Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
  • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
  • G01F11/04—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the free-piston type
• • 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
  • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
  • B65D83/0038—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container moved by a spring-like mechanism
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
  • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
  • G01F11/04—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the free-piston type
  • G01F11/06—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the free-piston type with provision for varying the stroke of the piston
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
  • G01F11/10—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation
  • G01F11/12—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements
  • G01F11/20—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber rotates or oscillates
  • G01F11/22—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber rotates or oscillates for liquid or semiliquid
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
  • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
  • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
  • G01F11/021—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type
  • G01F11/024—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type the pistons reciprocating in rotatable cylinders

Definitions

• the present invention relates to a device for packaging and dispensing a product.
• the device is particularly suitable for the distribution of cosmetic, pharmaceutical or dermato-pharmaceutical products.
• Such products may for example be distributed in the form of a milk, a cream, a gel, a paste, etc.
• the products of the type mentioned above are commonly stored in a container made in particular of thermoplastic material or glass.
• the storage container is equipped with a dispensing head movable relative to the container so as to allow the delivery of a dose of product.
• variable volume compartment is generally delimited by a follower piston sealingly mounted within the storage container. Actuation of the metering pump causes aspiration of the product contained in the container compartment and the product outlet. As the product is dispensed, the follower piston rises inside the container under the effect of the depression resulting from the decrease in the volume of product.
• Such devices are advantageous in that the product to be dispensed is packaged and stored isolated from air. However, such devices do not make it possible to ensure perfect reproducibility of the doses of product dispensed taking into account the internal design of the metering pumps.
• the present invention aims to remedy this disadvantage.
• the present invention aims to provide a device for packaging and dispensing a product for precisely dispensing the same amount of product for each use.
• the present invention also aims to provide a device with a simple design, economical and easy to use.
• the object of the invention is a device for packaging and dispensing a product, in particular a pharmaceutical or cosmetic product, comprising a storage container provided with at least one variable volume compartment containing said product, a means for pressurizing device capable of permanently pressurizing the product contained in said compartment, and a dispensing head comprising a mounting base fixed to the container.
• the dispensing head further comprises a dispensing member mounted inside the mounting base while being rotatable, and a piston movable in translation inside the dispensing member and able to delimit at a distance inside said first and second dosing chambers opposite.
• the dispensing head also comprises at least a first orifice formed on the dispensing member and adapted to be in direct fluid communication with the first metering chamber.
• the dispensing head further comprises at least a second orifice formed on the dispensing member and adapted to be in direct fluid communication with the second metering chamber.
• orifice capable of being in direct fluid communication with the metering chamber it is meant that said orifice is not associated with a pump or valve type selective dispensing means making it possible to force the passage of the product through said orifice.
• the dispensing member is movable at least between a first position in which said first orifice is in communication fluidic with the variable volume compartment of the container and wherein said second port is in fluid communication with at least one outlet of the dispensing head, and a second position in which said second port is in fluid communication with said dispensing compartment. and wherein said first port is in fluid communication with said outlet port.
• this metering chamber The filling of this metering chamber with product causes the displacement of the piston and consequently a decrease in the volume of the other metering chamber.
• the product contained in this other metering chamber is thus distributed through the outlet orifice (s) of the dispensing head.
