Barricade for isolating open areas from spreading fire or smoke

Details Barricade for isolating open areas from spreading fire or smoke Barricade for isolating open areas from spreading fire or smoke

1990-11-16

1993-02-23

Marmor, Charles A.

Fire extinguishers

Apparatus which isolates flames from non-burning area

169 54, 169 56, 169 64, 160 40, A62C 210, A62C 224, A62C 218

Patent

active

051881861

ABSTRACT:
An expandable barrier for isolating a mine entry or similar open area is disclosed wherein the expandable barrier includes an expandable hollow curtain or bag housed within a horizontal brace member connected to the roof of an entry, the expandable hollow curtain being connected to vertical brace members adjacent to the walls of the mine entry. The expandable bag fills with a material capable of expanding the bag, such as a foam-like material, and expansion of the bag causes the bag to descend downwardly from the first horizontal brace member. The bag fills with distensible material in response to a stimulus detected by a monitor associated with the containers which contain the distensible material. A closeable opening or flap is disposed in the bag to allow passage of people or equipment therethrough. The expandable barrier may also be oriented in a horizontal position for use in vertical shafts.

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