Electrical conductors and methods of making same
    1.
    发明授权
    Electrical conductors and methods of making same 失效
    电导体及其制造方法

    公开(公告)号:US06313409B1

    公开(公告)日:2001-11-06

    申请号:US09048746

    申请日:1998-03-26

    IPC分类号: H01B510

    摘要: Electrical conductors according to the invention include conductors made from a plurality of strands twisted around a central conductor, where the strands are fused to the central conductor but not to each other. According to a preferred embodiment, the central conductor is coated with a coating of a first material which may be melted to fuse the central conductor to the outer strands. In another preferred embodiment, the outer strands are also coated with a second conductive material which forms a eutectic mixture with the coating on the central conductor when heated to a temperature below the melting points of the first and second conductive materials. Alternate embodiments of the invention provide a eutectic mixture by choice of strand and central conductor material and/or coating. If desired, the conductor is deformed prior to melting the coating(s) such as by drawing or swaging to form a conductor with a substantially circular cross section or by rolling or drawing to form a conductor with a substantially rectangular cross section. In still another embodiment, the conductor is formed as a coil prior to melting the coating(s). The conductors of the invention exhibit enhanced electrical and physical characteristics and are particularly well suited for use in conducting VHF and UHF signals and for making coils.

    摘要翻译: 根据本发明的电导体包括由围绕中心导体绞合的多个绞合线制成的导体,其中绞线熔合到中心导体而不是彼此熔合。 根据优选实施例,中心导体涂覆有第一材料的涂层,其可以被熔化以将中心导体熔合到外部股线。 在另一个优选实施例中,外部线股也涂覆有第二导电材料,当加热到低于第一和第二导电材料的熔点的温度时,第二导电材料与中心导体上的涂层形成共晶混合物。 本发明的替代实施例通过选择股线和中心导体材料和/或涂层来提供共晶混合物。 如果需要,导体在熔化涂层之前变形,例如通过拉伸或模锻以形成具有基本圆形横截面的导体,或通过滚动或拉伸以形成具有基本矩形横截面的导体。 在另一个实施例中,导体在熔化涂层之前形成为线圈。 本发明的导体表现出增强的电气和物理特性,并且特别适用于用于进行VHF和UHF信号并用于制造线圈。

    Electrical cables having low resistance and methods of making the same
    2.
    发明授权
    Electrical cables having low resistance and methods of making the same 失效
    电阻较小的电缆及其制造方法

    公开(公告)号:US06248955B1

    公开(公告)日:2001-06-19

    申请号:US09450879

    申请日:1999-11-29

    IPC分类号: H01B508

    摘要: An electrically conductive cable includes a number of conductive strands which are twined to form a wire rope. The wire rope is drawn through a die to reduce its diameter until the outer surface of the conductor is smooth and the cross section of the conductor is substantially circular. According to a presently preferred embodiment, the electrically conductive cable is successively drawn through four dies of decreasing diameter so that the overall diameter of the wire rope is reduced by at least approximately 18 percent. The resulting electrically conductive cable has the tensile strength advantage and the low resistance advantage of a solid conductor with the flexibility advantage of a wire rope cable. In addition, the smooth outer surface of the electrically conductive cable according to the invention is easily insulated with an extruded material.

    摘要翻译: 导电电缆包括多个导线,其缠绕形成钢丝绳。 钢丝绳通过模具拉伸以减小其直径,直到导体的外表面光滑并且导体的横截面基本上为圆形。 根据目前优选的实施例,导电电缆被连续地拉伸通过直径减小的四个模具,使得钢丝绳的总直径减小至少约18%。 所得到的导电电缆具有拉伸强度优势和具有钢绳电缆的柔性优点的固体导体的低电阻优点。 此外,根据本发明的导电电缆的光滑外表面容易用挤压材料绝缘。

    Medical devices incorporating at least one element made from a plurality of twisted and drawn wires at least one of the wires being a nickel-titanium alloy wire
    6.
    发明授权
    Medical devices incorporating at least one element made from a plurality of twisted and drawn wires at least one of the wires being a nickel-titanium alloy wire 失效
    结合至少一个元件的医疗装置,其由至少一根电线作为镍 - 钛合金线由多根绞合和拉制的线制成

