Infrared heater apparatus

Details Infrared heater apparatus Infrared heater apparatus

1997-04-30

1999-06-22

Leung, Philip H.

Electric resistance heating devices

Heating devices

Radiant heater

392408, 392415, 219411, 219553, 250504R, F21V 3102, F21V 2512, H05B 344

Patent

active

059150726

ABSTRACT:
A radiant heater apparatus includes a heating element which generates radiant energy. The heating element has first and second terminals. The apparatus also includes an inner tube configured to surround the heating element. The inner tube includes first and second ends. The inner tube is substantially transmissive to radiant energy. The apparatus further includes an outer tube surrounding the inner tube. The outer tube has an inner surface, an outer surface, and first and second ends. The inner surface of the outer tube is absorptive to radiant energy, and the outer surface of the outer tube is emissive to radiant energy so that radiant energy from the heating element passing through the inner tube is absorbed and re-emitted from by outer tube.

REFERENCES:
patent: 3646319 (1972-02-01), Auld
patent: 4064402 (1977-12-01), Posnansky
patent: 4818849 (1989-04-01), Matlen
patent: 5162038 (1992-11-01), Wilker
patent: 5382805 (1995-01-01), Fannon et al.
patent: 5453077 (1995-09-01), Donnelly et al.
patent: 5474517 (1995-12-01), Falk et al.
patent: 5498229 (1996-03-01), Barsky et al.

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