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US3644659A - Cable construction - Google Patents

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Publication number
US3644659A
US3644659A US878868A US3644659DA US3644659A US 3644659 A US3644659 A US 3644659A US 878868 A US878868 A US 878868A US 3644659D A US3644659D A US 3644659DA US 3644659 A US3644659 A US 3644659A
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Prior art keywords
shield
conductors
pairs
cable
flexible
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Expired - Lifetime
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US878868A
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Frank A Campbell
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Xerox Corp
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Xerox Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • H01B11/10—Screens specially adapted for reducing interference from external sources

Definitions

  • ABSTRACT A cable construction is disclosed comprising a flexible shield, conductor pairs arranged along the inner surface of the shield and filler strings in the interior thereof resiliently urging the conductor pairs into engagement with the shield.
  • the present invention relates to a construction for a cable, particularly for a cable designed for the transmission of digital data.
  • Modern digital data processing and computing systems are characterized by three important aspects.
  • data processing systems as a whole have become quite extensive, particularly for multiprogramming and time sharing operations.
  • Such systems are particularly characterized by an abundance of peripheral equipment.
  • the peripheral equipment is connected to a processing station or unit, or several thereof, through signal transmission cable.
  • the third important aspect is that there is a drastic increase in operating speed, so that signals to be transmitted have a considerable content in high frequency components.
  • signals that are being processed anywhere in such a system are developed in sources which are quite differently spaced from the designation.
  • signals are characterized unfortunately in many instances by a lack of uniformity in shape due to large difference in impedance in the respective signals travel paths.
  • the transmitted signals may be quite unrelated and asynchronous to each other; nevertheless, if such a cable is used, for example, to connect a particular peripheral device to a processing device systems organization and operation will be greatly facilitated as a whole if it can be established that the several signals establishing communication between these two devices and propagating through that cable are, in effect, similarly affected by that transmission.
  • a cable constructed in accordance with the invention offers uniform attenuation and similar impedance to all signals providing, for example, communication between a peripheral equipment device and the processing unit, and all cables in the system provide comparable attenuation on a unit length basis.
  • a flexible sleeve serving as an electrically conductive shield.
  • the shield may be made of metallized tape, preferably with an insulating cover.
  • Individual pairs of twisted but insulated wires or conductors, preferably with an overall insulating wrapping for each pair, are placed in that sleeve in abutment with the inner surface thereof.
  • the central region of the sleeve is filled with a flexible insulating material, such as a plurality of resilient strings. This filler urges the individual conductor pairs against the inner surface of the shield to form a layer therealong.
  • the conductors of a pair have uniform distance from the two pairs of conductors on either side as well as from the shield.
  • the capacitance of each of these pairs or wires relative to the grounded sheet is uniform and this in turn insures constant impedance for all transmission paths in the cable and as individually established by such a pair of conductors.
  • FIGURE illustrates a cross section through a cable in accordance with the preferred embodiment of the present invention.
  • Reference numeral 10 refers to an outer sheath serving as cover and protection.
  • This cover 10 is flexible and provides electric insulation.
  • sheath 10 is made of black polyvinyl chloride.
  • Sheath 10 covers in particular a metallized tape such as an aluminum Mylar tape 11 serving as the electrically conductive and grounded shield for the cable proper.
  • Elements l0 and 11 can be considered a tubular sleeve which is flexible and electrically conductive to the extent that sufficient shielding is provided for the signal conductors included in the cable.
  • the sleeve contains a plurality of pairs 12 of conductors such as wires.
  • the FIGURE illustrates altogether fifteen pairs of twisted conductors, one pair being shown in detail to include wires 13 and 14.
  • Conductors 13 and 14 may be made of aluminum, copper or the like.
  • a conductor may be a singlestrand wire, but preferably it is a multistrand copper wire covered with an insulating layer such as 14.
  • the conductors of a pair are twisted and each such twisted pair is provided, in addition, with an overall Mylar wrap 15, having primary function to prevent each pair of conductors from untwisting.
  • Mylar wrap 15 having primary function to prevent each pair of conductors from untwisting.
