Electric heating – Heating devices – Combined with diverse-type art device
Patent
1989-03-14
1990-08-28
Pellinen, A. D.
Electric heating
Heating devices
Combined with diverse-type art device
174 48, 219345, 219541, 439 33, H05B 334
Patent
active
049527754
ABSTRACT:
A floor heating panel made of wood, a heating element on the top of the wood, a covering layer placed over the heating element to cover the entire top surface of the wood, and a cushioning layer beneath the wood. The wood has on its bottom surface a row of slits to allow the wood to resiliently flex to a limited extent. The floor heating panel has two connectors that are slidably along one dimension of the heating panel between inner and outer stop elements.
REFERENCES:
patent: 3095491 (1963-06-01), Deacon
patent: 3223775 (1965-12-01), Nugent
patent: 3598960 (1971-08-01), Deacon
patent: 4204106 (1980-05-01), Colten
patent: 4480175 (1984-10-01), Brasky
patent: 4677801 (1987-07-01), Bard
Arakawa Jun-ichi
Hibino Minoru
Tanooka Hikomi
Yokoyama Seiko
Evans Geoffrey S.
Matsushita Electric & Works Ltd.
Pellinen A. D.
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