Fire barrier ventilation sealing assembly and ventilation device

Details Fire barrier ventilation sealing assembly and ventilation device Fire barrier ventilation sealing assembly and ventilation device

1996-03-25

1998-09-22

Kincaid, Kristine L.

Electricity: conductors and insulators

Conduits, cables or conductors

Single duct conduits

52232, E04B 194

Patent

active

058117318

ABSTRACT:
This fire barrier ventilation device has a duct (15) surrounded by a sheath (28) made of fire barrier protective material. A fire barrier ventilation sealing assembly (22), formed by a frame having grilles (2, 3) fixed to refractory material plates (4, 5) each bearing a plate (10, 11) of intumescent material, is fixed to the duct facing a ventilation orifice or slit (20) in the latter. A ventilation passage (12) located facing the ventilation slit (20) of the duct (1) containing cables (C) to be protected is formed between the plates (10, 11) of intumescent material.

REFERENCES:
patent: 4493945 (1985-01-01), Feldman
patent: 5398467 (1995-03-01), Ricq et al.

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