EP1041339B2 - Composite open cap for large industrial and medical gas bottles - Google Patents

Composite open cap for large industrial and medical gas bottles Download PDF

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Publication number
EP1041339B2
EP1041339B2 EP00400537A EP00400537A EP1041339B2 EP 1041339 B2 EP1041339 B2 EP 1041339B2 EP 00400537 A EP00400537 A EP 00400537A EP 00400537 A EP00400537 A EP 00400537A EP 1041339 B2 EP1041339 B2 EP 1041339B2
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EP
European Patent Office
Prior art keywords
insert
cowling
mould
protective
metal
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.)
Expired - Lifetime
Application number
EP00400537A
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German (de)
French (fr)
Other versions
EP1041339B1 (en
EP1041339A1 (en
Inventor
Etienne Gounot
Alain Taillandier
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude
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Application filed by Air Liquide SA, LAir Liquide SA a Directoire et Conseil de Surveillance pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Publication of EP1041339A1 publication Critical patent/EP1041339A1/en
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Publication of EP1041339B1 publication Critical patent/EP1041339B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/06—Closures, e.g. cap, breakable member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/054—Size medium (>1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0308—Protective caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/02—Applications for medical applications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7043—Guards and shields
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/7043—Guards and shields
    • Y10T137/7062—Valve guards

Definitions

  • the present invention relates to the field of gas containers, in particular that of gas cylinders, and more precisely the protective covers intended to equip such gas containers.
  • valves of large industrial and medical gas cylinders are protected by protective covers, commonly called caps, of the open or closed type.
  • the protection of cylinder valves is essential for safety. In the event of a fall, when transporting the bottles, the caps must provide sufficient protection for the valve so that it remains maneuverable after the bottle has fallen.
  • the EN962 standard specifies the design, construction and tests relating to these caps.
  • hats are used to handle bottles and they also contribute to their commercial image.
  • Open hats offer many advantages over closed hats. They allow, in fact, to access the gas without having to be removed, both during packaging and when using the bottle.
  • the open hats of large bottles are mainly made of metal. Indeed, the weight of these bottles from 40 to 100 kg, makes the mechanical resistance requirements of the hat very high.
  • the caps made of plastic material do not offer sufficient resistance, particularly with regard to the fixing thread on the flange of the bottle.
  • caps made of plastic material have the advantage of being able to be produced more easily, that is to say by simple molding, and are also lighter than those made of metal.
  • plastic caps have the advantage of not being sensitive to corrosion by their composition, which is not the case with certain metal caps.
  • the problem which then arises is to be able to have a protective cover for a gas container, in particular for gas bottles, having, on the one hand, the advantages of plastic caps (easy to manufacture, absence of corrosion, etc.) and, on the other hand, those of metal caps (impact resistance ).
  • the solution provided by the present invention is a bi-material cap composed of a metal insert overmolded in a cover structure of polymer material.
  • the present invention therefore relates to an open protective cover for a fluid container, in particular for a gas bottle, composed of a cover body made of polymer material comprising a metal insert or a tapped metal alloy, characterized in that the insert comprises one or more recesses and / or one or more reinforcements on its external peripheral wall making it possible to improve the fixing of the insert in the plastic of the collection body, or several reinforcements on its external peripheral wall.
  • the invention also relates to a fluid container, in particular a gas cylinder, equipped with a valve block or a valve / regulator assembly and bearing, in addition, a protective cover according to the invention .
  • the insert is produced by molding a metal alloy and subsequent tapping of its internal wall.
  • Figure 1 shows schematically different possible forms of protective cover of the open type, which are conventionally encountered in the prior art. These are usually formed from a single structure of a metal alloy.
  • FIGS 2 and 3 shows, in turn, two embodiments of cowlings 1 according to the invention.
  • the cowlings of FIGS. 2 and 3 each consist of a cowling body 1 provided, at its base 4, with a metal insert 2.
  • the insert 2 consists of a molded metal alloy, for example Zamac 5, and intended to ensure the connection between the flange of the bottle and the polymer form.
  • Its tapping dimensions are a function of the dimensions and tolerances of the flange of the bottle, as well as of the shrinkage generated by the polymer form when the cap hardens (compression of the insert).
  • the insert 2 has ribbed reinforcements 6. Recesses 7 allow, moreover, a good connection between the insert 2 and the plastic, as well as good flow at the time of molding.
  • Screw passages 11 are provided for effective fixing and blocking of the cap on the gas bottle.
  • the polymer body 1 is made of impact-modified polyamide 6, for example of Grilon TM.
  • the shape of the hat combined with the characteristics of this polymer, solves the technical problems of rigidity / absorption mentioned above.
  • the body is surmounted by a knob 3 used for handling and which may contain an electronic chip (not shown).
  • a knob 3 used for handling and which may contain an electronic chip (not shown).
  • the plastic material of the cover makes the magnetic reading of the chip easier and efficient than in the case of a metal cover.
  • the hats are made as explained below.
  • the inserts are pre-molded and tapped.
  • an overmolding is carried out which consists in placing the insert on an insert holder around the core of the polymer mold.
  • the two mold cavities close, sealing is ensured between the cavities, the core and the insert itself.
  • the polymeric material is then injected and polymerized in the mold.
  • the cap is removed from the mold and the finishing touches are carried out, for example removing burrs.
  • a protective cap according to the invention can be used to protect fragile organs, in particular taps, regulators and / or pressure gauges, gas cylinders intended for any field of activity, in particular in the field of welding, electronics. , food and health.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