• the piston under the effect of the pressure exerted by the product initially contained in the variable volume compartment of the container, the piston is able to move from a first position in which the volume of the chamber of The dosage in communication with this compartment is minimal and the volume of the other metering chamber is at a maximum, at a second position in which the volume of said metering chamber is at a maximum and the volume of said other metering chamber is minimal.
• This displacement of the piston causes the product distribution.
• the volume of one of the metering chambers increases, the volume of the other metering chamber decreases. The maximum volumes of the rooms are equal.
• the dispensing head thus makes it possible to achieve precise product dosing and reproducible with each use.
• the piston comprises means for adjusting before use the maximum volume of each of the first and second dosing chambers.
• the piston comprises means for adjusting before use the maximum volume of each of the first and second dosing chambers.
• the piston may for example comprise a rod on which is fixed adjustably at each end a piston head.
• the piston heads can thus be moved closer to or further apart than the other according to the desired voids of the first and second metering chambers.
• each end of the rod may comprise threads engaged with a thread of the associated piston head.
• the piston may for example be in the form of a cylindrical disc. In this case, the maximum volume of each dosing chamber remains fixed.
• the dispensing member may be rotatable about a geometric axis transverse to a longitudinal axis of the storage container. Said outlet orifice is advantageously provided on the mounting base.
• said outlet orifice has a cross section of oblong shape and whose smaller dimension is smaller than the largest dimension of the section of the piston.
• the dispensing member comprises an actuating means accessible from outside the mounting base.
• the dispensing member may comprise means for locating the position of the first and second orifices and / or being shaped to identify these positions.
• the mounting base is in the form of two hinged hulls which cover and hold the dispensing member in position.
• the pressurizing means is disposed within an additional variable volume compartment of the storage container. No means located outside the storage container is used to perform this function.
• the storage container advantageously comprises a partition wall sealingly delimiting the variable volume compartment containing said product and the additional variable volume compartment.
• the partition wall is in the form of a movable piston within the storage container.
• the pressurizing means may comprise a resiliently deformable mechanical member and exerting a permanent thrust force on the piston in the direction of the dispensing head.
• the mechanical member may for example be in the form of a coil spring, or may further comprise one or more stacked spring springs, for example Belleville type.
• said additional variable volume compartment is at atmospheric pressure.
• the pressurizing means may comprise a gas under pressure.
• the partition wall is in the form of a bag with deformable or flexible walls.
• the pressurizing means may comprise a pressurized gas introduced into the space which is located between this pocket and the container walls, and which forms the additional variable volume compartment.
• the device according to the invention can be used for packaging and dispensing a cosmetic, pharmaceutical or dermatological product, in particular in the form of a cream, a gel, a milk or a paste.
• a cosmetic, pharmaceutical or dermatological product in particular in the form of a cream, a gel, a milk or a paste.
• FIG. 1 is a sectional view of a packaging and dispensing device according to an exemplary embodiment of the invention
• FIGS. 2 to 4 are front, side and top views, on a reduced scale, of the device of FIG. 1,
• FIG. 5 is a sectional view illustrating the mounting of a piston inside a dispensing member of the device of FIG. 1,
• Figures 12 to 13 are sectional views of the device of Figure 1 illustrating the possible adjustment of the product dosage.
• Figure 1 a device for packaging and dispensing a product, designated by the general reference numeral 1 0, which comprises a container 12 for storing said product P and a dispensing head 14 of said product mounted on the container.
• the device 10 is shown in a supposedly vertical position with the dispensing head 14 disposed above the container 12.
• the dispensing head 14 is designed to provide a precise and reproducible dosage of the amount of product P delivered with each use.
• the container 12 extends along an axis X-X 'longitudinal, here vertical.
• the container 12 comprises a lower end forming a bottom 12a, an open opposite end forming an access opening 12b, and a peripheral wall 12c extending axially between these ends.
• the peripheral wall 12c of the container may for example have a circular cross section or an oval section.
• the container 12 also comprises an upper closure wall 16 and insert closure 12b open access opening said container.
• the wall 16 may be secured to the container by any suitable means, for example by coiling, snapping, etc.
• the wall 16 is provided with a through orifice 18.
