Fire resistant structure

Details Fire resistant structure Fire resistant structure

1979-09-11

1981-08-11

Epstein, Henry F.

Movable or removable closures

Panel with closure feature

Modified to accommodate lock or latch

49501, 52785, 52809, 428920, 428224, 428688, E06B 300, E06B 382, E06B 516

Patent

active

042826870

ABSTRACT:
A fire resistant structure, and in particular a fire door leaf, having no components of asbestos material, and comprising a sub-frame consisting of two spaced apart arrangements of sub-frame members between which a central panel in the form of a glass fiber reinforced gypsum sheet is attached and two other panels of high density compressed timber fiber board being attached to the sub-frame members on opposite sides of the structure to define, with the central panel, spaces in which insulating material in the form of mineral fiber batts is positioned, with the structure being completed on both faces by panels of sheet steel or wood veneer.

REFERENCES:
patent: 1931125 (1933-10-01), Balduf
patent: 3462341 (1969-08-01), Littin
patent: 3866370 (1975-02-01), Guarino et al.
patent: 3974607 (1976-08-01), Balinski
patent: 4104828 (1979-08-01), Naslund et al.
patent: 4125984 (1978-11-01), Jonas
European Search Copy Report 0008955, Dec. 12, 1979.
Page 1284 of Webster's Third New International Dictionary, G & C Merriam Company, Publishers, Springfield, Mass., U.S.A. 1963.

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