WO2016135550A1 - Method for manufacturing a polygonal tubular device for the acoustic isolation - Google Patents

Method for manufacturing a polygonal tubular device for the acoustic isolation Download PDF

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Publication number
WO2016135550A1
WO2016135550A1 PCT/IB2016/000181 IB2016000181W WO2016135550A1 WO 2016135550 A1 WO2016135550 A1 WO 2016135550A1 IB 2016000181 W IB2016000181 W IB 2016000181W WO 2016135550 A1 WO2016135550 A1 WO 2016135550A1
Authority
WO
WIPO (PCT)
Prior art keywords
fabric
joining
insulating material
polygonal
tubular device
Prior art date
Application number
PCT/IB2016/000181
Other languages
French (fr)
Inventor
Raffaele Pettinato
Danilo Previsdomini
Original Assignee
Raffaele Pettinato
Danilo Previsdomini
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 Raffaele Pettinato, Danilo Previsdomini filed Critical Raffaele Pettinato
Publication of WO2016135550A1 publication Critical patent/WO2016135550A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • F16L55/0336—Noise absorbers by means of sound-absorbing materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/021—Shape or form of insulating materials, with or without coverings integral with the insulating materials comprising a single piece or sleeve, e.g. split sleeve, two half sleeves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
    • F16L59/026—Mattresses, mats, blankets or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00—Thermal insulation in general
    • F16L59/04—Arrangements using dry fillers, e.g. using slag wool which is added to the object to be insulated by pouring, spreading, spraying or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0263—Insulation for air ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F24F13/0272—Modules for easy installation or transport
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/008—Sewing, stitching
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B32B2307/102—Insulating
    • 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
    • B32B2315/00—Other materials containing non-metallic inorganic compounds not provided for in groups B32B2311/00 - B32B2313/04
    • B32B2315/08—Glass
    • B32B2315/085—Glass fiber cloth or fabric
    • 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
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • 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
    • B32B2607/00—Walls, panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Definitions

  • the present invention relates to a method for manufacturing a tubular device of round or polygonal shape for acoustic insulation, in particular for the insulation of pipes for the forced or natural ventilation.
  • Tubular devices are known for the sound insulation of rigid or semi-rigid ventilation pipes.
  • the object of the present invention is to provide a method for manufacturing a round or polygonal tubular device for acoustic insulation of ventilation tubes of flexible and soft type.
  • Another object is to provide for a method for making a round or polygonal tubular device for acoustic insulation, which is of simple construction.
  • a method for manufacturing a tubular device of round or polygonal shape for acoustic insulation that comprises: a first flexible fabric of glass fiber; a second flexible fabric of glass fiber; an insulating material made of fibreglass, placed between said first fabric and said second fabric; said method comprises the steps of: joining together said first fabric and said insulating material by means of at least two longitudinal joining means; fold in two said first fabric and said insulating material so as to join the outer sides and so that said insulating material is arranged externally; joining said outer sides by means of longitudinal connection means to form an intermediate tubular element; placing on said intermediate tubular element said second fabric; joining said intermediate tubular element and said second fabric, to form said polygonal tubular device, by means of transverse joining means placed in proximity of the heads of said polygonal tubular device.
  • Figure 1 shows a polygonal tubular device for acoustic insulation, in a first phase of manufacturing, according to the present invention
  • Figure 2 shows a polygonal tubular device for the acoustic isolation, in a second phase of manufacturing, according to the present invention
  • Figure 3 shows a polygonal tubular device for acoustic insulation, in a third phase of manufacturing, according to the present invention
  • Figure 4 shows a polygonal tubular device for acoustic insulation, in a fourth phase of manufacturing, according to the present invention
  • Figure 5 shows a polygonal tubular device for acoustic insulation, in a fifth phase of manufacturing, according to the present invention
  • Figure 6 shows a polygonal tubular device for acoustic insulation, in a sixth phase of manufacturing, according to the present invention
  • a polygonal tubular device 10 for acoustic insulation comprises a first flexible fabric 11 in a glass fiber fabric for example from 120-250 g/m A 2, or other material suitable for the purpose, which constitutes the inner sheath of the device 10, a second flexible fabric 12 in a glass fiber fabric for example from 200-250 g/m A 2, or other material suitable for the purpose, which constitutes the outer sheath of the device 10.
  • first fabric 11 and second fabric 12 are placed an insulating acoustic material 13 in a tubular shape for example of fibreglass from 15-25 kg/m A 3 with the thickness for example of 40-50mm, or other material suitable for the purpose, for example of the type having trade name ULTRACOUSTIC or Ekovetro®M.
  • the fibreglass makes the acoustic insulation and at the same time, also carries out the thermal insulation.
  • the length of the device 10 may be any according to requirements, for example 60 cm.
  • it is placed on a floor the insulating material 13 and above the first fabric 11.
  • the size of the first fabric 11 and the insulating material 13 is that required to provide a device 10, and then for a tubular device 10, for example a square cross section long 60 cm and with a side of 10 cm, the size will be 60 x 40 cm.
  • Sewings 14 are made on the two extreme sides (or external) 15 and 16, in the longitudinal direction of the tube (along the 60 cm length), then, in the case of a square section tubular device 10, are carried out three more longitudinal sewing 17 equidistant spaced from each other and from the first two sewings 14.
  • the first fabric 11 and the insulating material 13 stitched to each other, are folded along the central sewing 17 so as to have the outer sides 15 and 16 surmounted between them, and the insulating material 13 external.
  • the external sides 15 and 16 are then sewn on the edge with a further sewing 18.
  • sewings may be used staples or other fastening system suitable for the purpose and at the state of technic.
  • the second fabric 12 On the tubular element 20 is fitted the second fabric 12, preferably already in a tubular shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Laminated Bodies (AREA)

