Electrically heated stone bed with electromagnetic shielding lay

Details Electrically heated stone bed with electromagnetic shielding lay Electrically heated stone bed with electromagnetic shielding lay

1997-11-05

1999-03-30

Jeffery, John A.

Electric resistance heating devices

Heating devices

Radiant heater

392339, 219217, 5421, A47C 2104

Patent

active

058899235

ABSTRACT:
A stone bed includes: a stone mat having a wood frame which a sheet is covered around, the wood frame wherein a copper plate, a protective insulating material, a plane carbon heating element, a first protection film, a second protection film, an electromagnetic wave shielding, a third protection film, a far infrared ray nonwoven fabric, and a natural stone are sequentially laid from a bottom, the wood frame having controllers and anion emitters on its both top ends, the controller comprising a power display unit, a selection switch, a temperature control switch, and a temperature display lamp, and a power input cord which is shielding processed; and a bed body having a top surface which the stone mat is mounted on.

REFERENCES:
patent: 1589338 (1926-06-01), White
patent: 2376902 (1945-05-01), Clark
patent: 3136090 (1964-06-01), Carnwath
patent: 4663516 (1987-05-01), Blum
patent: 4680822 (1987-07-01), Fujino et al.
patent: 4825868 (1989-05-01), Susa et al.
patent: 5430900 (1995-07-01), Kim
patent: 5444878 (1995-08-01), Kang

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