FR2762376A3 - Water hose of PVC - Google Patents

Water hose of PVC Download PDF

Info

Publication number
FR2762376A3
FR2762376A3 FR9711440A FR9711440A FR2762376A3 FR 2762376 A3 FR2762376 A3 FR 2762376A3 FR 9711440 A FR9711440 A FR 9711440A FR 9711440 A FR9711440 A FR 9711440A FR 2762376 A3 FR2762376 A3 FR 2762376A3
Authority
FR
France
Prior art keywords
layer
pvc
net
knitted
polyester
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
FR9711440A
Other languages
French (fr)
Other versions
FR2762376B3 (en
Inventor
Freitas Ilidio Oliveira
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.)
IBOTEC Lda
Original Assignee
IBOTEC Lda
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 IBOTEC Lda filed Critical IBOTEC Lda
Publication of FR2762376A3 publication Critical patent/FR2762376A3/en
Application granted granted Critical
Publication of FR2762376B3 publication Critical patent/FR2762376B3/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B5/026—Knitted fabric
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • D03D3/02—Tubular fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
    • D04B1/225—Elongated tubular articles of small diameter, e.g. coverings or reinforcements for cables or hoses
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/02—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof made from particular 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/085—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more braided 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0276—Polyester 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
    • B32B2327/00—Polyvinylhalogenides
    • B32B2327/06—PVC, i.e. polyvinylchloride
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

A water hose, mainly for water sprinkling, consists of a plasticised PVC inner tube (2), a reinforcing braided polyester fabric (3), an axial micro-layer (4) of plasticised PVC, a knitted polyester

Description

TUYAU FLEXIBLE PERFECTIONNE POUR ADDUCTION D'EAU. IMPROVED FLEXIBLE HOSE FOR WATER SUPPLY.

La présente invention a pour objet un tuyau flexible perfectionné pour adduction d'eau pouvant être utilisé notamment pour l'arrosage. The present invention relates to an improved flexible hose for water supply which can be used in particular for watering.

La nouveauté du tuyau flexible de l'invention consiste à utiliser un filet renforcé en fil et un filet de fil tricoté, de sorte qu'on obtient un comportement excellent du tuyau quant à la pression et à la résistance à la torsion, la torsion constituant l'un des principaux problèmes à résoudre apparaissant dans ce type de tuyau flexible utilisé pour l'arrosage, vu que, les longueurs de tuyaux étant considérables, il se produit des torsions dans les tuyaux qui étranglent la circulation de l'eau. The novelty of the flexible pipe of the invention consists in using a thread-reinforced net and a knitted thread net, so that an excellent behavior of the pipe is obtained with regard to pressure and resistance to torsion, the torsion constituting one of the main problems to be solved appears in this type of flexible hose used for watering, since the lengths of the pipes being considerable, there are twists in the pipes which constrict the circulation of water.

Généralement, les tuyaux flexibles traditionnels sont fabriqués au moyen d'une machine à tresser et à tricoter. Typically, traditional flexible hoses are made using a braiding and knitting machine.

Le tuyau flexible présente une couche intérieure cylindrique à surface lisse sur laquelle s'enroule un filet tricoté ou tressé de renforcement et une couche extérieure de recouvrement. The flexible pipe has a cylindrical inner layer with a smooth surface on which is wound a knitted or braided reinforcement net and an outer covering layer.

Le tuyau de l'invention présente une couche intérieure tubulaire sur laquelle s'enroule un renforcement en fil de polyester et, sur ce renforcement, est disposée une couche tubulaire de revêtement sur laquelle est également disposée extérieurement une couche de filet tricoté qui est protégée par une couche tubulaire de revêtement extérieur. The pipe of the invention has a tubular inner layer on which is wound a reinforcement in polyester thread and, on this reinforcement, is arranged a tubular coating layer on which is also disposed externally a layer of knitted net which is protected by a tubular outer coating layer.

Le tuyau de l'invention utilise donc les deux procédés de renforcement combinés en une seule réalisation, d'où l'amélioration de la qualité, de la résistance à la traction et à la pression que le tuyau de l'invention présente par rapport aux autres tuyaux flexibles connus. The hose of the invention therefore uses the two reinforcement methods combined in a single embodiment, hence the improvement in quality, in tensile and pressure resistance that the hose of the invention has compared to other known flexible hoses.

Les tuyaux flexibles sont réalisés en matière plastique, par exemple du genre PVC, HLPE, en caoutchouc ou en d'autres matières et sont généralement obtenus par un procédé d'extrusion. The flexible pipes are made of plastic, for example of the PVC, HLPE, rubber or other materials and are generally obtained by an extrusion process.

