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1. 发明申请

US20080157524A1 SELF-RESTRAINED DUCTILE IRON FITTING 审中-公开
标题翻译：自我修复的铁质配件
公开(公告)号：US20080157524A1
公开(公告)日：2008-07-03
申请号：US12038544
申请日：2008-02-27
申请人： Jim Jones , Bradford G. Corbett
发明人： Jim Jones , Bradford G. Corbett
IPC分类号： F16L17/00 , B23P11/02 , B21D39/04
CPC分类号： F16L37/0925 , Y10T29/49945
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 sealing gasket body is provided with a series of integrally formed gripping segments. The gripping segments have teeth on an inner surface which are initially angled away from an outer surface of a mating male pipe. The teeth are forced into engagement with the exterior surface of the mating male pipe as the pipe joint at the fitting is assembled. The teeth are oriented to allow movement of the male pipe in a first direction relative to an end opening of the fitting during assembly, but to resist movement in a opposite direction after the fitting joint has been assembled. The combination sealing and restraining system is installed in the annular groove of the as-cast iron fitting after the iron casting operation at the factory.
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。密封衬垫体设置有一系列一体形成的夹紧段。抓握段在内表面上具有齿，其最初远离配合的公管的外表面成角度。当配件的管接头组装时，齿被迫与配合的公管的外表面接合。齿被定向成允许公管在组装期间相对于配件的端部开口在第一方向上移动，而是在装配接头组装之后阻止在相反方向上的运动。组合密封限制系统在工厂铸铁作业后安装在铸铁配件的环形槽中。

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