EP0390711A1 - Pressurised fluid container - Google Patents

Pressurised fluid container Download PDF

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Publication number
EP0390711A1
EP0390711A1 EP90420149A EP90420149A EP0390711A1 EP 0390711 A1 EP0390711 A1 EP 0390711A1 EP 90420149 A EP90420149 A EP 90420149A EP 90420149 A EP90420149 A EP 90420149A EP 0390711 A1 EP0390711 A1 EP 0390711A1
Authority
EP
European Patent Office
Prior art keywords
height
pressure
valve
circular opening
cartridge
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
EP90420149A
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German (de)
French (fr)
Other versions
EP0390711B1 (en
Inventor
Gérard Scremin
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Application des Gaz SA
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Application des Gaz SA
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/38—Details of the container body
    • 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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • 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
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
    • 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
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0114—Shape cylindrical with interiorly curved end-piece
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • 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
    • F17C2205/0305—Bosses, e.g. boss collars
    • 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
    • F17C2205/0311—Closure means
    • F17C2205/032—Closure means pierceable
    • 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
    • F17C2205/0323—Valves
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/224—Press-fitting; Shrink-fitting
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/05—Improving chemical properties
    • F17C2260/053—Reducing corrosion
    • 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
    • F17C2270/07—Applications for household use
    • F17C2270/0709—Camping gas

Definitions

  • the present invention relates to a box for pressurized fluid, of the lost or disposable packaging type, generally obtained by cutting and stamping relatively thin steel sheets, protected against corrosion and oxidation, for example by a coating of tin or other.
  • fluid under pressure any body or mixture of bodies, in the liquid and / or gaseous state, and under pressure.
  • a liquefied petroleum gas in the pure state or as a mixture, such as commercial butane, having two liquid and gaseous phases, under a pressure higher than the atmospheric pressure, and equal to the vapor pressure of the liquefied gas.
  • these boxes have a metallic body with a cylindrical wall for the most part, having at its lower end a circular opening, as well as a concave or domed bottom, metallic, having in diametral section passing through the axis of the body the shape of a vault, and closing the aforementioned circular opening.
  • the bottom is securely joined to the body by an annular connecting bead, for example an outer bead, connecting, on the one hand the edge of the body delimiting the circular opening, and on the other hand the right foot of the concave bottom covering the right edge of the same body.
  • a valve for withdrawing fluid under pressure in particular of the aerosol type; this valve generally comprises a cup with rim crimped on the peripheral external bead of the axial opening.
  • the invention also relates to the gas boxes defined above, completely closed, and filled with the pressurized fluid.
  • FIG. 1 showing in simplified manner and in axial section, a valve cartridge containing commercial butane under pressure.
  • this cartridge comprises: - a metal body (4) with a cylindrical wall (4a) having at its lower end a circular opening (4b), and at its opposite upper end, in continuity with the wall (4a), a convex closing dome (4c); the latter has an axial opening (4d) with annular and external bead (4e); - a sampling valve (5), with cup (6) crimped on the bead (4e), closing the opening (4d);
  • this valve of the "female” type for example, comprises a valve (50) constituting the valve itself; - a concave bottom (7), metallic closing the circular opening (4b) of the body (4); - A crimp (8) bringing together the wall of the body (4) and that of the bottom (7), joining and connecting these two components in a sealed manner, in the form of a common and external annular bead.
  • the structure of the setting is presented as follows: - the bottom (7) generally affects the shape of a vault; -
  • the edge of the body (4) delimiting the circular opening (4b) is shaped like an anchor hook (4f) facing outwards, and comprising two branches, namely a straight edge (4g respectively) ) and an outer rim (4h) parallel to the cylindrical wall (4a) of the body; these two branches are separated by a curved part (4i) the concave bottom (7) successively has, from the inside towards the outside of the box, a circular internal arc (7a) symmetrical with respect to the axis (9) of the body, an internal right foot (7b), covering the right edge (4g) of the body (4), and an outer hook (7c) turned over and engaged in the anchoring hook (4f) of the circular edge of the body (4); this hook
  • the cartridges described above In the case of thin-walled containers, and having a charge under flammable pressure, the cartridges described above must be safe, and in particular withstand pressure. It is in particular for this reason that a concave bottom is retained, having good intrinsic mechanical resistance to pressure, while being liable to turn over under the effect of higher pressure, in a convex conformation increasing the cartridge volume.
  • the first relates to the pressure of the first permanent (therefore irreversible or final) and visible deformation; this threshold is also called test pressure.
  • this pressure threshold all or part of the cartridge (body essentially bottom) undergoes non-elastic deformation, increasing the internal volume of the cartridge, but not altering its overall tightness. After this pressure threshold, the same deformation continues or other deformations appear, until "exhaustion" of all local or global possibilities of deformation of the cartridge, but always preserving the sealing of the latter.
  • the second threshold relates to the burst pressure of the cartridge, at which the latter loses its tightness and therefore leaks.
  • test and burst pressures of a cartridge the better the safety of storage, transport and use of such a cartridge.
  • these are also the technical principles adopted in different countries, by the regulations respectively applicable in terms of security for these lost packaging, since generally for these countries: - the test pressure (Pep) must be at least equal to the vapor pressure of the gas at a temperature T, multiplied by a coefficient x; - the burst pressure (Pec) must be at least equal to this same vapor pressure, multiplied by a coefficient y; - x is between 1.5 and 1.55, and y is between 1.8 and 1.9; - the temperature T used is between 50 ° C and 55 ° C.
  • the hydraulic pressure is increased inside a cartridge as shown in FIGS. 1 and 2, and both the evolution of the internal pressure is observed over time. , and the deformations of the seam (8) and / or of the concave bottom (7).
  • the crimp (8) has the shape shown in exploded form in FIG. 2.
  • the pressure increases rapidly to point A, corresponding to the test pressure (Pep).
  • the test pressure (Pep).
  • the test pressure thus determined is greater than x times the vapor pressure of commercial butane at temperature T, for example 3.1 bars, according to the applicable regulations.
  • phase 2 the pressure first decreases abruptly, then oscillates according to new local or global deformations of the wall of the cartridge, passing through the complete reversal of the bottom (8) according to the figure (3e).
  • the internal pressure increases again towards point B, corresponding to the bursting pressure of the cartridge, by unwinding and dissociation of the setting (8) according to the figure (3f).
  • the burst pressure thus determined is greater than y times the vapor pressure of commercial butane at temperature T, for example 2.8 bars, according to the applicable regulations.
  • This superiority can orient the excess pressure in the cartridge preferentially towards the bursting of the latter, in certain marginal cases, for example when the bottom has a certain resistance to overturning.
  • the present invention sought what were the means of ensuring the superiority of the burst pressure of the cartridge, namely (Pec), compared to the pressure d '' test of the latter, namely (Pep), and so as to ensure and secure the chronology described with reference to Figure 3, that is to say a burst always following one or more sealed deformations of the cartridge .
  • a first way of solving the problem thus posed consisted in considering that if the test pressure exceeded the burst pressure, it was because the concave bottom presented too strong resistance to overturning. We therefore sought to weaken the concave bottom, so as to improve its outward deformability.
  • a first solution consisting in using a relatively soft steel sheet must be discarded, since the bottom then turns over too soon.
  • a second solution consisting in using a relatively thinner sheet must also be ruled out, since crimping involves the use of sheets of minimum thickness.
  • a third solution consisting in reducing the concavity, that is to say increasing the radius of curvature of the bottom must also be ruled out, because it decreases or eliminates the possibility of stacking the cartridges on top of each other on the one hand , and it limits or even cancels the increase in the volume of safety provided by the reversal of the concave bottom, on the other hand.
  • the present invention considered another way of resolution, in itself inventive, and which could be formulated in the following manner. If the burst pressure remains lower than the test pressure, it is because, in accordance with FIG. 2, the right foot (7b) of the arch (7) of the concave bottom, yields or slides too easily by relative to the right edge (4g) of the body (4). This sliding is further favored by the clearing path of current stamping tools, letting the internal pressure act in the manner of a "wedge" between the portions (4g) and (7b).
  • the invention sought all means making it possible to reduce or hinder the possibilities of sliding of the bottom relative to the cylindrical body of the gas box.
  • the solution according to the invention takes the form of an overlap zone extending in height from a lower level situated at the base of the seam (8) to an upper level situated above the latter.
  • the height of the overlap area being expressed by the ratio between (see FIG. 4) the internal height (c) of the right foot (7b) and the external height (s) of the setting, it was determined that this ratio should be at least equal to obtain the desired result. Below this value, one obtains, in fact, a great proximity between the test and burst pressures, or the inferiority of the second compared to the first.
  • a hydraulic test graph is obtained having the following characteristics: - the pressure Pec is actually higher than the pressure Pep, - the sealed deformation of the bottom mainly concerns the arch (7a) of the bottom, excluding the seam (8); cf. Figure 5c; - bursting occurs after this complete deformation; cf. figure 5d.
  • the invention also provides the following determining advantages.
  • the test or first visible deformation pressure remains relatively unchanged.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Float Valves (AREA)
  • Safety Valves (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)

