Heating device for water beds

Details Heating device for water beds Heating device for water beds

1996-03-08

1998-09-22

Walberg, Teresa J.

Electric heating

Heating devices

Combined with diverse-type art device

219537, 219528, 5422, H05B 100, H05B 334, H05B 306, A47C 2708

Patent

active

058117601

ABSTRACT:
A heating device for water beds comprises a plurality of electrical resistance conductors arranged between a bed frame and a safety foil, means for controlling the conductors in dependence on the desired temperature of a water core locatable under the safety foil, a plurality of ceramic plates arranged so that the conductors are burnt-in the ceramic plates, a bending resistant metal plate having a lower side, the ceramic plates being glued to the lower side of the metal plate by an adhesive having high thermal conductivity, and a base plate having poor thermal conductivity and placeable on the bed frame, the metal plate being arranged on the base plate in a form-locking manner with an air gap for the ceramic plates.

REFERENCES:
patent: 3790753 (1974-02-01), Miller
patent: 3982098 (1976-09-01), Trostler
patent: 4574184 (1986-03-01), Crews et al.
patent: 4733056 (1988-03-01), Kojima et al.
patent: 4843218 (1989-06-01), Husslein et al.
patent: 4922084 (1990-05-01), Hutter
patent: 5081339 (1992-01-01), Stine
patent: 5233166 (1993-08-01), Maeda et al.

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