• the orifice 1 8 is here centered on the axis XX '.
• the container 12 comprises a pusher piston which is mounted therein in a sealed manner by being freely movable in the axial direction.
• the piston 20 is in frictional contact with the peripheral wall 12c of the container.
• the piston 20 delimits inside the container 12 a variable volume compartment 22 which contains the product P.
• the compartment 22 is delimited axially by the piston 20 and the wall 16 of the container. Port 18 forms an outlet for product P.
• the piston 20 delimits inside the container 12 an additional compartment 24, also of variable volume.
• the compartment 24 is at atmospheric pressure through the orifice 26 formed in the thickness of the bottom 12a of the container which forms an air inlet opening.
• the compartment 26 is axially delimited by the bottom 12a of the container and by the piston 20.
• the compartments 22, 24 are arranged axially on either side of the piston 20.
• the container 12 and the piston 20 may each be made in one piece, for example by molding a thermoplastic material, for example polypropylene (PP) or polyethylene (PE).
• a thermoplastic material for example polypropylene (PP) or polyethylene (PE).
• the device 10 also comprises a spring 30 which is mounted inside the compartment 24 and which exerts a permanent thrust force on the piston 20 which tends to push it axially in the direction of the dispensing head 14.
• the spring 30 thus makes it possible to pressurize permanently the product P contained inside the compartment 22 of the container.
• the spring 30 is disposed axially between the piston 20 and the bottom 12a of the container.
• the spring 30 is compressed axially between the piston 20 and the bottom 12a.
• the spring 30 is centered on the axis XX '.
• the spring 30 is here in the form of a helical compression spring.
• the lower end turn of the spring 30 comes into bearing against the bottom 12a of the container while the upper end turn bears against the piston 20.
• the spring 30 is in the form of a helical spring.
• the dispensing head 14 comprises a mounting base 32 on the container 12 and a dispensing member 34 mounted inside thereof being rotatable about an axis YY '( Figure 3) transverse to the XX 'axis of the container.
• the dispensing head 14 also comprises a piston 36 movable in translation inside the dispenser member 34.
• the base 32 has a dual function, namely to ensure the mounting of the dispensing head 14 on the container 12 and maintain the axial position of the dispensing member 34 relative to said container.
• the base 32 comprises two half-shells 38, 40 hinged, at an upper end, by a hinge (not shown) to allow the mounting of the dispenser member 34.
• the hinge can example be of the type hinge film.
• the half-shells 38, 40 and the hinge are advantageously made in one piece, by molding a synthetic material.
• the lower ends of the half-shells 38, 40 are attached to the upper end of the container 12 by any suitable means, for example by snapping, gluing, snug fit, etc.
• the half-shells 38, 40 have flat opposite faces.
• the half-shells 38, 40 may have a spherical shape.
• the base 32 comprises a through orifice 42 formed in its thickness.
• the orifice 42 forms the outlet orifice of the dispensing head 14.
• the orifice 42 is formed on the half-shells 38, 40.
• the orifice 42 is coaxial with the axis X-X '.
• the orifice 42 has an oblong shape. Alternatively, it is possible to provide an orifice 42 having another shape, for example circular or polygonal.
• the dispensing member 34 is held axially between the base 32 and between the container 12, more precisely between the wall 16 thereof.
• the base 32 covers the dispensing member 34.
• the dispensing member 34 is in the form of a mobile wheel rotatable about the axis YY '.
• the dispensing member 34 is made here in two half-rollers 44, 46 identical to each other.
• Each half-wheel 44, 46 comprises a body 48, 50 bearing against the base 32, and a tube 52, 54 extending inwards from the body.
• Each half-wheel 44, 46 also comprises a through orifice 56, 58 formed in the thickness of the body 48, 50 and opening inside the tube 52, 54.
• the tubes 52, 54 are coaxial and the orifices 56, 58 are diametrically opposed.
• the piston 36 of the dispensing head is mounted inside the tubes 52, 54 of the dispensing member 34.
• the piston 36 is freely mounted inside the dispensing member 34 in a sealed manner.
• the piston 36 is able to define inside the dispensing member 34 a first metering chamber 60 ( Figure 7) and a second metering chamber 62 opposite its position. inside said dispensing member.
• the piston 36 comprises a rod 64 and a piston head 66, 68 attached to each end of said rod.
• Each head 66, 68 is adjustably attached to the rod 64, for example by providing at each end thereof a thread engaging with a thread in a bore of the associated head 66, 68.
• the piston heads 66, 68 are here identical to each other.
• the cross section of each piston head 66, 68 corresponds precisely to the internal section of the tubes 52, 54 of the dispensing member 34.
• the section of each piston head 66, 68 may be oval, square, etc.
• the section of each head 66, 68 is greater than the smallest dimension of the outlet port 42.
