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    FIRE RESISTANT DOOR CORES, DOOR SKINS, AND DOORS INCLUDING THE SAME
    32.
    发明申请
    FIRE RESISTANT DOOR CORES, DOOR SKINS, AND DOORS INCLUDING THE SAME 有权

    公开(公告)号：US20210095518A1

    公开(公告)日：2021-04-01

    申请号：US17121055

    申请日：2020-12-14

    Applicant: Masonite Corporation

    Inventor： Hussain ALI ,  Jamie CORCORAN

    IPC: E06B3/70 ,  E06B5/16

    Abstract: A door has a core that includes a first major surface having one or more first recesses, a second major surface opposite to the first major surface, and fire retardant material such as intumescent material applied to the first recesses and no more than about 20 percent by surface area of a remainder of the first major surface excluding the first recesses. A door skin includes an interior surface, an exterior surface, at least one contoured panel portion establishing a protrusion extending on the interior surface and an opposite depression extending into the exterior surface, and fire retardant material such as intumescent material applied to at least one of the protrusion or the depression and no more than about 20 percent by surface area of the remainders of the interior surface excluding the protrusion and the exterior surface excluding the depression.

    DOORS CONTAINING CORE INSERTS, AND METHOD OF MAKING THE SAME
    38.
    发明申请
    DOORS CONTAINING CORE INSERTS, AND METHOD OF MAKING THE SAME 审中-公开

    公开(公告)号：US20200370362A1

    公开(公告)日：2020-11-26

    申请号：US16881892

    申请日：2020-05-22

    Applicant: Masonite Corporation

    Inventor： Steven C. MOORE, JR. ,  James K. KINGRY ,  Robert C. ALLEN

    IPC: E06B3/70 ,  E06B3/78

    Abstract: A method of making a door involves providing a first door facing including a first raised region and a first panel recessed from the first raised region by a first dimension, and securing a first core insert having a thickness equal to the first dimension to the first raised region. A second door facing including a second raised region and a second panel recessed from the second raised region by a second dimension is provided. A second core insert having a thickness equal to the second dimension is secured to the second raised region. A central core component is secured to the first panel and the first core insert after the first core insert has been secured to the first raised region. The second panel and the second core insert are secured to the central core component after the second core insert has been secured to the second raised region.

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