EP4460468A1 - Coupelle de valve pour récipient sous pression - Google Patents
Coupelle de valve pour récipient sous pressionInfo
- Publication number
- EP4460468A1 EP4460468A1 EP23700271.2A EP23700271A EP4460468A1 EP 4460468 A1 EP4460468 A1 EP 4460468A1 EP 23700271 A EP23700271 A EP 23700271A EP 4460468 A1 EP4460468 A1 EP 4460468A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cup
- valve
- wall
- descending
- peripheral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/38—Details of the container body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
- B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
- B65D83/48—Lift valves, e.g. operated by push action
Definitions
- the invention relates to a valve cup for a pressure vessel, as well as a valve consisting of such a cup.
- Valve cups are commonly used for pressure vessels, especially for aerosol dispensers.
- a valve body is attached to the cup forming an internal chamber in which there is a spring, a seal and between the two at least part of the valve. The spring pushes the valve against the gasket so that the valve is closed.
- the valve cup is usually attached to the neck of a container by expansion, a method of attachment that involves creating an expansion of the valve cup by chucking or hydraulic pressure, resulting in plastic deformation of the valve cup.
- This deformation allows the cup to obtain a shape which substantially matches the internal shape of the neck of the container and thus to be fixed to said neck.
- the inventor realized that the plastic deformation during expansion is difficult to control and that the deformation does not always only take place in the direct vicinity of the neck but also in other parts of the valve cup. This causes a loss of mechanical resistance to pressure in the container and a risk of rupture of the weld between the valve body and the valve cup.
- the objective of certain embodiments is to design a valve cup which, when attached to the pressure vessel, for example by expansion, allows better control of plastic deformation, and in particular protection of the central part of the cup, in particular to protect the attachment between the valve body and the valve cup.
- a valve cup for a pressurized container having an inner face oriented towards the interior of the container and an outer face.
- the cup is provided with a peripheral deformable fixing zone configured to fix the cup on the container, with a central opening configured to allow the passage of a product outlet rod, and with a bottom wall surrounding the central opening, and comprising a peripheral descending part and a central part.
- the bottom wall comprises a central part provided with a protection zone configured to limit the deformation of the central part during the deformation of the deformable fixing zone of the cup to fix the cup on the container.
- the protection zone makes it possible to limit the deformation of the central part, while the deformable fixing zone substantially matches the shape of the neck. Due to the presence of the protection zone, the central part does not have to be particularly resistant, since it is subjected to less effort when fixing the cup to the container.
- the angles between the different portions of the bottom wall remain substantially identical.
- the negative angle of the peripheral descending part remains substantially identical, which makes it possible to limit the loss of mechanical resistance to pressure within the container. Indeed, in a traditional valve cup, this angle can decrease in absolute value, approaching zero, or even become positive, due to the deformation of the valve cup, which generates a loss of mechanical resistance to pressure in the recipient.
- the central part is provided with a flat wall surrounded by the protection zone, including the central opening and configured to receive on the inner face a valve body.
- the inner face of the valve cup can allow the attachment of a valve body to the valve cup, in particular by gluing or welding the valve body to the flat wall of the central part of the cup.
- the welding can be carried out by any suitable means, and in particular by ultrasonic welding or by rotation welding.
- the protection zone makes it possible to protect the attachment between the valve body and the valve cup and thus to prevent the valve body from detaching from the valve cup.
- the deformable attachment zone comprises a deformable descending wall, preferably with an essentially vertical slope, and a bearing edge.
- the deformable descending wall can be substantially cylindrical, or slightly tapered. It makes it possible on the one hand to distance the central opening from the end of the deformable fixing zone by helping to make the cavity defined by the cup deeper, and on the other hand to fix the cup to the neck of the container, in particular in the event of expansion.
- the deformable attachment zone allows the cup to be placed on the neck of the container. The outside diameter of the cup can be greater than the diameter of the neck so that the cup does not fall into the container.
- the neck of the container is generally rolled and the deformable fixing zone surrounds the internal part of the neck. In this case, the deformable attachment zone substantially matches the shape of the neck by enveloping the inner part of the neck.
- the protection zone comprises a rising and/or descending wall which protrudes from the peripheral descending part.
- the rising and/or falling wall corresponds to a rising wall
- the rising wall can be configured to surround a crown for fixing a valve body.
- the rising and/or descending wall can be substantially cylindrical, or slightly tapered. It makes it possible on the one hand to isolate the central part of the deformable fixing zone, and on the other hand, it serves as a centering means for centering the valve body, in particular in the event of fixing of the crown of the valve body on the inside face of the flat wall of the central part.