Abstract

Container, of the valve-cartridge or perforable-cartridge type. According to the invention, the height of overlap between the straight wall (7b) of the concave base (7) and the straight edge (4g) of the cylindrical body (4), expressed as the ratio between the internal height (c) of said straight wall and the external height (s) of the annular crimp (8) is at least equal to 1.7. <IMAGE>

Description

La présente invention concerne une boîte pour fluide sous pression, du type emballage perdu ou jetable, obtenue généralement par découpe et emboutissage de tôles d'acier relativement minces, protégées contre la corrosion et l'oxydation, par exemple par un revêtement d'étain ou autre.The present invention relates to a box for pressurized fluid, of the lost or disposable packaging type, generally obtained by cutting and stamping relatively thin steel sheets, protected against corrosion and oxidation, for example by a coating of tin or other.

Par "fluide sous pression", on entend tout corps ou mélange de corps, à l'état liquide et/ou gazeux, et sous pression. Au rang de ces fluides, et à titre d'exemple, on peut citer un gaz de pétrole liquéfié, à l'état pur ou en mélange, tel que du butane commercial, présentant deux phases liquide et gazeuse, sous une pression supérieure à la pression atmosphérique, et égale à la tension de vapeur du gaz liquéfié.By "fluid under pressure" is meant any body or mixture of bodies, in the liquid and / or gaseous state, and under pressure. Among these fluids, and by way of example, there may be mentioned a liquefied petroleum gas, in the pure state or as a mixture, such as commercial butane, having two liquid and gaseous phases, under a pressure higher than the atmospheric pressure, and equal to the vapor pressure of the liquefied gas.

De manière générale, ces boîtes présentent un corps métallique à paroi cylindrique pour l'essentiel, présentant à son extrémité inférieure une ouverture circulaire, ainsi qu'un fond concave ou bombé, métallique, présentant en section diamétrale passant par l'axe du corps la forme d'une voûte, et fermant l'ouverture circulaire précitée. Le fond est solidarisé de manière étanche au corps par un cordon annulaire de liaison, par exemple un bourrelet extérieur, reliant, d'une part la bordure du corps délimitant l'ouverture circulaire, et d'autre part le pied droit du fond concave recou­vrant le bord droit du même corps.Generally, these boxes have a metallic body with a cylindrical wall for the most part, having at its lower end a circular opening, as well as a concave or domed bottom, metallic, having in diametral section passing through the axis of the body the shape of a vault, and closing the aforementioned circular opening. The bottom is securely joined to the body by an annular connecting bead, for example an outer bead, connecting, on the one hand the edge of the body delimiting the circular opening, and on the other hand the right foot of the concave bottom covering the right edge of the same body.