  • each pair of conductors appears to have approximately circular profile which is instrumental in obtaining overall and uniform average spacing of each conductor from shield 10.
  • a drain wire 17, such as a multistrand wire is disposed in the space between two neighboring ones of the conductor pairs to engage the shield sleeve 11 for making contact therewith and extending over the entire length of the cable. This way, ground potential is uniformly applied to all portions of the shield over the entire length thereof.
  • the interior of the fully expanded sleeve 10-11 is considerably larger than the space required for receiving all (l5) of these pairs 12 of wires, because the pairs are disposed as a single layer along the inner periphery of sleeve 1 l.
  • the interior or core portion of this construction is filled with plastic fillers, such as polyvinyl chloride strings or strands 16.
  • the filler strings react resiliently with the conductor pairs to cause the sleeve 10-11 to expand fully, and to urge each one of these individual pairs 12 of twisted wires against the inner wall of sleeve 11, and particularly against the shield layer 11.
  • the conductors of a pair as twisted have a particular resultant diameter d; that diameter is smaller than the diameter D of the filler strings.
  • each of the individual wires does not only have, on the average, uniform distance from the shield but this spacing is maintained even if the cable is reeled, flexed, etc. Therefore, each conductor has predictable constant capacitance to ground as well as to its neighboring conductors and signal transmission through such a cable is, therefore, very uniform because of uniform attenuation.
  • the size of the cable is controllable and determined essentially by the number of conductor pairs to be included.
  • the conductor pairs 12 shall be positioned as a type of layer extending along the interior wall of sleeve 11 and preferably without a gap. Therefore, the filler strands or strings 16 have to be selected to offer such a core which permits assembly thereon of the desired number of conductor pairs to form a gapless cover or layer" thereon. That arrangement is then placed into the approximately dimensional sleeve arrangement 10-11.
  • a cable construction particularly for the transmission of digital signals comprising:
  • signal conductors in the shield consisting of a plurality of individually insulated, twisted pairs of conductors arranged as a single layer along the interior of the tubular along the shields, there being no conductor pairs disposed hi in abutment therewith, the conductor of each and in the interior of the shield other than as part of the said all pairs having essentially similar distance, on the layer, l
  • a cable as in claim 1 the conductors of each of said pairs of the shield the conductors of a pair as twisted having a 5 provided with a common wrapping of insulation layer to I resultant diameter, and hibit untwisting, the filler urging the conductors of a wrapped insulating materlal including at least one resilient string of pair in unison against the flexible Shield.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)

Abstract

A cable construction is disclosed comprising a flexible shield, conductor pairs arranged along the inner surface of the shield and filler strings in the interior thereof resiliently urging the conductor pairs into engagement with the shield.

Description

United States Patent Campbell [54] CABLE CONSTRUCTION [72] Inventor: Frank A. Campbell, Culver City, Calif.
[73] Assignee: Xerox Corporation, Stamford, Conn.
[22] Filed: Nov. 21, 1969 [21] Appl. No.: 878,868
[52] US. Cl. ..174/27, 174/34, 174/36, 174/105 R, 174/113 C, 174/115, 174/116 [51] Int. Cl. HOlb 11/04 [58] Field of Search ..l74/105, 34, 36, 33, 27,107, 174/113, 115, 116
[56] References Cited UNITED STATES PATENTS 3,209,064 9/ 1965 Cutler 1 74/1 13 X 5] Feb. 22, 1972 3,433,890 3/ l 969 Gabriel et al. 1 74/1 13 X 3,487,540 l/l970 Brauns et al.. ,.174/34 X 3,489,844 l/ 1970 Motley ..l74/l 13 X FOREIGN PATENTS OR APPLICATIONS 764,056 12/ 1956 Great Britain 174/34 Primary Examiner-Thomas J Kozma Assistant Examiner-A. T. Grimley Attorney-Smyth, Roston & Pavitt [57] ABSTRACT A cable construction is disclosed comprising a flexible shield, conductor pairs arranged along the inner surface of the shield and filler strings in the interior thereof resiliently urging the conductor pairs into engagement with the shield.