- the rising and/or descending wall makes it possible to protect the attachment between the crown of the valve body and the valve cup by limiting the deformation of the central part, in particular of the flat wall of the central part, and thus prevent the valve body from disengaging from the valve cup.
- the bottom wall comprises a bend between the peripheral descending part and the rising and/or descending wall.
- This elbow makes it possible to make the junction between the peripheral descending part and the central part discontinuous, and thus to protect the central part by limiting the deformation of the central part when fixing the cup on the container, but also to maintain the negative angle of the peripheral descending part at a substantially constant value before and after attachment of the cup to the container.
- the rising and/or descending wall is a rising wall, and an angle between the peripheral descending part and the rising wall is less than 90°, preferably between 50° and 85°, more preferably between 60° and 80°.
- the rising and/or descending wall is a descending wall, and an angle between the peripheral descending part and the descending wall is greater than 90°, preferably between 95° and 140°, more preferably between 100° and 120°.
- said wall makes it possible to isolate the central part of the deformable binding zone, and thereby to protect the binding between the crown of the valve body and the valve cup by limiting the deformation of the central part.
- the bottom wall comprises an upturned edge forming a rolled edge surrounding the central opening.
- the edge of the bottom wall which surrounds the central opening can be in the extension of the rising and/or descending wall when this rising and/or descending wall is frustoconical or, if the bottom wall comprises a flat wall, in the extension of said flat wall.
- the edge of the bottom wall which surrounds the central opening may prove useful to roll up the edge of the bottom wall which surrounds the central opening to prevent the edge of the cup at the level of the central opening from coming into contact with, for example, a remainder of the product contained in the pressure vessel that has fallen into the cup.
- the edge of the bottom wall which surrounds the central opening may be rolled up to form a rolled edge, preferably rolled up on the side of the outer face of the cup.
- the portion of the edge of the cup surrounding the central opening is at a distance, preferably above, from the bottom wall.
- the edge is rolled up a first time on the side of the outer face of the cup, and a second time on the side of the inner face of the cup.
- the edge forms, with respect to the flat wall, an angle of between 70° and 110°, preferably between 80° and 100°.
- the peripheral descending part comprises a concave exterior face.
- the shape of the peripheral descending part may be such that its inner face is convex, therefore its outer face is concave. In this way, the cup is more resistant to the pressure within the container.
- vertical and radial reinforcing ribs on at least one of the faces of the cup, preferably the outer face, can be provided to strengthen the cup.
- the concave outer face has a radius of curvature of between 4 and 20 mm, preferably between 5 and 15 mm.
- the peripheral descending part comprises a flat frustoconical outer face.
- the inclination of the frustoconical part makes it possible on the one hand to move the central opening away from the deformable fixing zone and on the other hand allows the cup to resist the pressure within the container.
- the inclination of the frustoconical part can be chosen according to said pressure and the desired distance to separate the central opening from the deformable fixing zone, in other words the depth of the cavity of the cup.
- the peripheral descending part comprises a first portion of concave outer face as well as a second portion of planar frustoconical outer face.
- the deformable attachment zone has a height at least three times greater than the height of the peripheral descending part.
- the height of the peripheral descending part is greater than the height of the rising and/or descending wall. Height is measured parallel to the centerline of the valve cup.
- the flat wall forms, with respect to the rising and/or descending wall, an angle comprised between 70° and 110°, preferably between 80° and 100°.
- the end of the deformable attachment zone is substantially horizontal.
- the deformable binding area in particular the bearing edge, does not descend in the form of an outer skirt after reaching its top. This saves material by removing the annular cavity traditionally used to wrap the neck of the container past the top of the neck.
- the deformable attachment zone comprises a frustoconical part.
- This frustoconical part has the particular advantage of facilitating the attachment of the cup to the neck of the pressure vessel.
- a valve consisting of a cup according to one of the embodiments described above, and of a valve body with a product outlet stem, the valve body valve being attached to the inner face of the cup, with the stem passing through the central opening of the cup.
- valve body is welded or glued to the inner face of the central part of the bottom wall.
- the annular portion (upper face) of the fastening crown is preferably provided with at least one extra thickness of material making the complete circumference of the crown and serving as an energy director during ultrasonic welding of the valve body to the cup.
- the protection zone makes it possible to protect the attachment between the valve body and the valve cup and thus to prevent the valve body from unhooking from the valve cup.
