EP1578676B1 - Pressurised dispenser for mixing and producing two-component materials - Google Patents

Pressurised dispenser for mixing and producing two-component materials Download PDF

Info

Publication number
EP1578676B1
EP1578676B1 EP03813585A EP03813585A EP1578676B1 EP 1578676 B1 EP1578676 B1 EP 1578676B1 EP 03813585 A EP03813585 A EP 03813585A EP 03813585 A EP03813585 A EP 03813585A EP 1578676 B1 EP1578676 B1 EP 1578676B1
Authority
EP
European Patent Office
Prior art keywords
pressurized
inner casing
membrane
trigger
cup
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03813585A
Other languages
German (de)
French (fr)
Other versions
EP1578676A2 (en
EP1578676B2 (en
Inventor
Peter Kwasny
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.)
Peter Kwasny GmbH
Original Assignee
Peter Kwasny GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32404089&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1578676(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Peter Kwasny GmbH filed Critical Peter Kwasny GmbH
Publication of EP1578676A2 publication Critical patent/EP1578676A2/en
Application granted granted Critical
Publication of EP1578676B1 publication Critical patent/EP1578676B1/en
Publication of EP1578676B2 publication Critical patent/EP1578676B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/68Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them
    • B65D83/682Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head
    • B65D83/687Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head the products being totally mixed on, or prior to, first use, e.g. by breaking an ampoule containing one of the products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/42Filling or charging means

Definitions

  • the invention relates to a pressure cell with a frame, a dome for receiving a valve, a vaulted bottom, an inner sleeve disposed on a plate, a disposed in the inner sleeve plunger for rupturing the inner sleeve, which is actuated through the plate, wherein the inner sleeve a spring cage is connected to the plate, the spring cage contains a trigger resiliently mounted, which acts on the plunger, which plunger acts against a arranged at the can end of the inner sleeve termination, and the use of such pressure cans for 2-component systems.
  • Such pressure cans are particularly suitable for the storage and application of 2K sealing and insulating foams, 2K adhesives and 2K paints.
  • the invention also relates in particular to the formation of pressure cans, which in addition to the liquid substances of the main component in the inner sleeve receive a second component which reacts with the main component to the finished product, such as a multicomponent varnish.
  • a second component which reacts with the main component to the finished product, such as a multicomponent varnish.
  • the invention can also be used for 2K formulations for other purposes, such as in surface technology or in the generation of plastic foams.
  • the substances of the main component contained in the pressure vessel are liquid and consist for example of a curable lacquer binder, solvents and the liquid propellant used to dispense the component.
  • the further component is present in a relatively small amount in an inner sleeve and usually consists of one with the main component fast-reacting compound, such as in the 2K system polyisocyanate / polyol.
  • catalysts may be present.
  • the component in the inner sleeve serves to influence the curing and the quality of the product, usually by accelerating the curing, increasing the strength or weather resistance, or the like.
  • the second component is usually introduced shortly before the application of the foam by blowing the lid of the inner container in the pressure cell and mixed by shaking therein.
  • a pressure cell is known with a formed by forming a metal molded part one-piece bottom.
  • a recess of this bottom of the externally threaded neck of an additional container is inserted and braced by means of a nut screwed from the outside under deformation of an O-ring seal between a shoulder of the additional container and the inner edge of the bottom recess.
  • the executed in turn by a piston-shaped seal in the interior of the additional container and sealed rod is designed as a shaft which rotates in the forme knownerhals and internally supported on this. If the shaft is driven from the outside, this leads to the positive engagement of its inner end with the lid of the additional container, which is thereby blasted off against the internal pressure in the can.
  • the starting point of the invention is WO 85/00157 A, in which a pressure cell for discharging single- or multi-component substances is described, which has in its interior a further component receiving additional container.
  • the inner container has an inner lid, which can be blasted off via a guided on the bottom of the pressure cell to the interior of the inner container rod.