A partir de cette définition générale, on peut ensuite distinguer :
- les cartouches perforables pour lesquelles la partie du corps cylindrique opposée à l'ouverture circulaire est complétement fermée, sous la forme d'un dôme convexe, en continuité avec la paroi cylindrique ; et le dôme supérieur convexe comporte en son centre une zone destinée à la perforation, prenant par exemple la forme d'un cupule sphérique en creux, pour coopérer de manière rigide et étanche avec un perforateur, appartenant à un appareil d'utilisation, par exemple un réchaud de cuisson.
- les cartouches à valve, pour lesquelles la partie du corps opposée a l'ouverture circulaire est fermée sous la forme d'un dôme convexe, en continuité avec la paroi cylindrique ; mais le dôme supérieur convexe com­porte en son centre une ouverture axiale circulaire avec un bourrelet exté­rieur périphérique, fermée ou destinée à être fermée de manière étanche par une valve de prélèvement de fluide sous pression, notamment du type aérosol ; cette valve comporte en général une coupelle avec rebord serti sur le bourrelet extérieur périphérique de l'ouverture axiale.From this general definition, we can then distinguish:
- perforable cartridges for which the part of the cylindrical body opposite the circular opening is completely closed, in the form of a convex dome, in continuity with the cylindrical wall; and the convex upper dome has in its center an area intended for perforation, taking for example the shape of a hollow spherical cup, to cooperate rigidly and tightly with a perforator, belonging to a device for use, for example a cooking stove.
- valve cartridges, for which the part of the body opposite the circular opening is closed in the form of a convex dome, in continuity with the cylindrical wall; but the convex upper dome has in its center a circular axial opening with a peripheral external bead, closed or intended to be closed in leaktight manner by a valve for withdrawing fluid under pressure, in particular of the aerosol type; this valve generally comprises a cup with rim crimped on the peripheral external bead of the axial opening.

Tous ces récipients ou contenants sont bien connus par l'homme de métier, par exemple sous forme de cartouches dites aérosol. Ils peuvent être remplis de différentes manières, selon les machines ou équipements utilisés, par exemple :
- par l'ouverture circulaire du corps cylindrique disposé "tête en bas", avec sertissage postérieur du fond concave,
- par l'ouverture axiale du corps, pour les cartouches à valve, avec sertissage postérieur de la valve.All these containers or containers are well known to those skilled in the art, for example in the form of so-called aerosol cartridges. They can be filled in different ways, depending on the machines or equipment used, for example:
- by the circular opening of the cylindrical body arranged "upside down", with posterior crimping of the concave bottom,
- by the axial opening of the body, for valve cartridges, with posterior crimping of the valve.

Bien entendu, l'invention concerne également les boîtes à gaz définies précédemment, complétement fermées, et remplies avec le fluide sous pression.Of course, the invention also relates to the gas boxes defined above, completely closed, and filled with the pressurized fluid.

A titre d'exemple non limitatif, mais représentatif de l'art anté­rieur, on se référera à la figure 1, représentant de manière simplifiée et en coupe axiale, une cartouche à valve contenant du butane commercial sous pression.By way of nonlimiting example, but representative of the prior art, reference will be made to FIG. 1, showing in simplified manner and in axial section, a valve cartridge containing commercial butane under pressure.

Comme déjà indiqué, outre la charge 1 de butane liquide déter­minant un interface 2 entre ladite charge et le ciel gazeux 3, cette cartou­che comporte :
- un corps métallique (4) à paroi cylindrique (4a) présentant à son extrémité inférieure une ouverture circulaire (4b), et à son extrémité supérieure opposée, en continuité avec la paroi (4a), un dôme convexe (4c) de fermeture ; ce dernier comporte une ouverture axiale (4d) avec bourrelet (4e) annulaire et extérieur ;
- une valve de prélèvement (5), avec coupelle (6) sertie sur le bourrelet (4e), fermant l'ouverture (4d) ; cette valve, du type "femelle" par exemple, comporte un clapet (50) constituant la valve proprement dite ;
- un fond concave (7), métallique fermant l'ouverture circulaire (4b) du corps (4) ;
- un serti (8) rassemblant et la paroi du corps (4) et celle du fond (7), solidarisant et reliant ces deux composants de manière étanche, sous la forme d'un bourrelet annulaire commun et extérieur.As already indicated, in addition to the charge 1 of liquid butane determining an interface 2 between said charge and the overhead gas 3, this cartridge comprises:
- a metal body (4) with a cylindrical wall (4a) having at its lower end a circular opening (4b), and at its opposite upper end, in continuity with the wall (4a), a convex closing dome (4c); the latter has an axial opening (4d) with annular and external bead (4e);
- a sampling valve (5), with cup (6) crimped on the bead (4e), closing the opening (4d); this valve, of the "female" type for example, comprises a valve (50) constituting the valve itself;
- a concave bottom (7), metallic closing the circular opening (4b) of the body (4);
- A crimp (8) bringing together the wall of the body (4) and that of the bottom (7), joining and connecting these two components in a sealed manner, in the form of a common and external annular bead.

