US20040020822A1 - Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe - Google Patents

Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe Download PDF

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Publication number
US20040020822A1
US20040020822A1 US10/609,576 US60957603A US2004020822A1 US 20040020822 A1 US20040020822 A1 US 20040020822A1 US 60957603 A US60957603 A US 60957603A US 2004020822 A1 US2004020822 A1 US 2004020822A1
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US
United States
Prior art keywords
glue
conduit
bag
pipe
strip
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.)
Abandoned
Application number
US10/609,576
Inventor
Klaus Nothofer
Hong Li
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel SA
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
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Assigned to ALCATEL reassignment ALCATEL ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LI, HONG, NOTHOFER, KLAUS
Publication of US20040020822A1 publication Critical patent/US20040020822A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
    • G02B6/508—Fixation devices in ducts for drawing cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor

Definitions

  • the invention relates to a conduit glue bag and conduit glue strips which shall be glued to the inner wall of a sewer pipe and methods for installing a cable in said sewer pipe by making use of said conduit glue strips.
  • sewer pipes or other underground supply conduits for laying communication cables is a possibility already being exploited to lower the costs of underground work for communications subscriber access. It also enables subscriber access of this kind to be extended orientated to need and quickly, which is becoming increasingly important of late owing to the multiplicity of operators.
  • Some known techniques for laying communication cables in sewer pipes are for example the use of customized robots which pull in and fix the conduits to the sewer wall by means of metal ring clamps; tubular liners which expand and press the cable onto the inner wall of the pipe; or an elongated strip-shaped body which is bonded to the internal surface of a pipe.
  • the object of the present invention is to provide a conduit glue bag and conduit glue strips to be glued against a portion of the internal surface of a underground pipe and methods for installing micro optical fiber cable inside said pipes which are low cost and provide easy cable exchange and repair.
  • a conduit glue bag that comprises at least one conduit element and a bag filled with glue fluid which extends over the exterior surface of said at least one conduit, said bag having a zip cord along it and being built in such a manner that after pulling the zip cord, the glue fluid pours out of the bag;
  • a conduit glue strip made out of at least one conduit glue bag comprising at least one conduit element and a bag filled with glue fluid which extends over the exterior surface of said at least one conduit, said bag having a zip cord along it and being built in such a manner that after pulling the zip cord, the glue fluid pours out of the bag, or
  • a conduit glue strip made out of an elongated strip body of soft material with a plurality of canals which extend lengthwise of the pipe, a glue layer which adheres it to the inner surface of the pipe and which is protected with a thin foil or tape in a prior state to installation, wherein the protection foil degrades when hot water is injected inside the canals;
  • a method for installing at least one cable in a sewer pipe using a conduit glue strip the conduit glue strip being made out of at least one conduit glue bag comprising at least one conduit element and a bag filled with glue fluid which extends over the exterior surface of said at least one conduit, the bag having a zip cord along it and being built in such a manner that after pulling the zip cord the glue fluid pours out of the bag, comprising the steps of: introducing the conduit glue bag inside the sewer pipe; pulling the zip cord of the bag to let the glue fluid pour out over the sewer inner surface and simultaneously pressing the conduit glue bag on the installation position; activating the glue function of the glue fluid by injecting hot water inside the conduit; blowing or pulling micro optical fiber cable into the conduit, or
  • a method for installing at least one cable in a sewer pipe using a conduit glue strip comprising the steps of: introducing the conduit glue strip into the sewer pipe; degrading the protection foil and activating the glue function of the glue layer by injecting hot water along the conduit strip canals; pressing the conduit glue strip against the inner wall of the sewer pipe; blowing or pulling micro optical fiber cable into the canals.
  • FIGS. 1 to 3 An embodiment example of the invention is now explained with the aid of FIGS. 1 to 3 .
  • FIGS. 1A,B shows an embodiment of a conduit glue bag in cross section and sideways respectively.
  • FIG. 2 shows the cross-section of an underground pipe with a conduit glue strip made out of a number of conduit glue bags adhered to the inner wall of the pipe.
  • FIG. 3 shows the cross-section of an underground pipe with a conduit glue strip made out of a strip-shaped body adhered to the inner wall of the pipe.
  • FIGS. 1A,B shows an embodiment of a conduit glue bag 10 in cross section and sideways respectively. It is designed as a conduit 1 , which has a bag 2 over its exterior surface, the bag 2 being filled with glue fluid 3 and having a zip cord 4 longitudinally along its surface. It is built in such a manner that, after pulling the zip cord 4 , the glue fluid 3 will pour out of the bag 2 .
  • the conduit 1 can be made of some plastic material.
  • the bag 2 is made of polyester felt material with inner PE coating and the glue material 3 inside the bag belongs to the acrylate glue family, which is also suitable for wet ground, such as silanmodified glue, or glasfiber epoxy resin and is kept in fluid form.
  • conduit 1 it is also advantageous to cover more than one conduit 1 with the glue bag 2 or having a conduit 1 divided with spacers or equipped with more inner conduits.
  • FIG. 2 shows the cross-section of an underground pipe 5 with a conduit glue strip glued to the inner surface 6 of said pipe.
  • the conduit glue strip is made out of four conduits 1 adhered to the inner wall 6 of said pipe by means of a glue material 3 which was originally confined inside the bags 2 as already explained above.
  • conduit glue bag 10 After positioning of the conduit glue bag 10 on the desired position inside the pipe 5 , preferably at the bottom of said pipe, the zip cord 4 of the bag 2 will be pulled and the glue fluid 3 will pour out of the bag 2 and over the inner surface 6 of the pipe. Simultaneously the conduit glue bag 10 will be pressed to ensure an entire glue 3 contact between the conduits 1 and the wall 6 to increase the cohesive effects. Hot water will be introduced later inside the conduit 1 to activate the glue 3 function and form a cohesive conduit glue strip adhered to the inner wall 6 of the pipe 5 .
  • micro optical fiber cable (not shown) can be blown or pulled at any time into the conduit 1 .
  • FIG. 3 shows a cross-section of a pipe 5 with a conduit glue strip glued to the inner surface 6 of said pipe.
  • the conduit glue strip comprises an elongated strip body soft material 7 with four canals 8 which extend lengthwise of the pipe 5 and a glue layer 9 in charge of adhering the conduit glue strip.
  • the soft material 7 is made of polyester felt material with inner PE coating.
  • the glue layer 9 belongs to the acrylate glue family, which is also suitable for wet ground, such as silanmodified glue.
  • conduit glue strip glue layer 9 is protected with thin foil (not shown) or similar protection tape, preventing it from soiling by transport and pulling into the sewer pipes.
  • the protective foil or tape is put off and simultaneously the strip pressed and glued against the inner surface 5 of the pipe 6 .
  • Hot water is later introduced into the internal conduit strip canals 8 to activate the glue layer 9 function. Alternatively, hot water can also be used to loose or degrade the protection tape.
  • micro optical fiber cable (not shown) can be blown or pulled at any time into the canals 8 .

