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
• • 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
  • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
  • B65D83/62—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like

Definitions

• the invention relates to a valve cup for a pressure vessel.
• the valve cup has an outer face and an inner face and is provided
• valve cups according to the preamble are commonly used for pressure vessels, in particular for aerosol generators.
• 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 seal so that the valve is closed.
• the spring and the valve it is essential to have an access opening before the final assembly.
• the cup is provided with a dome which is crimped on the top of the valve body provided for this with an annular allowance at its top. This method works very well when the cup is metallic.
• the current trend is to eliminate metal parts and replace them where possible with polymer in order to facilitate the recycling of aerosol dispensers. Valves are therefore known in which the cup is also made of polymer.
• valve body is fixed to the cup by snap-fastening.
• document FR 2 508 136 A1 will be cited. This requires more complex molds to produce, on the one hand, the snap-on tabs on the cup or the body of valve and on the other hand the corresponding recesses on the other part.
• the parts must be oversized to take into account the height of the binding.
• the aim of the invention is to provide an economical cup to manufacture. Another objective is to design the cup which, when used for a male valve, at least partially protects the protruding part of the stem of a male valve.
• valve cup of the invention in which the bottom wall comprises at least one frustoconical peripheral part, the outer face of which is concave.
• the cup is preferably configured to receive on the inner face a valve body.
• the inner face of the valve cup can be provided with means for fixing a valve body.
• These means can in particular be a material to which the valve body can be glued or welded.
• the bottom wall may include a flat central part located between the frustoconical peripheral part and the central opening. Although this flat central part can have advantages, in particular for fixing a valve body, it is however not essential.
• the edge of the bottom wall which surrounds the central opening may be in alignment with the frustoconical peripheral part or, if the bottom wall includes a flat central part, in alignment with said flat central part.
• the edge can be in the same frustoconical surface as the peripheral part or in the same plane as the central part.
• provision can be made for the edge of the bottom wall which surrounds the central opening to be rolled up, forming a rolled edge, preferably rolled up on the side of the outer face of the cup.
• the edge of the cup surrounding the central opening is located at a distance, preferably above, from the bottom wall.
• the bearing edge of the cup may be provided with an annular cavity into which the neck of a housing can penetrate. This solution will be preferred for example if an O-ring is placed between the cup and the neck of the housing. Otherwise, the peripheral end of the supporting edge may be in the form of a flat ring and / or a ring whose wall is inclined towards the center of the cup. In other words, the bearing edge does not descend after reaching its highest point.
• the inclined wall may for example be frustoconical or partially toric. Its inner face preferably has substantially the dimensions and shape of the neck of the housing for which it is intended.
• the inner face of the cup at least can be made of polymer, preferably polypropylene or another polyolefin (PE, PET, TPE), virgin, recycled or bio-based. This allows on the one hand to serve as a gasket if the cup is attached to the housing by expanding, and on the other hand to weld a valve body on the inner face of the cup as will be shown below.
• the outer face of the cup at least may be metallic, preferably aluminum or tinplate. This makes it possible to fix the cup by expansion. In addition, this metal layer gives the cup sufficient rigidity to withstand the pressure prevailing in the pressure vessel. If necessary, reinforcing ribs can be provided on at least one face of the cup, preferably the outer face.
• the invention also relates to a valve provided with a cup according to the invention.
• a valve consists of a cup of the invention, of a valve body in which are placed a spring, a valve and a valve seal, the valve body being fixed on the inner face of the cup.
• the valve gasket is pressed against the inner face of the bottom wall of the cup, surrounding the central opening, and the valve body is fixed on the inner face of the bottom wall by welding or by gluing.
• the valve body can be welded to the flat central part of the bottom wall or to the frustoconical peripheral part of the bottom wall.
• the valve When the valve is a male valve, the valve consists of the nozzle and a protruding part of the nozzle protrudes from the outer face of the cup through the central opening.
• at least the lower part of the projecting part of the nozzle preferably at least half of this projecting part, is located in the cavity defined by the plane passing through the top of the bearing edge, the descending wall and the back wall.
• the entire protruding part of the nozzle is located in the cavity.
• the cavity is preferably configured to be closed at most late after conditioning the pressure vessel by a removable protection, preferably a peelable film or a cap.
• the valve body may include a tubular body provided
• the tubular body may include a cylindrical wall provided at its upper end with the tapered edge and extending at the other end by a wall tapering away from the tapered edge.
• Fig.1 an exploded view of a male-type valve provided with a cup according to the invention
• Fig. 2 a sectional view of the valve of FIG. 1;
• Fig. 3 a sectional and perspective view (a) of the valve body of the valve of FIG. 1, and
• Fig. 4 a sectional and perspective view of the valve cup of FIG. 1;
• Fig. 5 a sectional view of a female-type valve provided with a cup according to the invention, showing (a) on the left a cup with a rolled central edge and (b) on the right a cup with a single central edge;
• Fig. 6 a sectional view of a high flow type valve provided with a cup according to the invention, showing (a) on the left a cup with a rolled central edge and (b) on the right a cup with a single central edge ;
