WO2021018561A1 - Krafterzeugungskörper für eine vorrichtung zum ausbringen von füllgut - Google Patents
Krafterzeugungskörper für eine vorrichtung zum ausbringen von füllgut Download PDFInfo
- Publication number
- WO2021018561A1 WO2021018561A1 PCT/EP2020/069767 EP2020069767W WO2021018561A1 WO 2021018561 A1 WO2021018561 A1 WO 2021018561A1 EP 2020069767 W EP2020069767 W EP 2020069767W WO 2021018561 A1 WO2021018561 A1 WO 2021018561A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wall
- generating body
- force
- axial end
- force generating
- Prior art date
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
- B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
- B65D83/0061—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents the contents of a flexible bag being expelled by the contracting forces inherent in the bag or a sleeve fitting snugly around the bag
Definitions
- the invention relates to an elastically stretchable force generating body which can be filled with a flowable filling material and, in the filled state, generates a discharge force acting on the filling material due to its tensile stress.
- a further object of at least embodiments of the invention is to provide a force-generating body which, when filled with a nominal filling amount, undergoes a comparatively low plastic deformation and enables the greatest possible proportion of the filled amount to be discharged. It is also an object of at least embodiments of the invention to provide a force-generating body which exhibits high tear resistance when it is filled.
- the invention provides, according to one aspect, a one-piece, internally hollow
- the Force-generating body made of elastically stretchable material before.
- the Force-generating body is intended for use as part of a device for the dosed discharge of a product that can be stored inside the force-generating body and, in certain embodiments, has dimensional stability, i.e. it has a defined rest shape in the absence of external forces and also returns to this defined after (exclusively) elastic deformation Rest form back.
- the force-generating body In an unfilled state, the force-generating body extends elongated in the direction of a longitudinal axis, the force-generating body being closed in the area of a first axial end, open in the area of an opposite second axial end and one extending around the longitudinal axis from the first to the second has axial end reaching jacket wall.
- the force generating body fulfills at least one of the following conditions:
- the jacket wall forms at least one pair of a wall piece that is straight on the inside of the wall and a wall piece that is convexly rounded on the inside of the wall in the direction of the second axial end, the wall piece that is convexly rounded on the inside of the wall
- the force generating body has in the area of its second axial end, in particular at the second axial end, a radially outwardly projecting one
- the jacket wall forms a tube section with an inner diameter decreasing in the direction from the first to the second axial end and an essentially constant outer diameter.
- the wall piece which is convexly rounded on the inside of the wall, increases the size over its entire axial length
- the hose section is offset axially in the direction of the first axial end with respect to the wall piece which is convexly rounded on the inside of the wall. In certain embodiments, the hose section extends over at least half of the total axial length of the force-generating body. In certain embodiments, when viewed in an axial longitudinal section, the jacket wall forms two or more pairs of a straight line on the inside of the wall
- the wall piece of each pair which is straight on the inside of the wall, is oriented differently with respect to the longitudinal axis.
- the jacket wall has a wall thickness everywhere which is greater than the axial thickness of the clamping lip.
- the force generating body is closed at the first axial end by a bottom wall, which has a substantially planar inner and / or outer surface at least in a bottom center piece pierced by the longitudinal axis.
- the jacket wall forms, starting from the second axial end, a funnel section with an increasingly smaller inner diameter and an increasingly smaller outer diameter in the direction of the first axial end, the jacket wall in the funnel section at least one wall piece with a conical inner peripheral surface and / or a conical outer peripheral surface having.
- the wall piece which is convexly rounded on the inside of the wall, is located in the funnel section.
- the inside wall is also straight
- Wall piece located in the funnel section and forms a wall piece with a conical inner peripheral surface. According to a further aspect, the invention provides an apparatus for
- Dispensing a filling material comprising: a, for example, bottle-like or can-like container with a container opening in the region of a container head; a force-generating body of the type explained above, inserted into the container; and one in the region of an opening edge of the container opening with the container by means of a form fit and with clamping of the force generating body
- a cover component connected by crimping with formations for attaching a valve assembly.
