LADDER
    1.
    发明申请
    LADDER 审中-公开
    阶梯

    公开(公告)号:WO2013032887A1

    公开(公告)日:2013-03-07

    申请号:PCT/US2012/052217

    申请日:2012-08-24

    CPC classification number: E06C7/08 E06C1/06 E06C1/16 E06C7/082

    Abstract: A ladder including a first stringer and a second stringer spaced transverse from each other is provided. Each of the first and second stringers defines a channel and includes a plurality of crosspieces disposed in the channels of the first and second stringers. A plurality of rungs are spaced along and coupled between the first and second stringers. Each of the rungs has a horizontal portion and a vertical portion extending from the first stringer to the second stringer. A plurality of ribs are spaced along and coupled between the horizontal and vertical portions of the rungs.

    Abstract translation: 提供包括彼此横向间隔开的第一纵梁和第二纵梁的梯子。 第一和第二桁条中的每一个限定通道并且包括设置在第一和第二桁条的通道中的多个横档。 多个梯级沿着第一和第二桁条间隔并连接在第一和第二桁条之间。 每个梯级具有从第一纵梁延伸到第二纵梁的水平部分和垂直部分。 多个肋在梯级的水平部分和垂直部分间隔开并联接。

    FRICTIONAL WELD JOINT FOR AN ARTICLE COMPRISING A THERMOPLASTIC MATERIAL

    公开(公告)号:WO2012162362A3

    公开(公告)日:2012-11-29

    申请号:PCT/US2012/039088

    申请日:2012-05-23

    Abstract: A frictional weld joint couples first and second body portions of an article together. The frictional weld joint comprises a first bead extending from the first body portion of the article and a second bead extending from the second body portion of the article. The second bead has an interior stem and an exterior stem space from the interior stem defining a cavity therebetween. The first and second beads are placed in contact with each other with the centerline of the second bead offset from the centerline of the first bead. A force is applied to either the first or second body portions to generate friction between the first and second beads to plastically displace the first and second beads. The force is removed for fusing the first and second beads together to couple together the first and the second body portions of the article.

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