EP1647786B1 - Self-cooling bottle - Google Patents

Self-cooling bottle Download PDF

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Publication number
EP1647786B1
EP1647786B1 EP04292474A EP04292474A EP1647786B1 EP 1647786 B1 EP1647786 B1 EP 1647786B1 EP 04292474 A EP04292474 A EP 04292474A EP 04292474 A EP04292474 A EP 04292474A EP 1647786 B1 EP1647786 B1 EP 1647786B1
Authority
EP
European Patent Office
Prior art keywords
bottle
heat exchanger
glass
self
wall
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
EP04292474A
Other languages
German (de)
French (fr)
Other versions
EP1647786A1 (en
Inventor
Pierre Jeuch
Lionel Frantz
Fadi Khairallah
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.)
Thermagen SA
Original Assignee
Thermagen SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thermagen SA filed Critical Thermagen SA
Priority to EP04292474A priority Critical patent/EP1647786B1/en
Priority to DE602004014504T priority patent/DE602004014504D1/en
Priority to AT04292474T priority patent/ATE398757T1/en
Priority to PCT/FR2005/002509 priority patent/WO2006042934A1/en
Priority to US11/577,397 priority patent/US20080073358A1/en
Publication of EP1647786A1 publication Critical patent/EP1647786A1/en
Application granted granted Critical
Publication of EP1647786B1 publication Critical patent/EP1647786B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/006—Other cooling or freezing apparatus specially adapted for cooling receptacles, e.g. tanks
    • F25D31/007—Bottles or cans
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G23/00—Other table equipment
    • A47G23/02—Glass or bottle holders
    • A47G23/0208—Glass or bottle holders for drinking-glasses, plastic cups, or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G23/00—Other table equipment
    • A47G23/02—Glass or bottle holders
    • A47G23/0241—Glass or bottle holders for bottles; Decanters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B17/00—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type
    • F25B17/08—Sorption machines, plants or systems, operating intermittently, e.g. absorption or adsorption type the absorbent or adsorbent being a solid, e.g. salt
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/803—Bottles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/808—Glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/809—Holders
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble

Definitions

  • the present invention relates to a package comprising a glass bottle associated with a device for cooling its contents by a method of evaporation and adsorption.
  • the principle of such a cooling method is to evaporate a liquid, said coolant, under the effect of a depression maintained by pumping the vapors of said liquid.
  • the invention applies to the cooling of a beverage contained in a glass bottle, in particular to the cooling of an alcoholic beverage.
  • An object of the present invention is thus to allow the consumption of a beverage, for example champagne, at an ideal temperature in any place and at any time.
  • patent applications EP-A-1 164 341 and WO 03/073019 the applicant and the patent application WO 01/10738 describe self-cooling beverage packages and their manufacture.
  • the packages described in these documents use metal containers, such as cans, to hold the beverage to be cooled.
  • the use of a metal container is however not appropriate in the case of certain drinks, for example champagne or white wine.
  • the patent US-A-6,128,906 discloses a self-cooling package associating a bottle with a refrigeration device containing a gas under pressure.
  • the cooling method used is therefore that of the aforementioned gas expansion and not a method of cooling by evaporation and adsorption.
  • This cooling method has several disadvantages.
  • the gas cartridge occupies a large part of the volume of the beverage to be cooled, which is imposed by the amount of gas required for cooling of the drink.
  • the cost price of a compressed gas cartridge is high and the choice of a gas compatible with ecological standards is limited.
  • the self-cooling bottle described in the patent US-A-6,128,906 can be plastic or glass and the refrigeration device is metal to withstand the high pressure of the compressed gas and ensure a good heat transfer between the refrigeration system and the beverage to be cooled.
  • the assembly of the metal refrigeration device in the glass bottom of the bottle requires shaping of the bottle and the use of two intermediate pieces of complex shapes - referenced 130 and 144 on the figure 4 of the patent in suit.
  • the seal must be provided at three points, between the bottle and a first intermediate piece, between the gas cartridge and the second intermediate piece and between the two intermediate pieces.
  • WO-A-03/059779 discloses a self-cooling package comprising a first cavity containing a product to be refrigerated, a second cavity forming an evaporator and containing a coolant and its vapor, a third cavity comprising adsorption pumping means, and means of communication between the second and third cavities.
  • the first and second cavities have a metal common wall forming a heat exchanger.
  • GB-A-26,536 discloses a method of manufacturing a container comprising a metal tube fixed in the bottom of the container by a screw ring permanently connected to the container. The interior of the tube is filled with hot water or ice depending on whether it is desired to keep the contents of the container warm or cool.
  • the present invention proposes to make an assembly of a glass bottle with a metal heat exchanger constituting directly the bottom of the bottle.
  • the heat exchanger has a protective coating on its inner face to the first cavity.
  • the protective coating comprises silica or enamel.
  • the package comprises a sealed mechanical connection between the glass of the bottle and the heat exchanger
  • the sealed connection comprises sealing the glass of the bottle with a protective coating of the heat exchanger.
  • the package comprises a mechanical connection and a seal between the glass of the bottle and the heat exchanger.
  • the mechanical connection is constituted by a return of metal from the bottom in a groove of the wall of the bottle.
  • the mechanical connection is constituted by a screwing of the heat exchanger on the glass wall of the bottle.
  • the seal is an O-ring disposed in a groove of the wall of the bottle.
  • the seal is a flat seal disposed on the edge of the wall of the bottle.
  • a box containing the third cavity is assembled to the bottle by stirring on the extension of the heat exchanger.
  • the step of assembling the heat exchanger with the glass of the bottle is performed by sealing the glass of the bottle with a protective coating of the heat exchanger.
  • the step of assembling the heat exchanger with the glass of the bottle comprises the steps of screwing the heat exchanger onto the glass wall of the bottle and placing a seal between the glass of the bottle and the heat exchanger.
  • the step of assembling the heat exchanger with the glass of the bottle comprises the steps of pushing the metal of the heat exchanger in a groove of the glass wall of the bottle and place a seal between the glass of the bottle and the heat exchanger.
  • the adsorbent box is assembled to the heat exchanger before or after assembling the heat exchanger to the bottle.
  • the adsorbent box is assembled to the heat exchanger by soldering.
  • the support further comprises at least one boss on which an inverted glass can be threaded.
  • At least two stem glasses are arranged on the support, the feet being shaped so as to support two opposite arcs of the bottle.
  • the self-cooling package according to the invention is described with reference to the figure 1 .
  • the self-cooling package according to the invention comprises a glass bottle 1 constituting a first cavity 10 containing a drinking drink to be cooled, for example wine or champagne, and a second cavity 20 forming an evaporator.
  • the first 10 and the second 20 cavities have a metal common wall 15 which constitutes a heat exchanger, this wall 15 forming the bottom of the bottle 1.
  • the metal heat exchanger 15 is connected directly to the glass wall of the bottle.
  • the heat exchanger 15 advantageously has a conical shape with ribs in order to promote the heat exchange by convection in the first cavity 10.
  • the package also comprises a metal box 31 delimiting a third cavity 30 containing pumping means by adsorption of the vapor of a refrigerant liquid contained in the second cavity 20.
  • the second cavity 20 contains the coolant and its vapors.
  • the pressure in the second cavity before the onset of the evaporation reaction is about 30 mbar at 23 ° C when the coolant is water.
  • the adsorbent box 31 is assembled and closed under vacuum, with a vacuum of less than 1 mbar and preferably less than 0.1 mbar.
  • the cooling reaction is initiated by a depression when the evaporator (the second cavity) is placed in communication with a zone of greater depression (the third cavity). This cooling reaction is then maintained by pumping the vapors of the refrigerant liquid through the adsorbent, for example a desiccant, from the second cavity 20 to the third cavity 30.
  • the packaging further comprises means for triggering the cooling reaction.
  • This reaction is triggered by placing in communication the second 20 and third cavities, thus causing the evaporation of the refrigerant liquid from the second cavity 20, the vapor of which is pumped by a desiccant contained in the third cavity 30.
  • the packaging comprises communication means 40 of the second cavity 20 with the third cavity 30 integrated in a common wall 25 to said cavities.
  • This common wall 25 constitutes a lid of the adsorbent box 31.
  • the communication means 40 may be constituted by a non-return valve closing an opening in the common wall 25 of the second and third cavities.
  • This valve has the particularity of being able to open only towards the outside of the adsorption cavity 30, ie towards the inside of the evaporation cavity 20.
  • the cooling reaction is triggered by the displacement of the valve towards the inside of the second cavity 20.
  • the non-return valve is actuated by a push rod 45 transmitting a displacement of at least a portion of the wall 35 of the adsorbent box 31 opposite the wall 25 comprising the communication establishment means 40.
  • Such communication establishment means 40 are described in the patent application. WO 03/0730019 the applicant.
  • the packaging according to the invention therefore has a bottle 1 whose bottom 15 consists of a metal wall forming a heat exchanger.
  • the metal bottom 15 of the bottle 1 must meet the same food criteria as the glass of the bottle.
  • the use of a glass bottle is justified by the nature of the product to be refrigerated, in particular for beverages such as wine or champagne.
  • the metal base 15 must therefore have a food protection coating 16 on its internal face to the first cavity 10. This coating must not constitute a thermal barrier to the cooling of the beverage.
  • Such a coating may comprise silica or enamel.
  • the coating may also be constituted by a thin layer deposition of a material qualified for food contact, such as CrN for example.
  • Thin film deposition can be achieved by PVD vacuum deposition, CVD chemical deposition at low pressure or plasma assisted, electrochemical deposition or spray deposition followed by curing, particularly with epoxy products. It is understood that any other deposit qualified for food contact, in particular for alcoholic beverages, may be suitable as a metal bottom coating in the context of the invention.
  • the coating 16 has a low thickness, of the order of a few microns to a few tenths of a millimeter. It is illustrated magnified on the figure 2 and omi in the other figures.
  • the assembly of a glass bottle 1 with a metal bottom 15 must respond mainly to two constraints. On the one hand, the assembly must have a mechanical strength at high pressures, more than 7 bars when champagne is contained in the bottle 1, and secondly, the assembly must have a good seal at these pressures.
  • the assembly between the glass bottle 1 and the heat exchanger 15 may have a sealed mechanical connection 17 which thus simultaneously meets the two aforementioned constraints.
  • a connection 17 may comprise a sealing of the protective coating 16 of the heat exchanger 15 with the glass of the bottle 1.
  • Such a seal may for example be obtained for an enamel coating 16 by a passage at high temperature such that this will be explained later.
  • the heat exchanger 15 may have an extension 22 extending over a portion of the outer glass wall of the bottle 1.
  • the metal wall 15 thus encloses the bottom of the bottle.
  • the sealed mechanical connection 17 is then located on the outer periphery of bottom of the bottle, between the glass of the bottle 1 and the extension 22 of the heat exchanger 15.
  • the metal extension 22 puts the glass of the bottle 1 locally in compression during the cooling of the package after assembly, since the metal expands more than the glass during the transition to high temperature. The seal and the mechanical strength are improved.
  • the metal extension 22 of the bottom 15 on the outer wall of the bottle 1 further allows an assembly of the adsorbent box 31 with the bottom of the bottle, as will be explained later.
  • the assembly between the glass bottle 1 and the heat exchanger 15 may have a mechanical connection 18 associated with a seal 19 to meet the two aforementioned assembly constraints.
  • a mechanical connection 18 may be constituted by a metal recess of the bottom 15 in a groove 14 of the wall of the bottle 1.
  • the heat exchanger 15 may have an extension 22 extending over a portion of the outer glass wall of the bottle 1 to enclose the bottom of the bottle and allow an assembly of the adsorbent box 31 with the bottom of the bottle.
  • Metal of the extension 22 of the bottom 15 can be pushed back by means of a knob into a groove 14 molded into the outer wall of the bottle 1.
  • the seal 19 may be an elastomer o-ring disposed in a groove 13 of the wall of the bottle 1.
  • the groove 13 containing the seal 19 is preferably located under the groove 14 mechanical connection.
  • the seal 19 is thus compressed in the groove 13 by the extension 22 of the bottom 15.
  • the O-ring 19 may also be disposed in the same mechanical connection groove 14 just below the metal return 18 providing the mechanical connection.
  • the height of the groove 14 must be sufficient to allow the seal 19 and the metal return 18 to return and relatively small so that the seal 19 is compressed when the extension 22 of the heat exchanger 15 is pushed back into the groove 14 of the bottle 1.
  • the mechanical connection 21 may be constituted by a screwing of the heat exchanger 15 on the glass wall of the bottle 1.
  • a thread may be molded in the outer wall of the bottle 1 and a complementary thread may be formed on the wall internal of the extension 22 of the heat exchanger 15.
  • the seal 19 is a flat gasket disposed on the edge of the wall of the bottle 1.
  • the flat gasket 19 is compressed when the heat exchanger 15 is screwed onto the outer wall of the bottle 1.
  • a flat gasket 19 can be used in the embodiments of the Figures 3 and 4 , the flat gasket 19 being compressed when metal 18 is pushed back into the groove 14, slightly raising the heat exchanger 15 towards the top of the bottle 1.
  • an O-ring 19 may be used in the embodiment illustrated in FIG. the figure 5 , the O-ring 19 then being placed in a groove 13 below the thread 21 of the wall of the bottle and compressed during the screwing of the bottom 15.
  • the assembly of the packaging according to the invention does not require any intermediate part between the heat exchange 15 and the bottle 1.
  • the package according to the invention can be manufactured in the following manner.
  • a glass bottle 1 is made without bottom from a suitable mold. Such a bottle 1 may have side walls more or less flared depending on the intended applications, that is to say, depending on the product to be cooled, so that the self-cooling bottle has overall a shape similar to conventional bottles containing the same product .
  • a metal wall 15 is joined to the glass walls of the bottle to form a bottle bottom.
  • the metal wall 15 serving as a heat exchanger may previously be shaped conically so as to create convection currents in the beverage to be cooled. The effects of convection currents are explained in the application EP-A-1 444 938 the applicant.
  • a box 31 containing adsorption pumping means is connected to the metal bottom 15 of the bottle 1.
  • This box 31 is preferably metallic and has a lid 25 which with the metal base 15 of the bottle 1 delimits an evaporator 20.
  • a cooling liquid is previously arranged in the evaporator 20, for example by placing an ice cube in the hollow of the metal base 15 before closing the cavity 20 by the cover 25 of the box 31.
  • the adsorption means contained in the cavity 30 delimited by the box 31 may consist of an adsorbent block shaped as described in the patent application. EP-A-1,297,287 the applicant.
  • the adsorbent box 31 may also contain the activation means previously described with the valve 40 arranged closed on the cover 25 of the box 31. Such an assembly is described in the application WO 03/073019 supra.
  • the assembly of the heat exchanger 15 with the glass of the bottle 1 can be achieved by sealing between the protective coating 16 of the metal base 15 with the glass of the bottle 1, by heating the zone. where the extension 22 of the heat exchanger 15 extends on the outer wall of the bottle 1.
  • a heat treatment of the order of 800 to 900 ° C causes a softening of the glass of the bottle and the coating which then binds to one another. It is also possible to directly mold the bottle 1 on the heat exchanger 15 previously coated. The bottom can be integrated into the mold used to make the bottle. The molten glass is then directly sealed to the bottom 15 on cooling.
  • the glass bottle 1 with its metal bottom 15 and the adsorbent box 31 with its lid 25 are then on the one hand.
  • the adsorbent box 31 may have sidewalls that extend beyond the cover 25 to form a collar 32 which can surround the extension 22 of the heat exchanger 15 around the bottle 1.
  • the outer face of the heat exchanger 15 is not covered with a protective coating such as the internal face.
  • the flange 32 of the box 31 can then be assembled at the bottom 15 of the bottle by brazing on the lateral extension 22 of the bottom 15. A method of assembly by suitable brazing is described in the application WO 03/072289 the applicant.
  • the assembly of the metal wall 15 with the glass of the bottle 1 can be achieved by screwing the heat exchanger 15 onto the glass wall of the bottle 1 by first providing a seal 19 between the glass of the bottle 1 and the heat exchanger 15.
  • a dot of glue may optionally be added to the thread during assembly of the heat exchanger to the bottle to prevent unscrewing.
  • the assembly of the metal wall 15 with the glass of the bottle 1 can be achieved by pushing, for example with a wheel, the metal of the heat exchanger 15 into a groove 14 of the wall. glass of the bottle 1 by previously arranging a seal 19 between the glass of the bottle 1 and the heat exchanger 15.
  • the adsorbent box 31 it is preferable to first assemble the adsorbent box 31 with the heat exchanger 15, then assemble the whole into the bottom of the glass bottle. Indeed, the presence of the seal 19 does not allow soldering the adsorbent box 31 with the bottom 15 if the latter is already attached to the glass bottle; the elastomer seal 19 being damaged by the stirring temperatures.
  • an adsorbent box 31 with a lid 25 and a flange 32 is thus provided and the evaporator 20 is formed by assembling a cone-shaped wall 15 on the flange 32, having previously placed the cooling liquid between the cover 25 and the wall 15.
  • the metal wall 15 with the box 31 integral can then be assembled in the bottom of the bottle according to one of the second or third embodiments mentioned above.
  • the self-cooling package according to the invention is used in the following manner.
  • the cooling of the contents of the glass bottle 1 is caused by the communication of the second 20 and third cavities as previously discussed. This communication can be done by operating a push button 35 pushing the rod 45 to lift the valve 40 so as to open a pumping path of the coolant vapors from the second evaporator cavity 20 to the third cavity d Adsorber 30.
  • the establishment of convection currents in the first cavity of the bottle 10 is favored when the cooling of the package is actuated with the cone of the heat exchanger 15 facing downwards.
  • this arrangement of the package prevents coolant flowing in the adsorbent box 31, only the vapor of the coolant to be pumped.
  • the figure 6 illustrates another way of keeping the bottle upside down.
  • a carrier associated with the packaging according to the invention keeps the bottle in this upside down position during the cooling period, ie about 2 to 5 minutes.
  • Such a support 100 may be in cardboard or plastic and has a chimney 110 in which the head of the bottle 1, cap and neck, is inserted. This chimney is deep enough and rigid to hold the bottle upside down for the required time. Once the cooling is completed, the bottle 1 can be seized, turned over and opened for tasting.
  • the Figures 7a and 7b illustrate an alternative embodiment of the support 100.
  • the support 100 has two bosses 115 ( figure 7a ) on which two 150 glasses returned can be slipped ( figure 7b ).
  • a single boss 115 may be provided as more than two bosses 115 may be arranged on the support 100.
  • the glasses 150 may be on foot, and the respective shaped feet crescent to support two opposite arcs of the bottle 1. The side maintains of the bottle is thus improved during cooling.
  • the support is preferably square or rectangular to match the bottom of a box in which the self-cooling package would be sold.
  • a self-cooling kit can thus be provided with a bottle associated with a self-cooling device and two glasses for consumption after cooling the contents of the bottle.
  • the present invention is not limited to the embodiments described by way of example; thus, the shape of the heat exchanger 15 of the bottle 1 may vary from the illustrated cone to present a more flattened or pointed shape, or any other shape.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Packages (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Thermally Insulated Containers For Foods (AREA)

Abstract

The package has a glass bottle (1) with a cavity (10) containing a product to be refrigerated, a cavity (20) forming an evaporator and containing a freezing liquid and its vapor, and a cavity (30) containing pumping units. The cavities (10, 20) have a common metallic wall forming a heat exchanger (15) and constituting the base of the bottle. The exchanger has a metallic extension (22) on a portion of the wall. The pumping units pump by adsorption of the vapor of the freezing liquid. The cavities (20, 30) are connected by connecting units (40). Independent claims are also included for the following: (A) a method for manufacturing a self-refrigerating package (B) a self-refrigerating assembly.

