US20200062458A1 - Sealing device for a container neck - Google Patents

Sealing device for a container neck Download PDF

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Publication number
US20200062458A1
US20200062458A1 US16/077,839 US201716077839A US2020062458A1 US 20200062458 A1 US20200062458 A1 US 20200062458A1 US 201716077839 A US201716077839 A US 201716077839A US 2020062458 A1 US2020062458 A1 US 2020062458A1
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US
United States
Prior art keywords
membrane
neck
lip
sealing device
skirt
Prior art date
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Abandoned
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US16/077,839
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English (en)
Inventor
Michel Luzzato
Franck Hancard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novembal USA Inc
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Novembal USA Inc
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Filing date
Publication date
Application filed by Novembal USA Inc filed Critical Novembal USA Inc
Assigned to NOVEMBAL USA INC. reassignment NOVEMBAL USA INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HANCARD, Franck, LUZZATO, MICHEL
Publication of US20200062458A1 publication Critical patent/US20200062458A1/en
Abandoned legal-status Critical Current

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    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck

Definitions

  • the present invention relates to a sealing device for a container neck.
  • the invention generally relates to closures, typically made from plastic, which comprise a tubular skirt, designed to surround the neck of a container to be sealed and for their inner surface to be attached removably to the outer surface of this neck: this attachment is for example done by screwing, like in FR 2,987,607, the closures then generally being called screwed closures, or this removable attachment can be done by jamming, like in FR 2,908,746, the closures then generally being called clipped or “snapped” closures.
  • the skirt is topped by a closing wall from the periphery of which the skirt extends axially: this closing wall extends through the container neck to seal it when the skirt is attached on the neck.
  • a lip which extends from the closing wall, is arranged inside the skirt: when the skirt is attached to the neck, the outer surface of this lip, i.e., its surface turned radially away from the central axis of the skirt, rests sealingly against an inner surface of the neck so as to close this neck sealingly.
  • the outer surface of this sealing lip is generally convex to provide the most sealed possible contact with the neck, the lip then typically being described as “olive lip”.
  • U.S. Pat. No. 5,458,252 discloses a closure having a lip of this type, inside which a deformable membrane is arranged.
  • This membrane includes a central part, as well as a peripheral part connecting the central part to the lip.
  • the closure of U.S. Pat. No. 5,458,252 is particularly applicable in the field of packaging for medical use: the membrane is designed to deform during an increase in the pressure inside a container closed by the closure.
  • the central and peripheral parts of the membrane do not deform jointly, but successively: in a first phase, only the central part deforms, by articulation of a flexible hinge provided at the junction between the central and peripheral parts, which tends to reinforce the sealing of the closing of the resulting container due to the fact that the central part goes from one side to the other of the peripheral part, which remains stationary relative to the lip; then, in a second phase, since the central part is completely deformed, it is the peripheral part that deforms, by articulation of a flexible hinge that is provided at the junction between the peripheral end of the peripheral part and the sealing lip, and the axial position of which is unchanged throughout the entire deformation of the membrane, which leads to separating the lip with respect to the container and therefore breaking the sealing of the closing of the container by the closure, in particular to prevent the container from breaking by explosion.
  • the aim of the present invention is to improve lip closures, for example with an olive lip, by reinforcing the sealing of their interface with the neck of a container that they close, even in case of circumstances that are detrimental to this sealing, in particular in case of heating of the container neck and/or the closure for sterilization or other purposes.
  • the invention relates to a sealing device for a container neck, as defined in claim 1 .
  • One of the ideas at the base of the invention is to try to “repress” the lip against the inner surface of the neck after the skirt has been attached to the neck, and more generally, after the sealing device has been installed on the neck, including, if applicable, after circumstances have occurred, such as heating of the sealing device and/or the container neck for sterilization or other purposes, that are detrimental to the sealing performance of the interface between the neck and the sealing device, in particular between the neck and the lip.
