Coupling pipes
    2.
    发明授权
    Coupling pipes 失效
    联轴器管

    公开(公告)号:US4711473A

    公开(公告)日:1987-12-08

    申请号:US912822

    申请日:1986-09-29

    申请人: John B. Glover

    发明人: John B. Glover

    IPC分类号: F16L49/02 F16L21/00

    CPC分类号: F16L49/02

    摘要: A clay or similar pipe has a coupling socket at one end formed by a shrink-fitted plastics sleeve. A sealing ring or band is interposed between the sleeve and the pipe surface. External compression is applied to the plastics sleeve over the sealing member during shrinkage of the sleeve. This compresses the sealing member and ensures reliable sealing without requiring the use of an additional bonding or sealing composition.Alternatively or additionally, a shrink-fitted plastics socket on a claywear or similar pipe end may have a region spaced from the pipe end, provided with a seal ring, and not subjected to shrink-fitting. The seal ring provides a secondary seal.

    摘要翻译: 粘土或类似的管道在一端具有由收缩装配的塑料套筒形成的联接插座。 密封环或带插入在套管和管表面之间。 在套筒收缩期间,外部压缩被施加到密封构件上的塑料套筒上。 这压缩了密封件并且确保了可靠的密封,而不需要使用额外的粘合或密封组合物。 或者或另外,粘性或类似管端上的收缩式塑料插座可以具有与管端部间隔开的区域,设置有密封环,并且不进行收缩配合。 密封圈提供二次密封。

    Apparatus for the manufacture of composite articles using rotating molds
    3.
    发明授权
    Apparatus for the manufacture of composite articles using rotating molds 失效
    用于使用旋转模具制造复合制品的装置

    公开(公告)号:US4744741A

    公开(公告)日:1988-05-17

    申请号:US882237

    申请日:1986-07-07

    摘要: A molding apparatus for making a plastics pipe fitting or pipe coupling by injection-molding the plastics pipe fitting or coupling body, injection-molding at least one sealing ring separately but substantially simultaneously, and bringing the body and sealing ring together directly after the molding while these components are still in a hot as-molded state, so that a direct thermal bond is formed between them comprises respective injection-molding cavities for the body and sealing ring, and a reversible support for carrying the sealing ring out of its mold and into contact with the molded body. The respective molds are opened and the components are not stripped but are brought together for bonding while still in position on respective mold members, thereby eliminating intermediate handling and ensuring that the molded components remain clean and of accurate shape and dimension as they are brought together.

    摘要翻译: 一种用于通过注塑塑料管接头或联接体注塑成型塑料管接头或管接头的成型设备,分别注射成型至少一个密封环,但基本上同时进行,并且在成型之后将本体和密封圈直接接合在一起 这些部件仍然处于热成型状态,从而在它们之间形成直接热粘结,它们包括用于主体和密封环的各自的注塑腔,以及用于将密封环从其模具中携带并转入 与成型体接触。 相应的模具打开,并且组件不被剥离,但是在相应的模具构件上仍然在适当位置的同时被接合在一起,从而消除了中间处理,并且确保模制部件保持清洁并且在形成和尺寸被集合时保持准确的形状和尺寸。