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    • 6. 发明申请
    • Flexible tubing with improved signal transmission and method of making
    • 柔性管道,具有改进的信号传输和制造方法
    • US20110192624A1
    • 2011-08-11
    • US13066374
    • 2011-04-13
    • Eric Carlson
    • Eric Carlson
    • H02G3/04B65H81/08
    • F16L11/081B29C53/78F16L11/127F16L11/16F16L57/02
    • A smooth-bore plastic tubing with an outer helical support bead is resistant to collapse and incorporates plural conductors disposed outside of the tubing bore and insulated both from ambient and from one another. The conductors may have a desired relatively high thermal conductivity to tidal air flow within the tubing, while also having a comparatively high thermal resistance to ambient. The conductors may be electrical conductors, or may include fiber optic conductors as well in the same tubing structure. A method for making the tubing includes extruding a molten thermoplastic ribbon with an elevated plateau portion defining at least one conductor-receiving groove. The plastic ribbon is wrapped to form a tube and at least one conductor is embedded in the groove of the plateau portion. Finally a molten thermoplastic bead is then applied atop the plateau portion and atop of the embedded conductor providing a unitary flexible tubing structure with substantially smooth inside and outside surfaces free of crevices which could retain soil or bacteria.
    • 具有外螺旋支撑珠的光滑的塑料管能够抵抗塌陷,并且包括布置在管孔外侧的多个导体,并且绝缘环境和彼此绝缘。 导体可以具有期望的相对高的导热性,同时还具有相对较高的耐环境温度的管道内的潮汐气流。 导体可以是电导体,或者可以在相同的管道结构中包括光纤导体。 用于制造管道的方法包括挤出熔融的热塑性带,其具有限定至少一个导体接收槽的升高的平台部分。 塑料带被包裹以形成管,并且至少一个导体嵌入在平台部分的凹槽中。 最后,将熔融的热塑性珠粒施加在平台部分顶部和嵌入导体的顶部,提供一体的柔性管道结构,其具有基本平滑的内部和外部表面,其中没有可能保留土壤或细菌的缝隙。