Expanding tool
    1.
    发明授权
    Expanding tool 失效
    扩展工具

    公开(公告)号:US3641798A

    公开(公告)日:1972-02-15

    申请号:US3641798D

    申请日:1970-06-01

    Inventor: PRESS IRVING D

    CPC classification number: B21D41/02 B21D39/10

    Abstract: A nonrigid portion is attached to the end of the tapered rigid mandrel of an epicyclic motion roller-type tube expander unit to enable tube bends to be located closer to the end fitting to which the tube is being attached.

    Abstract translation: 非刚性部分连接到行星式滚筒式管式膨胀机单元的锥形刚性心轴的端部,以使得管弯曲部更靠近管所附着的端部配件定位。

    High-pressure chemically resistant bellows
    2.
    发明授权
    High-pressure chemically resistant bellows 失效
    高压耐化学品

    公开(公告)号:US3633945A

    公开(公告)日:1972-01-11

    申请号:US3633945D

    申请日:1970-01-06

    CPC classification number: F16L51/027

    Abstract: A bellows formed from polytetrafluoroethylene resin is reinforced by providing substantially nonexpandable channelshaped rings surrounding each of the crests of the corrugated tube closely fitting the maximum outside diameter of the corresponding crest at least when the pipe connection is in its original unstrained condition. The rings are preferably adjustable in girth but may be fixed in the diameter.

    Abstract translation: 由聚四氟乙烯树脂形成的波纹管通过提供围绕波纹管的每个波峰的基本上不可扩散的通道形环来加强,该波纹管至少在管连接处于其原始的无约束状态时与相应波峰的最大外径紧密配合。 环优选地可以围绕可调节,但可以固定在直径上。

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