Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1986-07-21
1988-04-26
Bartis, Anthony
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219364, 219366, 219375, 219530, 219540, F24H 306, H05B 300, H05B 102
Patent
active
047406704
ABSTRACT:
A multiuse fan includes a housing enclosing an electrically driven fan for providing a flow to air from a grilled air inlet to a grilled air outlet through a generally circular electric heater assembly in the housing. The heater assembly includes a grating formed by a plurality of spaced, parallel, radially extending metallic heating plates, each having inner and outer portions inclined with respect to each other and which form an intermediate ring-like summit portion at the juncture of the inner and outer portions. The inner end of each plate is connected to an inner ring member coaxial with the fan and the outer end of each plate is joined to an outer ring attached to the housing. An electric heating ring member is positioned in an annular groove provided in the summit portion. Controls permit the fan to be engaged alone to merely circulate air or the fan heating ring to be simultaneously energized to heat and circulate the air.
REFERENCES:
patent: 2109279 (1938-02-01), Soverhill
patent: 2455839 (1948-12-01), Waltom
patent: 2509137 (1950-05-01), Denman
patent: 2839657 (1958-06-01), Mast
patent: 3020386 (1962-02-01), Naxom
patent: 3481534 (1969-12-01), Price
patent: 4117308 (1978-09-01), Boggs et al.
Bartis Anthony
Taiwan Electric Heating Equipment Co. Ltd.
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