  • the invention provides for integrating, into the sealing device, a bistable membrane capable of deforming between two stable configurations, while remaining axially attached, by its peripheral end, to the lip.
  • the entire membrane, except its peripheral end is arranged on one axial side of the geometric plane at which its peripheral end is fixedly connected to the lip
  • the entire membrane, except its peripheral end is arranged on the other axial side of this geometric plane: it is understood that by taking the membrane from the first configuration to the second, this membrane deforms while tending to expand the lip transversely, i.e., while tending to move the lip radially outward over the entire periphery of the lip.
  • the membrane is designed so that in the second configuration, this membrane continues to apply part of these expansion forces to the lip, which means that when the sealing device is in place on the neck, the membrane, once in the second configuration, presses the lip against the neck.
  • the membrane Due to its arrangement within the sealing device according to the invention, the membrane is provided to go from its first configuration to its second configuration under the effect of an over pressure inside the container, the intensity of this over pressure of course having to be sufficient to deform the membrane from its first configuration, which is intrinsically stable, to at least one deformed state from which the membrane tends to reach a stable state corresponding to its second configuration.
  • this over pressure inside the container is preferably obtained by reversing the bottom of the container at the end of the sealing of a container including a bottom made up of a reversible membrane, like that described in the international application published under number WO 2015/192918.
  • the sealing device according to the invention can be manufactured simply, cost-effectively and efficiently, in particular by molding plastic material either in a single piece, or in two pieces to be assembled to one another, advantageously made from the same plastic material.
  • FIG. 1 is a perspective view of a first embodiment of a sealing device according to the invention, shown in a not-yet-assembled state;
  • FIG. 2 is a longitudinal sectional view of the sealing device of FIG. 1 ;
  • FIG. 3 is a view similar to FIG. 2 , showing the sealing device of FIG. 1 in the assembled state;
  • FIG. 4 is a view similar to FIG. 3 , showing the sealing device, in the assembled state, installed on a container neck;
  • FIG. 5 is a view similar to FIG. 4 , showing the sealing device in a usage configuration, subsequent to that shown in FIG. 4 ;
  • FIGS. 6 and 7 are views respectively similar to FIGS. 4 and 5 , illustrating a second embodiment of a sealing device according to the invention
  • FIGS. 8 to 11 are views respectively similar to FIGS. 2 to 5 , illustrating a third embodiment of a sealing device according to the invention.
  • FIGS. 12 to 14 are views respectively similar to FIGS. 3 to 5 , illustrating a fourth embodiment of a sealing device according to the invention.
  • FIGS. 1 to 5 show a sealing device 1 suitable for being attached by screwing, removably, on a neck 2 of a container 3 , shown in FIGS. 4 and 5 , in which only part of this container 3 is visible.
  • the neck 2 is either integral with the rest of the container 3 , in particular when the latter is a glass or plastic bottle, or suitable for being permanently secured on a wall of the container, at an opening traversing this wall.
  • the sealing device 1 and the neck 2 have respective shapes extending around central longitudinal axes that are substantially combined, under reference X-X, when the sealing device 1 is attached on the neck 2 like in FIGS. 4 and 5 .
  • the rest of the description is oriented considering that the terms “upper” and “top” correspond to a direction globally parallel to the axis X-X and going from the main body of the container 3 toward the free end of its neck 2 , i.e., a direction oriented toward the top part of the figures, while the terms “lower” and “bottom” correspond to a direction in the opposite sense.
  • the adjective “inner” designates a direction transverse to the axis X-X that is oriented toward this axis
  • the adjective “outer” designates a direction transverse to the axis that is oriented in the opposite sense.
  • the neck 2 includes a tubular body 4 with a circular base, with axis X-X. As shown in FIGS. 4 and 5 , the body 4 delimits, at its upper end, a locking ring 5 at which the liquid contained in the container 3 , or more generally the content of this container, is intended to be poured. On the outer surface of the body 4 , the neck 2 includes a thread 6 protruding from an outer surface 4 A of the body 4 .
  • the sealing device 1 includes two separate components which, to position the sealing device in a functional state illustrated in FIG. 3 , are securely assembled to one another. These two components are a closure 10 and an insert 20 .