• Fig. 7 a sectional view of a valve of the male type provided with a cup according to the invention, the bottom of which consists exclusively of a frustoconical part, showing (a) on the left a cup with a rolled central edge and (b) on the right a cup with a simple central edge;
• Fig. 8 a sectional view of a first cup with a rolled central edge and short peripheral edge
• Fig. 9 a sectional view of a second cup with a rolled central edge and an enveloping peripheral edge
• Fig. 10 a sectional view of a third cup with a simple central edge and a short peripheral edge
• Fig. 11 a sectional view of a fourth cup with a short peripheral edge and whose bottom consists exclusively of a frustoconical part, showing (a) on the left a cup with a rolled central edge and (b) on the right a cup with a single central edge;
• Fig. 12 is a sectional view of the valve of Figure 1 expanded onto a housing forming a pressure vessel.
• the invention relates to a valve cup for a valve (1) for a pressure vessel.
• the valve (1) consists mainly of:
• Globe valves are sealed by a valve which must be moved away from the valve seal to allow product to exit the valve.
• the product leaves the valve through a small tube, called a stem or rod, which passes through a central opening in the cup.
• the valve (1) of the invention can be used in all positions.
• the valve is shown with the stem or the access opening to the female valve facing upwards.
• the references “up” / “down” or “upper” / “lower” have only a relative value in connection with 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 so in use.
• the valve extends longitudinally relative 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) forms a separation between the side of the valve intended to be placed inside the housing and the other side intended to be outside the housing.
• the terms “inside” and “outside” refer to the elements located on the inside or outside of the cup.
• the terms “internal” and “external” refer to a particular component (in particular the valve body) and define what is in or outside said component, regardless of whether it is a component located on the inner or outer face of the cup.
• 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 out of the valve.
• the invention can also be applied to a female-type valve having as valve a seat which is located in the valve body and which must be actuated by an external rod (generally that of a diffuser. ) entering the valve through the central opening.
• the invention can also be used for a valve of the high flow type such as that illustrated in FIG. 6.
• the term “stem” is used to designate a stem provided with a valve by forming a valve stem. male or male stem, while the term “stem” is used more generally to designate the small outlet tube which passes through the central opening of the cup, whether this stem is part of a male valve stem or a diffuser for female valve.
• 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 (1 1) and the bottom wall (12) together define an internal chamber (13).
• Vertical ribs (131) can be provided in the bottom of the internal chamber, near the bottom wall. These ribs project radially from the tubular body towards the center of the internal chamber forming a receiving space in which a first end of the spring (20) can be received and retained radially.
• a fixing lug (14) can be provided on the outer face of the bottom wall (12) to fix, for example, a dip tube or anti-sagging means.
• This post (14) is tubular in shape and surrounds the entrance opening (121).
• the wall of the tubular body (1 1) narrows in the part carrying the vertical ribs (131).
• this part can be frustoconical.
• the tubular body (1 1) 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 portion contributes to reducing the cost of manufacturing the valves of the invention.
• At least one opening (1 12) can be provided in the tubular body (1 1), which opening forms a passage bringing the outer face and the inner face of the tubular body into contact. This opening, which is not compulsory, serves as an additional gas outlet to improve the quality of the spray.
• the second end of the tubular body (1 1) ends with a tapered edge (11 1). 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 the 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 annular edge (upper face) (152) of the fixing ring (15) is preferably provided with at least one extra thickness of material going all the way around the ring and serving as an energy director during ultrasonic welding of the ring. valve body on the cup. In the example shown here, there are two material allowance rings (152a, 152b).
• the cup (50) consists of a plate provided
• peripheral support edge (51) intended to place the cup on a housing not shown
• the cup has a convex inner face (501) and a concave outer face (502).
• the descending wall (55) and the bottom wall (56) form a cavity (503) on the outer face (502) of the cup which is limited by the plane passing through the top of the bearing edge (51), which apex corresponding to the part of the bearing edge furthest from the central opening (52), considered along the central axis (A).
• the descending wall (55) can be substantially cylindrical as in the examples presented here, or slightly frustoconical. It serves on the one hand to move the central opening (52) away from the bearing edge (51) by helping to make the cavity (503) deeper, and on the other hand, in certain cases, to fix the cup to the housing neck, especially in the event of expansion.
• the domed bottom wall (56) is divided into a flat central portion (561) surrounding the central opening (52) and an inclined peripheral portion (562) located between the flat central part (561) and the descending wall (55).
• the peripheral part (562) is preferably frustoconical.
• the cup can also have an entirely frustoconical bottom. The inclination of the frustoconical part is such that the inner face of the bottom wall is convex and / or that the outer face of the bottom wall is concave.
• the inclination of the frustoconical part (562) on the one hand serves to move the central opening (52) away from the bearing edge (51) and on the other hand allows the cup to resist the pressure prevailing in the container under pressure.
• the supporting edge (51) is used to place the cup on the neck (61) of the housing (60).
• the outer diameter of the supporting edge must be greater than the diameter of the neck so that the cup does not fall into the housing.
• the neck of the housing is generally rolled up and the supporting edge surrounds at least the inner part of the neck. It may be preferable for the supporting edge to surround the collar on both sides of its top.