- the extensibility of the force-generating body can be used to generate a discharge force which acts on the filling material and which results from the tensile stress of the force-generating body and which can drive the filling material out of the force-generating body.
- the filling material can be, for example, a liquid, pasty or gel-like substance which is to be dispensed in a metered manner by means of a metering device containing the force-generating body.
- the metering device can be equipped with a valve assembly which has a suitable actuating element for actuation by a user.
- the total discharge force acting on the product results solely from the tensile stress of the
- Force-generating body i.e. additional force-generating means in the form of a propellant gas or separate spring elements are unnecessary. It goes without saying that such additional force generating means can be supportive if desired
- certain embodiments of the invention provide a one-piece force generating body made from elastically extensible
- Material for a device for dispensing a filling material which provides an interior space for the filling material and, in an unfilled state, extends elongated in the direction of a longitudinal axis, is closed in the area of a lower axial end and an opening for the passage in the area of an upper axial end of filling material.
- the force generating body fulfills at least one of the following conditions:
- the force-generating body has a tubular section which extends from the lower axial end in the direction of the upper axial end, the tubular section having a substantially constant outer diameter and an inner diameter which decreases in the direction of the upper axial end;
- the force generating body has a funnel section which extends from the upper axial end in the direction of the lower axial end, an inner side of the force generating body forming a convex curvature in the funnel section, whereby an inner diameter of the funnel section increases in the direction of the upper axial end; -
- the force generating body has at its upper axial end a radial lip which extends radially away from the longitudinal axis and for the purpose of
- Clamping the force generating body can be used. It has been shown that a decrease in the wall thickness with constant
- the force generating body can be favorable for an expansion behavior of the same. In particular, it can thus be ensured that when the force generating body is filled, it is simultaneously or at as many points as possible
- the force-generating body it is advantageous to manufacture the force-generating body by injection molding.
- a plastic material is injected into a mold, preferably from the direction of the lower axial end of the force-generating body to be produced.
- the convex rounding serves in particular to ensure that the plastic material fills the mold evenly.
- the aforementioned expansion behavior can be ensured by this convex rounding.
- the radial lip serves, for example, to ensure a sufficiently tight connection between a cover component of the device and the force-generating body.
- the radial lip can be squeezed in the area of a crimp connection between the cover component and a housing (outer container) of the device, which can be implemented reliably and cost-effectively
- the radial lip serves to ensure that the force-generating body does not inadvertently fall into the housing of the device when the device is assembled.
- the radial lip is thus also designed for use in mass production.
- the force generating body has an inner side at the lower axial end, which is essentially in a plane orthogonal to the
- the force generating body can have an outer side which is essentially orthogonal to it in a plane the longitudinal axis extends.
- the two planes are, for example, axially spaced from one another.
- the funnel section can comprise a conical section.
- the inner diameter increases linearly in the direction of the upper (second) axial end. This linear increase is to be understood as an approximately linear increase, since manufacturing tolerances in particular have to be taken into account.
- the conical section adjoins the convex rounding.
- the inside of the force generating body forms in the
- the conical section can adapt to either of the two convex curves
- the conical section is delimited in the axial direction at the top by one of the two convex roundings and at the bottom by the other of the two convex roundings.
- the radial lip adjoins the funnel section, for example.
- the tubular section can be attached to the
- the inside of the force generating body forms on one
- the transition between the funnel section and the radial lip has a convex curvature, the inner diameter of the funnel section increasing in the direction of the upper axial end as a result of this curvature.
- a device for dispensing a filling material which comprises at least the force generating body.
- the device can also have a housing or a container with a housing neck or
- the device comprises a cover component.
- the cover component can be connected to the housing neck by a crimp connection.
- the device can correspond to the dosing device described above.
- At least a part of the funnel section runs in the area of the crimp connection between the housing neck and the cover component.
- this part of the funnel section includes the convex curve.
- the convex Rounding can lie in the area of the crimp connection between the housing neck and the cover component.
- the housing has a housing axis and the
- the force-generating body is essentially parallel to the housing axis
- Force generating body have an axial distance from a bottom of the housing as well as a radial distance all around from a jacket of the housing. When the force generating body is filled, it expands until it is in a through a
- Nominal filling amount of the device given final filling state rests on a large part of its axial length on the jacket and preferably also rests on the bottom of the housing.