  • the closure 10 when the sealing device 1 is considered to be attached on the neck 2 , is open at its lower end and closed at its upper end by a closing wall 11 .
  • This closing wall 11 extends across, or perpendicular to, the axis X-X and has a solid discoid shape that is substantially centered on the axis X-X.
  • the closure 10 also includes a tubular skirt 12 , which is centered on the axis X-X and which extends axially downward from the outer periphery of the closing wall 11 .
  • the skirt 12 thus laterally has an outer surface 12 A and an inner surface 12 B, which, in the example considered in the figures, both have a circular base, centered on the axis X-X.
  • the closing wall 11 extends both above the neck 2 , while in particular being positioned axially over the locking ring 5 , and across this neck, while in particular being arranged across the entire opening of this neck. Furthermore, the skirt 12 outwardly surrounds the body 4 of the neck 2 , its inner surface 12 B being across from the outer surface 4 A of this body 4 .
  • the skirt 12 is inwardly provided with removable attachment means to the neck 2 , these attachment means being made up, in the embodiment considered here, of a thread 13 that protrudes from the inner surface 128 of the skirt and that winds in a helix on this inner surface 128 .
  • the attachment of the sealing device 1 on the neck 2 consists of screwing the thread 13 around the body 4 of the neck, this thread 13 engaging the thread 6 of this body 4 , until the closing wall 11 is downwardly pressed against the locking ring 5 , as shown in FIGS. 4 and 5 .
  • removing the sealing device 1 from the neck 2 consists of unscrewing the thread 13 with respect to thread 6 , until disengaging it therefrom.
  • the closure 10 further includes an annular lip 14 , which extends axially downward from the closing wall 11 , centered on the axis X-X, inside the skirt 12 : when the sealing device 1 is attached on the neck 2 like in FIGS. 4 and 5 , an outer surface 14 A of the lip 14 rests sealingly against an inner surface 48 of the body 4 of the neck 2 in order to seal the closing of this neck by the sealing device [ES1]
  • the outer surface 14 A of the lip 14 is outwardly convex, in particular in order to increase the expanse and/or intensity of the contact between the lip 14 and the body 4 of the neck 2 .
  • the inner surface 12 B of the skirt 12 is provided, at its upper end, with a protruding heel 15 , which locally restricts the inner periphery of the skirt 12 relative to the rest of the inner surface 128 of the skirt.
  • this heel 15 fittingly hugs the outer periphery of the locking ring 5 of the neck 2 , the neck thus being, in a way, pinched between the lip 14 and the heel 15 .
  • the insert 20 in turn comprises a membrane 21 and an annular ring 22 , which surrounds the periphery of the membrane 21 .
  • the membrane 21 extends globally transversely to the axis X-X, while being arranged inside the skirt 12 , and the central axis of the ring 22 is substantially combined with the axis X-X, such that, for convenience, this central axis of the ring 22 is also designated hereinafter under reference X-X.
  • the ring 22 is designed, in particular due to its outer sizing, to be engaged and attached inside the lip 14 of the closure 10 so as to provide the stationary assembly between the closure 10 and the insert 20 .
  • the ring 22 is fitted, in particular snap-fitted, inside the lip 14 , so as to be securely lammed against the inner surface 14 B of the lip 14 .
  • the inner surface 14 B of the lip 14 has an undercut that participates in keeping the ring 22 in position inside the lip 14 in the assembled state of the sealing device 1 .
  • other assembly developments can be considered, such as welding, gluing, clipping, etc. of the insert in the closure.
  • the attachment of the ring 22 inside the lip 14 is reinforced by peripheral pinching of the ring 22 , subject to a radial deformation of the lip 14 , oriented toward the axis X-X, when the sealing device 1 is installed on the neck 2 , like in FIGS. 4 and 5 .
  • the membrane 21 includes two concentric parts, namely a central part 23 and a peripheral part 24 , which, when the insert 20 is assembled to the closure 10 , are substantially centered on the axis X-X.
  • the central part 23 has a globally discoid shape and the peripheral part 24 has a globally annular shape.
  • the central part 23 and the peripheral part 24 are joined to one another by a flexible hinge 25 that runs all the way around the axis X-X: thus, the outer periphery of the central part 23 is, over its entire expanse, connected to the inner periphery of the peripheral part 24 by the flexible hinge 25 , which thus directly connects these outer and inner peripheries to one another.
  • the flexible hinge 25 makes it possible to locally bend the membrane 21 , by relative articulation between its central part 23 and its peripheral part 24 around a geometric articulation axis running all the way around the axis X-X.
  • the peripheral part 24 constitutes a peripheral end 21 A of the membrane 21 , while forming a flexible junction hinge 26 with the ring 22 .