    公开(公告)号:US06278057B1

    公开(公告)日:2001-08-21

    申请号:US09143751

    申请日:1998-08-31

    IPC分类号: H01B1106

    摘要: Medical devices are provided which utilize a highly flexible cable of two and preferably three or more strands of wire, at least one of which is a nickel-titanium alloy strand. The strands are twined to form a wire rope which is drawn through successive dies to reduce its diameter until the outer surface of the cable is substantially smooth. A cable of all nickel-titanium alloy strands has been found to have an improved elasticity over a superelastic nickel-titanium wire of the same diameter. The cable is used in medical devices in which increased elasticity of a wire-like element is desired. Twisted and drawn cables incorporating a strand of a radiopaque metal or alloy with one or more nickel-titanium strands may be used in devices in which radiopacity of a flexible portion of the device is desired. Twisted and drawn cables incorporating a strand of a highly electrically conductive metal or alloy with one or more nickel-titanium strands may be used in devices in which electrical conductivity of a flexible portion of the device is desired.

    摘要翻译: 提供了医疗装置,其利用两根且优选三条或更多条线的高柔性电缆,其中至少一条是镍 - 钛合金线。 绞线被缠绕以形成钢丝绳,其通过连续的模具被拉伸以减小其直径,直到电缆的外表面基本上平滑。 已经发现所有镍 - 钛合金股线的电缆具有相同直径的超弹性镍钛线的弹性改进。 电缆用于需要线状元件的增加的弹性的医疗装置中。 在不期望的装置的柔性部分的不透射线性的装置中可以使用结合有不透射线的金属或合金与一种或多种镍 - 钛股线的绞合线。 将具有一种或多种镍 - 钛绞线的高导电性金属或合金的绞合线的双绞和拉制电缆可用于需要该器件的柔性部分的导电性的器件中。

    High voltage overhead transmission line conductor with reduced wet weather corona noise and corona losses
    7.
    发明授权
    High voltage overhead transmission line conductor with reduced wet weather corona noise and corona losses 失效
    高压架空输电线路导体,减少潮湿天气的电晕噪声和电晕损耗

    公开(公告)号:US3930113A

    公开(公告)日:1975-12-30

    申请号:US47756074

    申请日:1974-06-10

    CPC分类号: H01B5/10

    摘要: An electrical conductor having the ability to absorb and store water appearing on the surface and to remove the stored water by transporting it to an expulsion site. This is achieved in one embodiment by supplying a central conductor with a porous, absorbent and electrically conducting outer layer. Similar results obtain when the strands of a multi-strand conductor are provided with azimuthal threads or grooves of a certain fineness and an additional electrochemical or chemical treatment of the surface for improved wettability.

    摘要翻译: 一种电导体,具有吸收和储存出现在表面上的水的能力,并通过将水输送到排出部位来除去储存的水。 这在一个实施例中通过向中心导体提供多孔,吸收和导电的外层来实现。 当多股导体的股线设置有具有一定细度的方位角螺纹或凹槽以及用于改善润湿性的表面的附加电化学或化学处理时获得的类似结果。

    Method for suppressing galloping in electric transmission line conductors and conductor for effecting same
    8.
    发明授权
    Method for suppressing galloping in electric transmission line conductors and conductor for effecting same 失效
    用于抑制电力传输线路导体和导体的影响的方法

    公开(公告)号:US3916083A

    公开(公告)日:1975-10-28

    申请号:US29790872

    申请日:1972-10-16

    IPC分类号: H01B5/10 H02G7/14

    CPC分类号: H02G7/14 H01B5/10

    摘要: The present invention relates to the art of electroenergetics, and more particularly to aerial electric transmission lines. Still more particularly, the invention relates to a method for suppressing galloping in aerial conductors and to a span wherein the method is realized. It is the basic object of the invention to provide a method for suppressing galloping in aerial conductors based on changing the mechanical characteristics thereof and consisting in that the conductor in a span confined by two adjacent towers or poles is divided into at least two portions. Thereafter, the mechanical characteristics of the conductor are altered by displacing the centers of gravity of its cross sections relative to the flexural centers thereof in one direction over one portion and in the opposite direction over the other portion of the span from the vertical plane going through the line of the flexural centers of the conductor cross sections. According to one of the embodiments of the invention, the span of an electric transmission line comprises a conductor provided with two eccentric weights each rigidly attached to each portion of the span and arranged on either side of the vertical plane passing through the line of the flexural centers of the conductor cross sections at an angle of 40* to 45* to said vertical plane in the gravity direction.