Open coil electric heating elements

Details Open coil electric heating elements Open coil electric heating elements

1974-08-23

1976-03-09

Mayewsky, Volodymyra Y.

Electric heating

Heating devices

With heater-unit housing, casing, or support means

174138J, 219536, 338318, H05B 306

Patent

active

039433331

ABSTRACT:
Our invention relates to open coil electric heating elements of conventional construction but treated to resist corrosion and to electrically insulate exposed metallic surfaces. In accordance with the invention, the component parts of the heater, except the coiled resistance wire and in some cases the supporting insulating bushings, are assembled and then coated with a silicone resin-based coating composition. The composition is applied in a flowable state to cover all exposed surfaces and fill all cracks and crevices to thereby prevent accumulation of moisture thereat.

REFERENCES:
patent: 948819 (1910-02-01), Lutz
patent: 2397568 (1946-04-01), Seaman
patent: 2457598 (1948-12-01), Osterheld
patent: 2628300 (1953-02-01), Berkelhamer
patent: 2665357 (1954-01-01), DuBois
patent: 2921172 (1960-01-01), Hackman
patent: 3205467 (1965-09-01), Ganci

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