Par référence à la figure 2, représentant de manière simplifiée et éclatée à grande échelle, et en coupe diamétrale, à la fois le serti et les parties adjacentes du corps (4) et du fond (7), la structure du serti se présente comme suit :
- le fond (7) affecte de manière générale la forme d'une voûte ;
- la bordure du corps (4) délimitant l'ouverture circulaire (4b) est conformée à la manière d'un crochet d'ancrage (4f) tourné vers l'exté­rieur, et comprenant deux branches, à savoir respectivement un bord droit (4g) et un rebord extérieur (4h) parallèle à la paroi cylindrique (4a) du corps ; ces deux branches sont séparées par une partie courbe (4i)
- le fond concave (7) présente successivement, de l'intérieur vers l'extérieur de la boîte, un arc intérieur circulaire (7a) symétrique par rapport à l'axe (9) du corps, un pied droit (7b) intérieur, recouvrant le bord droit (4g) du corps (4), et un crochet extérieur (7c) retourné et engagé dans le crochet d'ancrage (4f) de la bordure circulaire du corps (4) ; ce crochet (7c) est relié au pied droit par une partie courbe (7d) homologue de la partie courbe (4i) ; ce crochet (7c) ayant la forme d'une épingle à cheveux comporte deux branches droites, parallèles au rebord extérieur (4h), l'une (7e) extérieure au crochet (4f) et l'autre (7f) intérieure à ce dernier ; ces deux branches (7e) et (7f) sont reliées par une partie courbe (7g).With reference to FIG. 2, in a simplified and exploded view on a large scale, and in diametral section, showing both the setting and the adjacent parts of the body (4) and of the bottom (7), the structure of the setting is presented as follows:
- the bottom (7) generally affects the shape of a vault;
- The edge of the body (4) delimiting the circular opening (4b) is shaped like an anchor hook (4f) facing outwards, and comprising two branches, namely a straight edge (4g respectively) ) and an outer rim (4h) parallel to the cylindrical wall (4a) of the body; these two branches are separated by a curved part (4i)
the concave bottom (7) successively has, from the inside towards the outside of the box, a circular internal arc (7a) symmetrical with respect to the axis (9) of the body, an internal right foot (7b), covering the right edge (4g) of the body (4), and an outer hook (7c) turned over and engaged in the anchoring hook (4f) of the circular edge of the body (4); this hook (7c) is connected to the right foot by a curved part (7d) homologous to the curved part (4i); this hook (7c) having the shape of a hairpin has two straight branches, parallel to the outer rim (4h), one (7th) outside the hook (4f) and the other (7f) inside the latter ; these two branches (7e) and (7f) are connected by a curved part (7g).

S'agissant de récipients à paroi mince, et comportant une charge sous pression inflammable, les cartouches décrites précédemment doivent être sûres, et en particulier résister à la pression. C'est notamment pour cette raison que l'on retient un fond concave, ayant une bonne résistance mécanique intrinsèque à la pression, tout en étant susceptible de se retourner sous l'effet d'une pression plus élevée, dans une conformation convexe augmentant le volume de la cartouche.In the case of thin-walled containers, and having a charge under flammable pressure, the cartridges described above must be safe, and in particular withstand pressure. It is in particular for this reason that a concave bottom is retained, having good intrinsic mechanical resistance to pressure, while being liable to turn over under the effect of higher pressure, in a convex conformation increasing the cartridge volume.

A cet égard, et sous l'effet d'une pression interne croissante, on peut distinguer et caractériser une telle cartouche par deux seuils de pression.In this regard, and under the effect of increasing internal pressure, one can distinguish and characterize such a cartridge by two pressure thresholds.

Le premier est relatif à la pression de première déformation per­manente (donc irréversible ou définitive) et visible ; ce seuil est encore appelé pression d'épreuve. A ce seuil de pression, tout ou partie de la cartouche (corps plus fond essentiellement) subit une déformation non élas­tique, augmentant le volume interne de la cartouche, mais n'altérant pas son étanchéité globale. Passé ce seuil de pression, la même déformation se poursuit ou d'autres déformations apparaissent, jusqu'à "épuisement" de toutes les possibilités locales ou globales de déformation de la cartou­che, mais toujours en préservant l'étanchéité de cette dernière.The first relates to the pressure of the first permanent (therefore irreversible or final) and visible deformation; this threshold is also called test pressure. At this pressure threshold, all or part of the cartridge (body essentially bottom) undergoes non-elastic deformation, increasing the internal volume of the cartridge, but not altering its overall tightness. After this pressure threshold, the same deformation continues or other deformations appear, until "exhaustion" of all local or global possibilities of deformation of the cartridge, but always preserving the sealing of the latter.

Le second seuil est relatif à la pression d'éclatement de la cartou­che, à laquelle cette dernière perd son étanchéité et donc fuit.The second threshold relates to the burst pressure of the cartridge, at which the latter loses its tightness and therefore leaks.

Plus les pressions d'épreuve et d'éclatement d'une cartouche sont élevées, meilleure est la sécurité de stockage, de transport, et d'utilisation d'une telle cartouche. Tels sont également les principes techniques retenus dans différents pays, par les règlementations respectivement applicables en matière de sécurité à ces emballages perdus, puisque de manière générale pour lesdits pays :
- la pression d'épreuve (Pep) doit être au moins égale à la tension de vapeur du gaz à une température T, multipliée par un coefficient x ;
- la pression d'éclatement (Pec) doit être au moins égale à cette même tension de vapeur, multipliée par un coefficient y ;
- x est compris entre 1,5 et 1, 55, et y est compris entre 1,8 et 1,9 ;
- la température T retenue est comprise entre 50° C et 55° C.The higher the test and burst pressures of a cartridge the better the safety of storage, transport and use of such a cartridge. These are also the technical principles adopted in different countries, by the regulations respectively applicable in terms of security for these lost packaging, since generally for these countries:
- the test pressure (Pep) must be at least equal to the vapor pressure of the gas at a temperature T, multiplied by a coefficient x;
- the burst pressure (Pec) must be at least equal to this same vapor pressure, multiplied by a coefficient y;
- x is between 1.5 and 1.55, and y is between 1.8 and 1.9;
- the temperature T used is between 50 ° C and 55 ° C.

