Removable seal plug for closing the upper end of self-punching t fittings
    82.
    发明授权
    Removable seal plug for closing the upper end of self-punching t fittings 失效
    用于封闭自攻螺钉上端的可拆卸密封塞

    公开(公告)号:US3561298A

    公开(公告)日:1971-02-09

    申请号:US3561298D

    申请日:1969-04-09

    IPC分类号: B23B41/08 F16L41/04

    CPC分类号: F16L41/04 Y10T137/6123

    摘要: THIS INVENTION RELATES TO A REMOVABLE SEAL PLUG FOR CLOSING THE UPPER END OF A SELF-PUNCHING TO FITTING. MORE PARTICULARLY, THE INVENTION RELATES TO A SELF-PUNCHING T FITTING INCLUDING A TUBULAR BODY ADAPTED TO BE WELDED TO A PIPE, A PUNCH THREADABLY POSITIONED WITHIN THE TUBULAR BODY ADAPTABLE FOR ROTATION TO ENGAGE AND PUNCH A HOLE IN THE PIPE, AND AN IMPROVED SEAL PLUG MEMBER FOR CLOSING THE UPPER END OF THE TUBULAR BODY MEMBER, THE PLUG MEMBER SERVING TO ACCURATELY POSITION AND PREVENT THE MOVEMENT OF THE PUNCH MEMBER IN THE BODY AND TO SECURELY SEAL THE BODY AGAINST FLUID LEAKAGE.