• the rod 64 and the heads 66, 68 may be made by molding a thermoplastic material.
• Figure 5 is illustrated the mounting of the piston 36 within the two half-rollers 44, 46 of the dispenser member.
• the first metering chamber 60 is delimited by the head 66 of the piston and by the tube 52 of the dispenser member.
• the orifice 56 opens into the metering chamber 60.
• the orifice 56 is in direct fluid communication with this chamber.
• the second metering chamber 62 is delimited by the head 68 of the piston and the tube 54 of the dispenser member.
• the orifice 58 opens into the metering chamber 62.
• the orifice 58 is in direct fluid communication with this metering chamber 62.
• the latter comprises a handle 70 (FIG. 2) which extends laterally outward through an orifice 72 formed in the The thickness of the base 32.
• the handle 70 is in the form of an elongate disk portion.
• the height of the handle 70 is such that its highest point is substantially flush with one of the flat faces of the base 32.
• other configurations of the handle 70 are possible.
• the handle 70 ( Figure 2) of the dispenser member 34 is oriented so that in a vertical position the orifices 56, 58 respectively face the orifices 18, 42.
• marks or marks can also be provided on the handle 70 so as to locate the position of the orifices 56, 58.
• part of the product P present in the compartment 22 of the container is forced through the orifice 18 of the container and the orifice 56 of the dispenser member. This causes a push of the product on the piston head 66 and the sliding of the piston 36 until the opposite head 68 abuts against the body 50 of the dispenser member as shown in FIG. 7.
• the user can rotate the dispenser member 34 as shown in Figure 8 so as to finally bring the orifice 56 of said member opposite the outlet port 42 of the dispensing head as shown in Figure 9.
• the orifice 58 of the dispensing member is in turn facing the orifice 18 of the container.
• the orifice 58 is in direct fluid communication with the compartment 22 of the container via the orifice 18.
• the piston 20 can then move axially towards the head 14 and a portion of the product P present in the compartment 22 of the container is forced through the orifice 18 of the container and the orifice 58 of the dispenser member. This causes the piston 36 to move inside the dispensing member 34 in the direction of the outlet orifice 42 of the dispensing head as shown in FIG.
• the metering chamber 62 is created again and fills P product from the compartment 22 of the container. Simultaneously, the volume of the opposite metering chamber 60 decreases and the product already present in this chamber is distributed through the outlet orifice 42. The volume increase of the metering chamber 62 and its filling, as well as the distribution simultaneous product through the outlet port 42 continue until the head 66 of the piston abuts against the body 48 of the dispenser member as shown in Figure 11. The distribution of the product is continues during the emptying of the metering chamber 60.
• the placing in communication of the compartment 22 of variable volume of the container with one of the orifices 56, 58 of the dispensing member causes the displacement of the piston 36, which makes it possible simultaneously to obtain a entrance to product P of the compartment 22 in the metering chamber 60, 62 in communication with this orifice, and a distribution of the product already in the other metering chamber through the outlet orifice 42 of the dispensing head.
• each piston head 66, 68 is adjustably attached to the rod 64, which allows them to be brought closer to one another or away from one another in accordance with the desired values of the first and second dosing chambers 60, 62 when dispensing the product.
• the piston heads 66, 68 can be unscrewed, while remaining in engagement with the rod 64, so as to reduce the volume of the metering chamber 62 as illustrated. in figure 13.
• the adjustment of the dosing volume of the chambers 60, 62 can be made during assembly of the device according to the product to be stored and dispensed. It is also possible to allow the user to perform this adjustment of the volume of the chambers 60, 62 for example by means of a key provided with the device and intended to be inserted inside the chamber. a housing of complementary shape formed on each end face of the heads 66, 68 of the piston to ensure the screwing or unscrewing of these heads. This key is dimensioned so that it can be introduced through the orifices 42 and 56 or 58 so as to make this adjustment of the volume of metering of the chambers 60, 62 from the outside of the device 10.

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• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=59974555

Family Applications (1)

Country Status (4)

Families Citing this family (1)

Family Cites Families (31)

• 2017
  • 2017-06-23 FR FR1755759A patent/FR3068019B1/fr not_active Expired - Fee Related
• 2018
  • 2018-05-23 WO PCT/EP2018/063536 patent/WO2018233967A1/fr active Application Filing
  • 2018-05-23 EP EP18724602.0A patent/EP3642571A1/de not_active Withdrawn
  • 2018-05-23 US US16/622,973 patent/US11162831B2/en active Active

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