Ceci étant, par référence à la figure 3, éclatée en six figures partielles (3e à 3f), la Demanderesse a établi qu'une cartouche telle que décrite par référence aux figures 1 et 2 pouvait être parfaitement conforme aux règlementations applicables en matière de sécurité, tout en montrant les caractéristiques secondaires explicitées ci-après.This being so, with reference to FIG. 3, broken down into six partial figures (3e to 3f), the Applicant has established that a cartridge as described with reference to FIGS. 1 and 2 could perfectly comply with the regulations applicable in terms of safety , while showing the secondary characteristics explained below.

Selon le graphe d'épreuve hydraulique de la figure 3a, on augmente la pression hydraulique à l'intérieur d'une cartouche telle que représentée aux figures 1 et 2, et on observe à la fois l'évolution dans le temps de la pression interne, et les déformations du serti (8) et/ou du fond concave (7).According to the hydraulic test graph in FIG. 3a, the hydraulic pressure is increased inside a cartridge as shown in FIGS. 1 and 2, and both the evolution of the internal pressure is observed over time. , and the deformations of the seam (8) and / or of the concave bottom (7).

Au départ, selon la figure 3b, le serti (8) a la forme représentée de manière éclatée à la figure 2.At the start, according to FIG. 3b, the crimp (8) has the shape shown in exploded form in FIG. 2.

Pendant la phase 1, la pression augmente rapidement jusqu'au point A, correspondant à la pression d'épreuve (Pep). A cette pression, on constate une première déformation locale, et en tout cas dissymétrique, consistant soit en un glissement du pied droit (7b) du fond (7) par rapport au bord droit (4g) du corps, selon la figure 3c, soit en un bossage convexe apparaissant dans la partie en arc (7a) de la voûte (7), selon la figure 3d. La pression d'épreuve ainsi déterminée est supérieure à x fois la pression de vapeur du butane commercial à la température T, par exemple 3, 1 bars, selon la règlementation applicable.During phase 1, the pressure increases rapidly to point A, corresponding to the test pressure (Pep). At this pressure, there is a first local deformation, and in any case asymmetrical, consisting either of a sliding of the right foot (7b) of the bottom (7) relative to the right edge (4g) of the body, according to FIG. 3c, or in a convex boss appearing in the arc part (7a) of the arch (7), according to FIG. 3d. The test pressure thus determined is greater than x times the vapor pressure of commercial butane at temperature T, for example 3.1 bars, according to the applicable regulations.

Pendant la phase 2, la pression diminue tout d'abord brutalement, puis oscille au gré des nouvelles déformations locales ou globales de la paroi de la cartouche, en passant par le retournement complet du fond (8) selon la figure (3e). A la fin de la phase 2, toutes les possibilités de déformation locale ayant été "épuisées", la pression interne augmente à nouveau vers le point B, correspondant à la pression d' éclatement de la cartouche, par déroulement et dissociation du serti (8) selon la figure (3f). La pression d'éclatement ainsi déterminée est supérieure à y fois la pression de vapeur du butane commercial à la température T, par exemple 2,8 bars, selon la règlementation applicable.During phase 2, the pressure first decreases abruptly, then oscillates according to new local or global deformations of the wall of the cartridge, passing through the complete reversal of the bottom (8) according to the figure (3e). At the end of phase 2, all the possibilities of local deformation having been "exhausted", the internal pressure increases again towards point B, corresponding to the bursting pressure of the cartridge, by unwinding and dissociation of the setting (8) according to the figure (3f). The burst pressure thus determined is greater than y times the vapor pressure of commercial butane at temperature T, for example 2.8 bars, according to the applicable regulations.

Selon le descriptif expérimental précédent, on observe que tout en satisfaisant la règlementation en vigueur, et en manifestant diverses déformations avant d'éclater, la pression d'épreuve (Pep) est supérieure à la pression d'éclatement (Pec).According to the previous experimental description, it is observed that while satisfying the regulations in force, and manifesting various deformations before bursting, the test pressure (Pep) is greater than the bursting pressure (Pec).

Cette supériorité peut orienter l'excès de pression dans la cartou­che préférentiellement vers l'éclatement de cette dernière, dans certains cas marginaux, par exemple lorsque le fond présente une certaine résis­tance au retournement.This superiority can orient the excess pressure in the cartridge preferentially towards the bursting of the latter, in certain marginal cases, for example when the bottom has a certain resistance to overturning.

Soucieuse de dépasser le seuil de sécurité prévu par les règlemen­tations en vigueur, la présente invention a recherché quels étaient les moyens d'assurer la supériorité de la pression d'éclatement de la cartou­che, à savoir (Pec), par rapport à la pression d'épreuve de cette dernière, à savoir (Pep), et ce de manière à assurer et sécuriser la chronologie décri­te par référence à la figure 3, c'est-à-dire un éclatement succédant toujours à une ou plusieurs déformations étanches de la cartouche.Anxious to exceed the safety threshold provided by the regulations in force, the present invention sought what were the means of ensuring the superiority of the burst pressure of the cartridge, namely (Pec), compared to the pressure d '' test of the latter, namely (Pep), and so as to ensure and secure the chronology described with reference to Figure 3, that is to say a burst always following one or more sealed deformations of the cartridge .

