WO2008000927A2 - Isothermal bag - Google Patents

Isothermal bag Download PDF

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Publication number
WO2008000927A2
WO2008000927A2 PCT/FR2007/000975 FR2007000975W WO2008000927A2 WO 2008000927 A2 WO2008000927 A2 WO 2008000927A2 FR 2007000975 W FR2007000975 W FR 2007000975W WO 2008000927 A2 WO2008000927 A2 WO 2008000927A2
Authority
WO
WIPO (PCT)
Prior art keywords
bag
bag according
pocket
opening
accumulator
Prior art date
Application number
PCT/FR2007/000975
Other languages
French (fr)
Other versions
WO2008000927A3 (en
Inventor
Gilles Labranque
Vincent Bailleul
Dario Tofani
Luciano Tofani
Original Assignee
Sofrigam
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 Sofrigam filed Critical Sofrigam
Publication of WO2008000927A2 publication Critical patent/WO2008000927A2/en
Publication of WO2008000927A3 publication Critical patent/WO2008000927A3/en

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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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/04—Bags or like containers made of paper and having structural provision for thickness of contents with multiple walls
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3888—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation wrappers or flexible containers, e.g. pouches, bags
    • B65D81/3893—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation wrappers or flexible containers, e.g. pouches, bags formed with double walls, i.e. hollow

