Self Restrained Ductile Iron Fitting
    1.
    发明申请
    Self Restrained Ductile Iron Fitting 审中-公开
    自我保护球墨铸铁配件

    公开(公告)号:US20100078937A1

    公开(公告)日:2010-04-01

    申请号:US12493828

    申请日:2009-06-29

    IPC分类号: F16L17/025

    摘要: A combination sealing and restraint system for an as-cast ductile iron fitting is shown for both sealing and preventing separation of an iron pipe fitting and a mating male pipe. A ring-shaped body is installed within a mating groove provided in a mouth region of the as-cast fitting after the fitting has been cast at the manufacturing plant. The ring-shaped body is formed of an injection molded elastomeric material and carries a series of gripping segments which have teeth on an inner surface thereof which are designed to engage an outer surface of a mating male pipe. The teeth are oriented to allow movement of the male pipe in a first direction relative to an end opening o f the fitting during assembly, but to resist movement in a opposite direction after the fitting joint has been assembled. The gripping segments are mechanically bonded to the elastomeric body of the gasket during the injection molding operation. The ring-shaped body also includes a relatively flexible portion formed of an elastomer which forms a lip seal region with the mating male pipe.

    摘要翻译: 示出了用于铸造球墨铸铁配件的组合密封和约束系统,用于密封和防止铁管配件和配合公管的分离。 在配件在制造工厂铸造之后,环形体安装在设置在铸造配件的口部区域中的配合槽内。 环形主体由注射成型的弹性体材料形成并且承载一系列在其内表面上具有齿的夹持段,其被设计成接合配合的公管的外表面。 齿被定向成允许公管在组装期间相对于配件的端部开口的第一方向移动,而是在装配接头组装之后阻止在相反方向上的移动。 在注射成型操作期间,夹紧段机械地结合到垫圈的弹性体。 环形体还包括由弹性体形成的相对柔性的部分,其与配合的公管形成唇密封区域。

    Sealing Gasket for Corrugated Pipe
    2.
    发明申请
    Sealing Gasket for Corrugated Pipe 审中-公开
    波纹管密封垫片

    公开(公告)号:US20110187059A1

    公开(公告)日:2011-08-04

    申请号:US12776776

    申请日:2010-05-10

    IPC分类号: F16L21/035 F16J15/06

    CPC分类号: F16J15/06 F16L21/035

    摘要: A sealing gasket and pipe coupling system for corrugated pipe where a male pipe end of a male section of corrugated pipe has an axially extending bore defined by a smooth inner wall fused to a corrugated outer wall having axially adjacent, annular, outwardly-extending corrugation ribs separated by corrugation valleys, each corrugation rib having a circumference. The sealing gasket has an annular gasket body with an inner circumferential region which defines a base for the gasket and an outer sealing region, the inner circumferential region of the gasket is received within a selected corrugation valley of the male pipe end. The base of the gasket body includes a pair of laterally extending lips which, when viewed in cross section, extend outwardly across the selected corrugation valley to fit larger valleys and which bend inwardly to fit narrower valleys. The base of the gasket body extends radially outward to form a main body region, the main body region having a pair of oppositely arranged wing portions which are separated from the laterally extending lips by void regions which accommodate inward bending of the lateral lips in narrower valleys.

    摘要翻译: 用于波纹管的密封垫圈和管接头系统,其中波纹管的阳部分的阳管端具有由平滑的内壁限定的轴向延伸的孔,该内壁与波纹状的外壁融合,其具有轴向相邻的环形的向外延伸的波纹肋 由波纹谷分开,每个波纹肋具有圆周。 密封垫圈具有环形垫圈体,其具有限定用于衬垫的基部的内周区域和外部密封区域,垫圈的内周区域容纳在阳管端部的选定波纹谷内。 垫片主体的底部包括一对横向延伸的唇缘,当从横截面看时,它们向外延伸穿过所选择的波谷,以适应较大的谷并向内弯曲以适应较窄的谷部。 垫片本体的基部径向向外延伸以形成主体区域,主体区域具有一对相对布置的翼部分,该翼部分通过空隙区域与侧向延伸的唇缘分离,该空隙区域适应较窄谷部中的侧唇的向内弯曲 。