CN1620573A - 可调音导管及其准备可调音导管的方法 - Google Patents

可调音导管及其准备可调音导管的方法 Download PDF

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CN1620573A
CN1620573A CNA028269500A CN02826950A CN1620573A CN 1620573 A CN1620573 A CN 1620573A CN A028269500 A CNA028269500 A CN A028269500A CN 02826950 A CN02826950 A CN 02826950A CN 1620573 A CN1620573 A CN 1620573A
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electric wire
conduit
polymer tube
wall
elongate
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CN1325831C (zh
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贾森·N·莫罗
小罗伯特·M·沃德
泽布·L·卡莱
迈克尔·R·贝利
克里斯托弗·格默
乔治·博林格
斯科特·拉姆利
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Commscope Inc of North Carolina
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Abstract

本发明涉及一种可调音导管，能够传送信号，因此能够易于由调音装置探测到，而且，本发明的导管易于结合其它的导管，以提供导管的延伸的长度。调音装置包括具有内表面，外表面和预定壁厚的壁的细长聚合管。第一通道优选在细长聚合管的壁内纵向延伸，固定肋沿加长聚合管的壁的内表面纵向延伸，并且放射状位于所述通道内。连续电线在细长聚合管内与通道相符，并优选涂有涂料组分，以使电线不粘附到形成细长聚合管的聚合物熔体上。本发明还包括制造可调音导管的方法和耦合第一可调音导管与第二可调音导管的方法。

Description

可调音导管及其准备可调音导管的方法
技术领域
本发明涉及一种可调音导管，尤其涉及一种能够通过传统调音装置探测的可调音导管，其包括能够从导管中扯出电线，以便允许导管和电线耦合。
背景技术
导管通常被埋藏在地下，以提供电缆、如同轴电缆和光纤电缆的地下通道。尤其是，导管通常由塑料材料构成，所述塑料材料保护同轴电缆和光纤电缆免遭湿气和其它地下环境的侵害。尽管该电缆被安装在地下时，电缆可以设置在导管中，但也可通过牵拉电缆使其穿过导管，将其安装在导管内。
采用导管的其中一个问题是，当导管是空心的或者容纳非金属电缆，如光纤电缆时，难以在地下定位。因此，导管通常装有金属条或磁条或金属丝，以允许导管通过地面上的金属探测装置探测到。虽然这些类型的探测装置是有用的，但是它们不可能总是定位埋藏于很深地层(比5英尺更深)的导管。作为这些类型的探测装置的可选择的方案，通常使用调音装置，并且通过沿与导管有关的金属线或金属条传送信号和通过从地面上探测信号来操作。
能够通过传统的金属探测装置探测传统的导管构造，并且甚至在上面描述的调音装置包括容纳金属带或金属线的外肋。例如，日本专利申请号JP5-106765描述了包括含有导线的外肋的实施例。虽然这些类型的构造已经被使用，但是难以使导管与另一导管耦合，因为外肋阻止连接件齐平地装配到导管上。因此，湿气能够从连接处进入导管中，并且能够毁坏安装在其内的电缆。另外，在安装期间外肋能够引起一些问题，这些问题其中包括当导管通过直接穿孔或开槽方法安装时，外肋和有关联的电线能够从导管中扯出来。