- the valve body comprises a spring, a valve and a valve seal.
- the spring pushes the valve against the gasket so that the valve is closed.
- the seal between the cup and the valve body is therefore ensured by the valve seal crushed against the inner face of the cup by forming an annular seal all around the central opening.
- the weld at the interface between the fixing crown and the cup must therefore not be sealed. It only needs to retain the valve body against the cup against the effect of the spring and ensure good plating of the valve seal against the inner face of the cup. It is therefore possible that the weld is not continuous.
- a valve cup for a pressurized container having an inner face oriented towards the interior of the container and an outer face.
- the cup is provided with a peripheral deformable fixing zone configured to fix the cup on the container, with a central opening configured to allow the passage of a product outlet rod, and with a bottom wall surrounding the central opening, and comprising a peripheral descending part and a central part.
- the central part comprises a rising and/or descending wall which protrudes from the peripheral descending part.
- the rising wall when the rising and/or descending wall corresponds to a rising wall, the rising wall is configured to surround a fixing crown of a valve body.
- the objective of vane embodiments is to design a valve cup that is economical to manufacture which, when attached to a valve body, such as by welding, better aligns the central opening of the valve cup and the inner chamber of the valve body.
- a valve cup for a pressurized container having an inner face oriented towards the interior of the container and an outer face.
- the cup is provided with a peripheral deformable fixing zone configured to fix the cup on the container, with a central opening configured to allow the passage of a product outlet rod, with a bottom wall surrounding the opening central, and comprising a peripheral descending part and a central part.
- the central part is provided with a centering means configured to allow the cenhage of a valve body during the fixing of the valve body on the inner face of the central part. In this way, when the cup is fixed to the valve body, the centering means makes it possible to center the valve body so that the central opening of the valve cup is aligned with the internal chamber of the valve body.
- the centering means is a continuous peripheral wall formed in the central part.
- the centering means is composed of a plurality of spaced apart protrusions.
- the central part is provided with a flat wall including the central opening and surrounded by the centering means, configured to receive on the inner face a valve body.
- the centering means is a protection zone configured to limit the deformation of the central part during the deformation of the deformable fixing zone of the cup to fix the cup to the container.
- the centering means is a rising wall which protrudes from the peripheral descending part.
- the rising wall can be substantially cylindrical, or slightly tapered. It serves as a centering means for centering the valve body, in particular in the case of fixing the crown of the valve body on the inner face of the flat wall of the central part. Indeed, the valve body can occupy the space of the cavity defined by the rising wall and the central part of the bottom wall on the side of the inner face so as to be centered before being fixed to the valve cup. .
- Figure 1 illustrates an exploded view of a male-type valve fitted with a cup according to one embodiment of the invention
- Figures 2A and 2B respectively illustrate a sectional and perspective view of the valve body of the valve of Figure 1, and of the male valve stem;
- Figure 3 illustrates a sectional view of the valve of Figure 1;
- Figure 4 illustrates a sectional and perspective view of the valve cup of Figure 1;
- Figure 5 illustrates a cross-sectional view of a female-type valve provided with a cup according to one embodiment of the invention
- Figure 6 illustrates a cross-sectional view of a high-flow type valve provided with a cup according to one embodiment of the invention
- Figure 7 illustrates a sectional view of a male-type valve provided with a cup according to an alternative embodiment of the invention
- Figures 8A and 8B illustrate a sectional view of a cup according to one embodiment of the invention before expanding ( Figure 8A) and after expanding (Figure 8B);
- Figures 9A and 9B illustrate a sectional view of a cup according to an alternative embodiment of the invention before expanding ( Figure 9A) and after expanding ( Figure 9B);
- Figure 10 illustrates a sectional view of the valve of Figure 1 expanded on a container
- Figures 11A and 11B illustrate a sectional view of a cup according to two alternative embodiments of the invention
- Figures 12A and 12B illustrate a sectional view of a cup according to two alternative embodiments of the invention.
- Figures 13A to 13C illustrate a sectional view of a male-type valve provided with a cup comprising a centering means.
- Figure 1 schematically illustrates an exploded view of a male-type valve provided with a cup according to one embodiment of the invention.
- Figure 1 illustrates a valve cup for a valve 1 for a pressure vessel.
- the valve 1 consists mainly of a cup 50 and a valve body 10 in which are placed a spring 20, a valve 30 and a valve seal 40.
