US3911200A - Electrical cable housing assemblies - Google Patents

Electrical cable housing assemblies Download PDF

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US3911200A
US3911200A US389894A US38989473A US3911200A US 3911200 A US3911200 A US 3911200A US 389894 A US389894 A US 389894A US 38989473 A US38989473 A US 38989473A US 3911200 A US3911200 A US 3911200A
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foil
film
folded
electrical resistance
cable
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US389894A
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Herbert D Simons
Frank E Timmons
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Visy Glass Packaging Services Pty Ltd
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Sun Chemical Corp
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Priority claimed from US00323950A external-priority patent/US3819443A/en
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Assigned to FACILE TECHNOLOGIES INC., A CORP. OF reassignment FACILE TECHNOLOGIES INC., A CORP. OF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SUN CHEMICAL CORPORATION, 200 PARK AVE., NEW YORK, NY 10166 A CORP. OF DE
Assigned to FACLE TECHNOLOGIES INC reassignment FACLE TECHNOLOGIES INC ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SUN CHEMICAL CORPORATION
Assigned to BTR NYLEX LIMITED, AN AUSTRALIAN CORP. reassignment BTR NYLEX LIMITED, AN AUSTRALIAN CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FACILE TECHNOLOIES INC.
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/002—Inhomogeneous material in general
    • H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • H01B11/08—Screens specially adapted for reducing cross-talk
    • 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
    • H01B13/26—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping
    • H01B13/2613—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping
    • H01B13/2673—Sheathing; Armouring; Screening; Applying other protective layers by winding, braiding or longitudinal lapping by longitudinal lapping of a compartment separating metallic screen
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable

Definitions

  • a cable housing assembly for carrying a plurality of 156/160, 163, 164, 196, 204, 213, 221, 222, conductors comprises a longitudinal multifinned 226, 227, 250, 258, 264, 265; 161/99, 165, shielding tape wherein each fin comprises a thin elon 167, 213-219, 221, 222; 138/111, 115, 116, gated flexible foil of material having relatively low 117; 174/70 R, 72, 68 C, 117 R, 117 F, 1 17 electrical resistance characteristics and having each FF, 1 19 C, 36, 27, 34, 35 R, 126 CP surface thereof bonded to and coextensive with a thin elongated flexible film of material having relatively [56]
  • This invention relates to multiconductor cables in general and more particularly relates to means for shielding certain of the conductors of a multiconductor cable from other conductors of the cable. It is an improvement over the shielding means disclosed in US. Pat. No. 3,622,683 issued Nov. 23, 1971, to W. L. Roberts et al. for Telephone Cable with Improved Crosstalk Properties.
  • a longitudinal shielding tape having a wide variety of embodiments whereby the speed of manufacturing the cable and the shielding efficiency are increased, the volume and space within the cable are better utilized and foil corrosion is minimized.
  • the encapsulated film/foil laminated longitudinal multiconductor cable electrostatic shielding tapes of this invention are prepared by the steps of (A) forming a strip of a laminate of metal foil and plastic film bonded together by any suitable and conventional means with any suitable adhesive, such as a heat-fusible resin, a solvent-release rubber, or a solvent-release plastic base adhesive, and (B) folding the strip (A) upon itself.
  • FIG. 1 is a cross-sectional view of a laminate of plastic film and metal foil.
  • FIG. 2 is a cross-sectional view of a laminate of plastic film and metal foil with a heat-fusible coating on the metal foil.
  • FIG. 3 is a cross-sectional view of an embodiment of a shielding tape showing the laminate of FIG. 2 folded upon itself with the plastic film on the outside.
  • FIG. 4 is a cross-sectional view of an embodiment of a shielding tape showing the laminate of FIG. 2 folded upon itself from both edges.
  • FIG. 5 is a sectional view of an embodiment of a shielding tape showing the folded laminate of FIG. 4 with a strip of plastic film over the fold gap.
  • FIG. 6 is a cross-sectional view of an embodiment of a shielding tape showing two folded laminates of FIG. 1 with a plastic film on each face.
  • FIG. 7 is a cross-sectional view of the structure of FIG. 6 wherein the folded laminates of FIG. 1 have opened to form four compartments.
  • FIGS. 8 and 9 are cross-sectional views of embodiments of a shielding tape showing a plurality of folded laminates of FIG. 1 of equal lengths with a plastic film on the top and the bottom faces.
  • FIG. 10 is a cross-sectional view of an embodiment of a shielding tape showing a plurality of folded laminates of FIG. 1 of unequal lengths with a plastic film on the top and the bottom faces.
  • FIG. 11 is a cross-sectional view of a cable structure showing the cable jacket and four longitudinal cable compartments of equal size.
  • Flg. 12 is a cross-sectional view of a cable structure showing the cable jacket and six longitudinal cable compartments of unequal size.
  • FIG. 1 illustrates the laminate of a metal foil 10 and a plastic film 11 which is the basis of the shielding tapes of this invention.
  • the metal foil 10 may be any conductive metal normally used in the cable industry such as for example aluminum, copper, tinned copper, steel, silver, or the like.
  • the plastic film 11 may be any suitable insulation material such as for example a polyolefin, e. g., polyethylene or polypropylene; polyethylene terephthalate (Mylar); tetrafluoroethylene polymer (Teflon); polyvinyl chloride; polystyrene; polyvinylidene fluoride; a polyamide; a polycarbonate; or the like.
  • a polyolefin e. g., polyethylene or polypropylene
  • Mylar polyethylene terephthalate
  • Teflon tetrafluoroethylene polymer
  • polyvinyl chloride polystyrene
  • polystyrene polyvinylidene fluoride
  • a polyamide a polycarbonate
  • the adhesive interface 13 may be any suitable adhesive such as for example a polyolefin, a polyester, polyvinyl chloride, or the like.
  • FIG. 2 Shown in FIG. 2 is essentially the same laminate as shown in FIG. 1 but with a heat-fusible coating (12) on the metal foil.
  • the coating may be any suitable material such as for example polyethylene, polyester, polyvinyl chloride, or the like.
  • FIG. 3 The simplest embodiment of this invention is shown in FIG. 3.