Une première voie de résolution du problème ainsi posé a consisté à considérer que si la pression d'épreuve excédait la pression d'éclatement, c'était parce que le fond concave présentait une trop forte résistance au retournement. On a donc cherché à affaiblir le fond concave, de maniè­re à améliorer sa déformabilité vers l'extérieur.A first way of solving the problem thus posed consisted in considering that if the test pressure exceeded the burst pressure, it was because the concave bottom presented too strong resistance to overturning. We therefore sought to weaken the concave bottom, so as to improve its outward deformability.

Une première solution consistant à utiliser une tôle en acier relati­vement mou doit être écartée, car le fond se retourne alors beaucoup trop tôt.A first solution consisting in using a relatively soft steel sheet must be discarded, since the bottom then turns over too soon.

Une deuxième solution consistant à utiliser une tôle relativement plus mince doit être également écartée, car le sertissage implique la mise en oeuvre de tôles d'épaisseur minimum.A second solution consisting in using a relatively thinner sheet must also be ruled out, since crimping involves the use of sheets of minimum thickness.

Une troisième solution consistant à diminuer la concavité, c'est-à-­dire à augmenter le rayon de courbure du fond doit être également écartée, car elle diminue ou supprime la possibilité d'empiler les cartouches les unes sur les autres d'une part, et elle limite voire annule l'augmentation du volume de sécurité apportée par le retournement du fond concave, d'autre part.A third solution consisting in reducing the concavity, that is to say increasing the radius of curvature of the bottom must also be ruled out, because it decreases or eliminates the possibility of stacking the cartridges on top of each other on the one hand , and it limits or even cancels the increase in the volume of safety provided by the reversal of the concave bottom, on the other hand.

C'est alors que, toujours pour résoudre le même problème techni­que, la présente invention a considéré une autre voie de résolution, en soi inventive, et pouvant être formulée de la manière suivante. Si la pression d'éclatement demeure moins importante que la pression d'épreuve, c'est parce que, conformément à la figure 2, le pied droit (7b) de la voûte (7) du fond concave, céde ou glisse trop facilement par rapport au bord droit (4g) du corps (4). Ce glissement est en outre favorisé par la trajectoire dégageante des outils actuels d'emboutissage, laissant la pression interne agir à la manière d'un "coin" entre les portions (4g) et (7b).It was then that, still in order to solve the same technical problem, the present invention considered another way of resolution, in itself inventive, and which could be formulated in the following manner. If the burst pressure remains lower than the test pressure, it is because, in accordance with FIG. 2, the right foot (7b) of the arch (7) of the concave bottom, yields or slides too easily by relative to the right edge (4g) of the body (4). This sliding is further favored by the clearing path of current stamping tools, letting the internal pressure act in the manner of a "wedge" between the portions (4g) and (7b).

Partant de ce constat, l'invention a recherché tous moyens permet­tant de diminuer ou gêner les possibilités de glissement du fond par rap­port au corps cylindrique de la boîte à gaz.On the basis of this observation, the invention sought all means making it possible to reduce or hinder the possibilities of sliding of the bottom relative to the cylindrical body of the gas box.

De manière générale, selon l'invention, et par référence à la figure 4 en section diamétrale, on a trouvé qu'une zone de recouvrement entre le pied droit (7b) du fond concave (7) et le bord droit (4g) du corps cylin­drique (4), s'étendant en hauteur d'un niveau inférieur correspondant au cordon (8) annulaire de liaison, à un niveau supérieur situé au-dessus dudit cordon, conduit à un bon appui de la voûte (7a,7b) sur le corps (4), empê­chant tout éclatement ou fuite éventuel pendant la ou les déformations visibles de la boîte à gaz, sous l'effet de la pression interne.In general, according to the invention, and with reference to FIG. 4 in diametral section, it has been found that an overlap zone between the right foot (7b) of the concave bottom (7) and the right edge (4g) of the cylindrical body (4), extending in height from a lower level corresponding to the annular connecting cord (8), to an upper level located above said cord, leads to good support of the arch (7a, 7b) on the body (4), preventing any bursting or possible leakage during the visible deformation (s) of the gas box, under the effect of internal pressure.

La solution, selon l'invention, se matérialise par une zone de recou­vrement s'étendant en hauteur d'un niveau inférieur situé à la base du serti (8) a un niveau supérieur situé au-dessus de ce dernier.The solution according to the invention takes the form of an overlap zone extending in height from a lower level situated at the base of the seam (8) to an upper level situated above the latter.

Préférentiellement, la hauteur de la zone de recouvrement étant exprimée par le rapport entre (Cf. figure 4) la hauteur interne (c) du pied droit (7b) et la hauteur externe (s) du serti, on a déterminé que ce rapport devait être au moins égal pour obtenir le résultat recherché. En dessous de cette valeur, on obtient en effet, ou une grande proximité entre les pressions d'épreuve et d'éclatement, ou l'infériorité de la seconde par rapport à la pre­mière.Preferably, the height of the overlap area being expressed by the ratio between (see FIG. 4) the internal height (c) of the right foot (7b) and the external height (s) of the setting, it was determined that this ratio should be at least equal to obtain the desired result. Below this value, one obtains, in fact, a great proximity between the test and burst pressures, or the inferiority of the second compared to the first.

