Electric space heater

Details Electric space heater Electric space heater

1977-11-22

1979-01-02

Truhe, J. V.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

165131, 219365, 219530, 219540, F24H 902

Patent

active

041328850

ABSTRACT:
A space heater comprises a heater plate made of a metal sheet provided with vertical corrugations, the corrugations in the bottom portion of the sheet being compressed to a flat strip of a thickness not less than three times the thickness of the sheet. The corrugations are so dimensioned that the unfolded length of the metal sheet is three times the length of the corrugated length of the heater body. One, two or more electric flat heating elements are laid along the compressed bottom edge and pressed against it by a U-shaped retaining channel. When serving as a room air-heater, the heater plate is covered on one or both sides by protective panels to prevent people from touching the hot plate and to increase convective air current flow.

REFERENCES:
patent: 2019913 (1935-11-01), Kotrbaty
patent: 2623154 (1952-12-01), Suhr
patent: 2636970 (1953-04-01), Jackson et al.
patent: 2858402 (1958-10-01), Griffes et al.
patent: 3611534 (1971-10-01), Keith

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