Closure system for door openings
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United States of America Patent
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Sep 3, 2024
Grant Date -
Oct 20, 2022
app pub date -
Jan 22, 2021
filing date -
Jan 28, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A closure system for door openings defined in a wall (P) and comprising: a quick-opening door (1) adjustedly installed within the door opening (H) and featuring a flexible roll-up sheet (11), an upper casing (12), and vertical uprights (3) equipped with guides (31) for the displacement of the flexible sheet (11); a fire door (2) installed at one side of the wall and comprising at least one fireproof layer (21, 23), for the opening and closure of the door opening (H), a perimeter frame constituted by the vertical uprights (3) and a rearward fireproof cover (4) of the upper casing (12) of the quick-opening door (1).
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