Abstract

A conduit glue bag which comprises a conduit element and a bag filled with glue fluid which extends over the exterior surface of the conduit, the bag having a zip cord along it and being built in such a manner that after pulling the zip cord, the glue fluid pours out of the bag. Conduit glue strips and methods for installing cable inside a sewer pipe are also described.

Description

    FIELD OF THE INVENTION AND RELATED ART
  • The invention is based on a priority application EP 02360231.1 which is hereby incorporated by reference. [0001]
  • The invention relates to a conduit glue bag and conduit glue strips which shall be glued to the inner wall of a sewer pipe and methods for installing a cable in said sewer pipe by making use of said conduit glue strips. [0002]
  • Using of sewer pipes or other underground supply conduits for laying communication cables is a possibility already being exploited to lower the costs of underground work for communications subscriber access. It also enables subscriber access of this kind to be extended orientated to need and quickly, which is becoming increasingly important of late owing to the multiplicity of operators. Some known techniques for laying communication cables in sewer pipes are for example the use of customized robots which pull in and fix the conduits to the sewer wall by means of metal ring clamps; tubular liners which expand and press the cable onto the inner wall of the pipe; or an elongated strip-shaped body which is bonded to the internal surface of a pipe. [0003]
  • In U.S. Pat. No. 2001010781 for example, it is disclosed a method for laying data cables in underground pipes which uses an elongated strip body adhered to a portion of the pipe and which has at least one cable confined in such body, the method comprising the steps of confining at least one cable in said body of settable material, inserting the body into the pipe prior to setting of the material of such body, introducing into the pipe a deformable tubular liner, expanding the liner from within to thus urge the body against the internal surface of the pipe, and causing the body to set or bond the body to the internal surface of the pipe. A drawback of such proposal is that the cable shall be laid inside the pipe together with the strip body, and thus the need to repeat the laying process every time new cabling is needed. [0004]
    • OBJECT OF THE INVENTION
  • The object of the present invention is to provide a conduit glue bag and conduit glue strips to be glued against a portion of the internal surface of a underground pipe and methods for installing micro optical fiber cable inside said pipes which are low cost and provide easy cable exchange and repair. [0005]
  • The object is achieved according to the invention by [0006]
  • a conduit glue bag that comprises at least one conduit element and a bag filled with glue fluid which extends over the exterior surface of said at least one conduit, said bag having a zip cord along it and being built in such a manner that after pulling the zip cord, the glue fluid pours out of the bag; [0007]
  • a conduit glue strip made out of at least one conduit glue bag comprising at least one conduit element and a bag filled with glue fluid which extends over the exterior surface of said at least one conduit, said bag having a zip cord along it and being built in such a manner that after pulling the zip cord, the glue fluid pours out of the bag, or [0008]
  • a conduit glue strip made out of an elongated strip body of soft material with a plurality of canals which extend lengthwise of the pipe, a glue layer which adheres it to the inner surface of the pipe and which is protected with a thin foil or tape in a prior state to installation, wherein the protection foil degrades when hot water is injected inside the canals; and [0009]
  • a method for installing at least one cable in a sewer pipe using a conduit glue strip, the conduit glue strip being made out of at least one conduit glue bag comprising at least one conduit element and a bag filled with glue fluid which extends over the exterior surface of said at least one conduit, the bag having a zip cord along it and being built in such a manner that after pulling the zip cord the glue fluid pours out of the bag, comprising the steps of: introducing the conduit glue bag inside the sewer pipe; pulling the zip cord of the bag to let the glue fluid pour out over the sewer inner surface and simultaneously pressing the conduit glue bag on the installation position; activating the glue function of the glue fluid by injecting hot water inside the conduit; blowing or pulling micro optical fiber cable into the conduit, or [0010]