  • This structure is formed by the steps of 1) making a laminate of a metal foil 10 half the thickness required for shielding and a plastic film 11 of the thickness required for insulating the finished tape, (2) applying a heat-fusible coating 12 to the metal foil, (3) cutting the laminate to twice the width required, and (4) folding the laminate upon itself with the coated metal foil on the inside, forming a shielding tape with one folded edge insulated and the core heat-sealed to block moisture.
  • FIG.- 4 shows a second embodiment in which the laminate is folded upon itself from both ends, the edges being butted at fold gap 14 to form a tape that is watertight and thus protected from corrosion, and both edges are insulated.
  • the fold gap 14 is shown covered with a separate piece of insulating film 15 which is laminated thereto by means of any suitable adhesive.
  • the insulating film 15 may be the same as film l l or different. This further protects the foil edges from corrosion and completely encapsulates the conductive foil in an insulating film.
  • Shielding tape systems for longitudinal parallel shielding of insulated wires and wire groups in compartmentalized multiconductor cables are alsowithin the scope of this invention. These are made bythe steps of (1 laminating by any known means a metal foil 10 and a plastic film 11, as in FIG. 1, (2) slitting the laminate to any desired width, (3) slitting heat-fusible coated plastic film 16 to the same width as the laminate in step (2), (4) folding the laminate from step (2) in half lengthwise plastic-,to-plastic, (5) laying two folded laminate tapes from step (4) fold-to-fold and (6) laminating to each of the resulting faces a heat-fusible coated plastic film from step (3) in any known and convenient manner, as in FIG. 6.
  • the plastic film 16 may be the same as film 11 or difierent.
  • the shielding tape from step (5) above is inserted into the ultimate cable by any suitable means, such as by feeding the tape from a pad directly into the cabler with the insulated single conductors or insulated groups.
  • the shielded, compartmentalized multiconductor core can then be further processed, i.e., jacketed, sheathed, etc.
  • FIG; 11 illustrates an electrical cable comprising an outer jacket or-sheath 18v made of an insulating material such as plastic, rubber, or the like, and a fourcompartment shielding tape 19, for example, as shown in FIGS. 6 and 7.
  • FIG. 12 illustrates an electrical cable comprising an outer jacket or sheath l8 and a six-compartment shielding tape.l9, for example, as shown in FIG. 10.
  • the shielding tapes described herein may be spliced in any suitable manner as long as there is shielding continuity; thus there may be used, for example, an electrical continuity penetration clamp to join the conducting material and a plastic film to join the insulating material.
  • a cable housing assembly for carrying a plurality of cables comprising a jacket of flexible insulating material enclosing a shielding tape comprising in combination (a) a thin elongated flexible film of material having relatively high electrical resistance insulation characteristics and (b) a thin elongated flexible foil of material having relatively low electrical resistance characteristics and having one surface thereof bonded to one surface of said film (a) and being coextensive therewith, said shielding tape being folded along a longitudinally extending crease, thereby to be doubled in thickness, said thin foil (b) having a thin layer of bonding material disposed on the surface thereof which is opposite to its said one surface bonded to said film (a), whereby a foil-to-foil connection is made by said thin layer of bonding material.
  • a cable housing assembly for carrying a plurality of cables comprising a jacket of flexible insulating material enclosing a shielding tape comprising in combination (1) a plurality of folded laminates, each comprising (a) a thin elongated flexible film of material having relatively high electrical resistance insulation characteristics and (b) a thin elongated flexible foil of material having relatively low electrical resistance characteristics and having one surface thereof bonded to one surface of said film (a) and being coextensive therewith, each said laminate being folded along a longitudinally extending crease, thereby to be doubled in thickness and bringing the surface of said film (a) which is opposite its said one surface into contact with itself, whereby the surface of said foil (b) forms outer opposite surfaces of said folded laminate and (2) insulation film layers bonded to and coextensive with both the top and the bottom foil surfaces of said plurality of folded laminates arranged fold-to-fold and foil-to-foil.

Abstract

A cable housing assembly for carrying a plurality of conductors comprises a longitudinal multifinned shielding tape wherein each fin comprises a thin elongated flexible foil of material having relatively low electrical resistance characteristics and having each surface thereof bonded to and coextensive with a thin elongated flexible film of material having relatively high electrical resistance insulation characteristics.

Description

United States Patent 1 1 1111 1,200
Simons et al. Oct. 7, 1975 [54] ELECTRICAL CABLE HOUSING 2,852,423 9/1958 Bassett, Jr 174/36 X 3,051,771 8/1962 Lee i 174/36 3,622,683 11/1971 Roberts ct al. 174/36 [75] Inventors: Herbert D. Simons, Long Valley, 3,634,800 1/1972 Fisher 174/119 R N.J.; Frank E. Timmons, Richmond, Ind. FOREIGN PATENTS OR APPLICATIONS [73] Assignee: Sun Chemical Corporation, New 356,899 9/1931 United Kingdom 174/36 York NY 203,527 6/1939 Switzerland 174/36 50,273 2/1932 Norway 174/36 [22] Filed: Aug. 20, 1973 448,551 4/1969 Japan 174/119 R [21] Appl. N0.: 389,894
Primary ExaminerArthur T. Grimley Related Apphcanon Data Attorney, Agent, or FirmCynthia Berlow [62] Division of Ser. No. 323,950,-.lan. 15, 1973.
[52] US. Cl 1 74/36; 174/72 R; 174/95 57 ABSTRACT [51] Int. Cl. H01B 7/34 [58] Field of Search 29/624, 232; 156/47, 51-54, A cable housing assembly for carrying a plurality of 156/160, 163, 164, 196, 204, 213, 221, 222, conductors comprises a longitudinal multifinned 226, 227, 250, 258, 264, 265; 161/99, 165, shielding tape wherein each fin comprises a thin elon 167, 213-219, 221, 222; 138/111, 115, 116, gated flexible foil of material having relatively low 117; 174/70 R, 72, 68 C, 117 R, 117 F, 1 17 electrical resistance characteristics and having each FF, 1 19 C, 36, 27, 34, 35 R, 126 CP surface thereof bonded to and coextensive with a thin elongated flexible film of material having relatively [56] References Cited high electrical resistance insulation characteristics.
UNITED STATES PATENTS 3 C 12 D 0 F 2,318,367 5 1943 Brigg 174 119 R rawmg gums US. Patent Oct. 7,1975 Sheet 2 of2 3,911,200
ELECTRICAL CABLE HOUSING ASSEMBLIES This application is a division of copending application Ser. No. 323,950 (filed Jan. 15, 1973).
This invention relates to multiconductor cables in general and more particularly relates to means for shielding certain of the conductors of a multiconductor cable from other conductors of the cable. It is an improvement over the shielding means disclosed in US. Pat. No. 3,622,683 issued Nov. 23, 1971, to W. L. Roberts et al. for Telephone Cable with Improved Crosstalk Properties.
As communications systems grow more complex, it becomes increasingly important to be able to transmit an increasing number of currents within the same cable, for example the transmission of telephone signals, video messages, and two-way data transmission. It is essential that the conductors be isolated electrically and physically from each other within the cable. It is also essential that the overall cable structure be compact, lightweight, and flexible and that the conductors therein be kept free from moisture.
In the communications industry it is common practice to use a floating or grounded shield of aluminum or copper between several sections of cable. This shield is generally by not necessarily totally sealed and moisturcproof within an enclosure of plastic insulating film in order to keep the shield free from electrical contact with adjacent insulated conductors and free from damage and/or corrosion by moisture which may enter the cable and track the length of the shield.
The use of one tape to shield one conductor or a pair or a group of conductors from another conductor or pair or group of conductors, permitting simultaneous transmission of two separate currents of the same frequency within the same cable, is known, as in for example US. Pat. Nos. 3,032,604 and 3,622,683.
In accordance with the instant invention there is provided a longitudinal shielding tape having a wide variety of embodiments whereby the speed of manufacturing the cable and the shielding efficiency are increased, the volume and space within the cable are better utilized and foil corrosion is minimized.
In general the encapsulated film/foil laminated longitudinal multiconductor cable electrostatic shielding tapes of this invention are prepared by the steps of (A) forming a strip of a laminate of metal foil and plastic film bonded together by any suitable and conventional means with any suitable adhesive, such as a heat-fusible resin, a solvent-release rubber, or a solvent-release plastic base adhesive, and (B) folding the strip (A) upon itself.
The invention will be more fully understood from the following description of the accompanying drawings, in which:
FIG. 1 is a cross-sectional view of a laminate of plastic film and metal foil.
FIG. 2 is a cross-sectional view of a laminate of plastic film and metal foil with a heat-fusible coating on the metal foil.
FIG. 3 is a cross-sectional view of an embodiment of a shielding tape showing the laminate of FIG. 2 folded upon itself with the plastic film on the outside.
FIG. 4 is a cross-sectional view of an embodiment of a shielding tape showing the laminate of FIG. 2 folded upon itself from both edges.
FIG. 5 is a sectional view of an embodiment of a shielding tape showing the folded laminate of FIG. 4 with a strip of plastic film over the fold gap.
FIG. 6 is a cross-sectional view of an embodiment of a shielding tape showing two folded laminates of FIG. 1 with a plastic film on each face.
FIG. 7 is a cross-sectional view of the structure of FIG. 6 wherein the folded laminates of FIG. 1 have opened to form four compartments.
FIGS. 8 and 9 are cross-sectional views of embodiments of a shielding tape showing a plurality of folded laminates of FIG. 1 of equal lengths with a plastic film on the top and the bottom faces.
FIG. 10 is a cross-sectional view of an embodiment of a shielding tape showing a plurality of folded laminates of FIG. 1 of unequal lengths with a plastic film on the top and the bottom faces.
FIG. 11 is a cross-sectional view of a cable structure showing the cable jacket and four longitudinal cable compartments of equal size.
Flg. 12 is a cross-sectional view of a cable structure showing the cable jacket and six longitudinal cable compartments of unequal size.
Now referring to the figures, FIG. 1 illustrates the laminate of a metal foil 10 and a plastic film 11 which is the basis of the shielding tapes of this invention. The metal foil 10 may be any conductive metal normally used in the cable industry such as for example aluminum, copper, tinned copper, steel, silver, or the like.
The plastic film 11 may be any suitable insulation material such as for example a polyolefin, e. g., polyethylene or polypropylene; polyethylene terephthalate (Mylar); tetrafluoroethylene polymer (Teflon); polyvinyl chloride; polystyrene; polyvinylidene fluoride; a polyamide; a polycarbonate; or the like.
The adhesive interface 13 may be any suitable adhesive such as for example a polyolefin, a polyester, polyvinyl chloride, or the like.
Shown in FIG. 2 is essentially the same laminate as shown in FIG. 1 but with a heat-fusible coating (12) on the metal foil. The coating may be any suitable material such as for example polyethylene, polyester, polyvinyl chloride, or the like.
The simplest embodiment of this invention is shown in FIG. 3. This structure is formed by the steps of 1) making a laminate of a metal foil 10 half the thickness required for shielding and a plastic film 11 of the thickness required for insulating the finished tape, (2) applying a heat-fusible coating 12 to the metal foil, (3) cutting the laminate to twice the width required, and (4) folding the laminate upon itself with the coated metal foil on the inside, forming a shielding tape with one folded edge insulated and the core heat-sealed to block moisture.
FIG.- 4 shows a second embodiment in which the laminate is folded upon itself from both ends, the edges being butted at fold gap 14 to form a tape that is watertight and thus protected from corrosion, and both edges are insulated.
In FIG. 5 the fold gap 14 is shown covered with a separate piece of insulating film 15 which is laminated thereto by means of any suitable adhesive. The insulating film 15 may be the same as film l l or different. This further protects the foil edges from corrosion and completely encapsulates the conductive foil in an insulating film.
Shielding tape systems for longitudinal parallel shielding of insulated wires and wire groups in compartmentalized multiconductor cables are alsowithin the scope of this invention. These are made bythe steps of (1 laminating by any known means a metal foil 10 and a plastic film 11, as in FIG. 1, (2) slitting the laminate to any desired width, (3) slitting heat-fusible coated plastic film 16 to the same width as the laminate in step (2), (4) folding the laminate from step (2) in half lengthwise plastic-,to-plastic, (5) laying two folded laminate tapes from step (4) fold-to-fold and (6) laminating to each of the resulting faces a heat-fusible coated plastic film from step (3) in any known and convenient manner, as in FIG. 6. The plastic film 16 may be the same as film 11 or difierent.
The shielding tape from step (5) aboveis inserted into the ultimate cable by any suitable means, such as by feeding the tape from a pad directly into the cabler with the insulated single conductors or insulated groups. The shielded, compartmentalized multiconductor core can then be further processed, i.e., jacketed, sheathed, etc. As the tape is fed into the cabler it opens as in FIG. 7 to a system having four fins forming four longitudinal parallel shielding compartments, each basically pie-shaped or triangular in shape and having the same cross-sectional areas.
It is within the scope of this invention to vary the type and gauge of the film and/or of the foil. It is also within the scope of this invention to provide longitudinal multicompartmentalized shielding tapes having more than four fins and parallel compartments by varying the number of the folded tapes as in FIGS. 8 and 9 and/or having different cross-sectional areas by varying the size of the folded tapes as in FIG. 10; in each of the systems illustrated in FIGS. 8, 9, and 10, the folded tapes open at each plastic-to-plastic interface, as shown in FIG. 7. In suchmulti layers of folded tapes, the faces of the tapes are laminatedmetal-to-metal with any suitable adhesive 17, such as for example solvent-release polyethylene, rubber, polyester, polyvinyl chloride, or
the like..
FIG; 11 illustrates an electrical cable comprising an outer jacket or-sheath 18v made of an insulating material such as plastic, rubber, or the like, and a fourcompartment shielding tape 19, for example, as shown in FIGS. 6 and 7.
FIG. 12 illustrates an electrical cable comprising an outer jacket or sheath l8 and a six-compartment shielding tape.l9, for example, as shown in FIG. 10.
The shielding tapes described herein may be spliced in any suitable manner as long as there is shielding continuity; thus there may be used, for example, an electrical continuity penetration clamp to join the conducting material and a plastic film to join the insulating material.
, the specific disclosure herein but only by the appended claims.
What is claimed is:
l. A cable housing assembly for carrying a plurality of cables comprising a jacket of flexible insulating material enclosing a shielding tape comprising in combination (a) a thin elongated flexible film of material having relatively high electrical resistance insulation characteristics and (b) a thin elongated flexible foil of material having relatively low electrical resistance characteristics and having one surface thereof bonded to one surface of said film (a) and being coextensive therewith, said shielding tape being folded along a longitudinally extending crease, thereby to be doubled in thickness, said thin foil (b) having a thin layer of bonding material disposed on the surface thereof which is opposite to its said one surface bonded to said film (a), whereby a foil-to-foil connection is made by said thin layer of bonding material. I 2. A cable housing assembly for carrying a plurality of cables comprising a jacket of flexible insulating material enclosing a shielding tape comprising in combination (1) a plurality of folded laminates, each comprising (a) a thin elongated flexible film of material having relatively high electrical resistance insulation characteristics and (b) a thin elongated flexible foil of material having relatively low electrical resistance characteristics and having one surface thereof bonded to one surface of said film (a) and being coextensive therewith, each said laminate being folded along a longitudinally extending crease, thereby to be doubled in thickness and bringing the surface of said film (a) which is opposite its said one surface into contact with itself, whereby the surface of said foil (b) forms outer opposite surfaces of said folded laminate and (2) insulation film layers bonded to and coextensive with both the top and the bottom foil surfaces of said plurality of folded laminates arranged fold-to-fold and foil-to-foil.
3. The cable assembly of claim 1 wherein the film is a plastic and the foil is a metal.

Claims (3)

1. A cable housing assembly for carrying a plurality of cables comprising a jacket of flexible insulating material enclosing a shielding tape comprising in combination (a) a thin elongated flexible film of material having relatively high electrical resistance insulation characteristics and (b) a thin elongated flexible foil of material having relatively low electrical resistance characteristics and having one surface thereof bonded to one surface of said film (a) and being coextensive therewith, said shielding tape being folded along a longitudinally extending crease, thereby to be doubled in thickness, said thin foil (b) having a thin layer of bonding material disposed on the surface thereof which is opposite to its said one surface bonded to said film (a), whereby a foil-to-foil connection is made by said thin layer of bonding material.
2. A cable housing assembly for carrying a plurality of cables comprising a jacket of flexible insulating material enclosing a shielding tape comprising in combination (1) a plurality of folded laminates, each comprising (a) a thin elongated flexible film of material having relatively high electrical resistance insulation characteristics and (b) a thin elongated flexible foil of material having relatively low electrical resistance characteristics and having one surface thereof bonded to one surface of said film (a) and being coextensive therewith, each said laminate being folded along a longitudinally extending crease, thereby to be doubled in thickness and bringing the surface of said film (a) which is opposite its said one surface into contact with itself, whereby the surface of said foil (b) forms outer opposite surfaces of said folded laminate and (2) insulation film layers bonded to and coextensive with both the top and the bottom foil surfaces of said plurality of folded laminates arranged fold-to-fold and foil-to-foil.
3. The cable assembly of claim 1 wherein the film is a plastic and the foil is a metal.
US389894A 1973-01-15 1973-08-20 Electrical cable housing assemblies Expired - Lifetime US3911200A (en)

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US00323950A US3819443A (en) 1973-01-15 1973-01-15 Method for making multifinned shielding tapes
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US4085284A (en) * 1976-08-10 1978-04-18 General Cable Corporation D-shield telephone cables
FR2399041A1 (en) * 1977-07-25 1979-02-23 Sumitomo Electric Industries OPTICAL FIBER CABLES, CORRESPONDING METHOD AND APPARATUS
US4675471A (en) * 1984-07-30 1987-06-23 Norchem, Inc. Electrical cables
US5952615A (en) * 1995-09-15 1999-09-14 Filotex Multiple pair cable with individually shielded pairs that is easy to connect
WO2001022142A1 (en) * 1999-09-22 2001-03-29 Milliken & Company Conduit insert for optical fiber cable
US20010001426A1 (en) * 1996-04-09 2001-05-24 Gareis Galen Mark High performance data cable
EP1107262A2 (en) * 1999-12-03 2001-06-13 Alcatel Low-crosstalk data cable and method of manufacturing
US6248954B1 (en) * 1999-02-25 2001-06-19 Cable Design Technologies, Inc. Multi-pair data cable with configurable core filling and pair separation
WO2001054142A1 (en) * 2000-01-19 2001-07-26 Belden Wire & Cable Company A cable channel filler with imbedded shield and cable containing the same
US6288340B1 (en) * 1998-06-11 2001-09-11 Nexans Cable for transmitting information and method of manufacturing it
WO2003052773A1 (en) * 2001-12-14 2003-06-26 Neptco Incorporated Multifolded composite tape for use in cable manufacture and methods for making same
US20030132021A1 (en) * 1999-12-02 2003-07-17 Gareis Galen M. Cable separator spline
US6596944B1 (en) 1997-04-22 2003-07-22 Cable Design Technologies, Inc. Enhanced data cable with cross-twist cabled core profile
US20040033035A1 (en) * 2002-03-28 2004-02-19 Morris David Drew Fire resistant conduit insert for optical fiber cable
US20040035603A1 (en) * 1999-02-25 2004-02-26 William Clark Multi-pair data cable with configurable core filling and pair separation
EP1196974B1 (en) * 1999-06-23 2004-04-07 Marc Talon, Inc. Method and apparatus for dividing a conduit into compartments
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US10254498B2 (en) 2015-11-24 2019-04-09 Milliken & Company Partial float weave fabric
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US11008680B2 (en) 2015-11-24 2021-05-18 Milliken & Company Partial float weave fabric
US11795587B2 (en) 2015-11-24 2023-10-24 Milliken & Company Partial float weave fabric
US11201456B2 (en) 2018-12-20 2021-12-14 Milliken & Company Multiple chamber innerduct structure
US11226463B2 (en) 2018-12-20 2022-01-18 Milliken & Company Multiple chamber folded innerduct structure
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US11913593B2 (en) 2021-12-07 2024-02-27 Milliken & Company Blowable flexible innerduct

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