- FIG. 1 shows a schematic axial longitudinal section through a metering device with a force generating body
- FIG. 6 shows an axial longitudinal section through an exemplary metering device with an exemplary force generating body
- FIG. 7 shows an axial longitudinal section through the exemplary metering device with the exemplary force generating body.
- the metering device shown there denoted by 10, is designed, for example, as a dispenser for a product. It can be a fire extinguisher, albeit other forms of use such as cosmetics, food or technical substances such as lubricants are equally possible.
- the device 10 is used for storing and metered dispensing of a flowable product.
- the device 10 has a housing (container) 12 in the shape of a bottle or can, for example, with a housing axis 14, a housing jacket surrounding the axis 14
- the jacket 16 extends radially inward and forms a housing neck (container head) 18 with a housing or container opening 20.
- the force generating body denoted by 22 is elongated approximately in the manner of a condom and has a longitudinal axis 24.
- the force generating body 22 is formed in one piece, is hollow on the inside and is dimensionally stable. It is made of elastically stretchable material and is designed for the device 10 for the metered discharge of the filling material that can be stored in the interior of the force-generating body 22.
- the force generating body 22 extends elongated in the direction of the longitudinal axis 24, the force generating body 22 being closed in the area of a first (lower) axial end 46, in the area of a
- second (upper) axial end 48 is open and has a jacket wall 25 which extends around the longitudinal axis 24 and extends from the first to the second axial end. In its interior it forms an interior space 26 which serves to receive a sprayable, for example foaming, filling material.
- the filling material is, for example, an extinguishing agent, for example in the form of an extinguishing gel or an extinguishing liquid.
- the force generating body 22 is in an injection molding process with a
- the force-generating body 22 has a single-layer design, but it can optionally be coated on the inside and / or outside with a layer of a different material in a comparatively thin manner.
- the force generating body 22 has in the area of the closed end 28 a
- the force generating body 22 is at the first axial end 46 by the
- Bottom wall 28 closed, which has a substantially planar inner surface 29a and / or an essentially planar outer surface 29b at least in a bottom center piece 29 pierced by the longitudinal axis 24.
- Force generating body 22 has in the area of the closed end 28 a
- the force generating body 22 is rounded at the closed end 28.
- the force-generating body 22 is suspended in the housing 12 in such a way that, in the unfilled state, its longitudinal axis 24 runs essentially parallel to the housing axis 14, in particular approximately coincides with it. It is fastened to the housing 12 in the area of its open longitudinal end. Im shown
- the device 10 includes a cover component 32 connected to the container 12 in the region of an opening edge 21 of the container opening 20
- Formations 32a which allow a valve assembly 36 to be held securely and stably on the cover component 32.
- the cover component 32 is in its radially outer area by a crimp connection with the housing neck 18 in the area of
- a space 33 is formed between the cover component 32 and the housing neck 18 in the region of the crimp connection. In the room
- a section of a radial lip (clamping lip) 34 of the force generating body 22 can lie.
- the radial lip 34 extends in the unassembled state
- the radial lip preferably has
- Housing 12 falls. Immediately after the device 10 has been assembled, i.e. before it is filled, at least a radially outermost part of the radial lip 34 extends outside the area of the crimp connection, i.e. outside the interior of the housing 12. In other words, at least part of the radial lip 34 protrudes from the outside Area of the crimp connection. If necessary, the protruding part of the radial lip 34 can be removed after filling. A bruise to the
- Radial lip 34 between the cover component 32 and the housing neck 18 makes it possible to prevent an undesired escape of filling material from the interior 26 at the To prevent connection point between the cover component 32 and the force generating body 22.
- the cover component 32 serves as a carrier for the generally designated 36
- Valve assembly which can be clamped, glued or otherwise fastened to the cover component 32, for example. It penetrates with a valve base body 38 an unspecified, central opening of the
- Cover component 32 and has a user in the axial direction
- Actuating element 40 to be pressed down, which at the same time forms an outlet channel 42 for the filler to be sprayed.