  • the plunger is movably mounted within the additional container and inserted through a arranged in the sickle plate of the can bottom seal.
  • a pressure cell according to WO 85/00157 A is shown in FIG.
  • Both prior art pressure cans have an inner sleeve, which is usually made of polyolefins.
  • Preferred material is polypropylene.
  • These plastics have proven themselves, but they do the disadvantage that they are permeable to some propellant gas components and solvents, such as esters, ketones and aromatics, do not sufficiently withstand.
  • 2-component paints usually contain such solvents, which has hitherto made their use of 2-component pressure doses very difficult.
  • these cans because of the large number of items required for the production and their construction relatively expensive and expensive to manufacture. Due to the material, in particular in the interaction of plastic metal parts, there are always tightness problems that are difficult to control and lead again and again to faulty batches.
  • a pressure cell is known, which is already improved in terms of the construction of the inner sleeve and the sealing problem in the plate area by a molded membrane or an integration of the plate in the inner sleeve dissolves, so that in this position no more seals are needed ,
  • the inner sleeve still has a conventional lid, which requires an O-ring for sealing.
  • 2-component paint systems which contain aromatics as solvents and polyisocyanates as the second component, but with long storage times and / or high temperatures, a considerable immigration of both components in the sealing system, which can lead to problems when blowing off the lid.
  • the invention is therefore the object of developing the known pressure doses so that the inner sleeve forms an absolutely tight against the contents of the pressure cell unit.
  • a pressure cell of the type mentioned in which the conclusion is a membrane which hermetically seals the inner sleeve at its can end against the contents of the pressure box, and which is torn open by the plunger upon actuation of the trigger, wherein the pressure within the inner sleeve (7) is lower than the pressure outside the inner sleeve (7) and the membrane (8) bulges into the inner sleeve (7).
  • the inner sleeve is now equipped on the can side with a membrane, so that in this critical area a complete separation - without the use of conventional separate sealing elements, such as O-rings - is given against the remaining can contents, while the membrane may be glued to the inner sleeve or formed as an integral part of the inner sleeve be, ie inner sleeve and membrane are made in one piece.
  • the membrane itself preferably has a peripheral edge which, when the membrane is applied, surrounds the inner sleeve by a distance, for example a few millimeters, and is adhesively bonded in a sealed manner.
  • the edge may also be provided with an internal thread and be screwed to an external thread of the inner sleeve on the can-side end; Also in this case, the sealing effect is brought about by the use of an adhesive.
  • Suitable adhesives are, in particular, conventional 2K adhesive systems, for example amine-curing epoxy adhesives or amine- or OH-curing polyisocyanate adhesives.
  • the choice of adhesive depends on its resistance to the particular contents of the can; the most suitable adhesive system can be determined by simple tests.
  • the inner sleeve used in the pressure cans according to the invention can be made of conventional materials, but preferably consists of aluminum. Plastic variants, for example made of polypropylene, are also possible. Where the inner sleeve is an integral part of the bottom plate, however, only a corresponding pressure-resistant material can be used in pressurized pressurized with higher pressure, preferably aluminum. The use of tinplate is also possible. The techniques with which corresponding plastic and metal parts are manufactured are known to the skilled person in and of themselves.
  • the inner sleeve is connected via a spring cage with the bottom or valve plate of the pressure cell.
  • the bottom plate is preferably a plate, as it is used at the valve end of the pressure cell to integrate the valve unit in the can end.
  • Such plates can be made extremely simple and inexpensive. Thus, there is the advantage that the separate production of a part is not required for the bottom plate.
  • the arrangement of the inner sleeve on the valve plate in the dome of the can is particularly advantageous. In this case, the bottom plate can be omitted.
  • the inner sleeve with membrane is connected to the plate via a spring cage.
  • the inner sleeve has a receptacle at its plate-side end, which serves for positive and / or non-positive fixing to the spring basket.
