Roll door system for low temperature environments

The roll door system addresses icing issues in low temperature environments by using a multi-layer curtain with an air cushion and an air flow device to prevent icing, ensuring reliable operation and safety.

WO2025045611A1PCT designated stage expired Publication Date: 2025-03-06ASSA ABLOY ENTRANCE SYST AB
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Patent Information

Application Number
PCT/EP2024/073140
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-08-29
Filing Date
2024-08-16
Publication Date
2025-03-06

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Abstract

The present invention relates to a roll door system particularly for low temperature environments and to a method for operating said roll door system. The roll door system (1) comprising a multi-layer roll door curtain (10). The multi-layer roll door curtain including a first flexible wall portion and a second flexible wall portion. The first and second flexible wall portions form a cushion. The cushion has at least one air inlet opening (72) and at least one air outlet opening. The roll door system further comprises an air flow device (70), wherein the air flow device, provides an air flow to the air inlet opening of the cushion and to a flexible bottom profile (16) and / or to a side frame element (42, 44) of the roll door curtain.
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Citation Information

Patent Citations

  • Door system and method

    GB2526808A

  • Door closure system and a method of manufacture thereof

    GB2561663A

  • Door operator arrangement

    WO2022200502A1