3 Claims, 1 Drawing figure CABLE CONSTRUCTION The present invention relates to a construction for a cable, particularly for a cable designed for the transmission of digital data.
Modern digital data processing and computing systems are characterized by three important aspects. First the hardware, particularly as far as the electronic data processing equipment and components is concerned, is subject to ever increasing miniaturization so that the size of the components involved is reduced drastically particularly when compared with standards prevalent only a dozen years ago. On the other hand, data processing systems as a whole have become quite extensive, particularly for multiprogramming and time sharing operations. Such systems are particularly characterized by an abundance of peripheral equipment. The peripheral equipment is connected to a processing station or unit, or several thereof, through signal transmission cable. The third important aspect is that there is a drastic increase in operating speed, so that signals to be transmitted have a considerable content in high frequency components. As a consequence signals that are being processed anywhere in such a system are developed in sources which are quite differently spaced from the designation. Thus, such signals are characterized unfortunately in many instances by a lack of uniformity in shape due to large difference in impedance in the respective signals travel paths.
It is, therefore, a specific object of the present invention to provide a cable construction particularly for a cable destined to transmit digital signals whereby the cable is characterized by offering similar and constant impedance to signals propagating through different wires or conductors included in the cable. The transmitted signals may be quite unrelated and asynchronous to each other; nevertheless, if such a cable is used, for example, to connect a particular peripheral device to a processing device systems organization and operation will be greatly facilitated as a whole if it can be established that the several signals establishing communication between these two devices and propagating through that cable are, in effect, similarly affected by that transmission. Moreover, if different peripheral equipment devices are connected to a processing unit, impedance matching, signal recognition and signal assembly is greatly facilitated if the various cables offer accurately predictable impedance per unit cable length to any signal passing through. In other words, a cable constructed in accordance with the invention offers uniform attenuation and similar impedance to all signals providing, for example, communication between a peripheral equipment device and the processing unit, and all cables in the system provide comparable attenuation on a unit length basis.
In accordance with the present invention, it is suggested to employ a flexible sleeve serving as an electrically conductive shield. The shield may be made of metallized tape, preferably with an insulating cover. Individual pairs of twisted but insulated wires or conductors, preferably with an overall insulating wrapping for each pair, are placed in that sleeve in abutment with the inner surface thereof. The central region of the sleeve is filled with a flexible insulating material, such as a plurality of resilient strings. This filler urges the individual conductor pairs against the inner surface of the shield to form a layer therealong. As a consequence, the conductors of a pair have uniform distance from the two pairs of conductors on either side as well as from the shield. Thus, the capacitance of each of these pairs or wires relative to the grounded sheet is uniform and this in turn insures constant impedance for all transmission paths in the cable and as individually established by such a pair of conductors.
While the specification concludes with claims particularly pointing out and distinctly claiming the subject matter which is regarded as the invention, it is believed that the invention, the objects and features of the invention and further objects, features and advantages thereof will be better understood from the following description taken in connection with the accompanying drawings in which:
The FIGURE illustrates a cross section through a cable in accordance with the preferred embodiment of the present invention.
Reference numeral 10 refers to an outer sheath serving as cover and protection. This cover 10 is flexible and provides electric insulation. For example, sheath 10 is made of black polyvinyl chloride. Sheath 10 covers in particular a metallized tape such as an aluminum Mylar tape 11 serving as the electrically conductive and grounded shield for the cable proper. Elements l0 and 11 can be considered a tubular sleeve which is flexible and electrically conductive to the extent that sufficient shielding is provided for the signal conductors included in the cable.
The sleeve contains a plurality of pairs 12 of conductors such as wires. The FIGURE illustrates altogether fifteen pairs of twisted conductors, one pair being shown in detail to include wires 13 and 14. Conductors 13 and 14 may be made of aluminum, copper or the like. A conductor may be a singlestrand wire, but preferably it is a multistrand copper wire covered with an insulating layer such as 14. The conductors of a pair are twisted and each such twisted pair is provided, in addition, with an overall Mylar wrap 15, having primary function to prevent each pair of conductors from untwisting. ln frontal cross section each pair of conductors appears to have approximately circular profile which is instrumental in obtaining overall and uniform average spacing of each conductor from shield 10.
