Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1976-10-26
1978-07-18
Kozma, Thomas J.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219347, 219354, 219405, 219411, H05B 100
Patent
active
041017595
ABSTRACT:
A semiconductor body heater is provided with a planar array of radiant heating elements spaced from a reflector. In the preferred embodiment, each radiant heating element comprises a tungsten filament quartz lamp. Each lamp is removable and replaceable without disengaging any other lamp. The reflector is cooled by flows of gas and liquid coolant therethrough. Flows of gas between the planar array of lamps and the reflector and between the reflector and a cover member also cool the apparatus. Various diffusers for substantially eliminating temperature nonuniformities over an area illumined by the planar array of lamps are also disclosed. The semiconductor body heater of the present invention is particularly well suited for use in a temperature gradient zone melting process.
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Research Inc., "High Density Radiant Heater for Sustained High Temperature Operation", Data Bulletin D518.1.
Anthony Thomas R.
Cline Harvey E.
Erikson Carl A.
Fielding John O.
Cohen Joseph T.
General Electric Company
Kozma Thomas J.
Watts Charles T.
Winegar Donald M.
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