Vent

Details Vent Vent

F - Mech Eng,Light,Heat,Weapons

24

F

98/41

F24F 13/00 (2006.01)

Patent

CA 1077329

VENT Abstract of the Disclosure A system for venting smoke and fumes from selected floors of a multi-story building comprising a vertical smoke pipe or shaft which extends from the basement to ehe roof of the building and a plurality of vent units disposed along the smoke shaft, one being associated with each floor of the building. Each unit includes a hinged door that opens by gravity force and is normally maintained closed by a latch mechanism that may be operated remotely by electrical or pneumatic means or may be operated manually. A thin metallic gasket seals the door to its frame and further functions as a spring means for urging the door open when the latch mechanism is released. 1.

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