• the supporting edge (51) forms an enveloping annular cavity (511) into which the neck of the housing can penetrate. This is the case with the cup in Figure 9.
• the supporting edge (51) substantially conforms to the shape of the neck by enveloping it beyond the top of the neck.
• the latter When a specific seal is provided between the cup and the neck of the housing, the latter is preferably placed in the annular cavity (51 1) of the cup in FIG. 9. It is then necessary to compress the seal during expansion. In such a case, it is common to exert a force which may be in the order of 75 kg on the cup when expanding.
• the inner face (501) of the cup may be provided with a layer (54) which can serve as a seal.
• this layer can be made of polymer, preferably polypropylene or another polyolefin (PE, PET, TPE), virgin, recycled or biobased, of food grade or not.
• PE polypropylene
• PET polyolefin
• biobased of food grade or not.
• the force exerted on the cup during attachment serves mainly to hold it in place and does not need to be very great. It is therefore possible to dispense with the annular cavity (51 1), the bearing edge simply having to be sufficient to retain the cup despite the pressure exerted to hold the cup in place. This measure
• the edge (563) of the bottom wall (56) surrounding the central opening (52) is in alignment with this bottom wall, that is to say that 'it is in the plane of the flat central part (561), or in the same frustoconical envelope as the frustoconical peripheral part (562) if there is no flat central part.
• This is the case of the cups shown on the right in Figures 5, 6, 7 and 11, or on the cup of Figure 10.
• this solution has the drawback that a remainder of product which would have fallen into the cup could be in contact with the sharp edge of the edge of the cup at the level of the central opening at the risk of this edge corroding if the cup is at least partly metallic.
• edge (564) of the central part (561) forming a rolled edge (521).
• This rolled edge is preferably straightened towards the outer face of the cup as shown on the left in Figures 5, 6, 7 and 11, or on the cup of Figures 2, 4, 8 and 9.
• Figures 5 to 7 and 11 it should be understood that they each represent two types of cups, and that a cup has either a single edge (as shown to the right of the figures) or a turned-up edge (as shown to the left of the figures).
• the valve cup is therefore preferably configured so that the valve body is fixed on a convex or planar part of its inner face, but not in a concave part as in the state of the art.
• the central opening (52) on the outside face (502) of the cup is sufficiently low in the cavity and away from the plane defined by the top of the bearing edge, to allow the projecting part of the stem (31) to be at least partly located in said cavity (503).
• the entrance to the central opening (52) on the inner face of the cup is at the lowest level of the cup, and at the level furthest from the plane formed by the top of the bearing edge.
• the product outlet rod leaves the valve body (10) and enters this central opening (52) at the lowest level of the inner face of the cup.
• the interface between the central opening (52) and the internal chamber (13) of the valve body is located at the lowest level of the internal face of the cup. This does not necessarily imply that the valve body is also attached to the lowest level of the cup. Indeed, if the fixing ring (15) is not fixed on the flat central part (561), but on the frustoconical peripheral part, the interface between the cup and the valve body is located at a higher level than the interface between the central opening (52) and the internal chamber (53).
• the rod which passes through the central opening (52) can carry the valve to be inserted into the valve body if it is a male type valve (male valve stem), or it can be carried by a diffuser intended to actuate the valve if it is a female type valve.
• the cup can be made entirely of polymer. It is also possible that it consists, 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 cup When the cup is made at least partly of metal, it is possible to expand it on the neck of the housing. In this case, the descending wall (55) is deformed outwardly of the cup cavity. This operation can cause a slight deformation of the cup and a rise of the central opening (52) and consequently of the stem (30) or of the seat of the valve. This slight rise can be taken into account when choosing the stem or diffuser to use to open the valve.
• the cup is glued or welded to the housing.
• the fixing can be done at the support edge and / or the descending wall.
• the cup can be defined by its ribs, including the following ribs:
• H1 Total height of the cup defined as being the distance between the projection on the central axis (A) of the top of the outer face of the bearing edge (51) and the projection on the central axis (A) of the face interior of the cup at the central opening (52);
• H4 Contact height before mounting the cup on the housing defined as the distance between the projection on the central axis (A) of the top of the stem (31) and the projection on the central axis (A) of the top of the outer face of the bearing edge (51);
• the stem (30) is of current form. It consists of a cylindrical wall (31) open at its upper end (311) and closed at its lower end, forming an outlet channel for the product.
• One or more orifices (312) placed at the bottom of the outlet channel pass through radially 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 product outlet rod.
• This cylindrical wall continues with the part serving as a valve which comprises a crown (32) of larger diameter having on its external face vertical channels or vertical ribs allowing the product to bypass the crown.
• the outer casing of this ring has a diameter slightly smaller than the inner diameter of the tubular body (11) of the valve body so that it can enter the latter while being guided.
• the crown (32) On its upper annular face, the crown (32) is provided with a sealing rib (321) to seal with the valve seal (40).
• the crown (32) continues downwards through a guide pin (33) intended to cooperate with the second end of the spring (20).
• the seat of female valves and the grommet of high flow valves are also common.
• the valve seal (40) is also a classic part. This is an annular seal, the internal diameter of which is chosen to tightly enclose the cylindrical wall (31) of the stem or the stem of a diffuser. The outer diameter is chosen so that the entire tapered edge (111) of the tubular body of the valve body can be sealed against the valve seal (40).