A drain wire 17, such as a multistrand wire is disposed in the space between two neighboring ones of the conductor pairs to engage the shield sleeve 11 for making contact therewith and extending over the entire length of the cable. This way, ground potential is uniformly applied to all portions of the shield over the entire length thereof.
The interior of the fully expanded sleeve 10-11 is considerably larger than the space required for receiving all (l5) of these pairs 12 of wires, because the pairs are disposed as a single layer along the inner periphery of sleeve 1 l. The interior or core portion of this construction is filled with plastic fillers, such as polyvinyl chloride strings or strands 16. The filler strings react resiliently with the conductor pairs to cause the sleeve 10-11 to expand fully, and to urge each one of these individual pairs 12 of twisted wires against the inner wall of sleeve 11, and particularly against the shield layer 11. As can readily be seen, the conductors of a pair as twisted have a particular resultant diameter d; that diameter is smaller than the diameter D of the filler strings. As a consequence, each of the individual wires does not only have, on the average, uniform distance from the shield but this spacing is maintained even if the cable is reeled, flexed, etc. Therefore, each conductor has predictable constant capacitance to ground as well as to its neighboring conductors and signal transmission through such a cable is, therefore, very uniform because of uniform attenuation.
The size of the cable is controllable and determined essentially by the number of conductor pairs to be included. The conductor pairs 12 shall be positioned as a type of layer extending along the interior wall of sleeve 11 and preferably without a gap. Therefore, the filler strands or strings 16 have to be selected to offer such a core which permits assembly thereon of the desired number of conductor pairs to form a gapless cover or layer" thereon. That arrangement is then placed into the approximately dimensional sleeve arrangement 10-11.
The invention is not limited to the embodiments described above but all changes and modifications thereof not constituting departures from the spirit and scope of the invention are intended to be included.
I claim:
1. A cable construction particularly for the transmission of digital signals comprising:
a flexible tubular, electrically conductive shield;
signal conductors in the shield, consisting of a plurality of individually insulated, twisted pairs of conductors arranged as a single layer along the interior of the tubular along the shields, there being no conductor pairs disposed hi in abutment therewith, the conductor of each and in the interior of the shield other than as part of the said all pairs having essentially similar distance, on the layer, l
average from the Closest respective inner Surface Pftion 2. A cable as in claim 1, the conductors of each of said pairs of the shield the conductors of a pair as twisted having a 5 provided with a common wrapping of insulation layer to I resultant diameter, and hibit untwisting, the filler urging the conductors of a wrapped insulating materlal including at least one resilient string of pair in unison against the flexible Shield.
diameter larger than the resultant diameter of the conductors of any of the pairs, provided as filler in the interior of the tubular shield constituting a flexible and resilient core and urging individual pairs of conductors against the inner wall of the shield so that pairs of conductors are disposed and maintained in single-layer configuration flexible core comprising a plurality of resilient cylindrical strings made of insulating material, each having diameter larger than the resultant diameter.
3. A cable as in claim 1, the insulating material forming the

Claims (3)

1. A cable construction particularly for the transmission of digital signals comprising: a flexible tubular, electrically conductive shield; signal conductors in the shield, consisting of a plurality of individually insulated, twisted pairs of conductors arranged as a single layer along the interior of the tubular shield in abutment therewith, the conductor of each and all pairs having essentially similar distance, on the average, from the closest respective inner surface portion of the shield the conductors of a pair as twisted having a resultant diameter, and insulating material including at least one resilient string of diameter larger than the resultant diameter of the conductors of any of the pairs, provided as filler in the interior of the tubular shield constituting a flexible and resilient core and urging individual pairs of conductors against the inner wall of the shield so that pairs of conductors are disposed and maintained in single-layer configuration along the shields, there being no conductor pairs disposed in the interior of the shield other than as part of the said layer.