La présente invention concerne le domaine des conteneurs de gaz, notamment celui des bouteilles de gaz, et plus précisément les capotages de protection destinés à équiper de tels conteneurs de gaz.The present invention relates to the field of gas containers, in particular that of gas cylinders, and more precisely the protective covers intended to equip such gas containers.

Classiquement, les robinets des grandes bouteilles de gaz industriels et médicaux sont protégés par des capotages de protection, couramment appelés chapeaux, de type ouvert ou fermé.Conventionally, the valves of large industrial and medical gas cylinders are protected by protective covers, commonly called caps, of the open or closed type.

En effet, la protection des robinets de bouteilles est essentielle pour la sécurité. En cas de chute, lors du transport des bouteilles, les chapeaux doivent assurer une protection suffisante du robinet pour que celui-ci reste manoeuvrable, après la chute de la bouteille. La norme EN962 précise la conception, la construction et les essais relatifs à ces chapeaux.The protection of cylinder valves is essential for safety. In the event of a fall, when transporting the bottles, the caps must provide sufficient protection for the valve so that it remains maneuverable after the bottle has fallen. The EN962 standard specifies the design, construction and tests relating to these caps.

Par exemple, les documents US-A-4521676, WO 98/23895 et EP-A-747796 décrivent de tels capotages de protection.For example, documents US-A-4521676, WO 98/23895 and EP-A-747796 describe such protective covers.

Par ailleurs, les chapeaux servent à la manutention des bouteilles et ils participent aussi à leur image commerciale.In addition, hats are used to handle bottles and they also contribute to their commercial image.

Les chapeaux ouverts offrent de nombreux avantages par rapport aux chapeaux fermés. Ils permettent en effet, d'accéder au gaz sans devoir être enlevés, tant lors du conditionnement que lors de l'utilisation de la bouteille.Open hats offer many advantages over closed hats. They allow, in fact, to access the gas without having to be removed, both during packaging and when using the bottle.

Ils offrent, par ailleurs, une protection suffisante du robinet en cours d'utilisation.They also provide sufficient protection for the tap during use.

Des exemples de chapeaux ouverts sont schématisés sur la figure 1.Examples of open hats are shown schematically in Figure 1.

Actuellement, les chapeaux ouverts de grandes bouteilles sont essentiellement réalisés en métal. En effet, le poids de ces bouteilles de 40 à 100 kg, rend les exigences de résistance mécanique du chapeau très élevées.Currently, the open hats of large bottles are mainly made of metal. Indeed, the weight of these bottles from 40 to 100 kg, makes the mechanical resistance requirements of the hat very high.