Abstract

Method for manufacturing a tubular device (10) of round or polygonal shape for acoustic insulation that comprises: a first flexible fabric (11) of glass fiber; a second flexible fabric (12) of glass fiber; an insulating material (13) made of fibre glass, placed between said first fabric (11) and said second fabric (12);said method comprises the steps of: joining together said first fabric (11) and said insulating material (13) by means of at least two longitudinal joining means(14); fold in two said first fabric (11) and said insulating material (13) so as to join the outer sides (15, 16) and so that said insulating material (13) is arranged externally; joining said outer sides (15, 16) by means of longitudinal connection means (18) to form an intermediate tubular element (20); placing on said intermediate tubular element (20) said second fabric (12); joining said intermediate tubular element (20) and said second fabric (12), to form said polygonal tubular device (10), by means of transverse joining means (21) placed in proximity of the heads of said polygonal tubular device (10).

Description

Method for manufacturing a tubular device of round or polygonal shape for acoustic insulation
DESCRIPTION
The present invention relates to a method for manufacturing a tubular device of round or polygonal shape for acoustic insulation, in particular for the insulation of pipes for the forced or natural ventilation.
Tubular devices are known for the sound insulation of rigid or semi-rigid ventilation pipes.
The object of the present invention is to provide a method for manufacturing a round or polygonal tubular device for acoustic insulation of ventilation tubes of flexible and soft type.
Another object is to provide for a method for making a round or polygonal tubular device for acoustic insulation, which is of simple construction.
In accordance with the present invention, these aims and others are achieved by a method for manufacturing a tubular device of round or polygonal shape for acoustic insulation that comprises: a first flexible fabric of glass fiber; a second flexible fabric of glass fiber; an insulating material made of fibreglass, placed between said first fabric and said second fabric; said method comprises the steps of: joining together said first fabric and said insulating material by means of at least two longitudinal joining means; fold in two said first fabric and said insulating material so as to join the outer sides and so that said insulating material is arranged externally; joining said outer sides by means of longitudinal connection means to form an intermediate tubular element; placing on said intermediate tubular element said second fabric; joining said intermediate tubular element and said second fabric, to form said polygonal tubular device, by means of transverse joining means placed in proximity of the heads of said polygonal tubular device.
Additional features of the invention are described in the dependent claims.
Thanks to the present invention a tubular device for the flexible acoustic insulation and collapsible on itself is obtained.
It will also be easily transported, thanks to the minimum space when is squeezed on itself, being all the materials used flexible.
The characteristics and advantages of the present invention will become apparent from the following detailed description of an embodiment thereof, illustrated by way of non- limiting example in the accompanying drawings, in which:
Figure 1 shows a polygonal tubular device for acoustic insulation, in a first phase of manufacturing, according to the present invention;
Figure 2 shows a polygonal tubular device for the acoustic isolation, in a second phase of manufacturing, according to the present invention;
Figure 3 shows a polygonal tubular device for acoustic insulation, in a third phase of manufacturing, according to the present invention;
Figure 4 shows a polygonal tubular device for acoustic insulation, in a fourth phase of manufacturing, according to the present invention;
Figure 5 shows a polygonal tubular device for acoustic insulation, in a fifth phase of manufacturing, according to the present invention;
Figure 6 shows a polygonal tubular device for acoustic insulation, in a sixth phase of manufacturing, according to the present invention;
Figure 7 shows a series of variants of tubular devices of round and polygonal shape for sound insulation, according to the present invention. Referring to the attached figures, a polygonal tubular device 10 for acoustic insulation, according to the present invention, comprises a first flexible fabric 11 in a glass fiber fabric for example from 120-250 g/mA2, or other material suitable for the purpose, which constitutes the inner sheath of the device 10, a second flexible fabric 12 in a glass fiber fabric for example from 200-250 g/mA2, or other material suitable for the purpose, which constitutes the outer sheath of the device 10.
Between first fabric 11 and second fabric 12 is placed an insulating acoustic material 13 in a tubular shape for example of fibreglass from 15-25 kg/mA3 with the thickness for example of 40-50mm, or other material suitable for the purpose, for example of the type having trade name ULTRACOUSTIC or Ekovetro®M.
The fibreglass makes the acoustic insulation and at the same time, also carries out the thermal insulation.
The length of the device 10 may be any according to requirements, for example 60 cm. For carrying out the device 10, it is placed on a floor the insulating material 13 and above the first fabric 11.
The size of the first fabric 11 and the insulating material 13 is that required to provide a device 10, and then for a tubular device 10, for example a square cross section long 60 cm and with a side of 10 cm, the size will be 60 x 40 cm.
Sewings 14 are made on the two extreme sides (or external) 15 and 16, in the longitudinal direction of the tube (along the 60 cm length), then, in the case of a square section tubular device 10, are carried out three more longitudinal sewing 17 equidistant spaced from each other and from the first two sewings 14.
The first fabric 11 and the insulating material 13 stitched to each other, are folded along the central sewing 17 so as to have the outer sides 15 and 16 surmounted between them, and the insulating material 13 external.
The external sides 15 and 16 are then sewn on the edge with a further sewing 18.
Alternatively to the sewings may be used staples or other fastening system suitable for the purpose and at the state of technic.
Pushing the outer sides of the manufactured article will be obtained a tubular element 20 with a square section.
On the tubular element 20 is fitted the second fabric 12, preferably already in a tubular shape.
It is then made the top sewing 21, edgings or other system suitable for the purpose, to fix the second fabric 12 to the tubular element 20, and get the device 10.
In proximity of the top sewing 21 are fixed one or more clips, buttons, Velcro or other system for the purpose, 22 for each side, for merging multiple devices 10 between them. With the same process of this embodiment, you can obtain other forms in addition to the square, carrying out the appropriate number of longitudinal sewings, for example, triangular 30, octagonal 31, or still other forms as rectangular, hexagonal etc., or even circular 32.
In fact, they are realized sewings or other fastening system, suitable for the purpose, for each edge of the polygon to be obtained.