设计成通过金属探测装置探测的另一导管构造包括以间歇长度提供的金属丝或金属线。例如，US6,092,558描述了这样一个实施例，其中磁条的不连续长度沿导管纵向间隔分开。US5,045,368也描述了一种类似的构造，其中沿导管的长度每隔一段距离均附有标记。虽然这类型的导管能够通过上述的金属探测装置探测，但是由于信号不能沿导管传送，因此它不可能通过传统的调音装置探测。
作为可选择的一种方案，一些导管构造使用连续长度的由金属或磁性材料构成的条或带，以便允许导管通过金属探测装置探测。例如，US5,051,034和RE34,701描述了这种类型的构造，并且使用磁性材料带，以便允许导管在地下3至5英尺范围内均能够被探测到。US5,006,086，5,017,873和5,114,517使用螺旋形围绕导管外表面的磁带。虽然在这些构造中的条或带能够通过传统的金属探测装置探测到，但是它不具有在延伸距离和现有技术中所需深度处将声音信号传送的合适的构造。
在上述说明中，现有技术中需要提供一种通过调音装置能够在延伸距离处和现有技术中所需的深度处被探测到的导管。另外，现有技术中需要提供一种能够耦合的导管，以便提供通过调音装置探测的地下导管的延伸长度。
发明内容
本发明提供一种能够将信号传送很长距离，并且易于通过探测装置探测的导管。另外，本发明的导管易于耦合，以提供导管的延伸长度。特别是，本发明使用提供声音信号的连续电线，其能够从导管中扯出，以允许导管通过在导管的电线邻近段之间形成电连接来耦合，以便延伸很长一段长度。另外，用于导管的连接件被齐平地连接并紧靠在导管的外表面，以防止湿气渗入导管内，从而防止导管内的电缆受到毁坏。本发明的导管也具有现有技术所要求的极好的压碎强度。导线也包括涂层，以便允许保护在地下环境中的导线，并且其有助于本发明导管的连续生产。
上述优点通过使用可调音导管获得，所述可调音导管包括具有内表面，外表面和预定壁厚的壁的细长聚合管。通道在细长聚合管的壁内纵向延伸，固定肋优选沿细长聚合管的壁的内表面纵向延伸，并且径向位于通道向内的位置。连续电线在细长聚合管内与通道相符，并优选涂有涂料组分，以防止电线粘附在使用来形成细长聚合管的聚合物熔体上。电线优选具有至少大约150磅的抗拉强度，并且优选是包铜钢丝，包铜铝丝，铜丝或镀锡钢丝。电线更优选是包铜钢丝。电线也优选具有从大约0.32mm至大约2.59mm的直径。电线更优选具有1.02mm的直径。根据本发明，电线能够传送声音信号，以允许导管通过声音探测装置探测，并且能够从聚合管中扯出，以允许导管被耦合。电线优选涂有由高熔化温度的聚合材料形成的涂料涂层，所述聚合材料优选具有至少大约500F的熔化温度。高熔化温度的聚合材料优选从含有含氟聚合物，聚酰胺，聚酯，聚碳酸酯，聚丙烯，聚亚安酯，聚缩醛，聚丙烯酸物，环氧树脂类和硅酮聚合物的组中选择，更优选是聚四氟乙烯。导管优选由聚乙烯或聚氯乙烯，更优选是高密度聚乙烯(HDPE)。导管也优选具有光滑的外表面，并且还包括沿细长聚合管的内表面纵向延伸的至少一个附加肋(除固定肋之外)，以有助于导管内电缆的安装。
根据本发明的选择实施例，可调音导管还包括在细长聚合管的壁内纵向延伸的第二通道。能够提供与第二通道相符的导线，例如象上述的连续导线或一对扭结的连续导线，以提供被使用来监测电缆状态的信号回路。第二固定肋也能够沿细长聚合管的壁的内表面纵向延伸，并且径向位于通道向内的位置。
