Expandable double walled smoke stack
    1.
    发明授权
    Expandable double walled smoke stack 失效
    可扩展的双壁烟囱

    公开(公告)号:US4064793A

    公开(公告)日:1977-12-27

    申请号:US734337

    申请日:1976-10-20

    IPC分类号: E04F17/02

    CPC分类号: E04F17/02

    摘要: A double walled smoke stack is made up of stackable sections. The top part of each section has a member extending between inner and outer shells and is either downwardly prestressed towards the inner shell or is flexible. This allows the inner shell to upwardly expand.

    摘要翻译: 双层烟囱由可堆叠的部分组成。 每个部分的顶部具有在内壳和外壳之间延伸的构件,并且朝向内壳向下预应力或柔性。 这允许内壳向上膨胀。