Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1979-03-15
1982-04-20
Bartis, A.
Electric heating
Heating devices
With heater-unit housing, casing, or support means
219319, 219322, 219335, 219338, 219532, 219552, 338254, 338301, 338321, H05B 380, F24H 122, H01C 318
Patent
active
043261213
ABSTRACT:
An electric immersion heater of planar construction for use in industrial processes is constructed of a non-corrodable material and may be immersed at the side of a processing not containing corrosive liquids. The heater includes a thin planar polymeric support frame having side members with end sections extending beyond the end portions of the frame. An electrical resistance heating element wire shrouded with an integral layer of polymeric material is wound around the end portions of the frame to form a substantially flat heating element assembly. Imperforate polymeric cover plates are secured in spaced relationship to opposite faces of the heating element assembly by spacing and securing means engaging the side members of the frame. The peripheral edges of the cover plates are spaced apart to form a gap allowing for free flow of fluid through the heater between the plates throughout the entire extent of the heater.
REFERENCES:
patent: 566341 (1896-08-01), Rockwell
patent: 918732 (1909-04-01), Chase
patent: 1151403 (1915-08-01), Ryce et al.
patent: 1540964 (1925-06-01), Trahan
patent: 1661062 (1928-02-01), Ambory
patent: 1695753 (1928-12-01), Baker
patent: 2614200 (1952-10-01), McNair
Dewson Alan G.
Welsby Dennis H.
Bartis A.
E. Braude (London) Limited
Groff, Jr. Emory L.
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