本发明还包括制造可调音导管的方法，其包括推进连续电线的步骤，和以细长聚合管的形式围绕前进中的电线挤压聚合物熔体的步骤，所述细长聚合管具有预定厚度，内表面和外表面的壁，以及沿细长聚合管的壁的内表面纵向延伸的固定肋，以便电线嵌入细长聚合管的壁内，并且固定肋径向位于电线向内的位置。根据本发明，推进步骤包括推进涂有涂料组分的电线，以防止电线粘附到使用在上述挤压步骤中的聚合物熔体上。聚合物熔体通过模子和顶部的使用优选挤压成细长聚合管，其中上述顶部中的凹槽在导管的内表面上形成固定肋。电线优选被推进并使之穿过电线导向管从而进入聚合物熔体。导线，例如另外的连续电线或一对扭结的连续电线也能被推入聚合物熔体，并且聚合物熔体也能围绕前进中的电线和前进中的导线被挤压。本发明的方法也包括在挤压步骤中形成沿细长聚合管的内表面纵向延伸的附加肋，以有助于导管内电缆的安装。被推入聚合物熔体内的电线优选具有至少大约150磅的抗拉强度。特别是，电线优选是包铜钢丝，包铜铝丝，铜丝或镀锡钢丝，更优选是包铜钢丝，并且电线优选具有从大约0.32mm至大约2.59mm的直径。电线也优选涂有由聚合材料构成的涂料涂层，所述聚合材料优选从含有含氟聚合物，聚酰胺，聚酯，聚碳酸酯，聚丙烯，聚亚胺酯，聚缩醛，聚丙烯酸物，环氧树脂类和硅酮聚合物的组中选择。聚合材料优选具有至少大约500F的熔化温度，更优选是聚四氟乙烯。聚合物熔体优选挤压成具有光滑的外表面的细长聚合管。
本发明也包括耦合第一可调音导管与第二可调音导管的方法，其包括提供上述的第一可调音导管的步骤，提供上述第二可调音导管的步骤，从第一可调音导管扯出电线并穿过第一可调音导管的外表面的步骤，从第二可调音导管扯出电线并穿过第二可调音导管的外表面的步骤，机械地连接第一和第二可调音导管的步骤以及电连接来自第一可调音导管的电线和来自第二可调音导管的电线的步骤。另外，第一和第二可调音导管包括第二通道和导线，例如第二连续电线或与第二通道相符的一对扭结的连续电线，在第一和第二可调音导管内的导线也从可调音导管的外表面扯出，并且与另外的导线电连接。
在考虑到下面详细的描述和描述本发明优选和选择实施例的附图的基础上，本发明的这些和其它的特征和优点对本领域技术人员来说是显而易见的。
附图说明
图1是本发明可调音导管的剖视图。
图2是本发明图1中示出的可调音导管的侧视图。
图3是还包括另外连续的，高抗拉强度的电线的本发明选择实施例的可调音导管的剖视图。
图4是还包括一对扭结的电线的本发明选择实施例的可调音导管的剖视图。
图5简单地示出了相对于本发明优选实施例的可调音导管的制造方法。
图6是根据本发明优选实施例，沿示出使用来形成导管的操作架内部的图3的线4-4的剖视图。
图7是本发明的可调音导管的侧视图，其中电线从导管的外表面扯出。
图8是根据本发明的导管的两个邻近耦合部分的侧视图。
具体实施方式
在附图和下面详细描述中，优选实施例被详细描述，以便能够实现本发明。虽然本发明参考这些特定的实施例进行描述，但是能够理解本发明并不限于这些优选实施例。与此相反，从下面的详细描述和附图中考虑，本发明包括多个可选择的方案、修改和同等替换，这是很显然的。在附图中，同样的附图标记表示相同的部件。
图1和2示出了本发明的一个可调音导管。如这些附图所示，导管形成为一个细长聚合管10，其包括具有预定厚度14的壁12，还包括内表面16和外表面18。外表面18优选是光滑的，以便导管能够与下面更详细描述的一样有效地耦合。导管能够由任何适合的聚合材料(如塑料)和适合导管的聚合材料形成，所述聚合材料在现有技术中是公知的，如聚乙烯或聚氯乙烯。细长聚合管10优选由高密度聚乙烯(HDPE)形成。聚合材料也能够与添加剂混合，如所述添加剂为用于防护紫外线(UV)的添加剂。细长聚合管10的壁12一般具有大约0.05英寸至大约0.75英寸的预定厚度14。而且，细长聚合管10一般具有大约0.5英寸至大约6.5英寸的标称内部直径。
可调音导管优选包括沿细长聚合管10的内表面16纵向延伸的固定肋20。如图1和2所示，固定肋20与细长聚合管10是一个整体，并且由与构成加长聚合管的相同材料构成。当电线从下面更详细描述的导管中扯出时，固定肋20维持导管的壁厚14，以便能够承受由导管的安装、使用和运输带来的力。固定肋20一般从细长聚合管10的内表面16延伸，以便从电线到固定肋的内边缘23的距离22至少与壁厚14的厚度相当。固定肋20也径向位于使用在本发明的电线向内的位置。图1和2所示的固定肋20大致是半圆柱形(如弧形剖面)，但是只要提供导管壁12所需要的数值和稳定性，也可以是矩形或梯形。除了固定肋20之外，导管包括沿细长聚合管10的内表面16纵向延伸的附加肋(未示出)，并且与细长聚合管是一个整体，通过减少细长聚合管的内表面和电缆之间的接触面积，以有助于导管内电缆的安装。
