DROP IN FIRE STOP ASSEMBLY
    1.
    发明公开

    公开(公告)号:US20240328542A1

    公开(公告)日:2024-10-03

    申请号:US18737967

    申请日:2024-06-08

    CPC classification number: F16L5/04 A62C2/065 F16L5/10

    Abstract: A concrete floor has a pipe passing through a hole in the floor. A drop-in fire stop assembly has a clam-shell configuration having first and second portions of a fire ring, split cage, split retainer ring, split intumescent ring, split inner smoke ring and split outer smoke ring each fastened together to rotate about a hinge on the split cage to open and close. The first and second portions have free ends that spread apart to fit around the tube in an open position, and close around the tube in a closed position. A latch on the free ends of the cage hold the two portions together in the closed position.

    FIRE STOP ASSEMBLY FOR CONCRETE STRUCTURES

    公开(公告)号:US20250001224A1

    公开(公告)日:2025-01-02

    申请号:US18812522

    申请日:2024-08-22

    Abstract: A concrete structure with a corrugated bottom surface has a pipe passing through a passage in the structure. A fire stop assembly has a first portion with a split plate, split cage, split intumescent ring, split inner smoke ring and split outer smoke ring each fastened together to rotate together about a hinge on the split cage. The fire stop assembly has a second portion of the split plate, split cage, split intumescent ring, split inner smoke ring and split outer smoke ring fastened together to rotate together about a hinge. The first and second portions have free ends that spread apart to fit around the tube in an open position, and close around the tube in a closed position.

    DROP IN FIRE STOP ASSEMBLY
    3.
    发明申请

    公开(公告)号:US20230033042A1

    公开(公告)日:2023-02-02

    申请号:US17788928

    申请日:2021-01-22

    Abstract: A concrete floor has a pipe passing through a hole in the floor. A drop-in fire stop assembly has a clam-shell configuration having first and second portions of a fire ring, split cage, split retainer ring, split intumescent ring, split inner smoke ring and split outer smoke ring each fastened together to rotate about a hinge on the split cage to open and close. The first and second portions have free ends that spread apart to fit around the tube in an open position, and close around the tube in a closed position. A latch on the free ends of the cage hold the two portions together in the closed position.

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