Fire resistant doors

Details Fire resistant doors Fire resistant doors

1975-12-10

1976-10-26

Bell, J. Karl

Static structures (e.g., buildings)

Opaque stonelike module

With layered stonelike components

49503, 52232, 428920, E04C 200, E04C 234, E04B 228

Patent

active

039876004

ABSTRACT:
Fire-resisting doors having a novel framing, that is the stiles and rails of the door, are disclosed. The door comprises preferably a thermal insulating core and conventional outer facing cover sheets and is framed with a particular combination of glass fibers and gypsum in a particular arrangement.

REFERENCES:
patent: 3185297 (1965-05-01), Rutledge
patent: 3225505 (1965-12-01), Lytz
patent: 3299595 (1967-01-01), Munk
patent: 3311516 (1967-03-01), Jaunarajs et al.
patent: 3864201 (1975-02-01), Susuki

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