Par référence à la figure 5, similaire à la figure 3, mais pour une cartouche selon l'invention, on obtient un graphe d'épreuve hydraulique présentant les caractéristiques suivantes :
- la pression Pec est effectivement supérieure à la pression Pep,
- la déformation étanche du fond concerne principalement l'arc (7a) du fond, à l'exclusion du serti (8) ; cf. figure 5c ;
- l'éclatement intervient après cette déformation complète ; cf. figure 5d.With reference to FIG. 5, similar to FIG. 3, but for a cartridge according to the invention, a hydraulic test graph is obtained having the following characteristics:
- the pressure Pec is actually higher than the pressure Pep,
- the sealed deformation of the bottom mainly concerns the arch (7a) of the bottom, excluding the seam (8); cf. Figure 5c;
- bursting occurs after this complete deformation; cf. figure 5d.

L'invention apporte en outre les avantages déterminants suivants.The invention also provides the following determining advantages.

Elle ne modifie pas les autres caractéristiques de construction de la cartouche, telles que l'épaisseur des tôles métalliques mises en oeuvre.It does not modify the other construction characteristics of the cartridge, such as the thickness of the metal sheets used.

La pression d'épreuve ou de première déformation visible demeure relativement inchangée.The test or first visible deformation pressure remains relatively unchanged.

Seule la pression d'éclatement est relativement augmentée par rapport à la pression d'épreuve, ce qui signifie qu'on accroît notablement la sécurité d'utilisation d'une telle cartouche. De ce point de vue, et s'agis­sant de cartouches de butane, on peut alors envisager avec sécurité des remplissages de mélanges butane-propane présentant des tensions de vapeur relativement plus élevées, dits "butane dopé".Only the burst pressure is relatively increased compared to the test pressure, which means that the safety in use of such a cartridge is significantly increased. From this point of view, and in the case of butane cartridges, it is then possible to safely envisage filling with butane-propane mixtures having relatively higher vapor pressures, called "doped butane".

Claims (6)

1) Boîte pour fluide sous pression, du type emballage perdu ou jetable tel que cartouche perforable ou cartouche à valve, comprenant un corps métallique (4) à paroi cylindrique (4a) relativement mince, présen­tant à une extrémité une ouverture (4b) circulaire, un fond (7) concave métallique présentant en section diamétrale la forme d'une voûte, et fermant l'ouverture circulaire, le fond étant solidarisé de manière étanche au corps par un serti annulaire de liaison entre, d'une part la bordure du corps délimitant l'ouverture circulaire, et d'autre part le pied droit (7b) du fond concave, recouvrant le bord droit (4g) du corps (4), ledit serti ayant la forme d'un bourrelet extérieur, dont une coupe diamétrale montre la structure suivante :
- la bordure du corps est conformée à la manière d'un crochet d'ancrage (4f) tourné vers l'extérieur
- le fond concave (7) présente successivement de l'intérieur vers l'extérieur de la boîte, un arc intérieur (7) symétrique par rapport à l'axe (9) du corps, le pied droit (7b) intérieur, et un crochet extérieur (7c) retour­né et engagé dans le crochet d'ancrage (4f) de la bordure circulaire
- la zone de recouvrement entre le pied droit (7b) du fond concave (7) et le bord droit (4g) du corps cylindrique (4) s'étendant en hauteur à partir d'un niveau inférieur situé à la base du serti
caractérisée en ce que le bord droit (4g) s'étend en hauteur jusqu'à un niveau supérieur situé au-dessus du serti (8).1) Box for pressurized fluid, of the lost or disposable packaging type such as a perforable cartridge or a valve cartridge, comprising a metal body (4) with a relatively thin cylindrical wall (4a), having at one end a circular opening (4b), a metal concave bottom (7) having in cross section the shape of a vault, and closing the circular opening, the bottom being secured in leaktight manner to the body by an annular connection crimp between, on the one hand the edge of the body delimiting the circular opening, and on the other hand the right foot (7b) of the concave bottom, covering the right edge (4g) of the body (4), said seam having the shape of an external bead, of which a diametral cut shows the following structure:
- the edge of the body is shaped like an anchor hook (4f) facing outwards
- the concave bottom (7) successively presents from the inside towards the outside of the box, an interior arc (7) symmetrical with respect to the axis (9) of the body, the inside right foot (7b), and a outer hook (7c) turned over and engaged in the anchoring hook (4f) of the circular border
- the overlap zone between the right foot (7b) of the concave bottom (7) and the right edge (4g) of the cylindrical body (4) extending in height from a lower level located at the base of the setting
characterized in that the straight edge (4g) extends in height up to a higher level located above the setting (8). 2) Boîte selon la revendication 2, caractérisée en ce que la hauteur de recouvrement entre le pied droit (7b) du fond concave (7) et le bord droit (4g) du corps cylindrique (4), exprimée par le rapport entre la hauteur interne (c) dudit pied droit et la hauteur externe (s) du serti annulaire, est au moins égale à 1,7.2) Box according to claim 2, characterized in that the overlap height between the right foot (7b) of the concave bottom (7) and the right edge (4g) of the cylindrical body (4), expressed by the ratio between the height internal (c) of said right foot and the external height (s) of the annular setting, is at least equal to 1.7. 3) Boîte selon l'une quelconque des revendications 1 et 2, du type cartouche perforable, caractérisée en ce que la partie du corps opposée à l'ouverture circulaire est fermée en continuité avec la paroi cyclindrique, et se présente à la manière d'un dôme convexe délimitant en son centre une zone de perforation.3) Box according to any one of claims 1 and 2, of the perforable cartridge type, characterized in that the part of the body opposite the circular opening is closed in continuity with the cylindrical wall, and is in the manner of a convex dome delimiting in its center a perforation zone. 4) Boîte selon l'une quelconque des revendications 1 à 2, du type cartouche à valve, caractérisée en ce que la partie du corps (4) opposée à l'ouverture circulaire (4b) est fermée (4c) en continuité avec la paroi cylindrique (4a), et présente en son centre une autre ouverture (4d) fermée ou destiné à être fermée par une valve (5) de prélèvement du fluide sous pression, notamment du type valve aérosol.4) Box according to any one of claims 1 to 2, of the valve cartridge type, characterized in that the part of the body (4) opposite the circular opening (4b) is closed (4c) in continuity with the wall cylindrical (4a), and has in its center another closed opening (4d) or intended to be closed by a valve (5) for sampling the pressurized fluid, in particular of the aerosol valve type. 5) Boîte selon la revendication 3, caractérisée en ce qu'elle con­tient un fluide (1) sous pression, par exemple un gaz de pétrole liquéfié sous pression.5) Box according to claim 3, characterized in that it contains a fluid (1) under pressure, for example a pressurized liquefied petroleum gas. 6) Boîte selon la revendication 4, fermée par une valve, caracté­risée en ce qu elle contient un fluide sous pression, par exemple un gaz de pétrole liquéfié sous pression.6) Box according to claim 4, closed by a valve, characterized in that it contains a pressurized fluid, for example a pressurized liquefied petroleum gas.
EP90420149A 1989-03-30 1990-03-26 Pressurised fluid container Expired - Lifetime EP0390711B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8904848 1989-03-30
FR8904848A FR2645245B1 (en) 1989-03-30 1989-03-30 BOX FOR PRESSURE FLUID