  • the receptacle and spring basket are clinched or crimped together, wherein the spring basket to improve the seat may have a circumferential projection or a circumferential groove around which or in which the recording around or is deformed. Sealing elements are not required because penetration of the can contents into the inner sleeve is reliably prevented by the membrane.
  • a trigger is resiliently mounted, which acts on the second membrane, therethrough and on the plunger in the inner sleeve.
  • the plate end of the trigger - referred to as trigger pin - protrudes through the plate out of the pressure box.
  • Pin and trigger can form a unit, but are separated when the inner sleeve on the valve disc; the trigger in this case has a receptacle in which engages the pin for triggering the inner sleeve, and in the after release of the can and removal of the pin a valve is used.
  • the spring travel is dimensioned so that the trigger drives the plunger reliably against the (first) membrane of the inner sleeve and this ruptures.
  • a spring travel of about 5 to 10 mm is fully sufficient; by the same spring travel of the trigger pin of the plunger protrudes from the plate bottom.
  • the can is pushed with the pin against a flat and solid surface, or the pin pressed by hand.
  • the spring sleeve with at least one opening in order to facilitate the pressure equalization between the box space and the interior of the spring sleeve.
  • these openings also have the purpose of allowing rapid filling of the pressure cell with propellant gas through the spring cage.
  • the filling takes place with pressures of up to 60 bar; in order to avoid an untimely release of the inner sleeve by destroying the membrane during filling, one must be ensured rapid pressure relief.
  • the total cross section is expediently in the ratio of 3: 1 to 6: 1 to the free cross section of the filling device.
  • the membranes of the inner sleeve thus close the contents of the inner sleeve during the storage time of the can reliably against the remaining contents of the can.
  • the second membrane is pierced.
  • the plunger ruptures the first membrane of the inner sleeve so that the tube contents become free and can mix with the contents of the can.
  • the pressure cell contains a mixing aid, for example in the form of a freely movable steel ball.
  • the inner sleeve is additionally anchored to the bottom plate.
  • the spring cage is inside the inner sleeve, on the inside of the bottom plate.
  • the trigger is actuated by means of a pin through the plate of the soil and acts, without having to pierce a membrane, directly on the plunger, which, as described above, the membrane ruptures. Due to the formation of a unit of membrane and inner sleeve, the hermetic closure of the inner sleeve against the pressure-dose contents is also ensured here. On the bottom side, the hermetic closure results from the fact that inner sleeve and vaulted bottom as well as the bottom plate are crimped together with the inclusion of sealing elements.
  • inner sleeve and (first) membrane can also be glued together, as previously described.
  • the spring basket is fixed in a central shape of the plate. This formation encloses the end of the spring basket, which widens outward on the bottom side, and prevents the spring cage from moving into the can with the movement of the pin / trigger.
  • the plunger has, in an expedient embodiment, several wings along a central axis, in particular four wings. This leads to a stabilization of the position of the plunger in the inner sleeve, without an excessive volume requirement arises. To further reduce the volume of the plunger, recesses or openings may be provided. Since ram and trigger form separate units at least in the first variant, a separate leadership and stabilization of the plunger is essential.
  • the ram for example, the shape of a bevelled and sharp-edged hollow cylinder at its diaphragm-side end, optionally with a point.
  • the plunger there is a contact point between the plunger and the diaphragm at the periphery of the plunger, which is suitable for first perforating the membrane there and then punching out or cutting an approximately circular opening upon further advancement of the plunger.
  • the inner container Since the inner container is hermetically sealed against the other contents of the can and is filled separately, there is automatically a pressure difference between the contents of the can and the contents of the inner sleeve. As a result, the membrane is under pressure and bulges into the inner cylinder, which causes the membrane in the region of the membrane-nearest point of the plunger rests against the plunger. This application promotes the large-scale tearing of the membrane.