  • a method for installing at least one cable in a sewer pipe using a conduit glue strip, the conduit glue strip being made out of an elongated strip body of soft material with a plurality of canals which extend lengthwise of the pipe, a glue layer which adheres it to the inner surface of the pipe and which is protected with a thin foil or tape in a prior state to installation, comprising the steps of: introducing the conduit glue strip into the sewer pipe; degrading the protection foil and activating the glue function of the glue layer by injecting hot water along the conduit strip canals; pressing the conduit glue strip against the inner wall of the sewer pipe; blowing or pulling micro optical fiber cable into the canals. [0011]
  • Standard methods for inspection, cleaning and repair of sewer canals can be applied to the installed system. [0012]
  • Advantageous configurations of the invention emerge from the dependent claims, the following description and the drawings.[0013]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • An embodiment example of the invention is now explained with the aid of FIGS. [0014] 1 to 3.
  • FIGS. 1A,B shows an embodiment of a conduit glue bag in cross section and sideways respectively. [0015]
  • FIG. 2 shows the cross-section of an underground pipe with a conduit glue strip made out of a number of conduit glue bags adhered to the inner wall of the pipe. [0016]
  • FIG. 3 shows the cross-section of an underground pipe with a conduit glue strip made out of a strip-shaped body adhered to the inner wall of the pipe.[0017]
    • DETAILED DESCRIPTION OF THE DRAWINGS
  • FIGS. 1A,B shows an embodiment of a [0018] conduit glue bag 10 in cross section and sideways respectively. It is designed as a conduit 1, which has a bag 2 over its exterior surface, the bag 2 being filled with glue fluid 3 and having a zip cord 4 longitudinally along its surface. It is built in such a manner that, after pulling the zip cord 4, the glue fluid 3 will pour out of the bag 2.
  • The [0019] conduit 1 can be made of some plastic material. The bag 2 is made of polyester felt material with inner PE coating and the glue material 3 inside the bag belongs to the acrylate glue family, which is also suitable for wet ground, such as silanmodified glue, or glasfiber epoxy resin and is kept in fluid form.
  • It is also advantageous to cover more than one [0020] conduit 1 with the glue bag 2 or having a conduit 1 divided with spacers or equipped with more inner conduits.
  • FIG. 2 shows the cross-section of an [0021] underground pipe 5 with a conduit glue strip glued to the inner surface 6 of said pipe. The conduit glue strip is made out of four conduits 1 adhered to the inner wall 6 of said pipe by means of a glue material 3 which was originally confined inside the bags 2 as already explained above.
  • After positioning of the [0022] conduit glue bag 10 on the desired position inside the pipe 5, preferably at the bottom of said pipe, the zip cord 4 of the bag 2 will be pulled and the glue fluid 3 will pour out of the bag 2 and over the inner surface 6 of the pipe. Simultaneously the conduit glue bag 10 will be pressed to ensure an entire glue 3 contact between the conduits 1 and the wall 6 to increase the cohesive effects. Hot water will be introduced later inside the conduit 1 to activate the glue 3 function and form a cohesive conduit glue strip adhered to the inner wall 6 of the pipe 5.
  • Once the conduit glue strip is formed, micro optical fiber cable (not shown) can be blown or pulled at any time into the [0023] conduit 1.
  • FIG. 3 shows a cross-section of a [0024] pipe 5 with a conduit glue strip glued to the inner surface 6 of said pipe. The conduit glue strip comprises an elongated strip body soft material 7 with four canals 8 which extend lengthwise of the pipe 5 and a glue layer 9 in charge of adhering the conduit glue strip.
  • The [0025] soft material 7 is made of polyester felt material with inner PE coating. The glue layer 9 belongs to the acrylate glue family, which is also suitable for wet ground, such as silanmodified glue.
  • In a state previous to the gluing of the conduit glue strip to the inner wall of the pipe, the conduit glue [0026] strip glue layer 9 is protected with thin foil (not shown) or similar protection tape, preventing it from soiling by transport and pulling into the sewer pipes.
  • Once the conduit glue strip is laid on the desired position inside the [0027] pipe 5, preferably at the bottom of said pipe, the protective foil or tape is put off and simultaneously the strip pressed and glued against the inner surface 5 of the pipe 6. Hot water is later introduced into the internal conduit strip canals 8 to activate the glue layer 9 function. Alternatively, hot water can also be used to loose or degrade the protection tape.
  • Once the conduit glue strip is successfully installed, micro optical fiber cable (not shown) can be blown or pulled at any time into the [0028] canals 8.