Description

La présente invention se rapporte à un emballage comprenant une bouteille en verre associée à un dispositif permettant de refroidir son contenu par une méthode d'évaporation et adsorption. Le principe d'une telle méthode de refroidissement consiste à évaporer un liquide, dit liquide réfrigérant, sous l'effet d'une dépression entretenue par pompage des vapeurs dudit liquide. L'invention s'applique au refroidissement d'une boisson contenue dans une bouteille en verre, en particulier au refroidissement d'une boisson alcoolisée.The present invention relates to a package comprising a glass bottle associated with a device for cooling its contents by a method of evaporation and adsorption. The principle of such a cooling method is to evaporate a liquid, said coolant, under the effect of a depression maintained by pumping the vapors of said liquid. The invention applies to the cooling of a beverage contained in a glass bottle, in particular to the cooling of an alcoholic beverage.

Un objet de la présente invention est ainsi de permettre la consommation d'une boisson, par exemple du champagne, à une température idéale en tout lieu et à toute heure.An object of the present invention is thus to allow the consumption of a beverage, for example champagne, at an ideal temperature in any place and at any time.

Il existe principalement deux méthodes physiques de refroidissement du contenu d'un emballage ou d'une enceinte. D'une part, le refroidissement par détente d'un gaz selon les lois thermodynamiques classiques qui lient la température et la pression, et d'autre part le refroidissement par évaporation et adsorption, dont le principe consiste à évaporer un liquide sous l'effet d'une dépression entretenue par adsorption des vapeurs dudit liquide.There are mainly two physical methods of cooling the contents of a package or enclosure. On the one hand, the expansion cooling of a gas according to the conventional thermodynamic laws that link the temperature and the pressure, and on the other hand the cooling by evaporation and adsorption, whose principle consists in evaporating a liquid under the effect a vacuum maintained by adsorption of the vapors of said liquid.

La mise en oeuvre de la méthode de refroidissement par évaporation et adsorption est connue et a fait l'objet de nombreuses recherches dans l'art antérieur. De nombreux dispositifs ont été proposés, associant un évaporateur contenant un liquide à évaporer avec un réservoir contenant un adsorbant, en particulier pour des applications à des emballages de boisson auto-réfrigérants de type canette.The implementation of the method of cooling by evaporation and adsorption is known and has been the subject of much research in the prior art. Numerous devices have been proposed, associating an evaporator containing a liquid to be evaporated with an adsorbent-containing reservoir, in particular for applications to can-type self-cooling beverage packages.

Par exemple, les demandes de brevet EP-A-1 164 341 et WO 03/073019 du demandeur ainsi que la demande de brevet WO 01/10738 décrivent des emballages de boisson auto-réfrigérants et leur fabrication. Les emballages décrits dans ces documents utilisent des conteneurs métalliques, telle que des canettes, pour contenir la boisson à refroidir. L'utilisation d'un conteneur métallique n'est cependant pas appropriée dans le cas de certaines boissons, par exemple du champagne ou du vin blanc.For example, patent applications EP-A-1 164 341 and WO 03/073019 the applicant and the patent application WO 01/10738 describe self-cooling beverage packages and their manufacture. The packages described in these documents use metal containers, such as cans, to hold the beverage to be cooled. The use of a metal container is however not appropriate in the case of certain drinks, for example champagne or white wine.

Le brevet US-A-6 128 906 décrit un emballage auto-réfrigérant associant une bouteille avec un dispositif de réfrigération contenant un gaz sous pression. La méthode de refroidissement utilisée est donc celle de la détente de gaz précitée et non pas une méthode de refroidissement par évaporation et adsorption. Cette méthode de refroidissement présente plusieurs inconvénients. D'une part, la cartouche de gaz occupe une grande partie du volume de la boisson à refroidir, ce qui est imposé par la quantité de gaz nécessaire au refroidissement de la boisson. D'autre part, le prix de revient d'une cartouche de gaz comprimé est élevé et le choix d'un gaz compatible avec les normes écologiques est restreint.The patent US-A-6,128,906 discloses a self-cooling package associating a bottle with a refrigeration device containing a gas under pressure. The cooling method used is therefore that of the aforementioned gas expansion and not a method of cooling by evaporation and adsorption. This cooling method has several disadvantages. On the one hand, the gas cartridge occupies a large part of the volume of the beverage to be cooled, which is imposed by the amount of gas required for cooling of the drink. On the other hand, the cost price of a compressed gas cartridge is high and the choice of a gas compatible with ecological standards is limited.

La bouteille auto-réfrigérante décrite dans le brevet US-A-6 128 906 peut être en plastique ou en verre et le dispositif de réfrigération est en métal afin de résister à la pression élevée du gaz comprimé et d'assurer un bon transfert de chaleur entre le système de réfrigération et la boisson à refroidir. Dans le cas d'une bouteille en verre, l'assemblage du dispositif de réfrigération métallique dans le fond en verre de la bouteille nécessite une mise en forme de la bouteille et l'utilisation de deux pièces intermédiaires de formes complexes - référencées 130 et 144 sur la figure 4 du brevet en cause. L'étanchéité doit être assurée en trois points, entre la bouteille et une première pièce intermédiaire, entre la cartouche de gaz et la deuxième pièce intermédiaire et entre les deux pièces intermédiaires. Cette triple étanchéité au moyen de joints- référencés 136, 146 et 150 sur la figure 4 du brevet en cause, implique une construction complexe et onéreuse de l'emballage avec une étanchéité peu fiable. Cette fixation complexe résulte de la forme et du poids du dispositif de réfrigération par gaz comprimé à fixer au fond de la bouteille.The self-cooling bottle described in the patent US-A-6,128,906 can be plastic or glass and the refrigeration device is metal to withstand the high pressure of the compressed gas and ensure a good heat transfer between the refrigeration system and the beverage to be cooled. In the case of a glass bottle, the assembly of the metal refrigeration device in the glass bottom of the bottle requires shaping of the bottle and the use of two intermediate pieces of complex shapes - referenced 130 and 144 on the figure 4 of the patent in suit. The seal must be provided at three points, between the bottle and a first intermediate piece, between the gas cartridge and the second intermediate piece and between the two intermediate pieces. This triple sealing by means of joints-referenced 136, 146 and 150 on the figure 4 of the patent in question, involves a complex and expensive construction of the packaging with an unreliable seal. This complex fixation results from the shape and weight of the refrigeration device by compressed gas to be fixed at the bottom of the bottle.

Le document WO-A-03/059779 décrit un emballage auto-réfrigérant comprenant une première cavité contenant un produit à réfrigérer, une seconde cavité formant un évaporateur et contenant un liquide réfrigérant et sa vapeur, une troisième cavité comprenant des moyens de pompage par adsorption, et des moyens de communication entre les seconde et troisième cavités. Les première et seconde cavités présentent une paroi commune métallique formant un échangeur thermique Le document GB-A-26 536 décrit un procédé de fabrication d'un récipient comprenant un tube métallique fixé dans le fond du récipient par un anneau de vissage relié de manière inamovible au récipient. L'intérieur du tube est rempli d'eau chaude ou de glace selon que l'on désire maintenir chaud ou refroidir le contenu du récipient.The document WO-A-03/059779 discloses a self-cooling package comprising a first cavity containing a product to be refrigerated, a second cavity forming an evaporator and containing a coolant and its vapor, a third cavity comprising adsorption pumping means, and means of communication between the second and third cavities. The first and second cavities have a metal common wall forming a heat exchanger. GB-A-26,536 discloses a method of manufacturing a container comprising a metal tube fixed in the bottom of the container by a screw ring permanently connected to the container. The interior of the tube is filled with hot water or ice depending on whether it is desired to keep the contents of the container warm or cool.

Il existe donc un besoin pour un emballage comprenant une bouteille en verre associée à un dispositif permettant de refroidir son contenu qui puisse être fabriquée de manière simplifiée et à un coût réduit.There is therefore a need for a package comprising a glass bottle associated with a device for cooling its contents that can be manufactured in a simplified manner and at a reduced cost.