  • This flexible hinge 26 extends all the way around the axis X-X and allows the relative articulation between the peripheral part 24 and the ring 22 around a geometric articulation axis that runs all the way around the axis X-X.
  • this peripheral end 21 A and this ring 22 are stationary relative to one another in the direction of the axis X-X, such that, in the assembled state of the sealing device 1 like in FIG. 3 , the peripheral end 21 A of the membrane 21 is connected to the lip 14 of the closure 10 in a stationary manner in the direction of the axis X-X, running over the entire inner periphery of the lip 14 at a geometric plane P that is transverse, or even, like here, perpendicular to the axis X-X.
  • peripheral end 21 A of the membrane 21 constitutes the part of the flexible hinge 26 that remains axially stationary relative to the lip 14 , the rest of this flexible hinge 26 being made up of a peripheral strip of the peripheral part 24 of the membrane 21 , this peripheral strip connecting the peripheral end 21 A to the rest of the peripheral part 24 .
  • the membrane 21 is deformable between two stable configurations, i.e., a first configuration, shown in FIGS. 3 and 4 , and a second configuration, shown in FIG. 5 .
  • first configuration the entire membrane 21 , except its peripheral end 21 A, is arranged on the lower side of the geometric plane P, with its central part 23 axially further from this geometric plane P than its peripheral part 24 .
  • second configuration the entire membrane 21 , except its peripheral end 21 A, is arranged on the upper side of the geometric plane P, with its central part 23 axially further from this geometric plane P than its peripheral part 24 .
  • peripheral end 21 A is axially stationary at the geometric plane P
  • the axial positioning between this peripheral end 21 A and the geometric plane P is unchanged when the membrane 21 is deformed between its first and second configurations.
  • the deformation of the membrane 21 from its first configuration to its second configuration causes the membrane 21 to apply, to the lip 14 through the ring 22 , transverse expansion stresses of the lip 14 , i.e., stresses, globally radial to the axis X-X and oriented outward, that tend to separate the lip 14 outward over the entire periphery of this lip.
  • the membrane 21 is designed such that, once it is in its second deformation configuration, the membrane keeps at least part of the aforementioned expansion forces, thus firmly pressing the lip 14 against the neck 2 , which reinforces the sealing of the contact between the outer surface 14 A of the lip 14 and the inner surface 4 B of the body 4 of the neck 2 compared to the sealing of this contact when the membrane 21 is in its first configuration.
  • the membrane 21 occupying the second configuration thus applies, to the lip 14 , a force F′ that is transverse and centrifugal with respect to the axis X-X, as indicated in FIG. 5 .
  • the ability of the membrane 21 to thus press the lip 14 against the neck 2 once this membrane has entered the second configuration results from the structure and the arrangement of its central part 23 , its peripheral part 24 and its flexible hinge 25 .
  • an over pressure must be created inside the container 3 : due to its arrangement inside and across the neck 2 , the membrane 21 is sensitive to a fluid force F, indicated in FIG. 5 , generated inside the container 3 , in particular inside the neck 2 , by the aforementioned over pressure.
  • the origin of this over pressure is not limiting with respect to the invention, inasmuch as the intensity of the over pressure is sufficient to deform the membrane 21 from its first configuration to its second configuration, or at the very least to an intermediate deformed state from which the membrane 21 will tend, by return toward a stable state, toward its second configuration rather than toward its first configuration.
  • the aforementioned over pressure results from the reversal of a wall, in particular the bottom, of the container 3 .
  • the central part 23 of the membrane 21 is provided, on its upper surface, with a spacer 27 .
  • this spacer 27 for example has an annular shape, centered on the axis X-X and with a circular base. When the membrane 21 goes from its first configuration to its second configuration, the spacer 27 comes axially closer to the closing wall 11 .
  • the axial dimensioning of the spacer 27 is provided so that, when the membrane 21 reaches the second deformation configuration, the spacer 27 abuts axially against the closing wall 11 , thus constraining the membrane 21 downward, toward the geometric plane P: this stress advantageously reinforces the pressing action of the lip 14 against the neck 2 by the membrane 21 . and thus the sealing of the contact between the lip and the neck.
  • the manufacturing specificities of the sealing device 1 described thus far are not limiting with respect to the invention.
  • one practical embodiment consists of producing, on the one hand, the closure 10 in a single piece by molding a plastic material, and on the other hand, the insert 20 in a signal piece by molding a plastic material, which is advantageously the same as that of the closure 10 .
