Double dome heat and smoke vent structure

Details Double dome heat and smoke vent structure Double dome heat and smoke vent structure

1977-12-05

1980-03-04

Leppink, James A.

Static structures (e.g., buildings)

Controlled by condition responsive means

49 1, 52200, 52232, E04B 718

Patent

active

041909879

ABSTRACT:
A double dome thermoplastic fully enclosed skylight structure is heat softenable for opening the heat and smoke vent to the ambient in case of extraordinary temperature elevation in the vicinity of the skylight structure. The inner dome has a plurality of holes for circulating hot air to the space between the two domes for softening the outermost dome. To provide thermal insulation during normal use the holes are sealed with a heat shrinkable thermoplastic film which shrinks in the presence of the elevated temperatures thus opening the holes at that time.

REFERENCES:
patent: Re28453 (1975-06-01), Sandow
patent: 3387414 (1968-06-01), Adams
patent: 3417522 (1968-12-01), Kiekhaefer
patent: 3918226 (1975-11-01), Naidus
patent: 3924372 (1975-12-01), Anghinetti

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