如图1和2所示，可调音导管包括沿加长聚合管10的长度纵向延伸的电线24，并且与细长聚合管10的壁12内纵向延伸的通道相符。电线24沿细长聚合管10的长度连续延伸，并且嵌入加长聚合管的壁12内。特别是，电线24一般完全设置在细长聚合管10的壁12内。电线24优选平行于细长聚合管10的中心纵向轴A延伸。
电线24具有足够的抗拉强度和延伸率，以允许电线从细长聚合管10的外表面18中扯出(如通过使用一对钳子)。使用于本发明的电线24优选具有一根据美国材料实验协会(ASTM)方法B869所测量的至少大约为150磅的抗拉强度。另外，电线24优选具有一根据美国材料实验协会(ASTM)方法B3和B869所测量的至少大约为1％的延伸率。电线24优选是一根包铜钢丝，包铜铝丝，铜丝或镀锡钢丝(包锡的铜)。电线24更特别是一根包铜钢丝。电线24优选具有一个大约从0.32mm(28gauge)至2.59mm(10gauge)的直径，更特别是一根具有1.02mm(18gauge)直径的包铜钢丝。
与上面所提及的一样，电线24沿细长聚合管10的长度连续延伸，因此它能够沿导管长度传送声音信号，以允许从地面上通过调音装置探测地下的导管。此外，因为本领域技术人员所理解的与信号传送有关的“趋肤效应(skin effect)”，所以信号沿电线24的外表面26传送，因而能够利用与本发明一起使用的优选电线的铜部分的传导性。因此导管的电线24能够将信号传送与现有技术所需的很长一段距离(如至少5英里)。已经披露更大直径的电线24(如18gauge)比更小直径的电线能够将声音信号传送更长的距离。而且，更大直径的电线24比更小直径的电线更粗，因此当与其它的导管耦合时，能够更有效地扯出。
电线24涂有涂料组分的涂层30。涂层30一般具有从大约1到15毫英寸的厚度，并且更优选是大约8毫英寸。涂层30由防止电线24粘附聚合物熔体的材料形成，所述聚合物熔体使用来形成细长聚合管10。因此，涂层30一般由具有聚合物熔体的温度之上的熔化温度的聚合材料形成，以便在细长聚合管10形成过程中不被熔化。涂层30优选由含氟聚合物(如聚四氟乙烯(PTFE)，氟化乙丙烯(FEP)，乙烯-三氟乙烯(ethylenetrifluoroethylene)(ETFE)，和乙烯-氯三氟乙烯(ethylenechlorotrifluoroethylene)(ECTFE)，聚氟乙烯(PVF)和聚偏氟乙稀(PVDF)；聚酰胺(如尼龙)；聚酯(如聚对苯二甲酸乙二醇酯(PET))；聚碳酸酯；聚丙烯；聚亚安酯；聚缩醛；聚丙烯酸物；环氧树脂类；硅酮聚合物；和其混合物形成。使用在涂层中的高熔化温度的聚合材料具有至少大约500F的熔化温度。涂层30更优选由含氟聚合物形成，并且更优选为聚四氟乙烯(TEFLON)。更有利地是，由于电线24涂有聚四氟乙烯，因此当其从导管中扯出并与下面详细描述的邻近导管电连接到电线上时，也能够保护电线24免遭地下环境的毁坏。特别是，涂层30优选提供电线24的耐腐蚀性。
虽然在图1和2中没有示出，但是本发明的导管包括一个或更多个电缆，如同轴电缆，光纤电缆，一对弯曲电缆，电学电缆，支持或吊线缆，或其它类似电缆。在调音装置被使用来定位空心导管(不包括任何电缆)或定位包含非金属电缆，如用作不需要使用本发明的导管就能在地下被探测到的金属电缆的光纤电缆的导管时，本发明的优点是很显然的。尽管如此，本发明的导管能够被使用来容纳金属电缆，如同轴电缆。