  • the closure 10 and/or the insert 20 are advantageously made from a semi-rigid plastic material, such as polypropylene and/or polyethylene, preferably shaped by molding.
  • the insert 20 and the ring 22 the central part 23 and the peripheral part 24 are molded integrally together.
  • the ring 22 , the central part 23 and the peripheral part 24 are advantageously integral together.
  • this closure corresponds to pre-existing embodiments: thus, the sealing device 1 can be obtained by assembling a pre-existing closure, is making up the closure 10 , with the insert 20 .
  • FIGS. 6 and 7 show an alternative embodiment of the sealing device 1 , in the form of a sealing device 101 .
  • the sealing device 101 comprises a closure 110 that is functionally, or even, like here, structurally similar to the closure 10 of the sealing device 1 .
  • the closure 110 will therefore not be described in more detail here.
  • the sealing device 101 also comprises an insert 120 including a membrane 121 and a ring 122 .
  • the ring 122 is functionally, or even, like here, structurally similar to the ring 22 of the insert 20 of the sealing device 1 .
  • the ring 122 will therefore not be described here in more detail.
  • the membrane 121 differs from the membrane 21 of the insert 20 by the fact that, rather than being made in the form of concentric parts like the central part 23 and the peripheral part 24 of the membrane 21 , this membrane 121 is made up of a web 128 . As clearly shown in FIGS. 6 and 7 , this web 128 has, outside its peripheral end corresponding to the peripheral end 121 A of the membrane 121 , a substantially homogeneous thickness, with the understanding that this thickness corresponds to the smallest dimension of the three dimensions of the web 128 and is delimited between the lower and upper surfaces of the web 128 .
  • the web configuration of the membrane 121 allows the latter to deform between the first and second configurations, by continuous bending of the web 128 , as shown in FIGS. 6 and 7 .
  • the behavior of the membrane 121 is similar to that of the membrane 21 , in particular in connection with the application to the membrane 121 of the fluid force F and the application by the membrane 121 of the force F′ to the sealing lip of the closure 110 .
  • FIGS. 8 to 11 show an alternative embodiment to the sealing device 1 , in the form of a sealing device 201 .
  • the sealing device 201 includes a closure 210 including a skirt 212 and a lip 214 that are functionally, or even, like here, structurally similar to the skirt 12 and the lip 14 of the closure 10 of the sealing device 1 .
  • the closure 210 differs from the closure 10 by the fact that, unlike the latter, the closure 210 is not, at its upper end, closed by a closing wall similar to the closing wall 11 . More specifically, the closure 210 includes, at its upper end, a discoid crown 211 , which is centered on the axis X-X and which is open-worked in its central region, i.e., crossed all the way through by a hole 211 A.
  • the skirt 12 and the lip 214 extend axially downward from the crown 211 , similarly to the arrangement of the skirt 12 and the lip 14 from the peripheral region in question of the closing wall 11 of the closure 10 .
  • the crown 211 extends axially over the locking ring 5 of this neck 2 .
  • the closure 210 comprises a membrane 221 , which, functionally, is similar to the membrane 21 of the closure 10 , in that this membrane 221 is deformable between the first and second configurations previously defined.
  • the membrane 221 differs structurally from the membrane 21 by the fact that its peripheral end 221 A is joined directly to the lip 214 , the membrane 221 thus protruding from the inner surface 214 B of the lip 214 , as clearly shown in FIGS. 8 to 11 .
  • the membrane 221 is not associated with a ring, like the ring 22 of the sealing device 1 , and is not integrated into a separate insert of the closure, like the insert 20 of the sealing device 1 : on the contrary, the membrane 221 is integrated into the closure 210 , without inserting an intermediate part between this membrane 221 and the lip 214 .
  • the membrane 221 is advantageously integral with the lip 214 , in particular molded integrally with this lip.
  • the hole 211 A of the crown 211 is arranged axially over the membrane 221 , such that the upward closing of the closure 10 is provided jointly by the crown 211 and the membrane 221 , even if, like in the example embodiment considered in the figures, this crown 211 and this membrane 221 are not located at the same level along the axis X-X.
  • the sealing device 201 behaves similarly to the sealing device 1 , in particular in connection with the application on the membrane 221 of the fluid force F to take this membrane from its first deformation configuration to its second deformation configuration, as well as in connection with the application to the lip 214 of the force F′ by the membrane 221 when the latter occupies its second deformation configuration.
  • the closure 210 of the sealing device 201 does not correspond to a pre-existing closure.