2. A cable as in claim 1, the conductors of each of said pairs provided with a common wrapping of insulation layer to inhibit untwisting, the filler urging the conductors of a wrapped pair in unison against the flexible shield.
3. A cable as in claim 1, the insulating material forming the flexible core comprising a plurality of resilient cylindrical strings made of insulating material, each having diameter larger than the resultant diameter.
US878868A 1969-11-21 1969-11-21 Cable construction Expired - Lifetime US3644659A (en)

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Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699238A (en) * 1972-02-29 1972-10-17 Anaconda Wire & Cable Co Flexible power cable
US3789337A (en) * 1971-12-17 1974-01-29 Westinghouse Electric Corp Insulation structure for electrical apparatus
JPS56174412U (en) * 1980-05-26 1981-12-23
US4412094A (en) * 1980-05-21 1983-10-25 Western Electric Company, Inc. Compositely insulated conductor riser cable
US4461923A (en) * 1981-03-23 1984-07-24 Virginia Patent Development Corporation Round shielded cable and modular connector therefor
US4552432A (en) * 1983-04-21 1985-11-12 Cooper Industries, Inc. Hybrid cable
US4707569A (en) * 1985-06-03 1987-11-17 Japan Styrene Paper Corporation Multi-conductor cable
US4719319A (en) * 1986-03-11 1988-01-12 Amp Incorporated Spiral configuration ribbon coaxial cable
US4755629A (en) * 1985-09-27 1988-07-05 At&T Technologies Local area network cable
US4767891A (en) * 1985-11-18 1988-08-30 Cooper Industries, Inc. Mass terminable flat cable and cable assembly incorporating the cable
US4910360A (en) * 1989-01-05 1990-03-20 Noel Lee Cable assembly having an internal dielectric core surrounded by a conductor
US4937401A (en) * 1989-01-05 1990-06-26 Noel Lee Signal cable assembly including bundles of wire strands of different gauges
US4997992A (en) * 1989-06-26 1991-03-05 Low William E Low distortion cable
US5132488A (en) * 1991-02-21 1992-07-21 Northern Telecom Limited Electrical telecommunications cable
US5519173A (en) * 1994-06-30 1996-05-21 Berk-Tek, Inc. High speed telecommunication cable
US5821466A (en) * 1996-12-23 1998-10-13 Cable Design Technologies, Inc. Multiple twisted pair data cable with geometrically concentric cable groups
US5883334A (en) * 1995-06-13 1999-03-16 Alcatel Na Cable Systems, Inc. High speed telecommunication cable
US6074503A (en) * 1997-04-22 2000-06-13 Cable Design Technologies, Inc. Making enhanced data cable with cross-twist cabled core profile
US6300573B1 (en) * 1999-07-12 2001-10-09 The Furukawa Electric Co., Ltd. Communication cable
US6378283B1 (en) 2000-05-25 2002-04-30 Helix/Hitemp Cables, Inc. Multiple conductor electrical cable with minimized crosstalk
US20030021557A1 (en) * 2001-07-26 2003-01-30 Precision Interconnect Corporation Cable having signal conductors surrounding optically transmissive core remote imaging system
US20040055779A1 (en) * 2002-09-24 2004-03-25 David Wiekhorst Communication wire
US20040149484A1 (en) * 2003-02-05 2004-08-05 William Clark Multi-pair communication cable using different twist lay lengths and pair proximity control
US20040228419A1 (en) * 2003-05-12 2004-11-18 Ba-Zhong Shen Non-systematic and non-linear PC-TCM (Parallel Concatenate Trellis coded modulation)
US20050023028A1 (en) * 2003-06-11 2005-02-03 Clark William T. Cable including non-flammable micro-particles
US20050056454A1 (en) * 2003-07-28 2005-03-17 Clark William T. Skew adjusted data cable
US20050269125A1 (en) * 1997-04-22 2005-12-08 Belden Cdt Networking, Inc. Data cable with cross-twist cabled core profile