- Poppet valves are sealed by a valve 30 which must be moved away from valve seal 40 to allow product to exit the valve.
- the product leaves valve 1 through a small tube, called a stem, which passes through a central opening in the cup.
- Valve 1 can be used in all positions. In the figures illustrating this application, the valve is shown with the stem or female valve access opening facing upward.
- the references “top” / “bottom” or “upper” / “lower” have only a relative value in relation to the representations of the attached figures. It goes without saying that the valve can be used in all positions and what is up in the position shown here will not necessarily be up when in use.
- the valve extends longitudinally with respect to a main axis A, vertical in the representations of the attached figures.
- the terms “radial”, “axial” and “transverse” refer to this main axis A.
- the cup 50 constitutes a separation between the side of the valve intended to be placed inside the container and the other side intended to be outside the container.
- inner and outer refer to elements located on the inner or outer side of the cup.
- intermediate and outer refer to a particular component (in particular the valve body) and define what is inside or outside of said component, whether it is a component located on the inner or outer face of the cup.
- Figures 2A and 2B schematically illustrate respectively a sectional and perspective view of the valve body of the valve of Figure 1, and of the male valve stem.
- the valve body 10 mainly consists of a tubular body 11 partially closed at a first end, called the lower end, by a bottom wall 12 having an inlet opening 121.
- the tubular body 11 and the bottom wall 12 define together an internal chamber 13.
- Vertical ribs 131 may be provided in the bottom of the internal chamber, close to the bottom wall. These ribs project radially from the tubular body towards the center of the internal chamber, forming a reception space in which a first end of the spring 20 can be received and retained radially.
- a fixing stud 14 may be provided on the outer face of the wall of bottom 12 to fix for example a dip tube or anti-sagging means. This stud 14 is tubular in shape and surrounds the inlet opening 121.
- the wall of the tubular body 11 tapers in the part carrying the vertical ribs 131.
- this part can be tapered.
- the tubular body 11 and the internal chamber 13 essentially consist of a cylindrical upper part continuing downwards by a narrowing part (here frustoconical) closed at the bottom by the bottom wall 12.
- the tubular wall and the internal chamber remain cylindrical up to the bottom wall. This narrowed part contributes to reducing the manufacturing cost of the valves of the invention.
- At least one opening 112 may be provided in the tubular body 11, which opening forms a passage bringing the external face and the internal face of the tubular body into contact. This opening, which is not mandatory, serves as an additional gas outlet to improve the quality of the spray.
- the second end of the tubular body 11 ends in a tapered edge 111. It is surrounded by a fixing ring 15 which consists of a tubular wall connected to the second end of the tubular body by a transverse wall 151.
- This transverse wall is for example parallel to a plane perpendicular to F main axis A. It can be solid as in the present example, or crenellated if it is not necessary to ensure a seal between the two faces of this transverse wall.
- the edge (upper face) annular 152 of the fixing ring 15 is preferably provided with at least one extra thickness of material making the complete turn of the ring and serving as an energy director during the ultrasonic welding of the valve body on the cup. In the example shown here, there are two material allowance rings 152a, 152b.
- the stem 30 is of common form. It consists of a cylindrical wall 31 open at its upper end 311 and closed at its lower end, forming a product outlet channel. One or more orifices 312 placed at the bottom of the outlet channel pass radially through the cylindrical wall to bring the inner face and the outer face of said cylindrical wall 31 into contact.
- the cylindrical wall 31 constitutes the outlet stem of the product.
- This cylindrical wall is continued by the part serving as a valve which comprises a crown 32 of larger diameter having on its outer face vertical channels or vertical ribs allowing the product to bypass the crown.
- the outer envelope of this crown has a diameter slightly smaller than the internal diameter of the tubular body 11 of the valve body so that it can enter the latter while being guided.
- crown 32 On its upper annular face, crown 32 is provided with a sealing rib 321 to ensure sealing with the valve seal 40. Crown 32 is continued downwards by a guide pin 33 intended to cooperate with the second end of spring 20.
- the seat of the female valves and the grommet of the high-flow valves are also of standard shape.
- Figure 3 schematically illustrates a sectional view of the valve of Figure 1.
- Figure 4 schematically illustrates a sectional and perspective view of the valve cup of Figure 1.
- the valve cup 50 for a pressure vessel 60 has an inner face 501 oriented towards the inside of the vessel 60 and an outer face 502.