Les chapeaux en matériau plastique n'offrent pas une résistance suffisante, au niveau notamment du taraudage de fixation sur la collerette de la bouteille.The caps made of plastic material do not offer sufficient resistance, particularly with regard to the fixing thread on the flange of the bottle.

En effet, il a été constaté qu'en cas de choc, les filets plastiques se détériorent rapidement et le chapeau est éjecté.Indeed, it has been observed that in the event of an impact, the plastic nets deteriorate rapidly and the cap is ejected.

Cependant, les chapeaux en matériau plastique présentent l'avantage de pouvoir être fabriqués plus facilement, c'est-à-dire par simple moulage, et sont aussi plus légers que ceux en métal.However, caps made of plastic material have the advantage of being able to be produced more easily, that is to say by simple molding, and are also lighter than those made of metal.

De plus, les chapeaux en matériau plastique présentent l'avantage de ne pas être sensibles à la corrosion de par leur composition, ce qui n'est pas le cas de certains chapeaux métalliques.In addition, plastic caps have the advantage of not being sensitive to corrosion by their composition, which is not the case with certain metal caps.

Le problème qui se pose alors est de pouvoir disposer d'un capotage de protection pour récipient de gaz, notamment pour bouteilles de gaz, présentant, d'une part, les avantages des chapeaux plastiques (fabrication facile, absence de corrosion...) et, d'autre part, ceux des chapeaux métalliques (résistance aux chocs ...).The problem which then arises is to be able to have a protective cover for a gas container, in particular for gas bottles, having, on the one hand, the advantages of plastic caps (easy to manufacture, absence of corrosion, etc.) and, on the other hand, those of metal caps (impact resistance ...).

En d'autres termes, de pouvoir disposer d'un capotage de protection pouvant répondre favorablement aux contraintes techniques suivantes :

  • compromis entre rigidité (ne pas glisser, ne pas heurter le volant de manoeuvre lors du choc de la chute) et déformation (absorption de l'énergie de choc) ;
  • stabilité des propriétés dans les plages de température d'utilisation et dans le temps ;
  • cohérence, montage et fixation facile de l'ensemble chapeau-robinet sur la bouteille ;
  • ergonomie de manutention et d'utilisation de la bouteille c'est-à-dire du robinet et du détendeur situés sous le chapeau ; et
  • prix de revient équivalent à celui d'un chapeau en métal.
In other words, to be able to have a protective cover that can respond favorably to the following technical constraints:
  • compromise between rigidity (do not slip, do not strike the handwheel during the impact of the fall) and deformation (absorption of impact energy);
  • stability of properties in the temperature ranges of use and over time;
  • consistency, easy assembly and fixing of the cap-valve assembly on the bottle;
  • ergonomics of handling and use of the bottle, that is to say the tap and regulator located under the cap; and
  • cost equivalent to that of a metal hat.

La solution apportée par la présente invention est un chapeau bi-matière composé d'un insert en métal surmoulé dans une structure de capotage en matériau polymère.The solution provided by the present invention is a bi-material cap composed of a metal insert overmolded in a cover structure of polymer material.

La présente invention concerne alors un capotage de protection ouvert pour récipient de fluide, en particulier pour bouteille de gaz, composé d'un corps de capotage en matériau polymère comprenant un insert en métal ou en alliage métallique taraudé, caractérisé en ce que l'insert comporte un ou des évidements et/ou un ou plusieurs renforts sur sa paroi périphérique externe permettant d'améliorer la fixation de l'insert dans le plastique du corps de captage, ou plusieurs renforts sur sa paroi périphérique externe.The present invention therefore relates to an open protective cover for a fluid container, in particular for a gas bottle, composed of a cover body made of polymer material comprising a metal insert or a tapped metal alloy, characterized in that the insert comprises one or more recesses and / or one or more reinforcements on its external peripheral wall making it possible to improve the fixing of the insert in the plastic of the collection body, or several reinforcements on its external peripheral wall.