  • the manufacture, in particular by molding, of the closure 210 therefore requires specific arrangements.
  • the sealing device 201 includes an attached part, intended to close the hole 211 A of the crown 211 : this attached part thus constitutes a closing cap 230 , which, in FIG. 8 , is shown disassembled from the closure 210 , while in FIGS. 9 to 11 , this cap 230 is assembled to the closure 210 .
  • This assembly consists of attaching the cap 230 to the hole 211 A of the crown 211 , through any appropriate means, for example by welding, gluing, jamming, etc.
  • the cap 230 does not participate in the sealed closing of the neck 2 , this cap can be made from quite varied materials: by way of non-limiting example, the cap 230 can be made from a multilayer complex, having reinforced capacities for protecting the content of the container 3 from oxygen and/or ultraviolet rays, more generally reinforced capacities for preserving the product contained in the container 3 . Irrespective of its component material, the cap 230 can advantageously integrate a marking on its upper surface, such as an advertisement.
  • FIGS. 12 to 14 show an alternative embodiment to the sealing device 101 , in the form of a sealing device 301 .
  • the sealing device 301 includes a closure 310 that is functionally similar to the closure 110 of the sealing device 101 , in that this closure 310 includes a closing wall 311 , a skirt 312 and a lip 314 that are respectively similar to those of the closure 110 .
  • the sealing device 301 also includes a membrane 321 that is similar to the membrane 121 of the sealing device 101 , with the sole structural difference that the membrane 321 is, at its peripheral end 321 A, attached directly to the lip 314 , according to considerations similar to the junction of the membrane 221 to the lip 214 . More specifically, as an alternative to the embodiment provided for the junction between the lip 214 and the membrane 221 of the sealing device 201 , the membrane 321 does not protrude from an inner surface of the lip 314 , but protrudes from a lower end 314 C of this lip 314 , as clearly shown in FIG. 12 .
  • the sealing device 301 integrates a fluid 340 , which, as shown in FIGS. 12 to 14 , fills a free volume V310 of the closure 310 .
  • This free volume V310 is limited jointly by the closing wall 311 , the lip 314 and the membrane 321 while being closed by the latter substantially hermetically.
  • the fluid 340 is compressed, reducing the free volume V310, and once the membrane 321 is in the second deformation configuration like in FIG. 14 , this fluid 340 remains compressed, such that it constrains the membrane 321 downward.
  • this compressed fluid is, in a way, similar to that of the spacer 27 of the sealing device 1 , in that, by constraining the membrane 321 downward while the latter occupies its second deformation configuration, the force F′ applied by this membrane 321 on the lip 314 is reinforced in order to press this lip against the neck 2 .
  • the fluid 340 is a gas
  • the filling of the free volume V310 with the fluid 340 is done during the manufacturing of the closure 310 , in particular during its molding.
  • the presence, in the free volume V310 of the closure 310 , of the fluid 340 tends to reinforce the sealing at the interface between the sealing device 301 and the neck 2 due to the fact that the lip 314 presses more on this than in the absence of such a fluid, as long as the fluid is present in a compressed state, i.e., with a pressure at least slightly greater than the atmospheric pressure, independently of the deformation configuration of the membrane 321 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US16/077,839 2016-02-15 2017-02-14 Sealing device for a container neck Abandoned US20200062458A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1651197 2016-02-15
FR1651197A FR3047728B1 (fr) 2016-02-15 2016-02-15 Dispositif de bouchage pour un col de recipient
PCT/EP2017/053196 WO2017140637A1 (fr) 2016-02-15 2017-02-14 Dispositif de bouchage pour un col de récipient

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US20200062458A1 true US20200062458A1 (en) 2020-02-27

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Application Number Title Priority Date Filing Date
US16/077,839 Abandoned US20200062458A1 (en) 2016-02-15 2017-02-14 Sealing device for a container neck

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Country Link
US (1) US20200062458A1 (de)
EP (1) EP3416898A1 (de)
CN (1) CN108602591A (de)
BR (1) BR112018014554A2 (de)
CA (1) CA3014829A1 (de)
FR (1) FR3047728B1 (de)
MX (1) MX2018009168A (de)
WO (1) WO2017140637A1 (de)

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Publication number Priority date Publication date Assignee Title
CN114787045A (zh) * 2020-03-24 2022-07-22 赫斯基注塑系统有限公司 用于容器的封闭装置

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EP3416898A1 (de) 2018-12-26
CN108602591A (zh) 2018-09-28
BR112018014554A2 (pt) 2018-12-11
WO2017140637A1 (fr) 2017-08-24
FR3047728B1 (fr) 2019-08-09
CA3014829A1 (fr) 2017-08-24
MX2018009168A (es) 2018-11-19
FR3047728A1 (fr) 2017-08-18

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