图3和4示出了根据本发明另一选择实施例的可调音导管。如图3和4所示，可调音导管还包括导线，如第二连续电线32(图3)或一对扭结的连续电线34(图4)，所述导线沿细长聚合管10的长度纵向延伸。导线与在细长聚合管10的壁12内纵向延伸的通道相符，并且显然不同于与电线24相符的通道。导线沿细长聚合管10的长度连续延伸，并且嵌入加长聚合管的壁12内。特别是，导线一般完全设置在细长聚合管10的壁12内。导线优选平行于细长聚合管10的中心纵向轴A延伸。如图3和4所示，可调音导管也可以包括固定肋33，其径向位于与固定肋20相同方式使用在本发明中的导线向内的位置。
同电线24一样，图3示出的电线32具有足够的抗拉强度和延伸率，以允许电线从细长聚合管10的外表面18中扯出。电线32优选具有一根据美国材料实验协会(ASTM)方法B869所测量的至少大约为150磅的抗拉强度。另外，电线24优选具有一根据美国材料实验协会(ASTM)方法B3和B869所测量的至少大约为1％的延伸率。电线32优选是一根包铜钢丝，包铜铝丝，铜丝或镀锡钢丝(包锡的铜)。电线32更特别是一根包铜钢丝。电线32优选具有一个大约从0.32mm(28gauge)至2.59mm(10gauge)的直径，电线32更特别是一根具有1.02mm(18gauge)直径的包铜钢丝。电线32也优选涂有一层象上述的电线24的涂料组分一样的涂料组分35。
如图4所示的一对扭结连续电线34中的每一根电线36和37优选具有足够的抗拉强度和延伸率，以允许电线从细长聚合管10的外表面18中扯出。例如，使用在一对扭结连续电线34中的连续电线36和37能够由上述关于电线24的电线形成。另外，电线36和37优选涂有一层象上述的关于电线24的涂料组分一样的涂料组分38和39。
与上述提及的一样，电线32和一对扭结的电线34沿细长聚合管10的长度连续延伸。因此，电线32和一对扭结的电线34提供被使用来监测电缆状态的信号的回路。例如，电线32和一对扭结的电线34可以与时域反射计(TDR)装置一起使用来确定沿导管的长度方向上是否有危险点。就像本领域技术人员所理解的那样，TDR装置是具有示波器型的显示器的仪表，其能够沿电缆线发射脉冲，并测量电缆中的不相容性。脉冲反射回来，以精确地确定电缆中的断线或其它问题的位置。TDR装置大大减少了在在电缆中进行物理定位问题所需的时间。
图5示出了用于制造本发明可调音导管的优选方法的实施例。如图5所示，电线24从供带盘上拉出，并且直通电线导向槽42。然后，电线24穿过润滑电线以在下游进一步处理的润滑装置44。接着，已润滑的电线24进入导向架46，其通过流动槽(未示出)与挤压装置48相通。虽然图5未示出，但是第二电线32或一对扭结电线34也能够从供带盘上(未示出)拉出，直通电线导向槽，润滑并以在此描述的方式相对于电线24进入导向架46，以制造图3和4所示的可调音导管。
聚合材料和任何添加剂如着色剂，使用来形成细长聚合管10(和固定肋20)，并且被喂送到挤压装置48，如直通漏斗(未示出)。在本发明的优选实施例中，聚合材料包括上述的高密度聚乙烯。挤压装置48在使用来形成细长聚合管10的聚合材料熔化温度之上的高温下操作，以提供聚合物熔体。例如，在本发明的优选实施例中，其中导管由高密度聚乙烯构成，挤压装置48在从大约300F至大约500F的温度下操作。
图6详细示出了本发明的导管的形成。电线导管50输送电线24到导向架46的顶部54和模子56之间的环形隙52，当挤压装置48输送聚合物熔体到环形隙并通过流动通道(未示出)。顶部54和模子56形成环形隙52，并且使聚合物熔体成管形，以便形成细长聚合管10。特别是，顶部54呈细长聚合管10的内表面16的形状，但是下模56呈加长聚合管的外表面18的形状。设置在顶部54中的凹槽60在导管中形成固定肋20。虽然未示出，但是另外的凹槽能够设置在顶部54中，以便沿细长聚合管10的内表面16提供另外的肋，以有助于导管内电缆的安装。聚合物熔体环绕电线24形成，电线嵌入细长聚合管10的壁12中。在电线上涂有涂料组分的涂层30和润滑剂作用到电线上，以优选保护电线24粘附聚合物熔体，并且有助于本发明的导管的形成。
