Immersion heating element with conductive polymeric fitting

Details Immersion heating element with conductive polymeric fitting Immersion heating element with conductive polymeric fitting

1991-02-26

1992-04-28

Reynolds, Bruce A.

Electric resistance heating devices

Heating devices

Immersion heater details

392455, 392503, 219548, 338 47, F24H 120

Patent

active

051094746

ABSTRACT:
A hot water tank construction, an electrically operated heating element construction therefor and methods of making the same are provided, the electrically operated heating element construction comprising a heating element and an externally threaded fitting for threading into an internally threaded opening in a wall of the tank, the heating element comprising an outer metallic tubular sheath and an inner conductive heater wire insulated from the sheath, the fitting comprising polymeric material, the heating element construction comprising an electrical resistance electrically interconnected to the sheath and being adapted to electrically interconnect the sheath to the wall of the tank, the polymeric material comprising an electrically conductive polymeric material that also comprises the resistance of the heating element construction.

REFERENCES:
patent: 3860787 (1975-01-01), Strobach
patent: 4152578 (1979-05-01), Jacobs
patent: 4736514 (1988-04-01), McIntosh
patent: 4848616 (1989-07-01), Nozaki

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