Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1975-06-23
1977-10-04
Bartis, A.
Electric heating
Heating devices
With heater-unit housing, casing, or support means
81 35, 219343, 219349, 219354, 219358, 219364, 219377, 219405, 219411, 350292, 362218, 362301, H05B 100, G02B 510
Patent
active
040525937
ABSTRACT:
A device for electrically heating thermoplastic articles includes a housing having means for receiving the article in position to be heated. An infrared generator in the form of a tungsten halogen lamp is located in the housing and a split, out-of-phase parabolic reflector system is provided for directing the radiation from the lamp onto plural sides of the article. A blower in the housing provides a flow of cooling air over the lamp and reflector system. A thermal control means responsive to the combination of radiant heat absorbed from the lamp and the cooling effect of the flow of air is provided for cycling the lamp on and off to control the radiant energy emitted therefrom. The lamp may be surrounded by a foraminous thermal converter which allows some of the direct radiation from the lamp to filter through to be directed to the article and interrupts and absorbs the remainder of the radiation converting it to heat which is picked up by the air flow for delivery to the article being heated.
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patent: 3334620 (1967-08-01), De Werth
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patent: 3559564 (1971-02-01), Turner et al.
patent: 3732803 (1973-05-01), Buxmann
patent: 3816705 (1974-06-01), Ebert
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