US20060131057A1 (en) * 2004-12-16 2006-06-22 Roger Lique Reduced alien crosstalk electrical cable with filler element
US20060131055A1 (en) * 2004-12-16 2006-06-22 Roger Lique Reduced alien crosstalk electrical cable with filler element
US20060131058A1 (en) * 2004-12-16 2006-06-22 Roger Lique Reduced alien crosstalk electrical cable with filler element
US20060169478A1 (en) * 2005-01-28 2006-08-03 Cable Design Technologies, Inc. Data cable for mechanically dynamic environments
US20070163800A1 (en) * 2005-12-09 2007-07-19 Clark William T Twisted pair cable having improved crosstalk isolation
US20070193769A1 (en) * 1997-04-22 2007-08-23 Clark William T Data cable with cross-twist cabled core profile
US20070209824A1 (en) * 2006-03-09 2007-09-13 Spring Stutzman Multi-pair cable with channeled jackets
US20080041609A1 (en) * 1996-04-09 2008-02-21 Gareis Galen M High performance data cable
US20090025958A1 (en) * 2002-09-24 2009-01-29 Adc Incorporated Communication wire
US20090078439A1 (en) * 2007-07-12 2009-03-26 David Wiekhorst Telecommunication wire with low dielectric constant insulator
US7511225B2 (en) 2002-09-24 2009-03-31 Adc Incorporated Communication wire
US20090173514A1 (en) * 2007-11-19 2009-07-09 Gareis Galen M Separator Spline and Cables Using Same
US20100000753A1 (en) * 2008-07-03 2010-01-07 Adc Telecommunications, Inc. Telecommunications Wire Having a Channeled Dielectric Insulator and Methods for Manufacturing the Same
US20100200269A1 (en) * 2009-02-11 2010-08-12 General Cable Technologies Corporation Separator for communication cable with shaped ends
US20100218973A1 (en) * 2009-01-30 2010-09-02 Camp Ii David P Separator for communication cable with geometric features
US20100263907A1 (en) * 2006-03-06 2010-10-21 Belden Technologies, Inc. Web for separating conductors in a communication cable
US20140367143A1 (en) * 2013-06-17 2014-12-18 Hitachi Metals, Ltd. Coaxial cable
US11264148B2 (en) * 2015-12-25 2022-03-01 Hitachi Metals, Ltd. Composite cable and composite harness
US11389093B2 (en) * 2018-10-11 2022-07-19 Masimo Corporation Low noise oximetry cable

Cited By (115)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789337A (en) * 1971-12-17 1974-01-29 Westinghouse Electric Corp Insulation structure for electrical apparatus
US3699238A (en) * 1972-02-29 1972-10-17 Anaconda Wire & Cable Co Flexible power cable
US4412094A (en) * 1980-05-21 1983-10-25 Western Electric Company, Inc. Compositely insulated conductor riser cable
JPS56174412U (en) * 1980-05-26 1981-12-23
JPS618498Y2 (en) * 1980-05-26 1986-03-17
US4461923A (en) * 1981-03-23 1984-07-24 Virginia Patent Development Corporation Round shielded cable and modular connector therefor
US4552432A (en) * 1983-04-21 1985-11-12 Cooper Industries, Inc. Hybrid cable
US4707569A (en) * 1985-06-03 1987-11-17 Japan Styrene Paper Corporation Multi-conductor cable
US4755629A (en) * 1985-09-27 1988-07-05 At&T Technologies Local area network cable
US4767891A (en) * 1985-11-18 1988-08-30 Cooper Industries, Inc. Mass terminable flat cable and cable assembly incorporating the cable
US4719319A (en) * 1986-03-11 1988-01-12 Amp Incorporated Spiral configuration ribbon coaxial cable
US4937401A (en) * 1989-01-05 1990-06-26 Noel Lee Signal cable assembly including bundles of wire strands of different gauges
US4910360A (en) * 1989-01-05 1990-03-20 Noel Lee Cable assembly having an internal dielectric core surrounded by a conductor
US4997992A (en) * 1989-06-26 1991-03-05 Low William E Low distortion cable
US5132488A (en) * 1991-02-21 1992-07-21 Northern Telecom Limited Electrical telecommunications cable
