Method of making twisted pairs of insulated metallic conductors for
transmitting high frequency signals
    1.
    发明授权
    Method of making twisted pairs of insulated metallic conductors for transmitting high frequency signals 失效
    制造用于传输高频信号的绝缘金属导线双绞线的方法

    公开(公告)号:US5314712A

    公开(公告)日:1994-05-24

    申请号:US976596

    申请日:1992-11-16

    摘要: Methods and apparatus are provided for providing an electrically matched pair (20) of insulated metallic conductors (21, 21). Insulation is applied to successive portions of a length of wire-like metallic conductor (22) after which a colorant material (37) is applied to the surface of a plastic insulation material of a first portion of the length of the metallic conductor which is being moved along a path of travel. Facilities are provided for shielding a supply of the colorant material from the moving insulated metallic conductor and for then exposing a second portion of the length of the insulated metallic conductor to a different colorant material. The insulation and the colorant materials and their disposition with respect to the insulation are such that the dielectric constant of one insulated metallic conductor of the pair is substantially equal to that of the other. The first and second portions of the length of the insulated metallic conductor are separated from each other and are twisted together to provide an electrically matched pair.

    摘要翻译: 提供了用于提供绝缘金属导体(21,21)的电配对对(20)的方法和装置。 绝缘被施加到一段长度的线状金属导体(22)的连续部分,之后将着色剂材料(37)施加到金属导体长度第一部分的塑料绝缘材料的表面 沿着旅途的方向行进。 设置用于屏蔽来自移动绝缘金属导体的着色剂材料的供应,然后将绝缘金属导体的长度的第二部分暴露于不同的着色剂材料。 绝缘体和着色剂材料及其相对于绝缘体的布置使得该对中的一个绝缘金属导体的介电常数基本上等于另一个的绝缘金属导体的介电常数。 绝缘金属导体的长度的第一和第二部分彼此分离并且被扭绞在一起以提供电配对。

    Twisted pairs of insulated metallic conductors for transmitting high
frequency signals
    2.
    发明授权
    Twisted pairs of insulated metallic conductors for transmitting high frequency signals 失效
    用于发送高频信号的绝缘金属导体的双绞线

    公开(公告)号:US5187329A

    公开(公告)日:1993-02-16

    申请号:US722786

    申请日:1991-06-28

    摘要: Methods and apparatus are provided for providing an electrically matched pair (20) of insulated metallic conductors (21,21). Insulation is applied to successive portions of a length of wire-like metallic conductor (22) after which a colorant material (37) is applied to the surface of a plastic insulation material of a first portion of the length of the metallic conductor which is being moved along a path of travel. Facilities are provided for shielding a supply of the colorant material from the moving insulated metalic conductor and for then exposing a second portion of the length of the insulated metallic conductor to a different colorant material. The insulation and the colorant materials and their disposition with respect to the insulation are such that the dielectric constant of one insulated metallic conductor of the pair is substantially equal to that of the other. The first and second portions of the length of the insulated metallic conductor are separated from each other and are twisted together to provide an electrically matched pair.

    Methods of and apparatus for making an insulated transmission medium
    3.
    发明授权
    Methods of and apparatus for making an insulated transmission medium 失效
    制造绝缘传输介质的方法和设备

    公开(公告)号:US5024864A

    公开(公告)日:1991-06-18

    申请号:US429265

    申请日:1989-10-30

    IPC分类号: B05B13/02 H01B13/16 H01B13/34

    摘要: Methods and apparatus are provided for applying a colorant material to the surface of a plastic insulation material which has been applied to an elongated material such as a metallic conductor (22) or an optical fiber which is being moved at any of a wide range of speeds along a path of travel. The coolant material is applied by nozzles which are staggered along the path of travel and which direct the colorant into engagement with the plastic insulation material at different radial directions. A first plurality of nozzles (46--46) each cause the colorant to be in a spray pattern (45) which is in the area of a plane. Advantageously, those nozzles cooperate to stabilize the conductor and prevent undulations thereof as the conductor is moved along its path of travel. A second plurality of nozzles (50--50) cause the colorant to be in a solid conical pattern (53). The first and the second pluralities of nozzles are effective to cause substantially all the surface area of the plastic insulation on successive increments of length of the conductor to be covered with the colorant material.

    摘要翻译: 提供了将着色剂材料施加到塑料绝缘材料的表面上的方法和装置,所述塑料绝缘材料的表面被施加到诸如金属导体(22)或细长材料的细长材料,所述金属导体(22)或光纤在任何宽的速度范围内移动 沿途旅行。 冷却剂材料通过沿行进路径交错的喷嘴施加,并且使着色剂在不同径向方向上与塑料绝缘材料接合。 第一多个喷嘴(46-46)各自使得着色剂处于位于平面区域中的喷射图案(45)中。 有利地,这些喷嘴协调以使导体稳定并且防止其导体沿其行进路径移动。 第二多个喷嘴(50-50)使得着色剂处于固体圆锥形图案(53)中。 第一和第二多个喷嘴有效地使塑料绝缘体的基本上所有的表面积在导体的长度的连续增量上被着色剂材料覆盖。

    Fire resistant cable for use in local area network
    4.
    发明授权
    Fire resistant cable for use in local area network 失效
    用于局域网的防火电缆

    公开(公告)号:US5600097A

    公开(公告)日:1997-02-04

    申请号:US334657

    申请日:1994-11-04

    CPC分类号: H01B7/295

    摘要: A fire retardant cable for use primarily as a riser cable in buildings has a plurality of groups of twisted pairs of conductors arranged in a "honeycomb" structure. Each conductor comprises a metallic conducting member encased in a single layer of a non-flame retardant polyolefin material such as high density polyethylene. The groups of conductors are surrounded by a jacket of flame retardant poly(vinyl chloride) material.