- the geometry of the outlet channel 42 can be different.
- the force generating body 22 comprises one
- tubular section (hose section) 44 This extends from a lower (first) axial end 46 of the force generating body 22 in the direction of an upper (second) axial end 48 of the force generating body 22
- the force generating body 22 is radially symmetrical to its longitudinal axis 24
- the tubular area 44 has an essentially constant outer diameter, an inner diameter of the force generating body 22 in the tubular area 44 decreasing from the lower axial end 46 in the direction of the upper axial end 48. This means that the wall thickness in the region of the tubular section 44 increases from the lower axial end 46 to the upper axial end 48.
- the jacket wall 25 forms at least one pair of a wall piece that is straight on the inside of the wall and a wall piece that adjoins it in the direction of the second axial end 48 and is convexly rounded on the inside of the wall.
- Wall pieces that are straight on the inside of the wall are formed at 49a, 49b, 49c
- wall pieces that are convexly rounded on the inside of the wall are formed at 52, 55, 56.
- the wall pieces 52, 55, 56 which are convexly rounded on the inside of the wall, each cause an increase in the inside diameter of the jacket wall 25 compared to the wall piece 49a, 49b and 49c, which is straight on the inside of the wall, axially immediately below it.
- the force generating body 22 has a funnel section 50 which is arranged above the tubular section 44 and merges directly into it.
- the jacket wall 25 forms starting from the second axial End 48, the funnel section 50 with increasingly smaller inner diameter and increasingly smaller outer diameter in the direction of the first axial end 46, the jacket wall 25 in the funnel section 50 having at least one wall piece 54 with a conical inner peripheral surface 54a and / or a conical outer peripheral surface 54b.
- the radial lip 34 goes into the radial lip 34.
- the funnel section 50 has a substantially funnel-shaped shape to the effect that the outside thereof widens as a whole in the direction of the upper axial end 48.
- the funnel section 50 begins from the tubular section 44 in the direction of the upper axial end 48 at the point where the outer diameter of the
- Motor vehicle body 22 forms the convexly rounded wall piece 52 in funnel section 50, which wall piece 52 can also be referred to as convex rounding 52.
- the convex rounding 52 forms a rounded step sloping radially outward from the lower axial end 46 in the direction of the upper axial end 48.
- Funnel section 50 comprises the wall piece 54 with a conical inner circumferential surface 54a and / or a conical outer circumferential surface 54b, which can also be referred to as a conical section 54.
- the inner diameter of the force generating body 22 increases linearly in the direction of the upper axial end 48.
- This conical section 54 directly adjoins the convex rounding 52.
- FIGS. 2 to 5 are the force generating body 22 from FIG. 1.
- FIGS. 2 to 5 are the force generating body 22 from FIG. 1.
- Each of the entered length, radius and diameter information is given in the unit centimeter. However, each of these details can also be given in a different unit, for example in inches or in a scaled centimeter (e.g. 1.5 cm or 2.0 cm as a unit of measurement). In other words, the illustrated force generating body 22 can be scaled substantially uniformly are entered while maintaining at least some relative proportions of the dimensions.
- the radial lip 34 is designed. This extends radially away from the longitudinal axis 24. It can also be seen that the inside of the force generating body 22 in the funnel section 50 forms a further convexly rounded wall piece 55, which can be referred to as a further convex curve 55, and a further convexly rounded wall piece 56, which can be referred to as a further convex curve 56 . Each of these two further convex roundings 55, 56 is designed such that the inside diameter of the funnel section 50 increases in the direction of the upper axial end 48.
- each of the further convex roundings 55 and 56 can be referred to as a rounded step which drops off radially outward from the lower axial end 46 in the direction of the upper axial end 48.
- the conical section 54 adjoins the convex rounding 52 with one axial end and the further convex rounding 55 with the other axial end.
- the conical section 54 lies between the convex rounding 52 and the further convex rounding 55 further convex rounding 56 is located in the axial direction on the same side of the conical section 54 as the further convex rounding 56.
- the force generating body 22 has a cylindrical section 57.