Pour que ces tuyaux deviennent plus résistants à la torsion et à la pression, ils sont traditionnellement recouverts d'une couche en fil de polyester.  To make these pipes more resistant to twisting and pressure, they are traditionally covered with a layer of polyester thread.

Dans ce recouvrement, les fils sont entrelacés entre eux et l'on obtient un filet uniforme. Ce recouvrement est réalisé au moyen de machines à tresser et à tricoter simultanément, les machines recouvrant alors la couche intérieure du tuyau. In this covering, the threads are interlaced with each other and a uniform thread is obtained. This covering is achieved by means of braiding and knitting machines simultaneously, the machines then covering the inner layer of the pipe.

En plus de combiner les deux systèmes, I'invention permet d'obtenir un tuyau d'une plus grande résistance en comparaison avec d'autres produits commercialisés sur le marché. In addition to combining the two systems, the invention makes it possible to obtain a hose of greater resistance in comparison with other products sold on the market.

En conséquence, compte tenu de ce qui a été indiqué précédemment, le tuyau de l'invention est flexible, et parfaitement cylindrique et est renforcé par un filet tressé en polyester qui est recouvert à son tour par une microcouche recouverte par un nouveau renforcement en polyester tricoté, une cinquième couche donnant un finissage parfaitement cylindrique. Consequently, in view of what has been indicated above, the pipe of the invention is flexible, and perfectly cylindrical and is reinforced by a braided polyester net which is in turn covered by a micro-layer covered by a new polyester reinforcement. knitted, a fifth layer giving a perfectly cylindrical finish.

En ce qui concerne l'élasticité et la torsion, ce tuyau présente des caractéristiques plus positives que les tuyaux normalement fabriqués avec des filets qui sont commercialisés sur le marché. With regard to elasticity and torsion, this pipe has more positive characteristics than pipes normally manufactured with threads which are marketed on the market.

Le tuyau de l'invention peut être constitué comme suit:
- une couche intérieure composée par du PVC (chlorure de polyvinyle) plastifié;
- une couche de fil de renforcement en polyester;
- une microcouche composée par du PVC plastifié;
- une couche de fil tricoté, également en polyester;
- une couche extérieure composée par du PVC.The pipe of the invention can be constituted as follows:
- an inner layer composed of plasticized PVC (polyvinyl chloride);
- a layer of polyester reinforcing thread;
- a micro-layer composed of plasticized PVC;
- a layer of knitted yarn, also made of polyester;
- an outer layer composed of PVC.

Afin de comprendre plus aisément, non seulement la constitution, mais également l'utilisation même du tuyau de l'invention, on rapporte ciaprès un exemple de réalisation pratique, représenté au dessin de la figure unique annexée et, cette réalisation n'étant donnée qu'à titre d'exemple et ne présentant en aucun cas un caractère limitatif. In order to understand more easily, not only the constitution, but also the very use of the pipe of the invention, an example of practical embodiment is shown below, represented in the drawing of the attached single figure and, this embodiment being given only 'by way of example and in no way being limiting in nature.

La figure unique annexée montre en perspective, avec arrachement, un bout de tuyau flexible 1 constitué selon l'invention.  The single appended figure shows in perspective, with cutaway, a piece of flexible pipe 1 constituted according to the invention.

Le tuyau flexible I est constitué par une couche intérieure tubulaire 2 en PVC à l'extérieur de laquelle est disposée une couche de renforcement 3 en fil de polyester qui forme un filet tressé sur lequel se trouve disposée une microcouche de revêtement coaxial 4 en PVC. The flexible pipe I is constituted by an inner tubular layer 2 of PVC on the outside of which is placed a reinforcing layer 3 of polyester thread which forms a braided net on which is placed a micro-layer of coaxial coating 4 of PVC.

Sur cette microcouche 4 en PVC se trouve disposé un nouveau renforcement qui définit une couche 5 de filet tricoté en fil de polyester, et comme finissage externe, une couche parfaitement cylindrique 6 de revêtement extérieur en PVC. On this PVC microlayer 4 is placed a new reinforcement which defines a layer 5 of knitted netting in polyester thread, and as external finishing, a perfectly cylindrical layer 6 of PVC outer covering.

Bien entendu, I'invention est nullement limitée au mode de réalisation illustrée et décrit qui n'a été donné qu'à titre d'exemple.  Of course, the invention is in no way limited to the illustrated and described embodiment which has been given only by way of example.