    摘要翻译: 主要用作建筑物中的立管电缆的阻燃电缆具有以“蜂窝状”结构排列的多组绞合线对。 每个导体包括包封在单层非阻燃聚烯烃材料如高密度聚乙烯中的金属导电构件。 导体组由阻燃聚(氯乙烯)材料夹克包围。

    Methods of and apparatus for applying a coating material to elongated
material
    5.
    发明授权
    Methods of and apparatus for applying a coating material to elongated material 失效
    将涂料施加到细长材料的方法和装置

    公开(公告)号:US4877645A

    公开(公告)日:1989-10-31

    申请号:US160891

    申请日:1988-02-26

    摘要: Methods and apparatus are provided for applying a colorant material to the surface of a plastic insulation material which has been applied to an elongated material such as a metallic conductor (22) or an optical fiber which is being moved at any of a wide range of speeds along a path of travel. The colorant material is applied by nozzles which are staggered along the path of travel and which direct the colorant into engagement with the plastic insulation material at different radial directions. A first plurality of nozzles (46--46) each cause the colorant to be in a spray pattern (45) which is in the area of a plane. Advantageously, those nozzles cooperate to stabilize the conductor and prevent undulations thereof as the conductor is moved along its path of travel. A second plurality of nozzles (50--50) cause the colorant to be in a solid conical pattern (53). The first and the second pluralities of nozzles are effective to cause substantially all the surface area of the plastic insulation on successive increments of length of the conductor to be covered with the colorant material.

    Methods of and apparatus for heating a moving metallic strand material
    6.
    发明授权
    Methods of and apparatus for heating a moving metallic strand material 失效
    用于加热移动的金属线材料的方法和装置

    公开(公告)号:US4818311A

    公开(公告)日:1989-04-04

    申请号:US5711

    申请日:1987-01-21

    IPC分类号: C21D9/62 H05B3/00 H01B13/00

    CPC分类号: C21D9/62 H05B3/0009

    摘要: During the heating of a moving wire (21) such as when the wire is being aaled, the wire is heated in such a manner that the energy applied to each successive increment of length of the wire is substantially constant. This is accomplished by causing an integral number of half cycles of alternating curent to be applied to each successive increment of length of the wire as the increments are moved from one sheave to another in an annealer (20). In one embodiment, the integral number of half cycles is achieved by adjusting the speed at which the wire is being advanced between two sheaves of the annealer in a manufacturing line. This also may be accomlished by adjusting the distance between the sheaves in an annealing leg of the annealer, or by adjusting the frequency of the applied power source.

    摘要翻译: 在电线(21)的加热期间,例如当电线退火时,电线以这样的方式加热,使得施加到电线长度的每个连续增量的能量基本上是恒定的。 这是通过在退火炉(20)中随着增量从一个滑轮移动到另一个滑轮而使得整数倍的交替切割的半个周期被应用于线的长度的每个连续增量。 在一个实施例中,半周期的整数是通过调整生产线中退火炉的两个滑轮之间的导线正在前进的速度来实现的。 这也可以通过调整退火炉的退火部分中的滑轮之间的距离,或者通过调节所施加的动力源的频率来实现。

    High speed transmission patch cord cable
    7.
    发明授权
    High speed transmission patch cord cable 有权
    高速传输跳线电缆

    公开(公告)号:US6096977A

    公开(公告)日:2000-08-01

    申请号:US146806

    申请日:1998-09-04

    IPC分类号: H01B11/00 H01B7/28

    CPC分类号: H01B11/005

    摘要: An electrical cable is disclosed in which at least two pairs of insulated conductors are bound by a substantially circular jacket. The conductors in one of the pairs are twisted or rotated about one another in a spiral pattern at a frequency corresponding to a first twist lay or length. The conductors in a second pair are also twisted about one another at a frequency corresponding to a second twist lay. Finally, the two pairs of conductors are stranded about one another at a frequency corresponding to a strand lay. The substantially circular jacket resists the tendency to jam cable processing machines (e.g., a connectorization machine) when being dispensed from a pay-off reel, which is a common problem in prior art patch cord designs. As a result, the cable reduces manufacturing costs. In addition, the cable provides improved electrical performance, as measured by several performance standards, over prior art cable designs.

    摘要翻译: 公开了一种电缆,其中至少两对绝缘导体由基本上圆形的外壳结合。 一对中的导体以对应于第一扭曲或长度的频率以螺旋图案彼此扭转或旋转。 第二对中的导体也以对应于第二捻线的频率彼此扭转。 最后,两对导体以对应于绞线的频率彼此绞合。 基本上圆形的外壳在从发放卷轴分配时阻止电缆加工机(例如,连接机)的倾向,这是现有技术的接插线设计中的常见问题。 因此,电缆降低了制造成本。 此外,根据现有技术的电缆设计,电缆提供了通过若干性能标准测量的改进的电性能。