US5519173A (en) * 1994-06-30 1996-05-21 Berk-Tek, Inc. High speed telecommunication cable
US5883334A (en) * 1995-06-13 1999-03-16 Alcatel Na Cable Systems, Inc. High speed telecommunication cable
US7663061B2 (en) 1996-04-09 2010-02-16 Belden Technologies, Inc. High performance data cable
US20080041609A1 (en) * 1996-04-09 2008-02-21 Gareis Galen M High performance data cable
US20100096160A1 (en) * 1996-04-09 2010-04-22 Belden Technologies, Inc. High performance data cable
US7977575B2 (en) 1996-04-09 2011-07-12 Belden Inc. High performance data cable
US8497428B2 (en) 1996-04-09 2013-07-30 Belden Inc. High performance data cable
US8536455B2 (en) 1996-04-09 2013-09-17 Belden Inc. High performance data cable
US5821466A (en) * 1996-12-23 1998-10-13 Cable Design Technologies, Inc. Multiple twisted pair data cable with geometrically concentric cable groups
US20070193769A1 (en) * 1997-04-22 2007-08-23 Clark William T Data cable with cross-twist cabled core profile
US20090120664A1 (en) * 1997-04-22 2009-05-14 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US7534964B2 (en) 1997-04-22 2009-05-19 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US7491888B2 (en) 1997-04-22 2009-02-17 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US20110155419A1 (en) * 1997-04-22 2011-06-30 Cable Design Technologies Inc. dba Mohawk/CDT Enhanced Data cable with cross-twist cabled core profile
US20090014202A1 (en) * 1997-04-22 2009-01-15 Clark William T Data cable with cross-twist cabled core profile
US6074503A (en) * 1997-04-22 2000-06-13 Cable Design Technologies, Inc. Making enhanced data cable with cross-twist cabled core profile
US7405360B2 (en) 1997-04-22 2008-07-29 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US7696438B2 (en) 1997-04-22 2010-04-13 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US20050269125A1 (en) * 1997-04-22 2005-12-08 Belden Cdt Networking, Inc. Data cable with cross-twist cabled core profile
US7154043B2 (en) 1997-04-22 2006-12-26 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US7135641B2 (en) 1997-04-22 2006-11-14 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US6596944B1 (en) 1997-04-22 2003-07-22 Cable Design Technologies, Inc. Enhanced data cable with cross-twist cabled core profile
US20100147550A1 (en) * 1997-04-22 2010-06-17 Belden Technologies, Inc. Data cable with striated jacket
US8729394B2 (en) 1997-04-22 2014-05-20 Belden Inc. Enhanced data cable with cross-twist cabled core profile
US7964797B2 (en) 1997-04-22 2011-06-21 Belden Inc. Data cable with striated jacket
US6300573B1 (en) * 1999-07-12 2001-10-09 The Furukawa Electric Co., Ltd. Communication cable
US6378283B1 (en) 2000-05-25 2002-04-30 Helix/Hitemp Cables, Inc. Multiple conductor electrical cable with minimized crosstalk
US20030021557A1 (en) * 2001-07-26 2003-01-30 Precision Interconnect Corporation Cable having signal conductors surrounding optically transmissive core remote imaging system
US7289705B2 (en) 2001-07-26 2007-10-30 Ludlow Company Lp Cable having signal conductors surrounding optically transmissive core remote imaging system
WO2003012514A3 (en) * 2001-07-26 2003-10-23 Ludlow Co Lp Cable having signal conductors surrounding optically transmissive core for remote imaging system
WO2003012514A2 (en) * 2001-07-26 2003-02-13 The Ludlow Company Lp Cable having signal conductors surrounding optically transmissive core for remote imaging system
US9336928B2 (en) 2002-09-24 2016-05-10 Commscope Technologies Llc Communication wire
US20080066944A1 (en) * 2002-09-24 2008-03-20 Adc Incorporated Communication wire
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