Selon le cas, le capotage selon l'invention peut comprendre l'une ou plusieurs des caractéristiques suivantes :

  • l'insert a sensiblement une forme de bague à paroi interne taraudée.
  • le corps de capotage est surmoulé autour de l'insert taraudé.
  • l'insert comprend un matériau de type Zamac.
  • le corps de capotage est en un polymère de type polyamide.
  • le corps de capotage est composé d'une partie de base englobant au moins partiellement l'insert, ladite partie de base étant surmontée d'un arceau de protection.
  • le corps de capotage comporte un pommeau de manipulation, de préférence le pommeau est porté par l'arceau de protection, de préférence le pommeau incorpore une puce électronique, par exemple une puce électronique de lecture à distance électromagnétique.
Depending on the case, the rollover according to the invention may include one or more of the following characteristics:
  • the insert has substantially a form of ring with internal threaded wall.
  • the cover body is molded around the threaded insert.
  • the insert comprises a Zamac type material.
  • the cover body is made of a polyamide-type polymer.
  • the cover body is composed of a base part at least partially including the insert, said base part being surmounted by a protective arch.
  • the cowling body comprises a handling knob, preferably the knob is carried by the protective roll bar, preferably the knob incorporates an electronic chip, for example an electronic chip for electromagnetic remote reading.

Selon un autre aspect, l'invention concerne aussi un récipient de fluide, en particulier une bouteille de gaz, équipé d'un bloc robinet ou d'un ensemble robinet/détendeur et portant, en outre, un capotage de protection selon l'invention.According to another aspect, the invention also relates to a fluid container, in particular a gas cylinder, equipped with a valve block or a valve / regulator assembly and bearing, in addition, a protective cover according to the invention .

De plus, l'invention concerne aussi un procédé de fabrication d'un capotage de protection selon l'invention, dans lequel :

  • a) on place un insert en métal ou en alliage métallique, de préférence taraudé, autour d'un noyau de moule;
  • b) on positionne le moule autour du noyau de moule portant l'insert,
  • c) on introduit les constituants du matériau polymère à l'intérieur du moule,
  • d) on démoule le capotage et on retire le noyau de moule dudit capotage, après polymérisation.
In addition, the invention also relates to a method of manufacturing a protective covering according to the invention, in which:
  • a) placing a metal or metal alloy insert, preferably tapped, around a mold core;
  • b) the mold is positioned around the mold core carrying the insert,
  • c) the constituents of the polymeric material are introduced inside the mold,
  • d) the cover is removed from the mold and the mold core is removed from said cover after polymerization.

De préférence, l'insert est fabriqué par moulage d'un alliage métallique et taraudage subséquent de sa paroi interne.Preferably, the insert is produced by molding a metal alloy and subsequent tapping of its internal wall.

L'invention va être mieux comprise grâce aux figures annexées, données à titre illustratif mais non limitatif.The invention will be better understood from the appended figures, given by way of illustration but not limitation.

La figure 1 schématise différentes formes possibles de capotage de protection de type ouvert, que l'on rencontre classiquement dans l'art antérieur. Ceux-ci sont habituellement formés d'une structure unique en un alliage métallique.Figure 1 shows schematically different possible forms of protective cover of the open type, which are conventionally encountered in the prior art. These are usually formed from a single structure of a metal alloy.

Les figures 2 et 3 représente, quant à elles, deux modes de réalisation de capotages 1 selon l'invention.Figures 2 and 3 shows, in turn, two embodiments of cowlings 1 according to the invention.

Les capotages des figures 2 et 3 sont constitués chacun d'un corps 1 de capotage muni, à sa base 4, d'un insert 2 métallique.The cowlings of FIGS. 2 and 3 each consist of a cowling body 1 provided, at its base 4, with a metal insert 2.

Plus précisément, l'insert 2 est constitué d'un alliage métallique moulé, par exemple du Zamac 5, et destiné à assurer la liaison entre la collerette de la bouteille et la forme polymère.More specifically, the insert 2 consists of a molded metal alloy, for example Zamac 5, and intended to ensure the connection between the flange of the bottle and the polymer form.