Definitions

  • the present invention relates primarily to a device for transporting a fragile product at a temperature allowing its conservation. More particularly, the invention relates to the transport, for example of drugs or more generally of health products, away from excessive heat, especially between a pharmacy or a doctor's office and the home of a doctor. patient. The present invention also relates to a method of transporting such a product. Bags for the transport of frozen products under acceptable conditions, and generally distributed in stores, are not suitable for transporting a box of medication to a positive temperature, for example. Thus, a bag of the prior art used alone would provide only a protection of about 5 minutes, which is generally insufficient for the transport of the drug box between the pharmacy and the patient's home.
  • a cold storage block also does not allow to transport the drug in good conditions. Indeed, a part of the box close to or in contact with the block can be brought to temperatures too cold for the good preservation of the drug, while another part, away from the block, can quickly rise to a temperature too high for good preservation of the drug.
  • the object of the invention is to provide a transport means for maintaining for the content, especially for a drug, a substantially homogeneous temperature for a sufficiently long time.
  • such a device is an insulating bag comprising an external pocket and an internal pocket fixed to each other, said external pocket comprising an opening and a bottom, said bottom being disposed to the opposite said aperture, said pockets defining therebetween, on each side of the inner pocket, a housing for a heat accumulator, the inside of the inner pocket defining a storage area for a contents of the bag, characterized in that the pocket internal comprises holding means for positioning said content at a distance from said bottom of the outer pocket.
  • An opening for the introduction of the contents into the bag is advantageously arranged opposite the bottom.
  • the holding means may be a transverse weld of the inner pocket defining the storage area, said weld being distant from the bottom of the bag.
  • the outer pocket may comprise two walls engaged with each other along the bottom and side edges connecting said bottom to the opening.
  • the walls of the outer bag advantageously comprise a plurality of layers of sheet materials, an outer layer of which preferably has a highly reflective, preferably substantially white or metallized outer surface and an inner layer to form at least one air gap between it and the outer layer.
  • outer layer preferably has a highly reflective, preferably substantially white or metallized outer surface and an inner layer to form at least one air gap between it and the outer layer.
  • outer layer may also comprise an intermediate layer formed of an insulating foam, preferably polyethylene foam, preferably about 1.5 mm thick or more.
  • the outer pocket may further comprise, for closing the heat-transfer-proof bag, a flap or a zipper, preferably of the zip type.
  • the bag may further comprise a heat accumulator intended to be introduced through the opening of the bag, into the housing.
  • This accumulator is advantageously of padded configuration, defining cells, each containing a gel or a liquid, preferably a gel, so that to keep a small thickness relative to its surface, and thus increase its effectiveness.
  • the thickness of each cell is close to or less than 5 mm and the surface density of the cells, that is to say the area of the cells relative to the surface of the accumulator can be between 50 and 60% , in order to obtain a homogeneous distribution of the temperatures around the internal pocket.
  • each cell has a transverse dimension close to 45 mm, and the cells are separated from each other by about 15 mm.
  • the heat accumulator can form a checker of 5 rows of 4 cells.
  • the accumulator may have a thermal capacity close to that of water. Its surface density advantageously of about 1 kg per m 2 .
  • the accumulator may advantageously comprise two opposite walls welded together, each wall comprising two sheets, one made of polyethylene, and the other made of polyethylene terephthalate (PET), the two sheets of polyethylene terephthalate being arranged on either side. polyethylene sheets, the latter being directly welded to one another.
  • Such a bag may be an isothermal postal envelope formed of a bag according to one of the preceding claims.
  • the intermediate layer of insulating foam will have a large thickness, for example about 5mm or more, to ensure a shelf life compatible with transport by mail.
  • a second object of the invention is a method of transporting a product in a bag, characterized in that the product is kept at a distance from the edges of the bag, and in that a heat accumulator is available from and other of the product, said accumulator extending, substantially homogeneously, beyond the product towards the edges.
  • the product is thus centered in the bag, the temperature of the product is maintained substantially uniform.
  • This method can use a bag according to the invention.
  • the heat accumulator can act as a cold accumulator.
  • the process may be used for the transport of a drug.
  • Figure 1 is a perspective view of three-quarter rear of a bag according to the invention, with tearing;
  • FIG. 2 is a schematic front view of the bag of Figure 1;
  • FIG. 3 is a partial view of a heat accumulator used in the embodiment of Figure 1.
  • Figure 1 shows a bag 1 substantially for the substantially isothermal transport of its contents. This content is here illustrated by a box 2 of medicine.
  • the bag 1 is substantially rectangular, and comprises an outer pocket 10 and an inner pocket 20.
  • the outer pocket is formed of two outer walls 15 joined together along a bottom 11 and two Side edges 12. Another edge 13 of one of the walls 15, opposite the bottom 11, forms a lip 13 of a single opening 14 of the outer pocket 10.
  • the other wall 15 extends beyond the lip 13 and forms a flap 16 for closing the opening 14.
  • Each outer wall is formed of three sheets 151-153 of materials weldable together.
  • a first sheet 151 is preferably a reflective plastic material.
  • the outer face of this sheet may be, for example, metallized or of a light color, preferably white.
  • This sheet is generally intended to be an information carrier, for example a screenprint, a mark, etc. in the illustrated example, this first sheet is a complex of polyethylene and polyethylene terephtafate.
  • a second sheet, placed between the other two, is a polyethylene foam. It is at least 1.5 mm thick and preferably about 4 to 5 mm thick. It forms between it and the first leaf, an insulating air blade.
  • the third sheet is a plastic sheet, here polyethylene, providing at the same time the protection of the second sheet and forming between them another blade of insulating air
  • the inner pocket 20 is formed of a plastic film folded on itself so that it forms two inner walls 21 extending from a fold 22.
  • the fold is disposed in the bag 1 substantially parallel to the bottom 11 of the pocket external 10.
  • the inner walls 21 extend from the fold to the vicinity of the opening 14 of the outer pocket 10, between two respective inner lateral edges, masked in Figure 1.
  • the lateral edges are held together and with the outer walls by the welds 17.
  • the inner bag is thus kept suspended in the pocket.
  • Two other edges 23, distant from the fold 22, form in the vicinity and in correspondence with the opening 14 of the bag, an opening 24 for the internal pocket.
  • the two inner walls 21 are interconnected by a transverse weld 25, substantially parallel to the fold 22, and illustrated in phantom mixed in Figure 1.
  • the transverse weld is disposed away from the fold 22 towards the openings, so remote from the bottom 11 of the bag.
  • the internal walls may also be connected by two lateral welds 26.
  • the weld or seams 25, 26, allow the contents of the bag to be centered, here the box 2 in the internal pocket, therefore in the bag 1
  • the transverse seam may suffice, because the bag is generally worn vertically, the opening upwards, and the bottom down.
  • the inside of the inner pocket defines a storage area for the contents of the bag, here the box 2, between the two inner walls 21, the opening 24 and the transverse seam 25.
  • Each outer wall defines with the adjacent inner wall, therebetween, a housing 3.
  • Each housing is provided to removably receive a heat accumulator, here a cold accumulator 30.
  • the accumulators 30 may be frozen for example, and then introduced into the bag 1 at the time of use for transporting the box, then removed to be refrozen, for example. The introduction or withdrawal is through the opening 14 of the bag.
  • each accumulator comprises several cells 31, each containing a gel of sufficient heat capacity. In a preferred configuration, the gel has a thermal capacity close to that of water.
  • the cells are distributed in a relatively flat configuration so that it occupies substantially the entire housing 3. In the example shown, the cells form a checkerboard.
  • the box 2 is substantially homogeneously surrounded by the accumulators 30.
  • the box being centered in the storage area, the storage accumulators beyond the box, upwards, downwards and laterally. So, . there is no edge effect, i.e., the edges of the storage area less cooled than the rest of the area, and the temperature in the storage area is substantially homogeneous.
  • the accumulator is formed of two walls 32 welded to each other.
  • the welds are arranged to form between them the cells 31, that is to say that the accumulator has a padded configuration.
  • each wall is formed of two sheets, At the Figure 1, these sheets are shown independent of each other for the sake of clarity of the figure. However, in the embodiment described these sheets are indissociable and together form a complex.
  • An inner sheet 34 in contact with the gel, ensures the rigidity of the accumulator.
  • the outer sheet 33 seals against the gel.
  • the inner sheet may be polyethylene and have a thickness of about 50 microns, and the outer sheet a polyethylene terephthalate, and have a thickness of about 12 microns.
  • these sheets are shown independent of each other for the sake of clarity of the figure. However, in the embodiment described these sheets are indissociable between them and together form a polyethylene terephthalate and polyethylene complex.
  • the rigidity of the accumulator makes it possible to maintain a relatively small thickness for the cell, which prevents the gel from caking in only a part of the cell, which would reduce the homogeneity of the assembly.
  • the checkerboard comprises 5 transverse rows of 4 cells.
  • the step P of the checkerboard is 60mm, and the widths of the cells are 45mm.
  • the thickness E of the cells is a few millimeters, preferably less than 4 mm.
  • the surface density of the cells is thus about 56% of the total surface of the accumulator.
  • the surface density of the gei is chosen from about 1 kg / m 2 of accumulator.
  • the drug can be maintained in good conditions, a temperature of 5 ° C plus or minus 2 0 C, for a duration of 1h30 to 2h. With an outside temperature of about 30 0 C, this time is still about 45 minutes.
  • closure means may be used for the outer pocket, including a zipper, for example a zipper type "zip”. It is also possible to provide closure means, for example a flap, for the internal pocket.
  • this pocket may be of a substantially rigid material, such as two sheets of cardboard interconnected along at least one connecting edge.
  • a box contained in such an inner bag being kept away from the binding edge by the stiffness of the cardboard sheets, which allows to center in the inner bag, so in the bag.
  • a weld of the bag can be replaced by a fold, or a fold by a weld, depending on the method of manufacture of the bag, without it being outside the scope of the invention as claimed.
  • the fold of the internal pocket can replace, being at the same height, the transverse weld of the inner pocket.
  • the inner and outer pockets may not be fixed together, so that they can be dissociated or associated at will.
  • a device according to the invention is also not limited to the transport of medication or health product. It is also suitable for the transport of cosmetic products, food supplements, or even fresh or frozen heat-sensitive food products.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)

Abstract

Insulating bag (1) comprising an external pocket (10) and an internal pocket (20) which are fastened to one another, said external pocket comprising an opening (14) and a bottom (11), said bottom being arranged at the opposite end to said opening, said pockets defining between them, on each side of the internal pocket, a housing (3) for a heat accumulator (30), the interior of the internal pocket defining a storage region for a content (2) of the bag, characterized in that the internal pocket comprises retaining means (25) for positioning said content at a distance from said bottom of the external pocket. Such a bag is particularly suited for the individual transportation of medicaments.