• the valve seal takes place in the space delimited on the one hand by the internal face of the fixing ring and on the other hand by the transverse wall (151).
• the spring is wedged between the bottom wall (12) of the valve body and the guide pin (33) of the stem or of the seat.
• the male valve of the invention is assembled as follows.
• the spring (20) is placed in the bottom of the internal chamber (13) with its first end located between the vertical ribs (131).
• the valve seal (40) is mounted on the stem (30) so on the one hand that it plugs the orifices (312) of the stem and on the other hand that it bears tightly against the sealing rib (321).
• the stem / seal assembly is inserted into the valve body by the guide pin (33) so that the latter (33) enters the second end of the spring (20).
• the cup is then put in place by passing the free end of the stem through the central opening (52).
• the cup is brought closer to the valve body until the annular wafer (152) contacts the interior face (54) of the cup.
• the valve seal (40) bears tight against the tapered edge (11 1). All that remains is to weld the cup and the valve body at the level of the annular section (152). This welding can be carried out by any suitable means, and in particular by ultrasonic welding or by rotary welding.
• the cup is substantially planar at the level of the valve body and around this valve body.
• the height of the internal face of the fixing ring is substantially identical to the thickness of the valve seal (40).
• the tapered edge (1 11) helps to press the seal in a sealed manner against the inner face of the cup.
• the seal between the cup (50) and the valve body (10) is therefore ensured by the valve seal crushed against the inner face (54) of the cup by the tapered edge (11 1), forming an annular seal all around the central opening (52).
• the weld at the interface between the fixing ring and the cup therefore does not need to be waterproof. It must only hold the valve body against the cup against the effect of the spring (20) and ensure a good plating of the valve seal (40) against the inner face (54) of the cup. It is therefore possible that the weld is not continuous.
• the cup is not flat and in particular that the central opening (52) is located in the center of the frustoconical peripheral part (562) of the bottom wall.
• the outer layer (53) is metallic
• the concave shape of the outer face (53) of the cup and the convex shape of the inner face (54) may be sufficient to obtain a sufficiently rigid cup.
• such a measure may prove to be insufficient in certain cases, in particular when the cup is made exclusively of polymer.
• Vertical and radial reinforcing ribs can then be provided on at least one of the faces of the cup, in particular on the outer face (53).
• valve body and cup must be compatible if the valve body is to be welded to the cup.
• polypropylene, or other polyolefins will be chosen for the valve body and the cup or the polymer layer of the cup.
• the valve body and the cup are not necessarily made from the same polymer.
• valve according to the invention lies in the fact that no part can be ejected from the valve. Indeed, all the parts are located on the side of the inner face of the cup and none is dimensioned to pass through the central opening. The weld between the valve body and the cup is not subjected to any tensile force. It therefore does not need to be particularly resistant.
• fixing the valve body on the inner face of the convex cup it is no longer necessary to provide, as in the state of the art, a fixing dome intended to crimp the cup on the fixing ring. (15) of the valve body. This has two major advantages. On the one hand, this saves the material required for stamping the dome.
• the part of the stem which protrudes out of the valve and on which the diffuser must be fixed is located at least partly inside the cavity formed by the cup as shown. indeed Figures 2 and 7. Even if the cup is deformed during expansion on the housing and / or during pressurization, and the central opening is thereby slightly raised, the protruding part of the stem remains at least largely sheltered, tucked inside the cavity formed by the cup.
• the cup can be configured to allow the attachment of a removable protection on its upper face to close the cavity after conditioning of the pressure vessel.
• the inclination of the frustoconical part (562) will be chosen as a function of the pressure prevailing in the pressure vessel and the distance having to separate the central opening (52) and the bearing edge (51), in other words of the depth of the cup cavity.
• the height of the stem (30) of a male valve will be chosen according to the depth of the cavity and the contact height (H4) desired by the customer.
• the stem must protrude from the cup by a sufficient height corresponding at least to the sum of the opening stroke of the stem and the height necessary for fixing the diffuser.
• stems of different sizes to adapt the contact height (H4) to the specific needs of the customer.
• the inclination of the frustoconical part (562) of the bottom wall and the height of the descending wall (55) can be adapted.
• the invention relates more generally to a male valve cup having an inner face and an outer face, and provided with a central opening for the passage of the protruding part of the stem, a cavity on the outer face, said cavity surrounding the central opening, the cup being configured to receive a valve body on its inner face, preferably in a flat or convex part of its inner face, and
• the valve cup is therefore configured so that the valve body is fixed on a convex or planar part of its inner face, but not in a concave part as in the state of the art.
• the entrance to the central opening (52) on the inner face of the cup is at the lowest level of the cup, and at the level furthest from the plane formed by the top of the supporting edge.
• the stem leaves the valve body and enters this central opening at the lowest level of the inner face of the cup.
• the interface between the central opening and the inner chamber of the valve body is at the lowest level of the inner face of the cup. This does not necessarily mean that the valve body is also attached to the lowest level of the cup.
• valve body on the inside face of the cup does not require the presence on the bottom wall of a frustoconical part either.
• the valve body could be fixed on the inner face of cups having a completely different geometry.