再次参考图5，导管离开导向架46，进入利用水进行冷却导管的冷却槽62，以允许其变硬。接着导管进入卷线盘64。导管能够储存或卷在卷线盘64上，并且易于通过从卷线盘上展开导管来安装。
与上述提及的一样，本发明的导管易于耦合其它的导管。特别是，如图7所示，通过垂直于轴A的方向62在导电线作用一个力，电线24能够从细长聚合管10的外表面18扯出。与上面描述的一样，使用在本发明中的优选电线24具有足够的抗拉强度和延伸率，以便从高密度聚乙烯导管扯出。一旦电线24从导管扯出时，导管能够耦合临近的导管。
与图8所示的一样，第一导管70与第二导管72导管耦合。连接件74固定在第一导管70和第二导管72上，以提供导管的临近段之间的连接。从第一导管70扯出的电线76和从第二导管72扯出的电线78电连接或通过使用合适的装置，如电连接件80彼此耦合。如果第一导管70和第二导管72包括如图3和4所示的电线32或一对扭结的电线34，电线或一对扭结的电线也能够从导管扯出，并且以关于电线76和78描述的方式电连接。根据本发明，因为本发明的导管具有光滑的外表面，所以导管连接件74齐平地安装到第一导管70和第二导管72的外表面。与现有技术所理解的一样，第一导管70，第二导管72，导管连接件74，电线76，电线78和电连接件80能够通过被加热的热缩塑料包膜随意地卷绕，以允许在导管周围收缩来防止湿气沿导管连接件74进入导管。
具有使用在现有技术中的传统调音装置的本发明导管能够有利地被探测。特别是，当本发明的导管埋藏在地下时，能够通过调音装置探测，所述调音装置能够沿电线24传送信号，并从地上探测信号。因此，本发明的导管通过使用调音装置能够在地下10英尺，甚至更深的地方探测。而且，本发明的导管也能通过金属探测装置在较低的地下(如3-5英尺)探测，在这些地方这些类型的装置是有用的。另外通过调音装置，如调音装置探测，因为与上面描述的一样，本发明导管能够易于耦合，所以本发明导管能够探测到地下很深的地方，如与现有技术所需要的5-10英里。此外，导管包括电线32或一对扭结的电线34，并且被使用来提供信号的回路，以确定沿电缆存在的危险点。
在阅读本发明的上面描述和回顾附图的基础上，能够理解本领域的技术人员能够作出各种变化和变更。这些变化和变更包括在权利要求书的精神和范围内。

Claims (26)

1.一种可调音导管，包括：
一具有内表面、外表面和预定壁厚的壁的细长聚合管；和一在细长聚合管的壁内纵向延伸的第一通道；
一在细长聚合管内与第一通道相符的连续电线，所述电线涂有涂料组分，以使电线不粘附到用来形成细长聚合管的聚合物熔体上；
上述的连续电线能够传送声音信号，以允许导管通过声音探测装置被探测到，并且还能够从聚合管中扯出和能够保持连续，以允许导管和电线耦合。
2.如权利要求1所述的可调音导管，还包括一沿细长聚合管的壁的内表面纵向延伸的、并且径向位于所述通道向内的位置的第一固定肋。
3.如权利要求2所述的可调音导管，还包括至少一沿细长聚合管的壁的内表面纵向延伸的附加肋，以有助于导管内电缆的安装。
4.如权利要求1-3任一项所述的可调音导管，其中涂料组分由聚合材料形成，所述聚合材料从包含含氟聚合物，聚酰胺，聚酯，聚碳酸酯，聚丙烯，聚亚胺酯，聚缩醛，聚丙烯酸物，环氧树脂类和硅酮聚合物的组中选择。
5.如权利要求4所述的可调音导管，其中涂料组分由具有至少大约500F熔化温度的聚合材料形成。
6.如权利要求5所述的可调音导管，其中涂料组分由聚四氟乙烯形成。
7.如权利要求1-6任一项所述的可调音导管，其中连续电线具有至少大约150磅的抗拉强度。
8.如权利要求7所述的可调音导管，其中连续电线从一组包含包铜钢丝，包铜铝丝，铜丝或镀锡钢丝中选择。
9.如权利要求7所述的可调音导管，其中连续电线为包铜钢丝。
10.如权利要求7-9任一项所述的可调音导管，其中连续电线具有从大约0.32mm至大约2.59mm的直径。
11.  如权利要求1-10任一项所述的可调音导管，其中管的外表面是光滑的。