Ses cotes de taraudage sont fonction des cotes et tolérances de la collerette de la bouteille, ainsi que du retrait généré par la forme polymère au moment du durcissement du chapeau (compression de l'insert).Its tapping dimensions are a function of the dimensions and tolerances of the flange of the bottle, as well as of the shrinkage generated by the polymer form when the cap hardens (compression of the insert).

Pour assurer la rigidité en partie basse 4 du chapeau, l'insert 2 comporte des renforts 6 nervurés. Des évidements 7 permettent, par ailleurs, une bonne liaison entre l'insert 2 et la matière plastique, ainsi qu'un bon écoulement au moment du moulage.To ensure the rigidity in the lower part 4 of the cap, the insert 2 has ribbed reinforcements 6. Recesses 7 allow, moreover, a good connection between the insert 2 and the plastic, as well as good flow at the time of molding.

Des passages 11 de vis sont prévus pour une fixation et un blocage efficaces du chapeau sur la bouteille de gaz.Screw passages 11 are provided for effective fixing and blocking of the cap on the gas bottle.

En outre, le corps 1 en polymère est constitué de polyamide 6 modifié choc, par exemple en Grilon ™.In addition, the polymer body 1 is made of impact-modified polyamide 6, for example of Grilon ™.

La forme du chapeau, alliée aux caractéristiques de ce polymère, résout les problèmes techniques de rigidité / absorption cités plus haut.The shape of the hat, combined with the characteristics of this polymer, solves the technical problems of rigidity / absorption mentioned above.

Le corps est surmonté d'un pommeau 3 servant à la manutention et pouvant contenir une puce électronique (non représentée). En effet, la matière plastique du capotage rend la lecture magnétique de la puce plus facile et efficace que dans le cas d'un capotage en métal.The body is surmounted by a knob 3 used for handling and which may contain an electronic chip (not shown). Indeed, the plastic material of the cover makes the magnetic reading of the chip easier and efficient than in the case of a metal cover.

De préférence, les chapeaux sont fabriqués comme expliqués ci-après.Preferably, the hats are made as explained below.

Les inserts sont préalablement moulés et taraudés.The inserts are pre-molded and tapped.

Ensuite, on réalise un surmoulage qui consiste à placer l'insert sur un porte insert autour du noyau du moule polymère. Les deux empreintes du moule se referment, l'étanchéité est assurée entre les empreintes, le noyau et l'insert lui même.Then, an overmolding is carried out which consists in placing the insert on an insert holder around the core of the polymer mold. The two mold cavities close, sealing is ensured between the cavities, the core and the insert itself.

La matière polymère est alors injectée et polymérisé dans le moule.The polymeric material is then injected and polymerized in the mold.

Après polymérisation, on démoule le chapeau et on procède aux finitions, par exemple à une élimination des bavures.After polymerization, the cap is removed from the mold and the finishing touches are carried out, for example removing burrs.

Un chapeau de protection selon l'invention peut être utilisé pour protéger les organes fragiles, notamment des robinets, détendeurs et/ou manomètres, des bouteilles de gaz destinées à tout domaine d'activité, en particulier au domaine du soudage, de l'électronique, de l'agroalimentaire et de la santé.A protective cap according to the invention can be used to protect fragile organs, in particular taps, regulators and / or pressure gauges, gas cylinders intended for any field of activity, in particular in the field of welding, electronics. , food and health.