A cet effet, la présente invention propose de réaliser un assemblage d'une bouteille en verre avec un échangeur thermique métallique constituant directement le fond de la bouteille.For this purpose, the present invention proposes to make an assembly of a glass bottle with a metal heat exchanger constituting directly the bottom of the bottle.

Plus particulièrement, l'invention concerne un emballage auto-réfrigérant comprenant :

  • une bouteille en verre constituant une première cavité contenant un produit à réfrigérer ;
  • une seconde cavité formant un évaporateur et contenant un liquide réfrigérant et sa vapeur ;
  • une troisième cavité contenant des moyens de pompage par adsorption de ladite vapeur ;
  • des moyens de mise en communication desdites seconde et troisième cavités ;
les première et seconde cavités présentant une paroi commune métallique formant un échangeur thermique, ledit échangeur thermique constituant le fond de la bouteille et présentant une prolongation s'étendant sur une portion de la paroi externe de la bouteille.More particularly, the invention relates to a self-cooling package comprising:
  • a glass bottle constituting a first cavity containing a product to be refrigerated;
  • a second cavity forming an evaporator and containing a coolant and its vapor;
  • a third cavity containing means for pumping by adsorption of said vapor;
  • means for communicating said second and third cavities;
the first and second cavities having a metal common wall forming a heat exchanger, said heat exchanger constituting the bottom of the bottle and having an extension extending over a portion of the outer wall of the bottle.

Selon une caractéristique, l'échangeur thermique présente un revêtement de protection alimentaire sur sa face interne à la première cavité.According to one characteristic, the heat exchanger has a protective coating on its inner face to the first cavity.

Selon les modes de réalisation, le revêtement de protection comporte de la silice ou de l'émail.According to the embodiments, the protective coating comprises silica or enamel.

Selon un mode de réalisation, l'emballage comprend une liaison mécanique étanche entre le verre de la bouteille et l'échangeur thermiqueAccording to one embodiment, the package comprises a sealed mechanical connection between the glass of the bottle and the heat exchanger

Selon un mode de réalisation, la liaison étanche comprend un scellement du verre de la bouteille avec un revêtement de protection de l'échangeur thermique.According to one embodiment, the sealed connection comprises sealing the glass of the bottle with a protective coating of the heat exchanger.

Selon un mode de réalisation, l'emballage comprend une liaison mécanique et un joint d'étanchéité entre le verre de la bouteille et l'échangeur thermique.According to one embodiment, the package comprises a mechanical connection and a seal between the glass of the bottle and the heat exchanger.

Selon un mode de réalisation, la liaison mécanique est constituée par une rentrée de métal du fond dans une gorge de la paroi de la bouteille.According to one embodiment, the mechanical connection is constituted by a return of metal from the bottom in a groove of the wall of the bottle.

Selon un mode de réalisation, la liaison mécanique est constituée par un vissage de l'échangeur thermique sur la paroi en verre de la bouteille.According to one embodiment, the mechanical connection is constituted by a screwing of the heat exchanger on the glass wall of the bottle.

Selon un mode de réalisation, le joint d'étanchéité est un joint torique disposé dans une gorge de la paroi de la bouteille.According to one embodiment, the seal is an O-ring disposed in a groove of the wall of the bottle.

Selon un mode de réalisation, le joint d'étanchéité est un joint plat disposé sur la tranche de la paroi de la bouteille.According to one embodiment, the seal is a flat seal disposed on the edge of the wall of the bottle.

Selon une caractéristique, une boîte contenant la troisième cavité est assemblée à la bouteille par brassage sur la prolongation de l'échangeur thermique.According to one characteristic, a box containing the third cavity is assembled to the bottle by stirring on the extension of the heat exchanger.

L'invention concerne aussi un procédé de fabrication d'un emballage auto-réfrigérant comprenant les étapes consistant à :

  • fournir une bouteille en verre sans fond ;
  • assembler une paroi métallique formant un échangeur thermique aux parois de la bouteille pour constituer un fond de bouteilles, ledit échangeur thermique présentant une prolongation s'étendant sur une portion de la paroi externe de la bouteille ;
  • assembler une boîte contenant des moyens de pompage par adsorption à l'échangeur thermique de la bouteille, un couvercle de la boîte d'adsorbant et l'échangeur thermique de la bouteille délimitant un évaporateur.
The invention also relates to a method of manufacturing a self-cooling package comprising the steps of:
  • provide a bottomless glass bottle;
  • assembling a metal wall forming a heat exchanger to the walls of the bottle to form a bottom of bottles, said heat exchanger having an extension extending over a portion of the outer wall of the bottle;
  • assemble a box containing adsorption pumping means to the heat exchanger of the bottle, a lid of the box adsorbent and the heat exchanger of the bottle defining an evaporator.

Selon un mode de réalisation, l'étape d'assemblage de l'échangeur thermique avec le verre de la bouteille est réalisée par scellement du verre de la bouteille avec un revêtement de protection de l'échangeur thermique.According to one embodiment, the step of assembling the heat exchanger with the glass of the bottle is performed by sealing the glass of the bottle with a protective coating of the heat exchanger.

Selon un mode de réalisation, l'étape d'assemblage de l'échangeur thermique avec le verre de la bouteille comprend les étapes consistant à visser l'échangeur thermique sur la paroi en verre de la bouteille et placer un joint d'étanchéité entre le verre de la bouteille et l'échangeur thermique.According to one embodiment, the step of assembling the heat exchanger with the glass of the bottle comprises the steps of screwing the heat exchanger onto the glass wall of the bottle and placing a seal between the glass of the bottle and the heat exchanger.

Selon un mode de réalisation, l'étape d'assemblage de l'échangeur thermique avec le verre de la bouteille comprend les étapes consistant à repousser le métal de l'échangeur thermique dans une gorge de la paroi en verre de la bouteille et placer un joint d'étanchéité entre le verre de la bouteille et l'échangeur thermique.According to one embodiment, the step of assembling the heat exchanger with the glass of the bottle comprises the steps of pushing the metal of the heat exchanger in a groove of the glass wall of the bottle and place a seal between the glass of the bottle and the heat exchanger.

Selon les modes de réalisation, la boîte d'adsorbant est assemblée à l'échangeur thermique avant ou après assemblage de l'échangeur thermique à la bouteille.According to the embodiments, the adsorbent box is assembled to the heat exchanger before or after assembling the heat exchanger to the bottle.

Selon un mode de réalisation, la boîte d'adsorbant est assemblée à l'échangeur thermique par brasage.According to one embodiment, the adsorbent box is assembled to the heat exchanger by soldering.

L'invention concerne en outre un ensemble auto-réfrigérant comprenant :

  • un emballage auto-réfrigérant selon l'invention ;
  • un support comprenant une cheminée adaptée à recevoir la tête de la bouteille.
The invention further relates to a self-cooling assembly comprising:
  • a self-cooling package according to the invention;
  • a support comprising a chimney adapted to receive the head of the bottle.

Selon un mode de réalisation, le support comprend en outre au moins un bossage sur lequel un verre retourné peut être enfilé.According to one embodiment, the support further comprises at least one boss on which an inverted glass can be threaded.

Selon un mode de réalisation, au moins deux verres à pied sont disposés sur le support, les pieds étant conformés de manière à appuyer deux arcs opposés de la bouteille.According to one embodiment, at least two stem glasses are arranged on the support, the feet being shaped so as to support two opposite arcs of the bottle.

Les particularités et avantages de la présente invention apparaîtront au cours de la description qui suit donnée à titre d'exemple illustratif et non limitatif, et faite en référence aux figures qui montrent :

  • figure 1, un schéma d'un emballage auto-réfrigérant selon l'invention ;
  • figure 2, un schéma de l'assemblage d'une bouteille avec un échangeur thermique selon un premier mode de réalisation ;
  • figure 3, un schéma de l'assemblage d'une bouteille avec un échangeur thermique selon un deuxième mode de réalisation ;
  • figure 4, un schéma de l'assemblage d'une bouteille avec un échangeur thermique selon une variante du deuxième mode de réalisation ;
  • figure 5, un schéma de l'assemblage d'une bouteille avec un échangeur thermique selon un troisième mode de réalisation ;
  • figure 6, un schéma de l'emballage auto-réfrigérant sur un support pour la mise en oeuvre du refroidissement ;
  • figures 7a et 7b, un schéma d'une variante du support de la figure 6.
The features and advantages of the present invention will become apparent from the following description given by way of illustrative and non-limiting example, and with reference to the figures which show:
  • figure 1 a diagram of a self-cooling package according to the invention;
  • figure 2 , a diagram of the assembly of a bottle with a heat exchanger according to a first embodiment;
  • figure 3 , a diagram of the assembly of a bottle with a heat exchanger according to a second embodiment;
  • figure 4 , a diagram of the assembly of a bottle with a heat exchanger according to a variant of the second embodiment;
  • figure 5 , a diagram of the assembly of a bottle with a heat exchanger according to a third embodiment;
  • figure 6 a diagram of the self-cooling package on a support for carrying out the cooling;
  • Figures 7a and 7b , a diagram of a variant of the support of the figure 6 .

L'emballage auto-réfrigérant selon l'invention est décrit en référence à la figure 1.The self-cooling package according to the invention is described with reference to the figure 1 .