- the cylindrical portion 57 has an im
- the cylindrical section 57 lies between the convex rounding 55 and the convex rounding 56. Instead of a cylindrical section 57, a further conical section can be provided.
- the convex rounding 56 merges into the radial lip 34.
- the cylindrical portion 57 and the further convex rounding 56 are designed so that the further convex rounding 56 after connecting the
- Cover component 32 with the force generating body 22 and the housing neck 18 as shown in Fig. 1 comes to rest in the space 33.
- the cylindrical section 57 is squeezed between the housing neck 18 and the cover component 32.
- the part of the force generating body 22 on which the further convex rounding 56 is arranged is also squeezed between the housing neck 18 and the cover component 32 in the space 33.
- the further convex rounding 56 and the cylindrical section 57 ensure a leak-proof connection with the cover component 32.
- the funnel section 50 has a smaller wall thickness on both axial sides of the convex rounding 56 than in the area of the convex rounding 56.
- the further convex rounding 56 thereby forms a sealing ring. This can also cause the
- the funnel section 50 has an outer surface with a plurality of sections 58, 60, 62, 64.
- the outer surface of the force generating body 22 in section 58 is conically shaped, the
- Motor vehicle body 22 has a substantially cylindrical outer surface.
- the outer diameter in this section 62 is approximately constant.
- the outer surface of the force generating body 22 is conically shaped in the section 64, with the outer diameter of the force generating body 22 increasing linearly in this section 62 in the direction of the upper axial end 48.
- FIGS. 6 and 7 show an embodiment of the device 10 which was described above.
- the device 10 shown in FIGS. 6 and 7 also comprises an embodiment of the force generating body 22, which was described above.
- the force generating body 22 can differ from FIGS. 1 to 5.
- Cover component 32 protruding part of radial lip 34 has already been removed in the embodiment shown.
- this part can be removed during the crimping process in which the cover component 32 is connected to the force-generating body 22 and the housing neck 18, in particular by
- the convex rounding 52 lies in the interior of the housing 18.
- the conical section 54 likewise lies in the interior of the housing 18, axially below the cover component 32.
- FIG. 7 the same embodiment from FIG. 6 is shown.
- a section of FIG. 2 is inserted.
- the position of an edge at the transition between the section 64 and the radial lip 34 is indicated by an arrow.
- both a part of the radial lip 34 and the further convex curve 56 are located in the space 33.
- the position of an axially upper end of the further convex rounding 55 is indicated by an arrow. In the embodiment shown, this is on an underside of the
- Cover component 32 on. This underside of the cover component 32 points away from the upper axial end 48.
- the force generating body 22 When the force generating body 22 is filled with filling material, the force generating body 22 begins to expand. The extension of the
- Force-generating body 22 takes place both in the radial direction and in the axial direction, and to a large extent simultaneously. If the filling level is sufficient, but in any case well before a nominal filling volume is reached, e.g. with a
- the force generating body 22 finally rests on the housing jacket 16 all around.
- the contact area in which the force generating body 22 rests against the housing jacket 16 expands further in both axial directions, i.e. axially downwards and axially upwards (although more axially downwards).
- the force generating body 22 has expanded axially to at least close to the bottom of the housing 12. In this state lies the
- Force generating body 22 on a large part of the axial length of the housing shell 16 on this.
- the force generating body 22 is pushed against the housing base - if at all - preferably only shortly before reaching the
- Final filling state for example only after filling at least 85%, better at least 90% and even better at least 95% of the total filling amount determined as a function of the nominal filling amount of the device 10.
