Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1986-05-12
1988-04-12
Bartis, Anthony
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219360, 219361, 219362, 219364, 219366, 219472, 219473, 261139, 261142, H05B 300, H05B 100, F24H 304, F24H 900
Patent
active
047376163
ABSTRACT:
A multifunction portable electric room heater has an outer housing provided with an air inlet and air outlet and encloses a removable unit including a hollow base containing electrical power supply circuitry and supporting on its upper side a heating cartridge holder and a fan having an electrical motor connected for energization to the power supply circuitry. A heating cartridge carrying a PTC electric resistance heating element is removably inserted into the holder through registering slots in the housing wall and holder for heating the air circulated by fan through the holder and the heating cartridge from the air inlet to the air outlet. Cooperating electrical connectors are provided on the base and heating cartridge for detachably connecting the heating element to the power supply circuitry in the base. The heating cartridge is removable for cleaning and repair and may be replaced by cartridges similar in shape and carrying an air filter or an aromatic diffuser so that the apparatus may be used to filter room air or discharge a fragrant aroma into the room.
REFERENCES:
patent: 2025216 (1935-12-01), Opitz
patent: 2062042 (1936-11-01), Sargent
patent: 2109279 (1938-02-01), Soverhill
patent: 2544189 (1951-03-01), Tankersley
patent: 2628083 (1953-02-01), Rense
patent: 2638644 (1953-05-01), Rauhut
patent: 2839657 (1958-06-01), Mast
patent: 3176117 (1965-03-01), Knoll et al.
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