L'emballage auto-réfrigérant selon l'invention comporte une bouteille en verre 1 constituant une première cavité 10 contenant une boisson de consommation à refroidir, par exemple du vin ou du champagne, et une seconde cavité 20 formant un évaporateur. La première 10 et la seconde 20 cavités ont une paroi commune métallique 15 qui constitue un échangeur thermique, cette paroi 15 formant le fond de la bouteille 1. En particulier, l'échangeur thermique métallique 15 est raccordé directement à la paroi en verre de la bouteille. L'échangeur thermique 15 présente avantageusement une forme conique avec des nervures afin de favoriser l'échange de chaleur par convexion dans la première cavité 10.The self-cooling package according to the invention comprises a glass bottle 1 constituting a first cavity 10 containing a drinking drink to be cooled, for example wine or champagne, and a second cavity 20 forming an evaporator. The first 10 and the second 20 cavities have a metal common wall 15 which constitutes a heat exchanger, this wall 15 forming the bottom of the bottle 1. In particular, the metal heat exchanger 15 is connected directly to the glass wall of the bottle. The heat exchanger 15 advantageously has a conical shape with ribs in order to promote the heat exchange by convection in the first cavity 10.

L'emballage comporte également une boîte 31 métallique délimitant une troisième cavité 30 contenant des moyens de pompage par adsorption de la vapeur d'un liquide réfrigérant contenu dans la deuxième cavité 20. La deuxième cavité 20 contient le liquide réfrigérant et ses vapeurs. La pression dans la deuxième cavité avant le déclenchement de la réaction d'évaporation est d'environ 30 mbar à 23°C lorsque le liquide réfrigérant est de l'eau. Pour garantir une bonne efficacité de pompage par l'adsorbant, il est nécessaire que la boîte d'adsorbant 31 soit assemblée et fermée sous vide, avec un vide inférieur à 1 mbar et préférentiellement inférieur à 0.1 mbar. En effet, la réaction de refroidissement est initiée par une dépression lorsque l'évaporateur (la deuxième cavité) est mis en communication avec une zone de plus forte dépression (la troisième cavité). Cette réaction de refroidissement est ensuite entretenue par pompage des vapeurs du liquide réfrigérant par l'adsorbant, par exemple un dessicant, depuis la deuxième cavité 20 vers la troisième cavité 30.The package also comprises a metal box 31 delimiting a third cavity 30 containing pumping means by adsorption of the vapor of a refrigerant liquid contained in the second cavity 20. The second cavity 20 contains the coolant and its vapors. The pressure in the second cavity before the onset of the evaporation reaction is about 30 mbar at 23 ° C when the coolant is water. To ensure good pumping efficiency by the adsorbent, it is necessary that the adsorbent box 31 is assembled and closed under vacuum, with a vacuum of less than 1 mbar and preferably less than 0.1 mbar. Indeed, the cooling reaction is initiated by a depression when the evaporator (the second cavity) is placed in communication with a zone of greater depression (the third cavity). This cooling reaction is then maintained by pumping the vapors of the refrigerant liquid through the adsorbent, for example a desiccant, from the second cavity 20 to the third cavity 30.

L'emballage comporte en outre des moyens de déclenchement de la réaction de refroidissement. Cette réaction est déclenchée par la mise en communication des deuxième 20 et troisième 30 cavités, provoquant ainsi l'évaporation du liquide réfrigérant de la deuxième cavité 20 dont la vapeur est pompée par un dessicant contenu dans la troisième cavité 30. Ainsi, l'emballage comporte des moyens de mise en communication 40 de la seconde cavité 20 avec la troisième cavité 30 intégrés dans une paroi commune 25 aux dites cavités. Cette paroi commune 25 constitue un couvercle de la boîte 31 d'adsorbant.The packaging further comprises means for triggering the cooling reaction. This reaction is triggered by placing in communication the second 20 and third cavities, thus causing the evaporation of the refrigerant liquid from the second cavity 20, the vapor of which is pumped by a desiccant contained in the third cavity 30. Thus, the packaging comprises communication means 40 of the second cavity 20 with the third cavity 30 integrated in a common wall 25 to said cavities. This common wall 25 constitutes a lid of the adsorbent box 31.

Les moyens de mises en communication 40 peuvent être constitués par un clapet anti-retour obturant une ouverture dans la paroi commune 25 des deuxième et troisième cavités. Ce clapet a la particularité de ne pouvoir s'ouvrir que vers l'extérieur de la cavité d'adsorption 30, c'est à dire vers l'intérieur de la cavité d'évaporation 20. La réaction de refroidissement est déclenchée par le déplacement du clapet vers l'intérieur de la deuxième cavité 20. Le clapet anti-retour est actionné par une tige poussoir 45 transmettant un déplacement d'au moins une portion de la paroi 35 de la boîte 31 d'adsorbant opposée à la paroi 25 comportant les moyens de mise en communication 40. De tels moyens de mise en communication 40 sont décrits dans la demande de brevet WO 03/0730019 du demandeur.The communication means 40 may be constituted by a non-return valve closing an opening in the common wall 25 of the second and third cavities. This valve has the particularity of being able to open only towards the outside of the adsorption cavity 30, ie towards the inside of the evaporation cavity 20. The cooling reaction is triggered by the displacement of the valve towards the inside of the second cavity 20. The non-return valve is actuated by a push rod 45 transmitting a displacement of at least a portion of the wall 35 of the adsorbent box 31 opposite the wall 25 comprising the communication establishment means 40. Such communication establishment means 40 are described in the patent application. WO 03/0730019 the applicant.

L'emballage selon l'invention présente donc une bouteille 1 dont le fond 15 est constitué d'une paroi métallique formant échangeur thermique. Le fond métallique 15 de la bouteille 1 doit répondre aux mêmes critères alimentaires que le verre de la bouteille. L'utilisation d'une bouteille en verre est justifiée par la nature du produit à réfrigérer, en particulier pour des boissons telles que du vin ou du champagne. Le fond métallique 15 doit donc présenter un revêtement de protection alimentaire 16 sur sa face interne à la première cavité 10. Ce revêtement ne doit pas constituer une barrière thermique au refroidissement de la boisson. Un tel revêtement peut comporter de la silice ou de l'émail. Le revêtement peut également être constitué par un dépôt en couches minces d'un matériau qualifié pour le contact alimentaire, tel que du CrN par exemple. Le dépôt couche mince peut être réalisé par dépôt sous vide PVD, dépôt chimique CVD à basse pression ou assisté par plasma, dépôt électrochimique ou dépôt par pulvérisation suivi d'une cuisson, en particulier avec des produits de type époxy. Il est entendu que tout autre dépôt qualifié pour le contact alimentaire, en particulier pour des boissons alcoolisées, peut convenir comme revêtement du fond métallique 15 dans le cadre de l'invention. Le revêtement 16 présente une faible épaisseur, de l'ordre de quelques microns à quelques dixièmes de millimètre. Il est illustré grossi sur la figure 2 et omi sur les autres figures.The packaging according to the invention therefore has a bottle 1 whose bottom 15 consists of a metal wall forming a heat exchanger. The metal bottom 15 of the bottle 1 must meet the same food criteria as the glass of the bottle. The use of a glass bottle is justified by the nature of the product to be refrigerated, in particular for beverages such as wine or champagne. The metal base 15 must therefore have a food protection coating 16 on its internal face to the first cavity 10. This coating must not constitute a thermal barrier to the cooling of the beverage. Such a coating may comprise silica or enamel. The coating may also be constituted by a thin layer deposition of a material qualified for food contact, such as CrN for example. Thin film deposition can be achieved by PVD vacuum deposition, CVD chemical deposition at low pressure or plasma assisted, electrochemical deposition or spray deposition followed by curing, particularly with epoxy products. It is understood that any other deposit qualified for food contact, in particular for alcoholic beverages, may be suitable as a metal bottom coating in the context of the invention. The coating 16 has a low thickness, of the order of a few microns to a few tenths of a millimeter. It is illustrated magnified on the figure 2 and omi in the other figures.

De plus, l'assemblage d'une bouteille en verre 1 avec un fond en métal 15 doit répondre principalement à deux contraintes. D'une part, l'assemblage doit présenter une tenue mécanique aux fortes pressions, soit plus de 7 bars lorsque du champagne est contenu dans la bouteille 1, et d'autre part, l'assemblage doit présenter une bonne étanchéité à ces pressions.In addition, the assembly of a glass bottle 1 with a metal bottom 15 must respond mainly to two constraints. On the one hand, the assembly must have a mechanical strength at high pressures, more than 7 bars when champagne is contained in the bottle 1, and secondly, the assembly must have a good seal at these pressures.

Selon un premier mode de réalisation, illustré sur la figure 2, l'assemblage entre la bouteille en verre 1 et l'échangeur thermique 15 peut présenter une liaison mécanique étanche 17 qui répond ainsi simultanément aux deux contraintes précitées. Une telle liaison 17 peut comprendre un scellement du revêtement de protection 16 de l'échangeur thermique 15 avec le verre de la bouteille 1. Un tel scellement peut par exemple être obtenu pour un revêtement 16 en émail par un passage à haute température tel que cela sera explicité plus loin.According to a first embodiment, illustrated on the figure 2 , the assembly between the glass bottle 1 and the heat exchanger 15 may have a sealed mechanical connection 17 which thus simultaneously meets the two aforementioned constraints. Such a connection 17 may comprise a sealing of the protective coating 16 of the heat exchanger 15 with the glass of the bottle 1. Such a seal may for example be obtained for an enamel coating 16 by a passage at high temperature such that this will be explained later.