Claims (9)

  1. Protective cowling for a fluid container, particularly for a gas cylinder, made up of a cowling body (1) made of polymer comprising an insert (2) made of metal or metal alloy with a tapping (10) characterized in that the insert (2) has one or more recesses (7) and a plurality of strengtheners (6) on its external peripheral wall, or a plurality of strengtheners (6) on its external peripheral wall.
  2. Cowling according to Claim 1, characterized in that the insert (2) is essentially in the shape of a ring with a tapped internal wall.
  3. Cowling according to Claim 1 or 2, characterized in that the cowling body (1) is overmoulded around the tapped insert (2).
  4. Cowling according to Claims 1 to 3, characterized in that the insert (2) comprises a material of the Zamac type.
  5. Cowling according to Claims 1 to 4, characterized in that the cowling body is made of a polymer of the polyamide type.
  6. Cowling according to Claims 1 to 5, characterized in that the cowling body (1) is made up of a base part (4) at least partially encompassing the insert (2), the said base part (4) being surmounted by a protective hoop (5).
  7. Cowling according to Claims 1 to 6, characterized in that the cowling body (1) has a handling pommel (3), the pommel (3) is preferably borne by the protective hoop (5), and the pommel preferably incorporates an electronic chip.
  8. Fluid container, particularly a gas cylinder, equipped with a valve unit or a valve/pressure reducer assembly and also bearing a protective cowling according to one of Claims 1 to 7.
  9. Method for manufacturing a protective cowling according to Claims 1 to 7, in which:
    a) an insert (2) made of metal or of metal alloy, preferably tapped, is placed around a mould insert;
    b) the mould is positioned around the mould insert bearing the insert (2),
    c) the constituents of the polymer material are introduced into the mould,
    d) the cowling is released from the mould and the mould insert is withdrawn from the said cowling, after curing.
EP00400537A 1999-04-01 2000-02-29 Composite open cap for large industrial and medical gas bottles Expired - Lifetime EP1041339B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9904090A FR2791757B1 (en) 1999-04-01 1999-04-01 COMPOSITE OPEN HAT FROM LARGE INDUSTRIAL AND MEDICAL GAS BOTTLES
FR9904090 1999-04-01

Publications (3)

Publication Number Publication Date
EP1041339A1 EP1041339A1 (en) 2000-10-04
EP1041339B1 EP1041339B1 (en) 2002-05-02
EP1041339B2 true EP1041339B2 (en) 2004-12-29

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Application Number Title Priority Date Filing Date
EP00400537A Expired - Lifetime EP1041339B2 (en) 1999-04-01 2000-02-29 Composite open cap for large industrial and medical gas bottles

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US (1) US6311722B1 (en)
EP (1) EP1041339B2 (en)
JP (1) JP4611485B2 (en)
CN (1) CN1117944C (en)
AR (1) AR023257A1 (en)
AT (1) ATE217065T1 (en)
AU (1) AU752535B2 (en)
BR (1) BR0001513A (en)
CA (1) CA2300501C (en)
DE (1) DE60000143T3 (en)
DK (1) DK1041339T4 (en)
ES (1) ES2176155T5 (en)
FR (1) FR2791757B1 (en)
PT (1) PT1041339E (en)
ZA (1) ZA200001307B (en)

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EP3805627A1 (en) 2014-07-29 2021-04-14 Messer GasPack GmbH Protection device for pressurized gas containers

Also Published As

Publication number Publication date
CA2300501C (en) 2008-01-29
JP4611485B2 (en) 2011-01-12
AU2265700A (en) 2000-10-05
DK1041339T4 (en) 2005-04-11
ZA200001307B (en) 2000-10-20
ES2176155T5 (en) 2005-07-01
CN1269483A (en) 2000-10-11
DE60000143T2 (en) 2002-10-31
BR0001513A (en) 2000-10-10
AR023257A1 (en) 2002-09-04
FR2791757B1 (en) 2001-06-15
PT1041339E (en) 2002-09-30
CA2300501A1 (en) 2000-10-01
ATE217065T1 (en) 2002-05-15
DK1041339T3 (en) 2002-07-08
CN1117944C (en) 2003-08-13
FR2791757A1 (en) 2000-10-06
ES2176155T3 (en) 2002-12-01
JP2000304197A (en) 2000-11-02
EP1041339B1 (en) 2002-05-02
EP1041339A1 (en) 2000-10-04
US6311722B1 (en) 2001-11-06
DE60000143T3 (en) 2005-08-11
AU752535B2 (en) 2002-09-19
DE60000143D1 (en) 2002-06-06

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