- the tensile stress stored in the force generating body 22 causes a force acting on the filled product through which, when the Valve assembly 36 the filling material is driven out of the device 10. Further force-generating means are not present in the device 10 shown. The application force is completely applied by the force generating body 22.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2201030.0A GB2600339B (en) | 2019-07-29 | 2020-07-13 | Force-generating body for a device for dispensing contents |
US17/630,644 US20220258950A1 (en) | 2019-07-29 | 2020-07-13 | Force-generating Body for a Device for Dispensing Contents |
JP2022506354A JP2022542612A (ja) | 2019-07-29 | 2020-07-13 | 充填物を分配するための装置用の力発生体 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019005343.5A DE102019005343B3 (de) | 2019-07-29 | 2019-07-29 | Krafterzeugungskörper für eine Vorrichtung zum Ausbringen von Füllgut |
DE102019005343.5 | 2019-07-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021018561A1 true WO2021018561A1 (de) | 2021-02-04 |
Family
ID=71670221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2020/069767 WO2021018561A1 (de) | 2019-07-29 | 2020-07-13 | Krafterzeugungskörper für eine vorrichtung zum ausbringen von füllgut |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220258950A1 (de) |
JP (1) | JP2022542612A (de) |
DE (1) | DE102019005343B3 (de) |
GB (1) | GB2600339B (de) |
WO (1) | WO2021018561A1 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH591901A5 (en) * | 1975-02-25 | 1977-10-14 | Alza Corp | Fluid dispenser - having expansible elastomeric bladder |
US4446991A (en) | 1978-04-24 | 1984-05-08 | Thompson Kenneth W | Self-contained fluid dispenser |
WO1988000563A2 (fr) * | 1986-07-16 | 1988-01-28 | Richard Friedrich | Recipient comprenant au moins une chambre de forme tubulaire, procede et dispositif pour sa fabrication |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4324350A (en) * | 1978-04-24 | 1982-04-13 | Thompson Kenneth W | Elastomeric apparatus for pressure dispensing of fluid |
US4222499A (en) * | 1979-05-07 | 1980-09-16 | Kain's Research & Development Company, Inc. | Pressurized fluid dispensing apparatus having expansible bladder held in place with compressive forces |
DE9014666U1 (de) * | 1990-10-23 | 1991-03-21 | Friedrich, Richard, 7707 Engen | Ventil für ein Behältnis und Behältnis allenfalls mit einem derartigen Ventil |
DE10144951A1 (de) * | 2001-09-12 | 2003-04-17 | Hartmut Schiefer | Sprühdose |
US20040065678A1 (en) * | 2002-05-21 | 2004-04-08 | Dieter Gobbers | Spraying apparatus for introducing substances into the body or applying substances onto the body |
US20090045222A1 (en) * | 2007-08-14 | 2009-02-19 | Power Container Corp. | Bag of variable volume, device suitable for dispensing fluids comprising said bag, and process for filling said device |
DE102010018888B4 (de) * | 2010-04-30 | 2013-06-27 | NOAFLEX GmbH | Füllgut-Ausbringvorrichtung mit einem gummielastischen Krafterzeugungskörper mit belastungsoptimierter Wandgeometrie |
US20180339843A1 (en) * | 2017-05-26 | 2018-11-29 | The Procter & Gamble Company | Aerosol dispenser having annular seals and aerosol container therefor |
-
2019
- 2019-07-29 DE DE102019005343.5A patent/DE102019005343B3/de active Active
-
2020
- 2020-07-13 JP JP2022506354A patent/JP2022542612A/ja active Pending
- 2020-07-13 WO PCT/EP2020/069767 patent/WO2021018561A1/de active Application Filing
- 2020-07-13 GB GB2201030.0A patent/GB2600339B/en active Active
- 2020-07-13 US US17/630,644 patent/US20220258950A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH591901A5 (en) * | 1975-02-25 | 1977-10-14 | Alza Corp | Fluid dispenser - having expansible elastomeric bladder |
US4446991A (en) | 1978-04-24 | 1984-05-08 | Thompson Kenneth W | Self-contained fluid dispenser |
WO1988000563A2 (fr) * | 1986-07-16 | 1988-01-28 | Richard Friedrich | Recipient comprenant au moins une chambre de forme tubulaire, procede et dispositif pour sa fabrication |
Also Published As
Publication number | Publication date |
---|---|
GB2600339A (en) | 2022-04-27 |
GB2600339B (en) | 2023-08-23 |
JP2022542612A (ja) | 2022-10-05 |
US20220258950A1 (en) | 2022-08-18 |
DE102019005343B3 (de) | 2020-12-17 |
GB202201030D0 (en) | 2022-03-16 |
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