Description

" Sac isotherme " " Cooler bag "
La présente invention se rapporte principalement à un dispositif pour transporter un produit fragile à une température permettant sa conservation. Plus particulièrement, l'invention se rapporte au transport, par exemple de médicaments ou plus généralement de produits de santé, à l'abri d'une chaleur excessive, notamment entre une pharmacie d'officine ou un cabinet médical et le domicile d'un patient. La présente invention se rapporte aussi à un procédé de transport d'un tel produit. Les sacs permettant le transport de produits congelés dans les conditions acceptables, et généralement distribués dans les magasins, ne sont pas adaptés à transporter une boite de médicament à une température positive, par exemple. Ainsi, un sac de l'art antérieur utilisé seul ne procurerait qu'une protection d'environ 5 minutes, ce qui est généralement insuffisant pour le transport de la boite de médicament entre la pharmacie et le domicile du patient.The present invention relates primarily to a device for transporting a fragile product at a temperature allowing its conservation. More particularly, the invention relates to the transport, for example of drugs or more generally of health products, away from excessive heat, especially between a pharmacy or a doctor's office and the home of a doctor. patient. The present invention also relates to a method of transporting such a product. Bags for the transport of frozen products under acceptable conditions, and generally distributed in stores, are not suitable for transporting a box of medication to a positive temperature, for example. Thus, a bag of the prior art used alone would provide only a protection of about 5 minutes, which is generally insufficient for the transport of the drug box between the pharmacy and the patient's home.
L'ajout d'un bloc accumulateur de froid ne permet pas non plus de transporter le médicament dans de bonnes conditions. En effet, une partie de la boîte proche ou en contact avec le bloc peut être amenée à des température trop froides pour la bonne conservation du médicament, alors qu'une autre partie, éloignée du bloc, peut rapidement monter à une température trop haute pour une bonne conservation du médicament.The addition of a cold storage block also does not allow to transport the drug in good conditions. Indeed, a part of the box close to or in contact with the block can be brought to temperatures too cold for the good preservation of the drug, while another part, away from the block, can quickly rise to a temperature too high for good preservation of the drug.
Le but de l'invention est de proposer un moyen de transport permettant de maintenir pour le contenu, notamment pour un médicament, une température sensiblement homogène pendant un temps suffisamment long.The object of the invention is to provide a transport means for maintaining for the content, especially for a drug, a substantially homogeneous temperature for a sufficiently long time.
Selon un premier objet de l'invention, un tel dispositif est un sac isolant comprenant une poche externe et une poche interne fixées l'une à l'autre, ladite poche externe comprenant une ouverture et un fond, ledit fond étant disposé à l'opposé de ladite ouverture, iesdites poches définissant entre elles, de chaque côté de la poche interne, un logement pour un accumulateur thermique, l'intérieur de la poche interne définissant une zone de stockage pour un contenu du sac, caractérisé en ce que la poche interne comprend des moyens de maintien pour le positionnement dudit contenu à distance dudît fond de la poche externe. Une ouverture pour l'introduction du contenu dans le sac est avantageusement disposée à l'opposée du fond.According to a first object of the invention, such a device is an insulating bag comprising an external pocket and an internal pocket fixed to each other, said external pocket comprising an opening and a bottom, said bottom being disposed to the opposite said aperture, said pockets defining therebetween, on each side of the inner pocket, a housing for a heat accumulator, the inside of the inner pocket defining a storage area for a contents of the bag, characterized in that the pocket internal comprises holding means for positioning said content at a distance from said bottom of the outer pocket. An opening for the introduction of the contents into the bag is advantageously arranged opposite the bottom.
Les moyens de maintiens peuvent être une soudure transversale de la poche interne délimitant la zone de stockage, ladite soudure étant distante du fond du sac.The holding means may be a transverse weld of the inner pocket defining the storage area, said weld being distant from the bottom of the bag.
La poche externe peut comprendre deux parois en prise l'une avec l'autre le long du fond et de bords latéraux reliant ledit fond à l'ouverture.The outer pocket may comprise two walls engaged with each other along the bottom and side edges connecting said bottom to the opening.
Les parois de la poche externe comprennent avantageusement plusieurs couches de matériaux en feuille dont une couche extérieure a de préférence une surface extérieure fortement réfléchissante, de préférence sensiblement blanche ou métallisée et une couche intérieure pour former au moins une lame d'air entre elle et la couche extérieure. Les parois extérieures peuvent aussi comprendre une couche intermédiaire formée d'une mousse isolante, de préférence en mousse polyéthylène, de préférence d'environ 1,5 mm d'épaisseur ou plus.The walls of the outer bag advantageously comprise a plurality of layers of sheet materials, an outer layer of which preferably has a highly reflective, preferably substantially white or metallized outer surface and an inner layer to form at least one air gap between it and the outer layer. outer layer. The outer walls may also comprise an intermediate layer formed of an insulating foam, preferably polyethylene foam, preferably about 1.5 mm thick or more.
La poche externe peut en outre comprendre, pour une fermeture du sac étanche aux transferts de chaleur un rabat ou une fermeture à glissière, de préférence de type zip.The outer pocket may further comprise, for closing the heat-transfer-proof bag, a flap or a zipper, preferably of the zip type.