Claims (3)

REVENDICATIONS 1. Tuyau flexible perfectionné pour adduction d'eau, notamment pour l'arrosage, caractérisé par le fait qu'il est constitué par une couche extrême intérieure tubulaire (2) qui présente extérieurement une couche de renforcement qui forme un filet tressé (3) lequel est recouvert dans le sens axial par une microcouche de revêtement plastifiée (4) sur lequel se trouve disposée une couche de filet de renforcement en fil tricoté (5) qui est recouverte à son tour par une couche extérieure cylindrique extrême plastifiée. 1. Improved flexible hose for water supply, especially for sprinkling, characterized in that it is constituted by an inner tubular end layer (2) which has on the outside a reinforcing layer which forms a braided net (3) which is covered in the axial direction by a plasticized coating micro-layer (4) on which is disposed a layer of reinforcing knitted yarn (5) which is in turn covered by an outer cylindrical plasticized outer layer. 2. Tuyau selon la revendication 1 caractérisé en ce que la couche intérieure (2), la microcouche intérieure (4) et la couche extérieure (6) sont constituées en PVC. 2. Pipe according to claim 1 characterized in that the inner layer (2), the inner micro-layer (4) and the outer layer (6) are made of PVC. 3. Tuyau selon la revendication 1 ou la revendication 2 caractérisé en ce que la matière du fil du filet tressé (3) et du filet tricoté (5) est du polyester.  3. Pipe according to claim 1 or claim 2 characterized in that the material of the thread of the braided net (3) and the knitted net (5) is polyester.
FR9711440A 1997-04-16 1997-09-15 IMPROVED FLEXIBLE HOSE FOR WATER SUPPLY Expired - Fee Related FR2762376B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES09701004U ES1036991Y (en) 1997-04-16 1997-04-16 PERFECTED FLEXIBLE TUBE FOR WATER CONDUCTION.

Publications (2)

Publication Number Publication Date
FR2762376A3 true FR2762376A3 (en) 1998-10-23
FR2762376B3 FR2762376B3 (en) 1999-03-19

Family

ID=8299249

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9711440A Expired - Fee Related FR2762376B3 (en) 1997-04-16 1997-09-15 IMPROVED FLEXIBLE HOSE FOR WATER SUPPLY

Country Status (5)

Country Link
DE (1) DE19727142A1 (en)
ES (1) ES1036991Y (en)
FR (1) FR2762376B3 (en)
IT (1) IT236086Y1 (en)
PT (1) PT9394U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793866A1 (en) * 1999-05-18 2000-11-24 Sotep Method for manufacturing supple reinforced pipe involves forming two knittings having mesh lines forming angle a with same absolute values, but opposite signs so that rotation forces cancel each other
EP1880812A1 (en) * 2006-07-19 2008-01-23 Neoperl GmbH Method for trimming a hose section and hose section
WO2010049762A1 (en) * 2008-10-31 2010-05-06 Tecnotubi Picena S.R.L. Irrigation hose with high pressure resistance and torsion strength
ITVI20090248A1 (en) * 2009-10-09 2011-04-10 Fitt Spa FLEXIBLE PIPE IN REGENERATED PVC, AS WELL AS THE METHOD OF REALIZING THE SAME
WO2011161576A1 (en) 2010-06-23 2011-12-29 Fitt S.P.A. Flexible braided garden hose
CN103878990A (en) * 2014-03-10 2014-06-25 上海飞舟博源石油装备技术有限公司 Production line of thermoplastic continuous tube shuffled by fiber prepreg tapes and bundles
US9636899B2 (en) 2012-08-29 2017-05-02 Neoperl Gmbh Method for cutting to length a piece of tube from a tube
US10088086B2 (en) 2007-07-11 2018-10-02 Neoperl Gmbh Sectioned hose

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPN20000030A1 (en) * 2000-05-18 2001-11-18 Uniflex Utiltime Spa FLEXIBLE HOSE, IN PARTICULAR FOR IRRIGATION
IT251754Y1 (en) * 2000-10-16 2004-01-20 Uniflex Utiltime Spa FLEXIBLE HOSE FOR IRRIGATION
DE20205321U1 (en) * 2002-04-05 2002-06-06 Meister Winfried Hose for the passage of a liquid medium
IT1368875B (en) 2006-06-13 2009-12-30 Fitt Spa FLEXIBLE HOSE WITH NON-PHTHALIC PLASTICIZING ADDITIVES FOR THE TRANSPORT OF FOOD LIQUIDS
ITVI20080260A1 (en) * 2008-11-04 2010-05-05 Fitt Spa FLEXIBLE HOSE FOR MULTILAYER IRRIGATION
DE102013003831B4 (en) 2013-03-07 2016-09-15 Neoperl Gmbh Sanitary hose with an inner tube and a sheath
DE202013002155U1 (en) 2013-03-07 2014-06-11 Neoperl Gmbh Sanitary hose with an inner tube and a sheath
DE102017105391A1 (en) * 2017-03-14 2018-09-20 Veritas Ag FLUID CABLE WITH AN EXTERNAL TEXTILE STRENGTHENER