Publications (2)

Publication Number Publication Date
EP0390711A1 true EP0390711A1 (en) 1990-10-03
EP0390711B1 EP0390711B1 (en) 1992-10-21

Family

ID=9380651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420149A Expired - Lifetime EP0390711B1 (en) 1989-03-30 1990-03-26 Pressurised fluid container

Country Status (5)

Country Link
EP (1) EP0390711B1 (en)
DE (1) DE69000390T2 (en)
FR (1) FR2645245B1 (en)
GR (1) GR1001115B (en)
IT (1) IT1239222B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2757487A1 (en) * 1996-12-20 1998-06-26 Applic Gaz Sa STACKABLE PRESSURE FLUID BOX
WO2006100354A1 (en) * 2005-03-24 2006-09-28 Application Des Gaz Cartridge for pressurized liquid
CN104334294A (en) * 2012-03-26 2015-02-04 阿德Mp集团荷兰有限责任公司 End panel, and a container body or container provided by a double seamed with such end panel

Families Citing this family (3)

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Publication number Priority date Publication date Assignee Title
DE102005010282B3 (en) * 2005-03-07 2006-11-02 Rothenberger Ag Compressed gas source with fuel gas filling
DE102005010281B3 (en) * 2005-03-07 2006-10-05 Rothenberger Ag Compressed gas source with fuel gas filling
GR1009130B (en) * 2014-05-29 2017-10-06 Μιλτιαδης Αναστασιου Καπος System for restricting the liquid gas flow from a gas cylinder

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FR1173047A (en) * 1956-03-19 1959-02-18 Roto Werke Ag Improvements made to pressure receptacles, which empty automatically, for materials of all kinds
US3339793A (en) * 1964-12-16 1967-09-05 Rheem Mfg Co End closures for drums and equivalent containers
DE2049425A1 (en) * 1969-10-14 1971-04-29 Etablissements J J Carnaud & For ges de Basse Indre S A, Pans Aerosol container
USRE29307E (en) * 1965-06-18 1977-07-19 Futs Metalliques Gallay S.A. Manufacture of metallic containers

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FR1173047A (en) * 1956-03-19 1959-02-18 Roto Werke Ag Improvements made to pressure receptacles, which empty automatically, for materials of all kinds
US3339793A (en) * 1964-12-16 1967-09-05 Rheem Mfg Co End closures for drums and equivalent containers
USRE29307E (en) * 1965-06-18 1977-07-19 Futs Metalliques Gallay S.A. Manufacture of metallic containers
DE2049425A1 (en) * 1969-10-14 1971-04-29 Etablissements J J Carnaud & For ges de Basse Indre S A, Pans Aerosol container

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2757487A1 (en) * 1996-12-20 1998-06-26 Applic Gaz Sa STACKABLE PRESSURE FLUID BOX
US6095332A (en) * 1996-12-20 2000-08-01 Application Des Gaz Stackable canister for fluid under pressure
ES2149078A1 (en) * 1996-12-20 2000-10-16 Applic Gaz Sa Stackable canister for fluid under pressure
DE19754111B4 (en) * 1996-12-20 2007-04-05 Application Des Gaz Stackable container for a pressurized fluid
WO2006100354A1 (en) * 2005-03-24 2006-09-28 Application Des Gaz Cartridge for pressurized liquid
FR2883625A1 (en) * 2005-03-24 2006-09-29 Applic Des Gaz Soc Par Actions CARTRIDGE FOR FLUID UNDER PRESSURE
AU2005329658B2 (en) * 2005-03-24 2011-06-30 Application Des Gaz Cartridge for pressurized liquid
AU2005329658C1 (en) * 2005-03-24 2012-09-27 Application Des Gaz Cartridge for pressurized liquid
CN104334294A (en) * 2012-03-26 2015-02-04 阿德Mp集团荷兰有限责任公司 End panel, and a container body or container provided by a double seamed with such end panel

Also Published As

Publication number Publication date
GR1001115B (en) 1993-04-28
DE69000390D1 (en) 1992-11-26
FR2645245A1 (en) 1990-10-05
DE69000390T2 (en) 1993-04-22
IT1239222B (en) 1993-09-28
FR2645245B1 (en) 1992-09-18
IT9019410A1 (en) 1991-08-19
EP0390711B1 (en) 1992-10-21
GR900100216A (en) 1990-07-31
IT9019410A0 (en) 1990-02-19

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