Contoured heating element

Details Contoured heating element Contoured heating element

1997-04-11

1998-12-01

Walberg, Teresa J.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

219386, 392498, 392503, H05B 306

Patent

active

058442111

ABSTRACT:
The present invention relates to an electric immersion heater utilized in heating liquids contained in a cylindrical container, such as a boiler. The immersion heater is affixed to the side of the container with the heater elements extending through the side of the container through an access hole. The heater elements are contoured so as to allow more than one heater to be installed at a given level through the side of the container.

REFERENCES:
patent: 3148268 (1964-09-01), Heinbuch
patent: 3619565 (1971-11-01), D'Elia et al.
patent: 3666003 (1972-05-01), Clark, Jr. et al.
patent: 3674985 (1972-07-01), Ragault
patent: 4105895 (1978-08-01), Kennedy
patent: 4319127 (1982-03-01), Lindstrom
patent: 4687905 (1987-08-01), Cunningham et al.
patent: 5013890 (1991-05-01), Gamble
patent: 5187772 (1993-02-01), Rumbley
patent: 5459812 (1995-10-01), Taylor

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