L'échangeur thermique 15 peut présenter une prolongation 22 s'étendant sur une portion de la paroi externe en verre de la bouteille 1. La paroi métallique 15 enserre donc le fond de la bouteille. La liaison mécanique étanche 17 est alors située sur le pourtour externe de cul de la bouteille, entre le verre de la bouteille 1 et la prolongation 22 de l'échangeur thermique 15. Avec une telle géométrie, la prolongation métallique 22 met le verre de la bouteille 1 localement en compression lors du refroidissement de l'emballage après assemblage, puisque le métal se dilate davantage que le verre lors du passage à haute température. L'étanchéité et la tenue mécanique en sont améliorées. La prolongation métallique 22 du fond 15 sur la paroi externe de la bouteille 1 permet en outre un assemblage de la boîte d'adsorbant 31 avec le fond de la bouteille, comme cela sera expliqué plus loin.The heat exchanger 15 may have an extension 22 extending over a portion of the outer glass wall of the bottle 1. The metal wall 15 thus encloses the bottom of the bottle. The sealed mechanical connection 17 is then located on the outer periphery of bottom of the bottle, between the glass of the bottle 1 and the extension 22 of the heat exchanger 15. With such a geometry, the metal extension 22 puts the glass of the bottle 1 locally in compression during the cooling of the package after assembly, since the metal expands more than the glass during the transition to high temperature. The seal and the mechanical strength are improved. The metal extension 22 of the bottom 15 on the outer wall of the bottle 1 further allows an assembly of the adsorbent box 31 with the bottom of the bottle, as will be explained later.

Selon un deuxième mode de réalisation, illustré sur la figure 3, l'assemblage entre la bouteille en verre 1 et l'échangeur thermique 15 peut présenter une liaison mécanique 18 associée à un joint d'étanchéité 19 pour répondre aux deux contraintes d'assemblage précitées. Une telle liaison mécanique 18 peut être constituée par une rentrée de métal du fond 15 dans une gorge 14 de la paroi de la bouteille 1. Comme dans le premier mode de réalisation, l'échangeur thermique 15 peut présenter une prolongation 22 s'étendant sur une portion de la paroi externe en verre de la bouteille 1 pour enserrer le fond de la bouteille et permettre un assemblage de la boîte d'adsorbant 31 avec le fond de la bouteille. Du métal de la prolongation 22 du fond 15 peut être repoussé à l'aide d'une molette dans une gorge 14 moulée dans la paroi externe de la bouteille 1.According to a second embodiment, illustrated on the figure 3 , the assembly between the glass bottle 1 and the heat exchanger 15 may have a mechanical connection 18 associated with a seal 19 to meet the two aforementioned assembly constraints. Such a mechanical connection 18 may be constituted by a metal recess of the bottom 15 in a groove 14 of the wall of the bottle 1. As in the first embodiment, the heat exchanger 15 may have an extension 22 extending over a portion of the outer glass wall of the bottle 1 to enclose the bottom of the bottle and allow an assembly of the adsorbent box 31 with the bottom of the bottle. Metal of the extension 22 of the bottom 15 can be pushed back by means of a knob into a groove 14 molded into the outer wall of the bottle 1.

Le joint d'étanchéité 19 peut être un joint torique en élastomère disposé dans une gorge 13 de la paroi de la bouteille 1. La gorge 13 contenant le joint d'étanchéité 19 est de préférence située sous la gorge 14 de liaison mécanique. Le joint 19 est ainsi comprimé dans la gorge 13 par la prolongation 22 du fond 15. Selon une variante de réalisation illustrée sur la figure 4, le joint d'étanchéité torique 19 peut aussi être disposé dans la même gorge 14 de liaison mécanique, juste en dessous du retour de métal 18 assurant la liaison mécanique. La hauteur de la gorge 14 doit être suffisante pour permettre de rentrer le joint 19 et le retour de métal 18 et relativement petite pour que le joint 19 soit comprimé lorsque la prolongation 22 de l'échangeur thermique 15 est repoussé dans la gorge 14 de la bouteille 1.The seal 19 may be an elastomer o-ring disposed in a groove 13 of the wall of the bottle 1. The groove 13 containing the seal 19 is preferably located under the groove 14 mechanical connection. The seal 19 is thus compressed in the groove 13 by the extension 22 of the bottom 15. According to an alternative embodiment illustrated on the figure 4 the O-ring 19 may also be disposed in the same mechanical connection groove 14 just below the metal return 18 providing the mechanical connection. The height of the groove 14 must be sufficient to allow the seal 19 and the metal return 18 to return and relatively small so that the seal 19 is compressed when the extension 22 of the heat exchanger 15 is pushed back into the groove 14 of the bottle 1.

Selon un troisième mode de réalisation, illustré sur la figure 5, la liaison mécanique 21 peut être constituée par un vissage de l'échangeur thermique 15 sur la paroi en verre de la bouteille 1. Un filetage peut être moulé dans la paroi externe de la bouteille 1 et un filetage complémentaire peut être réalisé sur la paroi interne de la prolongation 22 de l'échangeur thermique 15.According to a third embodiment, illustrated on the figure 5 , the mechanical connection 21 may be constituted by a screwing of the heat exchanger 15 on the glass wall of the bottle 1. A thread may be molded in the outer wall of the bottle 1 and a complementary thread may be formed on the wall internal of the extension 22 of the heat exchanger 15.

Sur le mode de réalisation de la figure 5, le joint d'étanchéité 19 est un joint plat disposé sur la tranche de la paroi de la bouteille 1. Le joint plat 19 est comprimé lorsque l'échangeur thermique 15 est vissé sur la paroi externe de la bouteille 1. Il est cependant entendu qu'un tel joint plat 19 peut être utilisé dans les modes de réalisation des figures 3 et 4, le joint plat 19 étant comprimé lorsque du métal 18 est repoussé dans la gorge 14, rehaussant légèrement l'échangeur thermique 15 vers le haut de la bouteille 1. De même, un joint torique 19 peut être utilisé dans le mode de réalisation illustré sur la figure 5, le joint torique 19 étant alors placé dans une gorge 13 en dessous du filetage 21 de la paroi de la bouteille et comprimé lors du vissage du fond 15.On the embodiment of the figure 5 , the seal 19 is a flat gasket disposed on the edge of the wall of the bottle 1. The flat gasket 19 is compressed when the heat exchanger 15 is screwed onto the outer wall of the bottle 1. It is nevertheless understood that such a flat gasket 19 can be used in the embodiments of the Figures 3 and 4 , the flat gasket 19 being compressed when metal 18 is pushed back into the groove 14, slightly raising the heat exchanger 15 towards the top of the bottle 1. Likewise, an O-ring 19 may be used in the embodiment illustrated in FIG. the figure 5 , the O-ring 19 then being placed in a groove 13 below the thread 21 of the wall of the bottle and compressed during the screwing of the bottom 15.

Quel que soit le mode de réalisation choisi pour l'assemblage d'une bouteille en verre 1 avec un fond en métal 15, les contraintes de tenue mécanique aux fortes pressions et de bonne étanchéité sont respectées avec une conception simple et peu coûteuse. En effet, l'assemblage de l'emballage selon l'invention ne nécessite aucune pièce intermédiaire entre l'échange thermique 15 et la bouteille 1.Whatever the embodiment chosen for the assembly of a glass bottle 1 with a metal bottom 15, the mechanical strength constraints at high pressures and good sealing are met with a simple and inexpensive design. Indeed, the assembly of the packaging according to the invention does not require any intermediate part between the heat exchange 15 and the bottle 1.

L'emballage selon l'invention peut être fabriqué de la manière suivante.The package according to the invention can be manufactured in the following manner.

Une bouteille en verre 1 est réalisée sans fond à partir d'un moule adaptée. Une telle bouteille 1 peut présenter des parois latérales plus ou moins évasées selon les applications envisagées, c'est-à-dire selon le produit à refroidir, afin que la bouteille auto-réfrigérante ait globalement une forme similaire aux bouteilles classique contenant le même produit.A glass bottle 1 is made without bottom from a suitable mold. Such a bottle 1 may have side walls more or less flared depending on the intended applications, that is to say, depending on the product to be cooled, so that the self-cooling bottle has overall a shape similar to conventional bottles containing the same product .

Une paroi métallique 15 est assemblée aux parois en verre de la bouteille pour constituer un fond de bouteille. La paroi métallique 15 servant d'échangeur thermique peut préalablement être conformée en forme de cône de manière à créer des courants de convexion dans la boisson à refroidir. Les effets des courants de convexion sont explicités dans la demande EP-A-1 444 938 du demandeur.A metal wall 15 is joined to the glass walls of the bottle to form a bottle bottom. The metal wall 15 serving as a heat exchanger may previously be shaped conically so as to create convection currents in the beverage to be cooled. The effects of convection currents are explained in the application EP-A-1 444 938 the applicant.

Une boîte 31 contenant des moyens de pompage par adsorption est assemblée au fond métallique 15 de la bouteille 1. Cette boîte 31 est de préférence métallique et comporte un couvercle 25 qui avec le fond métallique 15 de la bouteille 1 délimite un évaporateur 20.A box 31 containing adsorption pumping means is connected to the metal bottom 15 of the bottle 1. This box 31 is preferably metallic and has a lid 25 which with the metal base 15 of the bottle 1 delimits an evaporator 20.