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793866A1 (en) * 1999-05-18 2000-11-24 Sotep Method for manufacturing supple reinforced pipe involves forming two knittings having mesh lines forming angle a with same absolute values, but opposite signs so that rotation forces cancel each other
EP1880812A1 (en) * 2006-07-19 2008-01-23 Neoperl GmbH Method for trimming a hose section and hose section
US10088086B2 (en) 2007-07-11 2018-10-02 Neoperl Gmbh Sectioned hose
WO2010049762A1 (en) * 2008-10-31 2010-05-06 Tecnotubi Picena S.R.L. Irrigation hose with high pressure resistance and torsion strength
ITVI20090248A1 (en) * 2009-10-09 2011-04-10 Fitt Spa FLEXIBLE PIPE IN REGENERATED PVC, AS WELL AS THE METHOD OF REALIZING THE SAME
WO2011161576A1 (en) 2010-06-23 2011-12-29 Fitt S.P.A. Flexible braided garden hose
US9636899B2 (en) 2012-08-29 2017-05-02 Neoperl Gmbh Method for cutting to length a piece of tube from a tube
CN103878990A (en) * 2014-03-10 2014-06-25 上海飞舟博源石油装备技术有限公司 Production line of thermoplastic continuous tube shuffled by fiber prepreg tapes and bundles
CN103878990B (en) * 2014-03-10 2016-05-11 上海飞舟博源石油装备技术有限公司 The production line of the thermoplasticity continuous-tube of a kind of fiber prepreg tape, bundle shuffling

Also Published As

Publication number Publication date
FR2762376B3 (en) 1999-03-19
DE19727142A1 (en) 1998-10-22
ITTO970144U1 (en) 1999-01-11
ES1036991Y (en) 1998-05-01
PT9394T (en) 1998-11-30
PT9394U (en) 1999-12-31
ES1036991U (en) 1997-12-16
IT236086Y1 (en) 2000-07-26

Similar Documents

Publication Publication Date Title
FR2762376A3 (en) Water hose of PVC
US4308895A (en) Flame bonded hose
US4371415A (en) Process for manufacturing synthetic resin hose having a reinforcing member embedded therein and apparatus thereof
CA2965908C (en) Extensible flexible hose, and method and production line for continuously manufacturing thereof
JP6845872B2 (en) Expandable flexible hose
US20120042980A1 (en) Reinforced Flexible Hose with High Pressure Strength and Method for its Manufacturing
US3189053A (en) Flexible hose
US3502527A (en) Method of making a helically grooved reinforced hose
EP0527512A1 (en) Flexible hose with knitted reinforcement
GB1146872A (en) Improvements in hose pipes
FR2849148A3 (en) Reinforced flexible garden hose comprises knitted fabric forming rows of stitches with axis parallel to hose axis with threads progressively displaced diagonally in opposite directions
FR2846068A1 (en) Flexible hosepipe, especially for watering, has braided and knitted reinforcing layers between inner and outer plastic layers
FR2815392A1 (en) Flexible hose is provided with two layers of woven reinforcing material of which the inner layer takes the form of a knitting whose warp elements are inclined relative to the hose axis
BE1004649A3 (en) Adapted to shaft tube lines interior trim tube.
JP2003502596A5 (en)
BE858340A (en) TUBE FOR THE TRANSPORT OF PRESSURIZED FLUID
JP2016172405A (en) Manufacturing method of hose
US7108018B1 (en) Reinforced flexible hose
JPS6245054B2 (en)
FR2826092A1 (en) Supple synthetic pipe e.g. garden hose has knitted reinforcing filament with stitch loops angled in opposite directions to resist torsion
KR200274794Y1 (en) Bending protect and pressureproof garden hose
US2967341A (en) Flexible line assembly
FR2797933A1 (en) Flexible plastic tube such as hosepipe has inner layer with spiral ribs and intermediate knitted or braided filament layer
BE700947A (en)
JPS6140133A (en) Preparation of flexible hose

Legal Events

Date Code Title Description
ST Notification of lapse