Claims

1. Method for manufacturing a tubular device of round or polygonal shape for acoustic insulation that comprises: a first flexible fabric of glass fiber; a second flexible fabric of glass fiber; an insulating material made of fibreglass, placed between said first fabric and said second fabric; said method comprises the steps of: joining together said first fabric and said insulating material by means of at least two longitudinal joining means; fold in two said first fabric and said insulating material so as to join the outer sides and so that said insulating material is arranged externally; joining said outer sides by means of longitudinal connection means to form an intermediate tubular element; placing on said intermediate tubular element said second fabric; joining said intermediate tubular element and said second fabric, to form said polygonal tubular device, by means of transverse joining means placed in proximity of the heads of said polygonal tubular device.
2. Method according to the preceding claim characterized in that said connection means comprise a sewing.
3. Method according to a preceding claim characterized in that said connection means comprise staples.
4. Method according to a preceding claim characterized in that said device has a substantially square cross section.
5. Method according to a preceding claim characterized in that said device has a substantially triangular cross section.
6. Method according to a preceding claim characterized in that said device has a substantially hexagonal cross section.
7. Method according to a preceding claim characterized in that said second fabric has been sewn in advance to form a second tubular fabric.
PCT/IB2016/000181 2015-02-27 2016-02-23 Method for manufacturing a polygonal tubular device for the acoustic isolation WO2016135550A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITSO20150003 2015-02-27
ITSO2015A000003 2015-02-27

Publications (1)

Publication Number Publication Date
WO2016135550A1 true WO2016135550A1 (en) 2016-09-01

Family

ID=53053028

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/000181 WO2016135550A1 (en) 2015-02-27 2016-02-23 Method for manufacturing a polygonal tubular device for the acoustic isolation

Country Status (1)

Country Link
WO (1) WO2016135550A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818948A (en) * 1972-07-18 1974-06-25 Johns Manville Flexible and foldable conduit
WO1999013185A1 (en) * 1997-09-10 1999-03-18 Certainteed Corporation Flexible mineral fiber duct wrap insulation blanket incorporating a strip of adhesive for securing adjacent blankets
US6000437A (en) * 1998-01-16 1999-12-14 Certain Teed Corporation Coated liner for curved ducts
WO2009145698A1 (en) * 2008-05-31 2009-12-03 Educt Ab Duct means for an air flow or a gas flow and a method for manufacturing, handling and mounting said duct means
WO2015039772A1 (en) * 2013-09-19 2015-03-26 Carpenteria Leggera Aerotecnica - C.L.A. - S.R.L. Soundproofing device, particularly for ventilation channels

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818948A (en) * 1972-07-18 1974-06-25 Johns Manville Flexible and foldable conduit
WO1999013185A1 (en) * 1997-09-10 1999-03-18 Certainteed Corporation Flexible mineral fiber duct wrap insulation blanket incorporating a strip of adhesive for securing adjacent blankets
US6000437A (en) * 1998-01-16 1999-12-14 Certain Teed Corporation Coated liner for curved ducts
WO2009145698A1 (en) * 2008-05-31 2009-12-03 Educt Ab Duct means for an air flow or a gas flow and a method for manufacturing, handling and mounting said duct means
WO2015039772A1 (en) * 2013-09-19 2015-03-26 Carpenteria Leggera Aerotecnica - C.L.A. - S.R.L. Soundproofing device, particularly for ventilation channels

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