- the valve cup 50 is provided with a deformable fixing zone 51 peripheral configured to fix the cup 50 on the container (not shown, cf. element 60 of Figure 10), a central opening 52 configured to allow the passage of a product outlet rod, and a bottom wall 56 surrounding the opening 52, and comprising a peripheral descending part 562 and a central part 561.
- the bottom wall 56 comprises a central part 561 provided with a protection zone configured to limit the deformation of the central part 561 during the deformation of the zone deformable fixing 51 of the cup to fix the cup on the container 60.
- the central part 561 can be provided with a flat wall 565 surrounded by the protection zone, including the central opening 52 and configured to receive on the inner face 501 a valve body 10.
- the deformable fastening zone 51 can comprise a deformable descending wall 513, preferably with an essentially vertical slope, and a bearing edge 511.
- the deformable descending wall 513 can be substantially cylindrical as illustrated in FIGS. 3 and 4, or slightly tapered. It makes it possible, on the one hand, to distance the central opening 52 from the end of the deformable fixing zone 51 by contributing to making the cavity 503 defined by the cup 50 deeper, and on the other hand to fix the cup 50 at the neck 61 of the container 60, in particular in the event of expansion.
- the protection zone may include a rising and/or falling wall 563 configured to surround a fastening ring 15 of a valve body 10, as illustrated in FIG. 3.
- the rising and/or falling wall 563 may protrude from the peripheral descending part 562.
- the rising and/or descending wall can be substantially cylindrical as illustrated in FIGS. 3 and 4, or slightly tapered. It makes it possible on the one hand to isolate the central part 561 from the deformable fixing zone 51, and on the other hand, it serves as a centering means for centering the valve body 10, in particular in the case of fixing of the crown 15 of the valve body 10 on the inner face 501 of the flat wall 565 of the central part 561. Indeed, the valve body 10 can occupy the space of the cavity defined by the rising wall 563 and the flat wall 565 on the side of the inner face 501 so as to be centered before be attached to valve cup 50.
- the bottom wall 56 may include an elbow 566 (see Figure 4) between the peripheral descending part 562 and the rising and/or descending wall 563.
- the rising and/or descending wall 563 may correspond to a rising wall 563 as illustrated in Figures 3 and 4.
- An angle ⁇ between the peripheral descending part 562 and the rising wall 563 can be less than 90°, preferably between 50° and 85°, more preferably between 60° and 80°. This angle a is measured on the side of the outer face 502.
- the bottom wall 56 may include an upturned edge 564 forming a rolled edge surrounding the central opening 52.
- the edge 564 of the bottom wall 56 which surrounds the central opening 52 may be in the extension of the flat wall 565.
- the edge 564 can form, with respect to the flat wall 565, an angle P comprised between 70° and 110°, preferably between 80° and 100°. This angle P is measured on the side of the outer face 502.
- the peripheral descending part 562 can comprise a planar tapered external face as illustrated in FIGS. 3 and 4.
- the deformable attachment zone 51 can have a height at least three times greater than the height of the peripheral descending part 562. The height is measured parallel to the main axis A.
- the height of the peripheral descending part 562 can be greater than the height of the rising and/or descending wall 563, as illustrated in FIG. 3. Alternatively, the height of the peripheral descending part 562 may be less than the height of the rising and/or falling wall 563, as shown in Figure 4.
- the flat wall 565 can form, with respect to the rising and/or descending wall 563, an angle comprised between 70° and 110°, preferably between 80° and 100°. This angle y is measured on the side of the inner face 501.
- the end of the deformable attachment zone 51 can be substantially horizontal.
- the peripheral end of the deformable attachment zone 51 can take the form of a flat ring as illustrated in FIGS. 3 and 4 and/or a ring whose wall is inclined towards the center of the cup 50. Otherwise said, the end of the deformable attachment zone 51 does not come down after having reached its highest point.
- the deformable descending wall 513 can for example be frustoconical as illustrated in FIGS. 3 and 4, or partially toric.
- Its inner face 501 preferably has substantially the dimensions and shape of the neck 61 of the container 60 for which it is intended. In other words, the deformable attachment zone 51, in particular the bearing edge 511, does not descend again in the form of an outer skirt after having reached its top.
- the deformable fixing zone 51 may comprise a frustoconical part 512.
- This frustoconical part 512 has the particular advantage of facilitating the fixing of the cup 50 on the neck of the container (not shown, cf. elements 60 and 61 of Figure 10) .
