CA2135952A1 - Methods of making telecommunications cable - Google Patents

Methods of making telecommunications cable

Info

Publication number
CA2135952A1
CA2135952A1 CA002135952A CA2135952A CA2135952A1 CA 2135952 A1 CA2135952 A1 CA 2135952A1 CA 002135952 A CA002135952 A CA 002135952A CA 2135952 A CA2135952 A CA 2135952A CA 2135952 A1 CA2135952 A1 CA 2135952A1
Authority
CA
Canada
Prior art keywords
pair
methods
making
polymeric layer
telecommunications cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002135952A
Other languages
French (fr)
Other versions
CA2135952C (en
Inventor
Jorh-Hein Walling
Gavriel L. Vexler
Clement Gagnon
Benoit Arpin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nordx CDT Inc
Original Assignee
Northern Telecom Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to CA002135952A priority Critical patent/CA2135952C/en
Priority to US08/343,855 priority patent/US5658406A/en
Publication of CA2135952A1 publication Critical patent/CA2135952A1/en
Application granted granted Critical
Publication of CA2135952C publication Critical patent/CA2135952C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
    • H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/156—Coating two or more articles simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3462—Cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Communication Cables (AREA)

Abstract

Method of making a twisted conductor wire unit in which each wire of the pair is individually insulated. The twisted pair is provided with an outer extruded polymeric layer while a vacuum is applied to the pair at the extrusion position. The vacuum draws the polymeric layer down onto the pair and forces the insulated wires together along the length of the unit. This avoids spaces being provided between the insulated wires in the finished structure and provides a substantially constant distance between the wires to improve electrical and cross-talk characteristics.
CA002135952A 1994-11-16 1994-11-16 Methods of making telecommunications cable Expired - Fee Related CA2135952C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002135952A CA2135952C (en) 1994-11-16 1994-11-16 Methods of making telecommunications cable
US08/343,855 US5658406A (en) 1994-11-16 1994-11-17 Methods of making telecommunications cable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002135952A CA2135952C (en) 1994-11-16 1994-11-16 Methods of making telecommunications cable
US08/343,855 US5658406A (en) 1994-11-16 1994-11-17 Methods of making telecommunications cable

Publications (2)

Publication Number Publication Date
CA2135952A1 true CA2135952A1 (en) 1996-05-17
CA2135952C CA2135952C (en) 2001-08-14

Family

ID=25677620

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002135952A Expired - Fee Related CA2135952C (en) 1994-11-16 1994-11-16 Methods of making telecommunications cable

Country Status (2)

Country Link
US (1) US5658406A (en)
CA (1) CA2135952C (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7405360B2 (en) * 1997-04-22 2008-07-29 Belden Technologies, 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
US6074503A (en) 1997-04-22 2000-06-13 Cable Design Technologies, Inc. Making enhanced data cable with cross-twist cabled core profile
US6091025A (en) 1997-07-29 2000-07-18 Khamsin Technologies, Llc Electrically optimized hybird "last mile" telecommunications cable system
US6684030B1 (en) 1997-07-29 2004-01-27 Khamsin Technologies, Llc Super-ring architecture and method to support high bandwidth digital “last mile” telecommunications systems for unlimited video addressability in hub/star local loop architectures
US6239379B1 (en) 1998-07-29 2001-05-29 Khamsin Technologies Llc Electrically optimized hybrid “last mile” telecommunications cable system
US6506976B1 (en) * 1999-09-14 2003-01-14 Avaya Technology Corp. Electrical cable apparatus and method for making
US6584251B1 (en) * 2000-05-23 2003-06-24 Alcatel Solid stranding flextube unit
US7015397B2 (en) * 2003-02-05 2006-03-21 Belden Cdt Networking, Inc. Multi-pair communication cable using different twist lay lengths and pair proximity control
US7221714B2 (en) * 2003-05-12 2007-05-22 Broadcom Corporation Non-systematic and non-linear PC-TCM (Parallel Concatenate Trellis Coded Modulation)
US7244893B2 (en) * 2003-06-11 2007-07-17 Belden Technologies, Inc. Cable including non-flammable micro-particles
US20040256139A1 (en) * 2003-06-19 2004-12-23 Clark William T. Electrical cable comprising geometrically optimized conductors
GB2419225B (en) * 2003-07-28 2007-08-01 Belden Cdt Networking Inc Skew adjusted data cable
US7358436B2 (en) 2004-07-27 2008-04-15 Belden Technologies, Inc. Dual-insulated, fixed together pair of conductors
US7208683B2 (en) * 2005-01-28 2007-04-24 Belden Technologies, Inc. Data cable for mechanically dynamic environments
US7449638B2 (en) * 2005-12-09 2008-11-11 Belden Technologies, Inc. Twisted pair cable having improved crosstalk isolation
US7696437B2 (en) * 2006-09-21 2010-04-13 Belden Technologies, Inc. Telecommunications cable
US9418775B2 (en) 2008-03-19 2016-08-16 Commscope, Inc. Of North Carolina Separator tape for twisted pair in LAN cable
US9978480B2 (en) 2008-03-19 2018-05-22 Commscope, Inc. Of North Carolina Separator tape for twisted pair in LAN cable
US7982132B2 (en) * 2008-03-19 2011-07-19 Commscope, Inc. Of North Carolina Reduced size in twisted pair cabling
KR20160115678A (en) * 2014-01-28 2016-10-06 델피 테크놀로지스 인코포레이티드 Tape wrapped unshielded twisted pair cable for high speed data transmissions
US10522272B2 (en) * 2018-02-08 2019-12-31 Delphi Technologies, Llc Method of manufacturing a twisted pair wire cable and a twisted pair wire cable formed by said method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1419090A (en) * 1921-08-12 1922-06-06 Western Electric Co Covering machine
US1785037A (en) * 1927-08-20 1930-12-16 Western Electric Co Method of and apparatus for coating cores
US1982288A (en) * 1930-09-06 1934-11-27 Simplex Wire & Cable Co Insulated wire and method of making the same
US1944823A (en) * 1930-10-28 1934-01-23 Nat Electric Prod Corp Method and means for coloring and coating wires and the like
US2173565A (en) * 1935-09-09 1939-09-19 Rca Corp Radio frequency transmission line
US2471752A (en) * 1945-12-22 1949-05-31 Whitney Blake Co Process of covering wire conductors
US2731069A (en) * 1952-06-07 1956-01-17 Felten & Guilleaume Carlswerk Device for compounding stranded conductors
USRE27028E (en) * 1969-11-12 1971-01-12 Fep-fluorocarbon tubing

Also Published As

Publication number Publication date
CA2135952C (en) 2001-08-14
US5658406A (en) 1997-08-19

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20131118