Landscapes

• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Lift Valve (AREA)
• Closures For Containers (AREA)
• Pressure Vessels And Lids Thereof (AREA)
• Table Devices Or Equipment (AREA)

Priority Applications (1)

Applications Claiming Priority (3)

Related Child Applications (1)

Publications (1)

Family

ID=71728714

Family Applications (2)

Family Applications Before (1)

Country Status (7)

Families Citing this family (4)

Citations (1)

Family Cites Families (116)

• 2020
  • 2020-07-13 EP EP23152857.1A patent/EP4190716A1/de active Pending
  • 2020-07-13 MX MX2022000993A patent/MX2022000993A/es unknown
  • 2020-07-13 BR BR112022001252A patent/BR112022001252A2/pt not_active Application Discontinuation
  • 2020-07-13 US US17/629,142 patent/US12258201B2/en active Active
  • 2020-07-13 WO PCT/EP2020/069732 patent/WO2021013605A1/fr not_active Ceased
  • 2020-07-13 CA CA3147515A patent/CA3147515A1/fr active Pending
  • 2020-07-13 CN CN202080063359.7A patent/CN114375278B/zh active Active
  • 2020-07-13 EP EP20743094.3A patent/EP4003881A1/de active Pending
  • 2020-07-13 CN CN202310952576.7A patent/CN116750347A/zh active Pending
  • 2020-07-13 CN CN202410496204.2A patent/CN118323654A/zh active Pending

Patent Citations (1)

Also Published As

Similar Documents

Legal Events