- the cup 50 can be made entirely of polymer. It is also possible for it to consist, as in the present example, of an outer layer 53 of metal and an inner layer 54 of polymer. It is possible, for example, to choose a laminate of metal and polymer. In particular, a laminate of 0.25 mm of steel and 200 ⁇ m of PP is particularly well suited to the invention.
- the inner face 501 of the cup can be provided with a layer 54 that can serve as a seal.
- this layer 54 can be made of polymer, preferably polypropylene or another polyolefin (PE, PET, TPE), virgin, recycled or biosourced, food grade or not, pharmaceutical grade or not.
- the outer face 502 of the cup can be provided with a layer 53 of metal, preferably of aluminum or tinplate. This allows the cup to be fixed by expansion. In addition, this metal layer gives the cup sufficient rigidity to withstand the pressure prevailing in the container 60 under pressure. If necessary, reinforcing ribs can be provided on at least one face of the dish, preferably the outer face.
- a space may be provided between the valve cup 50 and the fixing ring 15 of the valve body 10, as illustrated in FIG. 3.
- This space has the particular advantage of allowing the fixing ring 15 to vibrate freely during the welding of the valve body 10 on the valve cup 50.
- Figure 5 schematically illustrates a cross-sectional view of a valve of the female type provided with a cup according to one embodiment of the invention, showing on the left a cup with a rolled central edge and on the right a cup with a central edge simple.
- Figure 6 schematically illustrates a cross-sectional view of a high-flow type valve provided with a cup according to one embodiment of the invention, showing on the left a cup with a rolled central edge and on the right a cup with a simple central edge.
- valves of the male type in which the valve is an integral part of the stem 30, part of the stem 31 of which protrudes from the valve.
- the invention can also be applied to a valve of the female type having as a valve a seat which is located in the valve body 10 and which must be actuated by an external rod (generally that of a diffuser) entering the valve through the central opening 52.
- the invention can also be used for a high-flow type valve such as that illustrated in Figure 6.
- Figure 7 schematically illustrates a cross-sectional view of a valve of the male type provided with a cup according to an alternative embodiment of the invention in which the central part comprises a rising wall followed by a frustoconical descending wall, showing at left a cup with a rolled central edge and on the right a cup with a simple central edge.
- rising and/or falling wall 563 may comprise a first rising wall that protrudes from peripheral falling portion 562, followed by a frustoconical falling wall.
- the central edge 564 of the bottom wall 56 which surrounds the central opening 52 can be located in the extension of the frustoconical descending wall.
- Figures 8A and 8B schematically illustrate a sectional view of a cup according to one embodiment of the invention before expanding ( Figure 8A) and after expanding ( Figure 8B).
- the peripheral descending part 562 may comprise an outer face 502 of a flat frustoconical shape.
- the protection zone makes it possible to limit the deformation of the central part 561, while the deformable fixing zone 51 substantially matches the shape of the neck 61, which is illustrated by the shape that cup 50 takes after expansion in FIG. 8B compared to that which it had before expansion in FIG. 8A.
- the peripheral descending part 562 can have a negative angle ⁇ , in other words a descending angle, comprised between 10 and 30 degrees, preferably between 15 and 25 degrees.
- the edge 564 can be rolled up a first time on the side of the outer face 502 of the cup 50, and a second time on the side of the inner face 501 of the cup 50.
- Figures 9A and 9B schematically illustrate a sectional view of a cup according to an alternative embodiment of the invention before expanding ( Figure 9A) and after expanding ( Figure 9B).
- the peripheral descending part 562 can comprise an outer face 502 that is concave.
- the cup 50 is more resistant to the pressure within the container 60.
- vertical and radial reinforcing ribs on the at least one of the faces of the cup, preferably the outer face 502 can be provided to reinforce the cup.
- the concave outer face 502 may have a radius of curvature R of between 4 and 20 mm, preferably between 5 and 15 mm. Even if the central part 561 deforms slightly during the attachment of the cup 50 to the container 60 and/or during the pressurization of the container 60, the angles between the different portions of the bottom wall 56 remain substantially identical. In particular, as shown in Figures 9A and 9B, the radius of curvature R of the peripheral descending part 562 remains substantially identical before and after expansion, which makes it possible to limit the loss of mechanical resistance to pressure within the container 60.
- the cup can be defined by its dimensions, in particular the following dimensions:
- the dimension H1 is defined as being the distance between the projection on the central axis A of the top of the outer face of the deformable attachment zone 51 and the projection on the central axis A of the bottom of the inner face of the descending part device 562.
