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    • 1. 发明公开
    • Sealing gasket module for a valve
    • Dichtungsanordnungfürein通风
    • EP0937925A1
    • 1999-08-25
    • EP98102874.9
    • 1998-02-19
    • Wang, James
    • Wang, James
    • F16K5/06F16K41/02
    • F16K5/0694F16K41/026
    • A valve includes a supporting base having an inner wall defining a recess, a lug extending from the supporting base and having an inner wall defining a passage, an abutting edge formed between the inner wall of the supporting base and the inner wall of the lug, and a control shaft extending through the passage and formed with an annular flange received in the recess. A sealing gasket module (30) is received in the recess and includes a first compression ring (31) mounted around the control shaft and urged on the abutting edge, a second compression ring (32) mounted around the control shaft and urged on the first compression ring, and an abutting ring (33) mounted around the control shaft and abutting between the second compression ring and the annular flange.
    • 阀包括支撑基座,其具有限定凹部的内壁,从所述支撑基部延伸的凸耳并具有限定通道的内壁;形成在所述支撑基部的内壁和所述凸耳的内壁之间的抵接边缘, 以及控制轴,其延伸穿过所述通道并且形成有容纳在所述凹部中的环形凸缘。 密封垫片模块(30)被容纳在所述凹部中,并且包括安装在所述控制轴周围并被推压在所述抵接边缘上的第一压缩环(31),安装在所述控制轴周围并被推压在所述第一压缩环 压缩环和安装在控制轴周围并邻接在第二压缩环和环形凸缘之间的邻接环(33)。
    • 9. 发明公开
    • Tubing and method for making same
    • 它们的软管和制造方法
    • EP0987043A3
    • 2002-10-30
    • EP99122701.8
    • 1995-04-03
    • Wang, James C.
    • Wang, James C.
    • A61M25/00
    • B29C47/0023A61M25/0009A61M25/0054B29C47/0026B29C47/0028B29C47/003B29C47/023B29C47/06B29C47/065B29C47/26B29C47/266B29C47/28B29C47/92B29C2947/926B29C2947/92828B29L2031/7542
    • A method for making an elongated tube having an annular wall with an outer surface and an inner surface that defines a central passageway, the tube also having a first section comprised of a first resinous material, a second section comprised of a second resinous material, the first and second resinous materials being of different stiffness, and an intermediate section joining the first section and the second section, the intermediate section being a transition section in which the wall of the tube gradually changes from the first resinous material of the first section to the second resinous material of the second section to form a continuous unbroken tube of differential stiffness without abrupt joints, said method comprising the steps of: providing a first resinous stream of the first resinous material; providing a second resinous stream of the second resinous material; introducing the first and second resinous materials into separate flow channels in a co-extrusion head that defines a plurality of flow channels; controlling the flow of each of the first and second resinous streams into the co-extrusion head; causing the first resinous stream to join with the second resinous stream in the co-extrusion head to produce a contact volume of joint flow so as to form a wedge structure in the transition section in which the first resinous material extends into the second resinous material so that the second resinous material surrounds the wedge structure of the first material; controlling the flow of each resin stream within the co-extrusion head; and passing the resinous materials through an extrusion die to form a continuous unbroken tube of the desired length having the desired sections formed of the first and second resinous materials with the resinous materials naturally adhering to each other in the sections.