Electric resistance heating devices – Heating devices – Radiant heater
Reexamination Certificate
2006-10-10
2006-10-10
Evans, Robin O. (Department: 3742)
Electric resistance heating devices
Heating devices
Radiant heater
C392S435000, C392S436000, C392S437000, C219S530000, C219S531000, C219S539000, C219S540000
Reexamination Certificate
active
07120353
ABSTRACT:
A portable compact sauna wherein a user's body is warmed to sweating primarily by direct absorption of infrared radiation. Broad infrared radiation emitters or sources are placed around the inside of a narrow cabinet so as to be in close proximity to various parts of a seated user. Fins spaced apart less than finger-width on the emitters protect the user from contact with elevated temperatures in the emitters. The emitters, which lend themselves to easy cleaning, are heated by electric infrared heaters having a unique design which eliminates extremely-low-frequency (ELF) electromagnetic field (ELF) normally generated by AC energized electrical heater elements, to provide low extremely-low frequency EMF saunas able to utilize conventional-commercial electrical-energy sources. The emitters protect the heaters. Power wires for the heaters are arranged for low ELF EMF emission, too.
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Schaeffer Bernarr C.
Schaeffer James
Schaeffer Wayne
Evans Robin O.
Fastovsky Leonid M.
Taphorn Joseph B.
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