12.如权利要求1-11任一项所述的可调音导管，还包括在细长聚合管的壁内纵向延伸的第二通道，以及从包含连续电线和与细长聚合管内的第二通道相符的一对扭结连续电线中的组中选择的导线。
13.如权利要求12所述的可调音导管，还包括：沿细长聚合管的壁的内表面纵向延伸的，并且径向位于所述第二通道向内的位置的第一固定肋；以及沿细长聚合管的壁的内表面纵向延伸的、并且径向位于所述第二通道向内的位置的第二固定肋，。
14.一种制造可调音导管的方法，包括如下步骤：
推进连续电线；
以细长聚合管的形式围绕前进中的电线挤压聚合物熔体，所述细长聚合管具有预定厚度、内表面和外表面的壁，以及沿细长聚合管的壁的内表面纵向延伸的固定肋，以便电线嵌入加长聚合管的壁内，并且固定肋径向位于所述电线向内的位置；
其中连续电线涂有涂料组分，以防止电线粘附到在所述挤压步骤中的聚合物熔体上。
15.如权利要求14所述的方法，其中所述推进步骤包括推进涂有由聚合材料形成的涂料组分的连续电线，所述聚合材料从包含含氟聚合物，聚酰胺，聚酯，聚碳酸酯，聚丙烯，聚亚胺酯，聚缩醛，聚丙烯酸物，环氧树脂类和硅酮聚合物的组中选择。
16.如权利要求15所述的方法，其中所述推进步骤包括推进涂有由聚合材料形成的涂料组分的连续电线，所述聚合材料具有至少大约500F的熔化温度。
17.如权利要求16所述的方法，其中所述推进步骤包括推进涂有由聚四氟乙烯形成的涂料组分的连续电线。
18.如权利要求14-17任一项所述的方法，其中所述挤压步骤包括通过使用模和顶部形成细长聚合管的聚合物熔体，其中所述顶部内的凹槽形成导管内的固定肋。
19.如权利要求14-18任一项所述的方法，其中所述推进步骤包括推进电线使之穿过电线导管并进入聚合物熔体。
20.如权利要求14-19任一项所述的方法，其中所述挤压步骤还包括形成沿细长聚合管的内表面纵向延伸的附加肋，以有助于导管内电缆的安装。
21.如权利要求14-20任一项所述的方法，其中所述推进步骤包括推进具有至少大约150磅抗拉强度的连续电线。
22.如权利要求21所述的方法，其中所述推进步骤包括推进连续电线，所述连续电线从包含包铜钢丝，包铜铝丝，铜丝或镀锡钢丝的组中选择。
23.如权利要求21所述的方法，其中所述推进步骤包括推进一包铜钢丝。
24.如权利要求21-23任一项所述的方法，其中所述推进步骤包括推进具有一从大约0.32mm至大约2.59mm的直径的连续电线。
25.如权利要求21-24任一项所述的方法，其中所述挤压步骤包括以具有光滑外表面的细长聚合管的形式挤压聚合物熔体。
26.如权利要求14-25任一项所述的方法，还包括下列步骤：
推进从含有连续电线和一对扭结连续电线的组中选择的导线；
其中所述挤压步骤包括围绕前进中的电线和前进中的导线以细长聚合管的形式挤压聚合物熔体，所述细长聚合管具有预定厚度、内表面和外表面的壁，以及沿细长聚合管的壁的内表面纵向延伸的固定肋，以便电线和导线嵌入细长聚合管的壁内，并且固定肋径向位于所述电线向内的位置。
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US20040262023A1 (en) 2004-12-30
CA2467823C (en) 2010-07-20
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CA2467823A1 (en) 2003-05-30
US20060210750A1 (en) 2006-09-21
WO2003044412A1 (en) 2003-05-30
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US7820090B2 (en) 2010-10-26
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