Un liquide réfrigérant est préalablement disposé dans l'évaporateur 20, par exemple en plaçant un glaçon dans le creux du fond métallique 15 avant de refermer la cavité 20 par le couvercle 25 de la boîte 31. Un tel procédé est décrit dans la demande de brevet EP-A-1 290 387 du demandeur. Les moyens d'adsorption contenu dans la cavité 30 délimitée par la boîte 31 peuvent être constitués d'un bloc d'adsorbant conformé comme décrit dans la demande de brevet EP-A-1 297 287 du demandeur. La boîte d'adsorbant 31 peut également contenir les moyens d'activations préalablement décrits avec le clapet 40 disposé fermé sur le couvercle 25 de la boîte 31. Un tel assemblage est décrit dans la demande WO 03/073019 précitée.A cooling liquid is previously arranged in the evaporator 20, for example by placing an ice cube in the hollow of the metal base 15 before closing the cavity 20 by the cover 25 of the box 31. Such a method is described in the patent application EP-A-1,290,387 the applicant. The adsorption means contained in the cavity 30 delimited by the box 31 may consist of an adsorbent block shaped as described in the patent application. EP-A-1,297,287 the applicant. The adsorbent box 31 may also contain the activation means previously described with the valve 40 arranged closed on the cover 25 of the box 31. Such an assembly is described in the application WO 03/073019 supra.

Selon un premier mode de réalisation, l'assemblage de l'échangeur thermique 15 avec le verre de la bouteille 1 peut être réalisé par scellement entre le revêtement de protection 16 du fond métallique 15 avec le verre de la bouteille 1, en chauffant la zone où la prolongation 22 de l'échangeur thermique 15 s'étend sur la paroi externe de la bouteille 1. Un traitement thermique de l'ordre de 800 à 900°C entraîne un ramollissement du verre de la bouteille et du revêtement qui se lient alors l'un à l'autre. Il est également possible de mouler directement la bouteille 1 sur l'échangeur thermique 15 préalablement revêtu. Le fond peut être intégré dans le moule servant à fabriquer la bouteille. Le verre en fusion est alors directement scellé sur le fond 15 à son refroidissement.According to a first embodiment, the assembly of the heat exchanger 15 with the glass of the bottle 1 can be achieved by sealing between the protective coating 16 of the metal base 15 with the glass of the bottle 1, by heating the zone. where the extension 22 of the heat exchanger 15 extends on the outer wall of the bottle 1. A heat treatment of the order of 800 to 900 ° C causes a softening of the glass of the bottle and the coating which then binds to one another. It is also possible to directly mold the bottle 1 on the heat exchanger 15 previously coated. The bottom can be integrated into the mold used to make the bottle. The molten glass is then directly sealed to the bottom 15 on cooling.

On a alors d'une part la bouteille en verre 1 avec son fond métallique 15 et d'autre part la boîte d'adsorbant 31 avec son couvercle 25. La boîte d'adsorbant 31 peut présenter des parois latérales qui s'étendent au-delà du couvercle 25 pour constituer une collerette 32 qui peut venir entourer la prolongation 22 de l'échangeur thermique 15 autour de la bouteille 1. La face externe de l'échangeur thermique 15 n'est pas couverte d'un revêtement de protection comme la face interne. La collerette 32 de la boîte 31 peut alors être assemblée au fond 15 de la bouteille par brasage sur la prolongation latérale 22 du fond 15. Une méthode d'assemblage par brasage appropriée est décrite dans la demande WO 03/072289 du demandeur.The glass bottle 1 with its metal bottom 15 and the adsorbent box 31 with its lid 25 are then on the one hand. The adsorbent box 31 may have sidewalls that extend beyond the cover 25 to form a collar 32 which can surround the extension 22 of the heat exchanger 15 around the bottle 1. The outer face of the heat exchanger 15 is not covered with a protective coating such as the internal face. The flange 32 of the box 31 can then be assembled at the bottom 15 of the bottle by brazing on the lateral extension 22 of the bottom 15. A method of assembly by suitable brazing is described in the application WO 03/072289 the applicant.

Selon un deuxième mode de réalisation, l'assemblage de la paroi métallique 15 avec le verre de la bouteille 1 peut être réalisé par vissage de l'échangeur thermique 15 sur la paroi en verre de la bouteille 1 en disposant préalablement un joint d'étanchéité 19 entre le verre de la bouteille 1 et l'échangeur thermique 15. Un point de colle peut éventuellement être ajouté au filetage lors de l'assemblage de l'échangeur thermique à la bouteille pour éviter tout dévissage.According to a second embodiment, the assembly of the metal wall 15 with the glass of the bottle 1 can be achieved by screwing the heat exchanger 15 onto the glass wall of the bottle 1 by first providing a seal 19 between the glass of the bottle 1 and the heat exchanger 15. A dot of glue may optionally be added to the thread during assembly of the heat exchanger to the bottle to prevent unscrewing.

Selon un troisième mode de réalisation, l'assemblage de la paroi métallique 15 avec le verre de la bouteille 1 peut être réaliser en repoussant, par exemple avec une molette, du métal de l'échangeur thermique 15 dans une gorge 14 de la paroi en verre de la bouteille 1 en disposant préalablement un joint d'étanchéité 19 entre le verre de la bouteille 1 et l'échangeur thermique 15.According to a third embodiment, the assembly of the metal wall 15 with the glass of the bottle 1 can be achieved by pushing, for example with a wheel, the metal of the heat exchanger 15 into a groove 14 of the wall. glass of the bottle 1 by previously arranging a seal 19 between the glass of the bottle 1 and the heat exchanger 15.

Dans le cas des deuxième et troisième modes de réalisation, il est préférable d'assembler d'abord la boîte d'adsorbant 31 avec l'échangeur thermique 15, puis d'assembler le tout dans le fond de la bouteille en verre. En effet, la présence du joint d'étanchéité 19 ne permet pas de braser la boite d'adsorbant 31 avec le fond 15 si ce dernier est déjà fixé à la bouteille en verre ; le joint 19 en élastomère étant endommagé par les températures de brassage.In the case of the second and third embodiments, it is preferable to first assemble the adsorbent box 31 with the heat exchanger 15, then assemble the whole into the bottom of the glass bottle. Indeed, the presence of the seal 19 does not allow soldering the adsorbent box 31 with the bottom 15 if the latter is already attached to the glass bottle; the elastomer seal 19 being damaged by the stirring temperatures.

Pour ces modes de réalisation, on fournit donc une boîte d'adsorbant 31 avec un couvercle 25 et une collerette 32 et on forme l'évaporateur 20 en assemblant une paroi 15 conformée en cône sur la collerette 32, en ayant préalablement placé le liquide réfrigérant entre le couvercle 25 et la paroi 15. La paroi métallique 15 avec la boîte 31 solidaire peut alors être assemblée dans le fond de la bouteille selon l'un des deuxième ou troisième modes de réalisation précités.For these embodiments, an adsorbent box 31 with a lid 25 and a flange 32 is thus provided and the evaporator 20 is formed by assembling a cone-shaped wall 15 on the flange 32, having previously placed the cooling liquid between the cover 25 and the wall 15. The metal wall 15 with the box 31 integral can then be assembled in the bottom of the bottle according to one of the second or third embodiments mentioned above.

L'emballage auto-réfrigérant selon l'invention s'utilise de la manière suivante.The self-cooling package according to the invention is used in the following manner.

Le refroidissement du contenu de la bouteille en verre 1 est provoqué par la mise en communication des deuxième 20 et troisième 30 cavités comme exposé précédemment. Cette mise en communication peut se faire par actionnement d'un bouton poussoir 35 enfonçant la tige 45 pour soulever le clapet 40 de manière à ouvrir une voie de pompage des vapeurs du liquide réfrigérant depuis la deuxième cavité d'évaporateur 20 vers la troisième cavité d'adsorbant 30. L'établissement de courants de convexion dans la première cavité de la bouteille 10 est favorisé lorsque le refroidissement de l'emballage est actionné avec le cône de l'échangeur thermique 15 orienté vers le bas. En outre, cette disposition de l'emballage évite que du liquide réfrigérant s'écoule dans la boîte d'adsorbant 31, seule la vapeur du liquide réfrigérant devant être pompée.The cooling of the contents of the glass bottle 1 is caused by the communication of the second 20 and third cavities as previously discussed. This communication can be done by operating a push button 35 pushing the rod 45 to lift the valve 40 so as to open a pumping path of the coolant vapors from the second evaporator cavity 20 to the third cavity d Adsorber 30. The establishment of convection currents in the first cavity of the bottle 10 is favored when the cooling of the package is actuated with the cone of the heat exchanger 15 facing downwards. In addition, this arrangement of the package prevents coolant flowing in the adsorbent box 31, only the vapor of the coolant to be pumped.

Dans le cas particulier d'une bouteille auto-réfrigérante, la disposition du cône orienté vers le bas nécessiterait de faire tenir la bouteille sur son bouchon ou de la tenir tête en bas à la main. Cette disposition n'est pas stable ou est contraignante pour le consommateur. Pour maintenir la bouteille auto-réfrigérante dans cette position renversée, on peut la conserver totalement ou partiellement dans une boîte servant d'emballage commercial à la bouteille.In the particular case of a self-cooling bottle, the arrangement of the cone facing downwards would require to hold the bottle on its cap or to hold it upside down by hand. This provision is not stable or is binding on the consumer. To keep the self-cooling bottle in this reversed position, it can be kept totally or partially in a box used as a commercial packaging for the bottle.

