Heated doors

Details Heated doors Heated doors

1976-04-23

1979-07-31

Goldberg, E. A.

Electric heating

Heating devices

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

49 70, 98 87, 219213, 219347, 219363, 219364, 219367, 219522, E06B 500, F24H 908

Patent

active

041631447

ABSTRACT:
A heated door is formed by two wooden face panels rendered fire-resistant, which are spaced apart by laths which define flues at the base of which are arranged one or more electrical heating elements. Openings are formed in the upper part and the lower part of each of the two face panels and into them are fitted deflectors or they are blocked by covers which are connected to the deflectors by screws. Arrangements are made for supplying power to and regulating the door and making it safe to use.
This type of door is usable in dwelling or work spaces.

REFERENCES:
patent: 507941 (1893-10-01), Snee
patent: 1798892 (1931-03-01), Murray, Jr.
patent: 1848716 (1932-03-01), Hart et al.
patent: 1978413 (1934-10-01), Child
patent: 2530806 (1950-11-01), Boxrud
patent: 2849589 (1958-08-01), Lancaster
patent: 2988626 (1961-06-01), Buttner
patent: 3057989 (1962-10-01), Needham
patent: 3211899 (1965-10-01), McEachron
patent: 3539767 (1970-11-01), Eisler
patent: 3564201 (1971-02-01), Jones et al.
Brochure "Grilles Resistantes ou Toiles Chauffantes" French.

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