Le sac peut en outre comprendre un accumulateur thermique prévu pour être introduit par l'ouverture du sac, dans le logement, Cet accumulateur est avantageusement de configuration matelassée, définissant des cellules, chacune contenant un gel ou un liquide, de préférence un gel, afin de lui conserver une épaisseur faible relativement à sa surface, et augmenter ainsi son efficacité. Par exemple, l'épaisseur de chaque cellule est voisine de ou inférieure à 5mm et la densité surfacique des cellules, c'est-à-dire la surface des cellules rapportée à la surface de l'accumulateur peut être comprise entre 50 et 60%, afin d'obtenir une répartition homogène des températures autour de la poche interne. Ainsi, par exemple, chaque cellule a une dimension transversale voisine de 45mm, et les cellules sont séparées entre elles d'environ 15mm. De même, l'accumulateur thermique peut former un damier de 5 rangs de 4 cellules.The bag may further comprise a heat accumulator intended to be introduced through the opening of the bag, into the housing. This accumulator is advantageously of padded configuration, defining cells, each containing a gel or a liquid, preferably a gel, so that to keep a small thickness relative to its surface, and thus increase its effectiveness. For example, the thickness of each cell is close to or less than 5 mm and the surface density of the cells, that is to say the area of the cells relative to the surface of the accumulator can be between 50 and 60% , in order to obtain a homogeneous distribution of the temperatures around the internal pocket. Thus, for example, each cell has a transverse dimension close to 45 mm, and the cells are separated from each other by about 15 mm. Similarly, the heat accumulator can form a checker of 5 rows of 4 cells.
Si l'accumulateur comprend un gel, celui-ci peut avoir une capacité thermique voisine de celle de l'eau. Sa densité surfacique avantageusement d'environ 1 kg par m2. L'accumulateur peut avantageusement comprendre deux parois opposées soudées entre elles, chaque paroi comprenant deux feuilles, l'une en Polyéthylène, et l'autre en polyéthylène téréphtalate (PET), les deux feuilles de polyéthylène téréphtalate étant disposées de part et d'autre des feuilles de Polyéthylène, ces dernières étant directement soudées l'une à l'autre. •If the accumulator comprises a gel, it may have a thermal capacity close to that of water. Its surface density advantageously of about 1 kg per m 2 . The accumulator may advantageously comprise two opposite walls welded together, each wall comprising two sheets, one made of polyethylene, and the other made of polyethylene terephthalate (PET), the two sheets of polyethylene terephthalate being arranged on either side. polyethylene sheets, the latter being directly welded to one another. •
Un tel sac peut être une enveloppe postale isotherme formée d'un sac selon l'une des revendications précédentes. Dans ce cas, la couche intermédiaire de mousse isolante aura une épaisseur importante, par exemple environ 5mm ou plus, afin de garantir une durée de conservation compatible avec un transport par voie postale.Such a bag may be an isothermal postal envelope formed of a bag according to one of the preceding claims. In this case, the intermediate layer of insulating foam will have a large thickness, for example about 5mm or more, to ensure a shelf life compatible with transport by mail.
Un deuxième objet de l'invention est un procédé de transport d'un produit dans un sac, caractérisé en ce que l'on maintient le produit à distance des bords du sac, et en ce que l'on dispose un accumulateur thermique de part et d'autre du produit, ledit accumulateur s'étendant, de façon sensiblement homogène, au-delà du produit en direction des bords.A second object of the invention is a method of transporting a product in a bag, characterized in that the product is kept at a distance from the edges of the bag, and in that a heat accumulator is available from and other of the product, said accumulator extending, substantially homogeneously, beyond the product towards the edges.
Le produit étant ainsi centré dans le sac, la température du produit est maintenue sensiblement uniforme. Ce procédé peut utiliser un sac selon l'invention. L'accumulateur thermique peut faire fonction d'accumulateur de froid. En outre, se procédé peut être utilisé pour le transport d'un médicament.The product is thus centered in the bag, the temperature of the product is maintained substantially uniform. This method can use a bag according to the invention. The heat accumulator can act as a cold accumulator. In addition, the process may be used for the transport of a drug.
D'autres particularités et avantages de l'invention ressortiront encore de la description ci-après, relative à des exemples non limitatifs,Other features and advantages of the invention will emerge from the description below, relating to non-limiting examples,
Aux dessins annexés : - la figure 1 est une vue en perspective de trois-quarts arrière d'un sac selon l'invention, avec arrachement;In the accompanying drawings: - Figure 1 is a perspective view of three-quarter rear of a bag according to the invention, with tearing;
- la figure 2 est une vue schématique de face du sac de la figure 1; et,- Figure 2 is a schematic front view of the bag of Figure 1; and,
- la figure 3 est une vue partielle d'un accumulateur thermique utilisé dans le mode de réalisation de la figure 1. La figure 1 représente un sac 1 sensiblement, pour le transport sensiblement isotherme de son contenu. Ce contenu est ici illustré par une boite 2 de médicament.- Figure 3 is a partial view of a heat accumulator used in the embodiment of Figure 1. Figure 1 shows a bag 1 substantially for the substantially isothermal transport of its contents. This content is here illustrated by a box 2 of medicine.
Le sac 1 est sensiblement rectangulaire, et comprend une poche externe 10 et une poche interne 20. La poche externe est formée de deux parois externes 15 jointives entre elles le long d'un fond 11 et de deux bords latéraux 12. Un autre bord 13 d'une des parois 15, opposé au fond 11, forme une lèvre 13 d'une ouverture unique 14 de la poche externe 10. L'autre paroi 15 s'étend au-delà de la lèvre 13 et forme un rabat 16 pour fermer l'ouverture 14. Chaque paroi externe est formée de trois feuilles 151-153 de matériaux soudables entre eux.The bag 1 is substantially rectangular, and comprises an outer pocket 10 and an inner pocket 20. The outer pocket is formed of two outer walls 15 joined together along a bottom 11 and two Side edges 12. Another edge 13 of one of the walls 15, opposite the bottom 11, forms a lip 13 of a single opening 14 of the outer pocket 10. The other wall 15 extends beyond the lip 13 and forms a flap 16 for closing the opening 14. Each outer wall is formed of three sheets 151-153 of materials weldable together.
Une première feuille 151, la plus à l'extérieur, est de préférence en un matériau plastique réfléchissant. La face extérieure de cette feuille peut être par exemple métallisée ou de couleur claire, de préférence blanche, Cette feuille est généralement prévue pour être un support d'information, par exemple d'une sérigraphie, d'une marque etc. dans l'exemple illustré, cette première feuille est un complexe de polyéthylène et polyéthylène téréphtafate.A first sheet 151, the outermost, is preferably a reflective plastic material. The outer face of this sheet may be, for example, metallized or of a light color, preferably white. This sheet is generally intended to be an information carrier, for example a screenprint, a mark, etc. in the illustrated example, this first sheet is a complex of polyethylene and polyethylene terephtafate.
Une deuxième feuille, disposée entre les deux autres, est en une mousse de polyéthylène. Elle fait au moins 1,5 mm d'épaisseur et de préférence environ 4 à 5 mm d'épaisseur. Elle forme entre elle et la première feuille, une lame d'air isolante.A second sheet, placed between the other two, is a polyethylene foam. It is at least 1.5 mm thick and preferably about 4 to 5 mm thick. It forms between it and the first leaf, an insulating air blade.
La troisième feuille est une feuille plastique, ici du polyéthylène, assurant en même temps la protection de la deuxième feuille et formant entre elles une autre lame d'air isolanteThe third sheet is a plastic sheet, here polyethylene, providing at the same time the protection of the second sheet and forming between them another blade of insulating air
Les trois feuilles de chaque paroi et les deux parois sont reliées entre eïïes, sur chaque bord par une même soudure 17, illustrée en trait mixte à la figure 1.The three sheets of each wall and the two walls are connected between them, on each edge by the same weld 17, shown in phantom in FIG.
La poche interne 20 est formée d'un film plastique replié sur lui-même de sorte qu'il forme deux parois internes 21 s'étendant depuis un pli 22. Le pli est disposé dans le sac 1 sensiblement parallèle au fond 11 de la poche externe 10. Les parois internes 21 s'étendent depuis le pli jusqu'au voisinage de l'ouverture 14 de la poche externe 10, entre deux bords latéraux internes respectifs, masqués à la figure 1. Les bords latéraux sont maintenus entre eux et avec les parois externes par les soudures 17. la poche interne est ainsi maintenue suspendue dans la poche. Deux autres bords 23, distants du pli 22, forment au voisinage et en correspondance avec l'ouverture 14 du sac, une ouverture 24 pour la poche interne.The inner pocket 20 is formed of a plastic film folded on itself so that it forms two inner walls 21 extending from a fold 22. The fold is disposed in the bag 1 substantially parallel to the bottom 11 of the pocket external 10. The inner walls 21 extend from the fold to the vicinity of the opening 14 of the outer pocket 10, between two respective inner lateral edges, masked in Figure 1. The lateral edges are held together and with the outer walls by the welds 17. the inner bag is thus kept suspended in the pocket. Two other edges 23, distant from the fold 22, form in the vicinity and in correspondence with the opening 14 of the bag, an opening 24 for the internal pocket.
Les deux parois internes 21 sont reliées entre elles par une soudure transversale 25, sensiblement parallèle au pli 22, et illustrée en traits mixtes à la figure 1. La soudure transversale est disposée à distance du pli 22 en direction des ouvertures, donc à distance du fond 11 du sac. Comme illustré à la figure 2, les parois internes peuvent en outre être reliées par deux soudures latérales 26. La ou les soudures 25,26, permettent de centrer le contenu du sac, ici la boite 2 dans la poche interne donc dans le sac 1. En général la soudure transversale peut suffire, car le sac est généralement porté verticalement, l'ouverture vers le haut, et le fond vers le bas.The two inner walls 21 are interconnected by a transverse weld 25, substantially parallel to the fold 22, and illustrated in phantom mixed in Figure 1. The transverse weld is disposed away from the fold 22 towards the openings, so remote from the bottom 11 of the bag. As illustrated in FIG. 2, the internal walls may also be connected by two lateral welds 26. The weld or seams 25, 26, allow the contents of the bag to be centered, here the box 2 in the internal pocket, therefore in the bag 1 In general, the transverse seam may suffice, because the bag is generally worn vertically, the opening upwards, and the bottom down.
Ainsi, l'intérieur de la poche interne définit une zone de stockage pour le contenu du sac, ici la boite 2, entre les deux parois internes 21, l'ouverture 24 et la soudure transversale 25.Thus, the inside of the inner pocket defines a storage area for the contents of the bag, here the box 2, between the two inner walls 21, the opening 24 and the transverse seam 25.
Chaque paroi externe définit avec la paroi interne voisine, entre elles, un logement 3. Il y a donc deux logements 3, un de chaque côté de la poche interne. Chaque logement est prévu pour recevoir de façon amovible un accumulateur thermique, ici un accumulateur de froid 30. Les accumulateurs 30 peuvent être congelés par exemple, puis introduits, dans le sac 1 au moment de l'utiliser pour le transport de la boite, puis retirés pour être recongelés par exemple. L'introduction ou le retrait se fait par l'ouverture 14 du sac. Comme illustré aux figures 1 et 3, chaque accumulateur comprend plusieurs cellules 31, chacune contenant un gel d'une capacité thermique suffisante. Dans une configuration préférée, le gel a une capacité thermique voisine de celle de l'eau. Les cellules sont réparties selon une configuration relativement plane de sorte qu'il occupe sensiblement totalement le logement 3. Dans l'exemple illustré, les cellules forment un damier. Ainsi, la boite 2 est entourée façon sensiblement homogène par les accumulateurs 30. En outre, la boite étant centrée, dans la zone de stockage, les accumulateurs d'étende au-delà de la boite, vers le haut, le bas et latéralement. Ainsi, . il n'y a pas d'effet de bord, c'est-à-dire des bords de la zone de stockage moins refroidis que le reste de la zone, et la température dans la zone de stockage est sensiblement homogène.Each outer wall defines with the adjacent inner wall, therebetween, a housing 3. There are two slots 3, one on each side of the inner pocket. Each housing is provided to removably receive a heat accumulator, here a cold accumulator 30. The accumulators 30 may be frozen for example, and then introduced into the bag 1 at the time of use for transporting the box, then removed to be refrozen, for example. The introduction or withdrawal is through the opening 14 of the bag. As illustrated in FIGS. 1 and 3, each accumulator comprises several cells 31, each containing a gel of sufficient heat capacity. In a preferred configuration, the gel has a thermal capacity close to that of water. The cells are distributed in a relatively flat configuration so that it occupies substantially the entire housing 3. In the example shown, the cells form a checkerboard. Thus, the box 2 is substantially homogeneously surrounded by the accumulators 30. In addition, the box being centered in the storage area, the storage accumulators beyond the box, upwards, downwards and laterally. So, . there is no edge effect, i.e., the edges of the storage area less cooled than the rest of the area, and the temperature in the storage area is substantially homogeneous.
L'accumulateur est formé de deux parois 32 soudées l'unes à Pautres. Les soudures sont disposées pour former entre elles les cellules 31, c'est-à- dire que l'accumulateur à une configuration matelassée. De préférence, comme illustré à la figure 1, chaque paroi est formée de deux feuilles, A la figure 1, ces feuilles sont représentées indépendantes l'une de l'autre pour des raisons de clarté de la figure. Cependant, dans le mode de réalisation décrit ces feuilles sont indissociables et forment ensemble un complexe. Une feuille intérieure 34 en contact avec le gel, assure la rigidité de l'accumulateur. La feuille extérieure 33, assure l'étanchéité vis-à-vis du gel. Par exemple, la feuille intérieure peut être un polyéthylène et avoir une épaisseur d'environ 50 microns, et la feuille extérieure un polyéthylène téréphtalate, et avoir une épaisseur d'environ 12 microns. A la figure 1, ces feuilles sont représentées indépendantes l'une de l'autre pour des raisons de clarté de la figure. Cependant, dans le mode de réalisation décrit ces feuilles sont indissociables entre elles et forment ensemble un complexe de poiyéthylène téréphtalate et de polyéthylène.The accumulator is formed of two walls 32 welded to each other. The welds are arranged to form between them the cells 31, that is to say that the accumulator has a padded configuration. Preferably, as illustrated in FIG. 1, each wall is formed of two sheets, At the Figure 1, these sheets are shown independent of each other for the sake of clarity of the figure. However, in the embodiment described these sheets are indissociable and together form a complex. An inner sheet 34 in contact with the gel, ensures the rigidity of the accumulator. The outer sheet 33 seals against the gel. For example, the inner sheet may be polyethylene and have a thickness of about 50 microns, and the outer sheet a polyethylene terephthalate, and have a thickness of about 12 microns. In Figure 1, these sheets are shown independent of each other for the sake of clarity of the figure. However, in the embodiment described these sheets are indissociable between them and together form a polyethylene terephthalate and polyethylene complex.
La rigidité de l'accumulateur permet de conserver une épaisseur relativement faible pour la cellule, ce qui évite que le gel aille s'agglutiner dans une partie seulement de la cellule, ce qui réduirait l'homogénéité de l'ensemble.The rigidity of the accumulator makes it possible to maintain a relatively small thickness for the cell, which prevents the gel from caking in only a part of the cell, which would reduce the homogeneity of the assembly.
Les dimensions générales des boites de médicaments connues sont comprises entre 72 x 69 x 21 mm, et 120 x 185 x 30 mm. Ainsi, dans le mode de réalisation décrit, le damier comprend 5 rangs transversaux de 4 cellules. Le pas P du damier est de 60mm, et les largeurs des cellules sont de 45mm. Compte tenu des matériaux utilisés, l'épaisseur E des cellules est de quelques millimètres, de préférence inférieure à 4mm. La densité surfacique des cellules est donc d'environ 56% de la surface totale de l'accumulateur. La densité surfacique du gei est choisie d'environ 1 kg/m2 d'accumulateur. Dans ces conditions, avec une température extérieure d'environ 22°C, une température de congélation de -18°C pour l'accumulateur, le médicament peut être maintenu dans de bonnes conditions, soit une température de 5°C plus ou moins 20C, pendant une durée de lh30 à 2h. Avec une température extérieure d'environ 300C, cette durée est encore d'environ 45mn.The general dimensions of known drug boxes are between 72 x 69 x 21 mm, and 120 x 185 x 30 mm. Thus, in the embodiment described, the checkerboard comprises 5 transverse rows of 4 cells. The step P of the checkerboard is 60mm, and the widths of the cells are 45mm. Given the materials used, the thickness E of the cells is a few millimeters, preferably less than 4 mm. The surface density of the cells is thus about 56% of the total surface of the accumulator. The surface density of the gei is chosen from about 1 kg / m 2 of accumulator. Under these conditions, with an outside temperature of about 22 ° C, a freezing temperature of -18 ° C for the accumulator, the drug can be maintained in good conditions, a temperature of 5 ° C plus or minus 2 0 C, for a duration of 1h30 to 2h. With an outside temperature of about 30 0 C, this time is still about 45 minutes.
Cela permet d'utiliser moins de gel qu'avec des blocs de froids de l'art, antérieur, en même temps que l'efficacité est grandement améliorée relativement aux sacs de l'art antérieur. Bien sûr, l'invention n'est pas limitée aux exemples qui viennent d'être décrits et de nombreux aménagements peuvent être apportés à ces exemples sans sortir du cadre de l'invention.This makes it possible to use less gel than with cold blocks of the prior art, at the same time as the efficiency is greatly improved with respect to the bags of the prior art. Of course, the invention is not limited to the examples that have just been described and many adjustments can be made to these examples without departing from the scope of the invention.
Au lieu du rabat 16, d'autres moyens de fermeture peuvent être utilisés pour la poche externe, notamment une fermeture à glissière, par exemple une fermeture à glissière de type "zip". On peut aussi prévoir des moyens de fermeture, par exemple un rabat, pour la poche interne.Instead of the flap 16, other closure means may be used for the outer pocket, including a zipper, for example a zipper type "zip". It is also possible to provide closure means, for example a flap, for the internal pocket.
Ainsi, plutôt qu'une poche interne souple telle que précédemment décrit, cette poche peut être en une matière sensiblement rigide, telles que deux feuilles de carton reliées entre elles ie long d'au moins un bord de liaison. Une boite contenue dans une telle poche interne étant maintenue à distance du bord de liaison par la rigidité des feuilles de carton, ce qui permet de la centrer dans la poche interne, donc dans le sac.Thus, rather than a flexible inner pouch as previously described, this pocket may be of a substantially rigid material, such as two sheets of cardboard interconnected along at least one connecting edge. A box contained in such an inner bag being kept away from the binding edge by the stiffness of the cardboard sheets, which allows to center in the inner bag, so in the bag.
Aussi, une soudure du sac peut être remplacée pas un pli, ou un pli par une soudure, selon le mode de fabrication du sac, sans que cela sorte du domaine de l'invention telle que revendiquée. Notamment, le pli de la poche interne peut remplacer, en étant à la même hauteur, la soudure transversale de la poche interne.Also, a weld of the bag can be replaced by a fold, or a fold by a weld, depending on the method of manufacture of the bag, without it being outside the scope of the invention as claimed. In particular, the fold of the internal pocket can replace, being at the same height, the transverse weld of the inner pocket.
Les poches intérieure et extérieure, peuvent ne pas être fixées entre elles, de sorte qu'elles peuvent être dissociées ou associées à volonté.The inner and outer pockets, may not be fixed together, so that they can be dissociated or associated at will.
L'utilisation d'un dispositif selon l'invention n'est pas non plus limitée au transport de médicament ou de produit de santé. Il est adapté aussi au transport de produits cosmétiques, de complément alimentaires, ou même de produits alimentaires sensibles à la chaleur frais ou congelés. The use of a device according to the invention is also not limited to the transport of medication or health product. It is also suitable for the transport of cosmetic products, food supplements, or even fresh or frozen heat-sensitive food products.

Claims

REVENDICATIONS
1. Sac isolant (1) comprenant une poche externe (10) et une poche interne (20) fixées l'une à l'autre, ladite poche externe comprenant une ouverture (14) et un fond (11), ledit fond étant disposé à l'opposé de ladite ouverture, lesdites poches définissant entre elles, de chaque côté de la poche interne, un logement (3) pour un accumulateur thermique (30), l'intérieur de la poche interne définissant une zone de stockage pour un contenu (2) du sac, caractérisé en ce que la poche interne comprend des moyens de maintien (25,26) pour le positionnement dudit contenu à distance dudit fond de la poche externe,An insulating bag (1) comprising an outer pocket (10) and an inner pocket (20) attached to each other, said outer pocket including an opening (14) and a bottom (11), said bottom being disposed opposite said opening, said pockets defining between them, on each side of the inner pocket, a housing (3) for a heat accumulator (30), the inside of the inner pocket defining a storage area for a content (2) the bag, characterized in that the inner bag comprises holding means (25,26) for positioning said content at a distance from said bottom of the outer pocket,
2. Sac selon la revendication 1, caractérisé en ce qu'il comprend une ouverture (24) pour l'introduction du contenu dans la poche interne, disposée à l'opposée du fond.2. Bag according to claim 1, characterized in that it comprises an opening (24) for the introduction of the contents into the inner bag, disposed opposite the bottom.
3. Sac selon la revendication 1 ou 2, caractérisé en ce que les moyens de maintiens sont une soudure transversale (25) de la poche interne délimitant la zone de stockage, ladite soudure étant distante du fond du sac.3. Bag according to claim 1 or 2, characterized in that the holding means are a transverse weld (25) of the inner pocket defining the storage area, said weld being remote from the bottom of the bag.
4. Sac selon l'une des revendications 1 à 3, caractérisé en ce que la poche externe comprend deux parois (15) en prise l'une avec l'autre le long du fond et de bords latéraux (12) reliant ledit fond à l'ouverture.4. Bag according to one of claims 1 to 3, characterized in that the outer pocket comprises two walls (15) engaged with each other along the bottom and side edges (12) connecting said bottom to the opening.
5. Sac selon la revendication 4, caractérisé en ce que les parois de la poche externe comprennent plusieurs couches (151,152,153) de matériaux en feuille dont une couche extérieure (151) a une surface extérieure fortement réfléchissante, de préférence sensiblement blanche ou métallisée et une couche intérieure (153) pour former au moins une lame d'air entre elle et la couche extérieure,5. Bag according to claim 4, characterized in that the walls of the outer bag comprise several layers (151,152,153) of sheet materials, an outer layer (151) has a highly reflective outer surface, preferably substantially white or metallized and a inner layer (153) for forming at least one air gap between it and the outer layer,
6. Sac selon la revendication 5, caractérisé en ce que chaque paroi de la poche externe comprend en outre une couche intermédiaire (152) formée d'une mousse isolante, de préférence en mousse poiyéthylène, de préférence d'environ 1,5 mm d'épaisseur.Bag according to claim 5, characterized in that each wall of the outer bag further comprises an intermediate layer (152) formed of an insulating foam, preferably polyethylene foam, preferably about 1.5 mm thick.
7. Sac selon l'une des revendications 1 à 6, caractérisé en ce que la poche externe comprend un rabat (16) pour la fermeture isolante de l'ouverture du sac.7. Bag according to one of claims 1 to 6, characterized in that the outer pocket comprises a flap (16) for the insulating closure of the opening of the bag.
8. Sac selon l'une des revendications 1 à 6, caractérisé en ce que la poche externe comprend une fermeture à glissière, de préférence de type zip, pour la fermeture isolante de l'ouverture du sac.8. Bag according to one of claims 1 to 6, characterized in that the outer pocket comprises a zipper, preferably zip type, for the insulating closure of the opening of the bag.
9. Sac selon l'une des revendications 1 à 8, caractérisé en ce qu'il comprend un accumulateur thermique (30), de préférence prévu pour être introduit de façon amovible par l'ouverture du sac dans le logement.9. Bag according to one of claims 1 to 8, characterized in that it comprises a heat accumulator (30), preferably provided to be introduced removably by the opening of the bag in the housing.
10. Sac selon la revendication 9, caractérisé en ce que l'accumulateur est de configuration matelassée, définissant des cellules (31), chacune contenant un gel ou un liquide, de préférence un gel.10. Bag according to claim 9, characterized in that the accumulator is of padded configuration, defining cells (31), each containing a gel or a liquid, preferably a gel.
11. Sac selon la revendication 9 ou 10, caractérisé en ce que le gel a une capacité thermique voisine de celle de l'eau.11. Bag according to claim 9 or 10, characterized in that the gel has a thermal capacity close to that of water.
12. Sac selon l'une des revendications 9 à 11, caractérisé en ce que la densité surfacique du gel est d'environ 1 kg par m2 12. Bag according to one of claims 9 to 11, characterized in that the surface density of the gel is about 1 kg per m 2
13. Sac selon l'une des revendications 9 à 12, caractérisé en ce que l'épaisseur (E) de chaque cellule est voisine de ou inférieure à 5mm.13. Bag according to one of claims 9 to 12, characterized in that the thickness (E) of each cell is close to or less than 5mm.
14. Sac selon l'une des revendications 9 à 13, caractérisé en ce que la densité surfacique des cellules est comprise entre 50 et 60% de la surface de l'accumulateur.14. Bag according to one of claims 9 to 13, characterized in that the surface density of the cells is between 50 and 60% of the surface of the battery.
15. Sac selon l'une des revendications 1 à 6, caractérisé en ce que chaque cellule à une dimension transversale (L) voisine de 45mm, et les cellules sont séparées entré elles d'environ 15mm. 15. Bag according to one of claims 1 to 6, characterized in that each cell has a transverse dimension (L) of about 45mm, and the cells are separated between them of about 15mm.
16. Sac selon la revendication 15, caractérisé eh ce que les dimensions du sac permettent d'y ajuster un accumulateur thermique formant un damier formé de 5 rangs de 4 cellules.16. Bag according to claim 15, characterized in that the dimensions of the bag allow to adjust a heat accumulator forming a checker formed of 5 rows of 4 cells.
17. Sac selon l'une des revendications 9 à 16, caractérisé en ce que l'accumulateur comprend deux parois (32) opposées soudées entre elles, chaque paroi comprenant deux feuilles (33,34), l'une (34) en Polyéthylène, et l'autre (33) en polyéthylène téréphtalate (PET), les deux feuilles de polyéthylène téréphtalate étant disposées de part et d'autre des feuilles de Polyéthylène, ces dernières étant directement soudées l'une à l'autre.17. Bag according to one of claims 9 to 16, characterized in that the accumulator comprises two walls (32) opposite welded together, each wall comprising two sheets (33,34), one (34) polyethylene and the other (33) polyethylene terephthalate (PET), the two sheets of polyethylene terephthalate being disposed on either side of the polyethylene sheets, the latter being directly welded to each other.
18. Enveloppe postale isotherme formée d'un sac selon l'une des revendications précédentes.18. Isothermal postal envelope formed of a bag according to one of the preceding claims.
19. Procédé de transport d'un produit dans un sac, caractérisé en ce que l'on maintient le produit à distance des bords dudit sac, et en ce que l'on dispose un accumulateur thermique de part et d'autre du produit, ledit accumulateur s'étendant, de façon sensiblement homogène, au-delà du produit en direction des bords.19. A method of transporting a product in a bag, characterized in that the product is kept at a distance from the edges of said bag, and in that a heat accumulator is arranged on each side of the product, said accumulator extending substantially homogeneously beyond the product towards the edges.
20. selon la revendication 19, caractérisé en ce que l'accumulateur thermique fait fonction d'accumulateur de froid.20. according to claim 19, characterized in that the heat accumulator acts as a cold accumulator.
21. Procédé selon la revendication 20, caractérisé en ce qu'il est utilisé pour le transport d'un produit de santé, notamment d'un médicament. 21. The method of claim 20, characterized in that it is used for the transport of a health product, including a drug.
PCT/FR2007/000975 2006-06-29 2007-06-13 Isothermal bag WO2008000927A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0605894 2006-06-29
FR0605894A FR2903091B1 (en) 2006-06-29 2006-06-29 "COOLER BAG"

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WO2008000927A2 true WO2008000927A2 (en) 2008-01-03
WO2008000927A3 WO2008000927A3 (en) 2008-03-06

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CN110915452A (en) * 2019-12-18 2020-03-27 王义华 Agricultural plant branch grafting is with device of fixed and automatic dropwise add liquid medicine

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FR2320243A1 (en) * 1975-08-06 1977-03-04 Oriol Jean Rene Inflatable insulated storage container - has outer flexible envelope filled through valve in side and inner envelope filled through plug in top
CH655481A5 (en) * 1983-08-03 1986-04-30 Jean-Pierre Weber Thermally insulating package - uses fluid filled, plastics-metal foil laminated bag with insulated base and fold-over top
WO1997028064A1 (en) * 1996-01-29 1997-08-07 Instar Pty. Ltd. Portable flexible container for keeping articles cold
EP0841260A1 (en) * 1996-11-12 1998-05-13 Edwin Francis Tattam Freezable protective pouch
US20030198721A1 (en) * 2002-04-22 2003-10-23 Price William D. Jacketed reclosable container

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2320243A1 (en) * 1975-08-06 1977-03-04 Oriol Jean Rene Inflatable insulated storage container - has outer flexible envelope filled through valve in side and inner envelope filled through plug in top
CH655481A5 (en) * 1983-08-03 1986-04-30 Jean-Pierre Weber Thermally insulating package - uses fluid filled, plastics-metal foil laminated bag with insulated base and fold-over top
WO1997028064A1 (en) * 1996-01-29 1997-08-07 Instar Pty. Ltd. Portable flexible container for keeping articles cold
EP0841260A1 (en) * 1996-11-12 1998-05-13 Edwin Francis Tattam Freezable protective pouch
US20030198721A1 (en) * 2002-04-22 2003-10-23 Price William D. Jacketed reclosable container

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110915452A (en) * 2019-12-18 2020-03-27 王义华 Agricultural plant branch grafting is with device of fixed and automatic dropwise add liquid medicine

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FR2903091B1 (en) 2008-09-26
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