La figure 6 illustre un autre mode de maintien de la bouteille renversée. Un support associé à l'emballage selon l'invention permet de maintenir la bouteille dans cette position tête en bas pendant la durée du refroidissement, soit environ 2 à 5 minutes. Un tel support 100 peut être en carton ou un plastique et présente une cheminée 110 dans laquelle la tête de la bouteille 1, bouchon et goulot, vient s'insérer. Cette cheminée est suffisamment profonde et rigide pour maintenir la bouteille verticale tête en bas pendant la durée requise. Une fois le refroidissement terminé, la bouteille 1 peut être saisie, retournée et ouverte pour dégustation.The figure 6 illustrates another way of keeping the bottle upside down. A carrier associated with the packaging according to the invention keeps the bottle in this upside down position during the cooling period, ie about 2 to 5 minutes. Such a support 100 may be in cardboard or plastic and has a chimney 110 in which the head of the bottle 1, cap and neck, is inserted. This chimney is deep enough and rigid to hold the bottle upside down for the required time. Once the cooling is completed, the bottle 1 can be seized, turned over and opened for tasting.

Les figures 7a et 7b illustrent une variante de réalisation du support 100. En plus de la cheminée 110 recevant la tête de la bouteille 1, le support 100 présente deux bossages 115 (figure 7a) sur lesquels deux verres 150 retournés peuvent s'enfiler (figure 7b). Un seul bossage 115 peut être prévu tout comme plus de deux bossages 115 peuvent être agencés sur le support 100. Les verres 150 peuvent être à pied, et les pieds conformés chacun en croissant pour appuyer deux arcs opposés de la bouteille 1. Le maintient latéral de la bouteille est ainsi améliorée pendant le refroidissement. Le support est de préférence carré ou rectangulaire pour correspondre au fond d'une boîte dans laquelle l'emballage auto-réfrigérant serait vendu.The Figures 7a and 7b illustrate an alternative embodiment of the support 100. In addition to the chimney 110 receiving the head of the bottle 1, the support 100 has two bosses 115 ( figure 7a ) on which two 150 glasses returned can be slipped ( figure 7b ). A single boss 115 may be provided as more than two bosses 115 may be arranged on the support 100. The glasses 150 may be on foot, and the respective shaped feet crescent to support two opposite arcs of the bottle 1. The side maintains of the bottle is thus improved during cooling. The support is preferably square or rectangular to match the bottom of a box in which the self-cooling package would be sold.

Un kit auto-réfrigérant peut ainsi être fourni avec une bouteille associée à un dispositif auto-réfrigérant et deux verres pour consommation après refroidissement du contenu de la bouteille.A self-cooling kit can thus be provided with a bottle associated with a self-cooling device and two glasses for consumption after cooling the contents of the bottle.

Bien entendu, la présente invention n'est pas limitée aux modes de réalisation décrits à titre d'exemple; ainsi, la forme de l'échangeur thermique 15 de la bouteille 1 peut varier du cône illustré pour présenter une forme plus aplatie ou plus pointue, ou toute autre forme.Of course, the present invention is not limited to the embodiments described by way of example; thus, the shape of the heat exchanger 15 of the bottle 1 may vary from the illustrated cone to present a more flattened or pointed shape, or any other shape.

Claims (22)

  1. A self-cooling packaging item comprising:
    - a glass bottle (1) constituting a first cavity (10) containing a product to be cooled;
    - a second cavity (20) forming an evaporator and containing a refrigerating liquid and its vapor;
    - a third cavity (30) containing means for pumping by adsorption of said vapor;
    - means (40) for putting said second and third cavities (20, 30) into communication;
    said first and second cavities (10, 20) having a common metal wall (15) forming a heat exchanger, said heat exchanger (15) constituting the base of the bottle and having an extension (22) extending over a portion of the outer wall of the bottle (1).
  2. The self cooling packaging item according to claim 1, characterized in that the heat exchanger (15) has a food quality protective coating (16) on its face internal to the first cavity (10).
  3. The self-cooling packaging item according to claim 2, characterized in that the protective coating (16) includes silica.
  4. The self-cooling packaging item according to claim 2, characterized in that the protective coating (16) includes enamel.
  5. The self-cooling packaging item according to one of claims 1-4, characterized in that it comprises a sealed mechanical joint (17) between the glass of the bottle (1) and the heat exchanger (IS).
  6. The self-cooling packaging item according to claim 5, characterized in that the sealed joint (17) comprises sealing of the glass of the bottle (1) with a protective coating (16) of the heat exchanger (15).
  7. The self-cooling packaging item according to one of claims 1-4, characterized in that it comprises a mechanical joint (18, 21) and a seal (19) between the glass of the bottle (1) and the heat exchanger (15).
  8. The self-cooling packaging item according to claim 7, characterized in that the mechanical joint (18) is constituted by folding over of the metal of the base (15) into a channel (14) of the wall of the bottle (1).
  9. The self-cooling packaging item according to claim 7, characterized in that the mechanical joint (21) is constituted by screwing the heat exchanger (15) onto the glass wall of the bottle (1).
  10. The self-cooling packaging item according to one of claims 7-9, characterized in that the seal (19) is an O-ring arranged inside a channel (13, 14) of the wall of the bottle (1).
  11. The self-cooling packaging item according to one of claims 7-9, characterized in that the seal (19) is a flat seal arranged on an edge of the wall of the bottle (1).
  12. The self-cooling packaging item according to one of claims I to 11, characterized in that a can (31) containing the third cavity (30) is assembled onto the bottle (1) by brazing onto the extension (22) of the heat exchanger (15).
  13. A method of producing a self cooling packaging item comprising:
    - supplying a glass bottle (1) without a base;
    - assembling a metal wall forming a heat exchanger (15) to the wall of the bottle (1) to constitute a base of said bottle, the said heat exchanger (15) having an extension (22) extending over a portion of the outer wall of the bottle (1).;
    - assembling a can (31) containing means for pumping by adsorption onto the extension (22) of the heat exchanger (15) of the bottle (1), a lid (25) of the can (31) of adsorbent and the heat exchanger (15) of the bottle (1) defining an evaporator (20).
  14. The method of production according to claim 13, characterized in that the step of assembling the heat exchanger (15) to the glass of the bottle (1) is performed by scaling the glass of the bottle (1) to a protective coating (16) of the heat exchanger (15).
  15. The method of production according to claim 13, characterized in that the step of assembling the heat exchanger (15) to the glass of the bottle (1) comprises the steps consisting of screwing the heat exchanger (15) onto a glass wall of the bottle (1) and placing a seal (19) between the glass of the bottle (I) and the heat exchanger(15).
  16. The method of production according to claim 13, characterized in that the step of assembling the heat exchanger (15) to the glass of the bottle (1) comprises the steps consisting in forcing the metal of the heat exchanger (15) into a channel of the glass wall of the bottle (1) and placing a seal (19) between the glass of the bottle (1) and the heat exchanger (15).
  17. The method of production according to claim 14, characterized in that the can (31) of adsorbent is assembled onto the heat exchanger (15) after assembling the heat exchanger (15) onto the bottle (1).
  18. The method of production according to claim 15 or claim 16, characterized in that the can (31) of adsorbent is assembled onto the heat exchanger (15) prior to assembly of the heat exchanger (15) onto the bottle (1).
  19. The method of production according to one of claims 13-18, characterized in that the can (31) of adsorbent is assembled onto the heat exchanger (15) by brazing.
  20. A self-cooling assembly comprising:
    - a self cooling packaging item according to one of claims 1-12;
    - a stand (10U) comprising a hollow stem (110) adapted to receive the head of the bottle (3).
  21. The assembly according to claim 20, characterized in that the stand (100) further comprises at least one boss (115) over which an upside-down glass (150) can be slipped.
  22. The assembly according to claim 21, characterized in that at least two glasses with feet (150) are arranged on the stand (100), the feet being shaped so as to provide support over two arcs on opposite sides of the bottle (1).
EP04292474A 2004-10-18 2004-10-18 Self-cooling bottle Expired - Lifetime EP1647786B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP04292474A EP1647786B1 (en) 2004-10-18 2004-10-18 Self-cooling bottle
DE602004014504T DE602004014504D1 (en) 2004-10-18 2004-10-18 Self-cooling bottle
AT04292474T ATE398757T1 (en) 2004-10-18 2004-10-18 SELF-COOLING BOTTLE
PCT/FR2005/002509 WO2006042934A1 (en) 2004-10-18 2005-10-11 Self-refrigerating bottle
US11/577,397 US20080073358A1 (en) 2004-10-18 2005-10-11 Self-Cooling Bottle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04292474A EP1647786B1 (en) 2004-10-18 2004-10-18 Self-cooling bottle

Publications (2)

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EP1647786A1 EP1647786A1 (en) 2006-04-19
EP1647786B1 true EP1647786B1 (en) 2008-06-18

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US (1) US20080073358A1 (en)
EP (1) EP1647786B1 (en)
AT (1) ATE398757T1 (en)
DE (1) DE602004014504D1 (en)
WO (1) WO2006042934A1 (en)

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WO2006042934A1 (en) 2006-04-27
EP1647786A1 (en) 2006-04-19
US20080073358A1 (en) 2008-03-27
ATE398757T1 (en) 2008-07-15
DE602004014504D1 (en) 2008-07-31

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