Claims (7)

1. Conduit glue bag that comprises at least one conduit element and a bag filled with glue fluid which extends over the exterior surface of said at least one conduit, said bag having a zip cord along it and being built in such a manner that after pulling the zip cord, the glue fluid pours out of the bag.
2. Conduit glue bag according to claim 1, wherein the glue fluid belongs to the acrylate glue family such as elastic silanmodified glue or glasfiber epoxy resin.
3. Conduit glue bag according to claim 1, wherein the conduit is made of some plastic material and the bag is made of polyester felt with inner PE coating.
4. Conduit glue strip, to be glued against a portion of the internal surface of an underground pipe, made out of at least one conduit glue bag comprising at least one conduit element and a bag filled with glue fluid which extends over the exterior surface of said at least one conduit, said bag having a zip cord along it and being built in such a manner that after pulling the zip cord, the glue fluid pours out of the bag.
5. Conduit glue strip, to be glued against a portion of the internal surface of an underground pipe, made out of an elongated strip body of soft material with a plurality of canals which extend lengthwise of the pipe, a glue layer which adheres it to the inner surface of the pipe and which is protected with a thin foil or tape in a prior state to installation, wherein the protection foil degrades when hot water is injected inside the canals.
6. Method for installing a cable in a sewer pipe using a conduit glue strip,
the conduit glue strip being made out of at least one conduit glue bag comprising at least one conduit element and a bag filled with glue fluid which extends over the exterior surface of said at least one conduit, the bag having a zip cord along it and being built in such a manner that after pulling the zip cord the glue fluid pours out of the bag,
comprising the following steps:
introducing the conduit glue bag inside the sewer pipe;
pulling the zip cord of the bag to let the glue fluid pour out over the sewer inner surface and simultaneously pressing the conduit glue bag on the installation position;
activating the glue function of the glue fluid by injecting hot water inside the conduit;
blowing or pulling micro optical fiber cable into the conduit.
7. Method for installing a cable in a sewer pipe using a conduit glue strip,
the conduit glue strip being made out of an elongated strip body of soft material with a plurality of canals which extend lengthwise of the pipe, a glue layer which adheres it to the inner surface of the pipe and which is protected with a thin foil or tape in a prior state to installation,
comprising the following steps:
introducing the conduit glue strip into the sewer pipe;
degrading the protection foil and activating the glue function of the glue layer by injecting hot water along the conduit strip canals;
pressing the conduit glue strip against the inner wall of the sewer pipe;
blowing or pulling micro optical fiber cable into the canals.
US10/609,576 2002-08-05 2003-07-01 Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe Abandoned US20040020822A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02360231A EP1391973B1 (en) 2002-08-05 2002-08-05 Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe
EP02360231.1 2002-08-05

