Electric heating – Heating devices – With heating unit structure
Patent
1979-08-02
1981-07-14
Mayewsky, Volodymyr Y.
Electric heating
Heating devices
With heating unit structure
174153R, 219459, 219462, 219464, 219535, 219541, 219553, 338255, 338275, 338276, 338269, 338282, H05B 344, H05B 350
Patent
active
042788773
ABSTRACT:
Resistance heating coils, flattened longitudinally along two sides to have generally oval cross-sections, are embedded in situ in a lightweight ceramic fiber insulating body adjacent to and extending along beneath the surface of the insulating body. Electrical terminal elements extend from the heating coils through the insulating body, and axial movement of the leads is prevented by anchoring members welded thereto. In one embodiment, the coils are embedded in an insulating body having a thickness no greater than about twice the depth of the heating coils. The resulting compact heating unit is sufficiently thin to be mounted as a retrofit item on the interior walls of an existing furnace.
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patent: 3997761 (1976-12-01), Gebien
General Signal Corporation
Mayewsky Volodymyr Y.
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