wall and has an end embedded in the insulating material. The thermostat is connected in series circuit with the heating element and the ends of power supply leads enter the sheath through the open end thereof. A body of potting compound, such as epoxy resin, completely fills the remainder of the sheath, seals the open end thereof and encapsulates the other end of the sleeve and the power supply lead ends whereby the sleeve and thermostat are securely held in position in the sheath.

REFERENCES:
patent: 2727116 (1955-12-01), Alfred et al.
patent: 2754407 (1956-07-01), Smith
patent: 2784292 (1957-03-01), Haloski
patent: 2789201 (1957-04-01), Sherwin
patent: 2816207 (1957-12-01), Boggs
patent: 2866041 (1958-12-01), Dell
patent: 3277277 (1966-10-01), Wells
patent: 3371192 (1968-02-01), Rosenel
patent: 3399295 (1968-08-01), Chaustowich
patent: 3440109 (1969-04-01), Plattner
patent: 3767898 (1973-10-01), Wells et al.
patent: 4068116 (1978-01-01), McKinstry

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