Reflectant foil insulated steel doors

Details Reflectant foil insulated steel doors Reflectant foil insulated steel doors

1976-11-16

1978-10-03

Murtagh, John E.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

29455LM, 52807, E04C 234

Patent

active

041185439

ABSTRACT:
A door made up of a grid frame, two sheets of metallic foil and two face skins. The grid frame is made up of laterally and longitudinally extending members. A sheet of foil is supported on each side of the grid frame under the face skins. The door has provision for hinges and a lock.

REFERENCES:
patent: 1793382 (1931-02-01), Woehler
patent: 1962868 (1934-06-01), Gregg
patent: 2233711 (1941-03-01), Pasquier
patent: 2299776 (1942-10-01), Weightman
patent: 2333600 (1943-11-01), Trautvetter
patent: 2717062 (1955-09-01), Dusing
patent: 2757116 (1956-08-01), Clements
patent: 2926761 (1960-03-01), Herbert
patent: 3030703 (1962-04-01), Wirsing
patent: 3091846 (1963-06-01), Henry

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