- the dimension H2 is defined as being the distance between the projection on the central axis A of the top of the outer face of the deformable attachment zone 51 and the projection on the central axis A of the top of the outer face of the descending part device 562.
- the dimension H3 is defined as being the distance between the projection on the central axis A of the top of the outer face of the deformable fixing zone 51 and the projection on the central axis A of the top of the outer face of the descending wall deformable 513.
- Figure 10 schematically illustrates a sectional view of the valve of Figure 1 expanded on a container.
- the deformable attachment zone 51 allows the cup to be placed on the neck 61 of the container 60.
- the outer diameter of the cup DI may be greater than the diameter of the neck 61 so that the cup does not fall into the container 60.
- the neck 61 of the container 60 is generally rolled and the deformable fixing zone 51 surrounds the internal part of the neck 61.
- the deformable fixing zone 51 substantially matches the shape of the neck by enveloping the internal part of the neck 61, as shown in Figure 10.
- Figures 11 A and 1 IB schematically illustrate a sectional view of a cup according to two alternative embodiments of the invention.
- the rising and/or descending wall 563a, 563b can comprise a rising wall 563a followed by a descending wall 563b.
- the descending wall 563b can descend until it reaches the same axial position as that of the bottom of the rising wall 563a.
- the rising and/or descending wall 563a, 563b can be vertical as illustrated in FIG. 11A, or plane frustoconical as illustrated in FIG. 11B.
- the junction between rising wall 563a and falling wall 563b can be abrupt as shown in Figure 11B.
- Figures 12A and 12B schematically illustrate a sectional view of a cup according to two alternative embodiments of the invention.
- the rising and/or descending wall 563 makes it possible on the one hand to isolate the central part 561 from the deformable fixing zone 51, and on the other hand, it serves as a centering means for center the valve body 10, in particular in the case of fixing the crown 15 of the valve body 10 on the inner face 501 of the flat wall (565) of the central part 561.
- the rising and/or descending wall 563 corresponds to a descending wall 563 which protrudes from the peripheral descending part 562, as illustrated in FIG. 12A.
- the angle a between the peripheral descending part 562 and the descending wall 563, measured on the side of the exterior face 502, can be less than 270°, preferably between 230° and 265°, more preferably between 240° and 260° .
- the descending wall 563 can be followed by a flat wall 565 including the central opening 52 and configured to receive on the inner face 501 a valve body 10.
- This embodiment has the particular advantage of being able to fix the fixing ring 15 of the valve body 10 when the radial dimension of the fixing ring 15 is greater than the radial dimension of the flat wall 565.
- the rising and/or descending wall 563 comprises a first rising wall 563c which protrudes from the peripheral descending part 562, followed by a planar wall 563d, followed by a second rising wall 563e which protrudes from said planar wall 563d, as shown in Figure 12B.
- the rising and/or descending wall 563 can be followed by a flat wall 565 including the central opening 52 and configured to receive on the inner face 501 a valve body 10.
- Figures 13A to 13C schematically illustrate a sectional view of a male-type valve provided with a cup comprising a centering means.
- the rising and/or falling wall 563 can serve as a centering means for centering the valve body 10, in particular in the case of fixing the crown 15 of the valve body 10 on the inner face 501 of the flat wall 565 of the central part 561.
- the central portion 561 may be provided with a centering means 57 configured to allow the centering of a valve body 10 during the fixing of the valve body 10 on the inner face 501 of the central part 561, which makes it possible to obtain the same centering effect as that described in relation to the previous embodiments.
- the centering means 57 can be combined with the cups of all the previous embodiments, for example with a cup comprising a rising wall ( Figure 13B) or with a cup comprising a descending wall ( Figure 13C).
- Centering means 57 may correspond to a continuous peripheral wall formed in central portion 561. As illustrated in Figures 13A and 13C, centering means 57 may correspond to a downward peripheral protrusion from central portion 561. radial distance which separates the centering means 57 from the main axis A may be greater, preferably by no more than a few millimeters, than the radial distance which separates the end of the fixing crown 15 from the main axis A, so that the centering means 57 surrounds the fixing crown 15 when the valve body 10 is fixed on the inner face 501 of the central part 561.
- the centering means 57 may be composed of a plurality of spaced apart protrusions, which saves material by reducing the number of protrusions and/or their dimensions.
- the central part 561 can be provided with a flat wall 565 including the central opening 52 and surrounded by the centering means 57, configured to receive on the inner face 501 a valve body 10.
- the centering means 57 can be a protection zone configured to limit the deformation of the central part during the deformation of the deformable fixing zone of the cup to fix the cup on the container.
- the centering means 57 can be a rising wall which protrudes from the peripheral descending part 562.
- the rising wall serves on the one hand as a protection zone by isolating the central part 561 from the deformable attachment 51, and on the other hand, it serves as a centering means 57 to center the valve body 10.
- the valve body 10 can occupy the space of the cavity defined by the rising wall 563 and the part central 561 from the wall bottom 56 on the side of the inner face 501 so as to be centered before being fixed to the valve cup 50.
- the height of the centering means 57 may be less than the height of the fixing crown 15.
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Safety Valves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2200078A FR3131576B1 (fr) | 2022-01-06 | 2022-01-06 | Coupelle de valve pour récipient sous pression |
| PCT/EP2023/050115 WO2023131621A1 (fr) | 2022-01-06 | 2023-01-04 | Coupelle de valve pour récipient sous pression |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4460468A1 true EP4460468A1 (fr) | 2024-11-13 |
| EP4460468B1 EP4460468B1 (fr) | 2026-03-25 |
Family
ID=81448806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23700271.2A Active EP4460468B1 (fr) | 2022-01-06 | 2023-01-04 | Coupelle de valve pour récipient sous pression |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20250074690A1 (fr) |
| EP (1) | EP4460468B1 (fr) |
| CN (1) | CN118973924A (fr) |
| AR (1) | AR128205A1 (fr) |
| FR (1) | FR3131576B1 (fr) |
| MX (1) | MX2024008453A (fr) |
| WO (1) | WO2023131621A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114375278B (zh) | 2019-07-24 | 2024-04-30 | 林达尔法国两合公司 | 用于压力容器的阀杯 |
| FR3099144B1 (fr) | 2019-07-24 | 2022-01-07 | Lindal France | Valve pour récipient sous pression |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3854636A (en) * | 1973-01-15 | 1974-12-17 | Johnson & Son Inc S C | Aerosol valve for low delivery rate |
| FR2793478B1 (fr) * | 1999-05-11 | 2001-07-27 | Oreal | Dispositif de montage d'une valve sur un reservoir, et distributeur contenant un produit sous pression, equipe d'un tel dispositif |
| US7134579B2 (en) * | 2004-11-15 | 2006-11-14 | Ultramotive Corporation | RTV silicone spray system |
| WO2017021038A1 (fr) * | 2015-08-04 | 2017-02-09 | Coster Tecnologie Speciali S.P.A. | Coupelles de valve et récipients à utiliser dans des systèmes de distribution de milieu fluide |
| EP3472069A1 (fr) * | 2016-06-15 | 2019-04-24 | Coster Tecnologie Speciali S.p.A. | Système de distribution de milieu fluide et procédé d'assemblage d'un système de distribution pour un milieu fluide |
| WO2018052973A1 (fr) * | 2016-09-14 | 2018-03-22 | Crown Packaging Technology, Inc. | Générateur d'aérosol compact |
| US10934080B2 (en) * | 2017-01-17 | 2021-03-02 | Coster Tecnologie Speciali S.P.A. | Fluid medium dispensing system and a method of assembling a dispensing system for a fluid medium |
| CN114375278B (zh) * | 2019-07-24 | 2024-04-30 | 林达尔法国两合公司 | 用于压力容器的阀杯 |
-
2022
- 2022-01-06 FR FR2200078A patent/FR3131576B1/fr active Active
-
2023
- 2023-01-04 CN CN202380025830.7A patent/CN118973924A/zh active Pending
- 2023-01-04 EP EP23700271.2A patent/EP4460468B1/fr active Active
- 2023-01-04 WO PCT/EP2023/050115 patent/WO2023131621A1/fr not_active Ceased
- 2023-01-04 MX MX2024008453A patent/MX2024008453A/es unknown
- 2023-01-05 AR ARP230100022A patent/AR128205A1/es unknown
-
2024
- 2024-01-04 US US18/726,348 patent/US20250074690A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP4460468B1 (fr) | 2026-03-25 |
| MX2024008453A (es) | 2024-08-09 |
| WO2023131621A1 (fr) | 2023-07-13 |
| FR3131576B1 (fr) | 2024-04-12 |
| US20250074690A1 (en) | 2025-03-06 |
| AR128205A1 (es) | 2024-04-10 |
| FR3131576A1 (fr) | 2023-07-07 |
| CN118973924A (zh) | 2024-11-15 |
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