Fastening of pipes
    2.
    发明授权
    Fastening of pipes 失效
    紧固管道

    公开(公告)号:US08316893B2

    公开(公告)日:2012-11-27

    申请号:US12298125

    申请日:2007-04-23

    IPC分类号: F16L11/00

    摘要: A plastics pipe provided with engageable fastener elements on an outer surface thereof, a method for manufacturing the pipe, and a fastener system comprising inter-engageable fastener elements on an outer surface of a pipe and a support therefore.

    摘要翻译: 塑料管在其外表面上设置有可接合的紧固件元件,一种用于制造管子的方法,以及一种紧固件系统,其在管道的外表面和支承件上包括相互接合的紧固元件。

    Heat fusion fitting
    5.
    发明授权

    公开(公告)号:US06818870B2

    公开(公告)日:2004-11-16

    申请号:US10454205

    申请日:2003-06-03

    IPC分类号: H05B304

    摘要: A method for the manufacture of a heat fusion fining, which comprises i) forming a body (1) comprising at least a first layer of a first cross-linked polymeric material, ii) embedding or partly embedding a ferromagnetic heating element (11, 12) in a second polymeric material (13, 14) to form an insert (7, 8), the ferromagnetic heating element (11, 12) having a Curie temperature equal to or greater than the crystalline melting point or softening point of the second polymeric material (13, 14), and iii) assembling the body and the insert (7, 8) to form the fitting.