Publications (1)

Publication Number Publication Date
US20040020822A1 true US20040020822A1 (en) 2004-02-05

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US10/609,576 Abandoned US20040020822A1 (en) 2002-08-05 2003-07-01 Conduit glue bag, conduit glue strips and methods for installing cable in sewer pipe

Country Status (4)

Country Link
US (1) US20040020822A1 (en)
EP (1) EP1391973B1 (en)
AT (1) ATE285135T1 (en)
DE (1) DE60202283D1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070087186A1 (en) * 2005-10-14 2007-04-19 3M Innovative Properties Company Privacy film
GB2462533A (en) * 2008-08-12 2010-02-17 I3 Group Ltd A cable guide that minimises turbulence within a flow channel.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU199983U1 (en) * 2017-03-17 2020-10-01 Вадимс ДЕМЧЕНКО MODULE FOR COVERING AND ORDERING CABLES ON THE SURFACE OF THE TABLE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2151206A (en) * 1936-01-14 1939-03-21 Geophysical Res Corp Drill stem section
US4197033A (en) * 1978-02-22 1980-04-08 Raymond International Builders, Inc. Method of installing a pipeline
US4954106A (en) * 1989-02-08 1990-09-04 Shuh Chin Lin Aquatic sports device
US20010010781A1 (en) * 1998-07-30 2001-08-02 Martin Prusak Method of laying data cables and the like in underground pipes and pipe-cable combinations
US6572306B2 (en) * 1998-07-30 2003-06-03 Martin Prusak Method of laying data cables and the like in underground pipes and pipe-cable combinations

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758917B1 (en) * 1997-01-24 1999-04-02 Segic Ingenierie SHEATH OR CONDUIT FOR THE PLACEMENT OF CABLES AND THE LIKE IN UNDERGROUND WORKS
DE19816368B4 (en) * 1998-04-03 2004-07-29 Meyer & John Gmbh & Co Tief- Und Rohrleitungsbau Cable trunking and method for laying a cable trunking
DE19921382C2 (en) * 1998-10-16 2001-01-18 Sabine Gruber Method for installing at least one line and / or an empty pipe in pipes that are used for supply or disposal, in particular sewer pipe systems or networks and the like.
DE19861090C2 (en) * 1998-09-21 2002-11-28 D T I Dr Trippe Ingenieurgmbh Method for laying installation objects in channels, device for carrying out the method, installation robot for carrying out the method, and installed object

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2151206A (en) * 1936-01-14 1939-03-21 Geophysical Res Corp Drill stem section
US4197033A (en) * 1978-02-22 1980-04-08 Raymond International Builders, Inc. Method of installing a pipeline
US4954106A (en) * 1989-02-08 1990-09-04 Shuh Chin Lin Aquatic sports device
US20010010781A1 (en) * 1998-07-30 2001-08-02 Martin Prusak Method of laying data cables and the like in underground pipes and pipe-cable combinations
US6572306B2 (en) * 1998-07-30 2003-06-03 Martin Prusak Method of laying data cables and the like in underground pipes and pipe-cable combinations

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070087186A1 (en) * 2005-10-14 2007-04-19 3M Innovative Properties Company Privacy film
GB2462533A (en) * 2008-08-12 2010-02-17 I3 Group Ltd A cable guide that minimises turbulence within a flow channel.
GB2462533B (en) * 2008-08-12 2013-03-13 I3 Group Ltd Laying network cables in sewers

Also Published As

Publication number Publication date
DE60202283D1 (en) 2005-01-20
ATE285135T1 (en) 2005-01-15
EP1391973A1 (en) 2004-02-25
EP1391973B1 (en) 2004-12-15

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AS Assignment

Owner name: ALCATEL, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NOTHOFER, KLAUS;LI, HONG;REEL/FRAME:014258/0120

Effective date: 20030430

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE