Fire resistant gate

Details Fire resistant gate Fire resistant gate

1978-12-27

1981-04-28

Downey, Kenneth

Movable or removable closures

Panel with closure feature

52815, 52799, 52601, 5230917, 52794, E06B 300

Patent

active

042637520

ABSTRACT:
A fire-resistant gate is disclosed which comprises a trapezoidally profiled steel sheet with punched thorny apertures, insulating layers on both side of the profiled steel sheet, and the outer face of the insulating layers being made of thin fiber reinforced cement layers. The advantage of the gate resides not only in the fact that the profiled steel sheet for bearing the vertical load is covered by the insulating layers and thus protected from fire, but also in that bearing capacity and stiffness of the gate are improved by the combination of expanded mineral-cement layers and thin fiber reinforced cement layers.

REFERENCES:
patent: 2934934 (1960-05-01), Berliner
patent: 3024574 (1962-03-01), Sahlstrom
patent: 4016697 (1977-04-01), Ericson
patent: 4069629 (1978-01-01), Piazza

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