  • the plunger is suitably beveled at its end on the membrane, so that a membrane-closest point is formed, and has four wings for stabilization within the inner sleeve.
  • this four-winged variant is usually completely tearing.
  • the membrane is thereby cut open in a cross shape and ruptures completely under the pressure of the contents of the can, so that there is a rapid mixing.
  • the spring cage in the region of the central formation.
  • the one in the central shape festkrkrimpte spring cage acts against the seal, so that leakage of the can contents is excluded by the plate.
  • the seal for example, a rubber seal, has the form of a pierced circular disk, through the center of which the pin of the trigger protrudes from the pressure box.
  • the trigger has at its plate-side end a projection which, expediently with a projecting edge, acts against the hole-disc-shaped seal in the plate and causes a partitioning also in the region of the pin to the outside.
  • the shutter plate has, on the plate side, directly after the sealing projection, another projection which serves as an abutment for the guided in the spring cage coil spring. As a further abutment is arranged on the valve-side end of the spring cage inner projection.
  • the spring ensures a secure fit of the trigger with its sealing ring on the rubber seal and at the same time allows the indentation of the bolt by the desired length to trigger the inner sleeve.
  • the pressure cell according to the invention is otherwise manufactured and equipped in a conventional manner. This is especially true for the valve area, and the valve-side equipment, which allows to use the pressure cell both in manual mode and as a cartridge on spray guns.
  • Figures 1 to 7 are sectional figures.
  • the pressure cell 1 consists of a frame 2, which is closed at the upper end with a dome 3.
  • the dome 3 has a flanged edge, which connects the dome and frame together and at the same time brings about a tight connection of the parts.
  • the dome 3 is made of a round plate, a molded part cut out of sheet metal, which has been obtained by forming the curved shape shown in the drawing.
  • the inner edge of the mandrel 3 is in turn flanged and receives a valve plate with a valve 4.
  • the bottom 5 is also connected via a flanged edge to the frame 2 and has in its center on a base plate 6, above which the inner sleeve 7 is located.
  • the inner sleeve 7 has a removable cover 8.
  • Inside the inner sleeve 7 is a plunger 9, whose end is led out through a sealing element 10 below from the pressure cell.
  • the plunger 9 on limiting elements, both of which act against the sealing element 10 and limit the free path length of the plunger 9 within the inner container 7.
  • the plunger 9 is pressed by striking the can bottom on a solid surface and placed in an upward movement.
  • the rubber-elastic sealing element 10 catches this upward movement and leads after breaking off the lid 8, the plunger 9 back to its original position.
  • the can according to FIG. 1 can be equipped with the inner sleeves according to FIG. 2, 3 or 6.
  • Figure 2 shows an inventively manufactured and used for use inner sleeve 7 with plunger 9 and cover 8.
  • the inner sleeve 7 has a cylindrical wall and is closed on the plate side by a membrane.
  • the plate side is followed by a cylindrical receptacle 18, which serves for fixing on the spring basket 11.
  • the inner sleeve may be made of a suitable plastic, but is suitably made of aluminum.
  • suitable wall thicknesses for the wall about 0.3 to 0.8 mm, for the two membranes about 0.05 to 0.10 mm.
  • the inner sleeve 7 is closed with a first membrane 8, which may be made of aluminum or plastic.
  • the membrane 8 has circumferentially on an edge 25 which engages over the outer edge of the inner sleeve 7.
  • Between edge 25 and outer wall of the inner sleeve is a gapless layer of a against the can contents (both outer box as inner sleeve) resistant adhesive 24th
  • the guided in the inner sleeve 7 plunger 9 has four wings 17, which are cut out laterally to reduce the space required.
  • On the plate side there is a plate-shaped closure, which is located directly on the can side of the second membrane 15.
  • the plunger 9 is chamfered in such a way that it has its membrane-closest point 16 in the periphery; upon actuation of the plunger 9, the membrane is pierced there first.
  • the beveled cylindrical design of the plunger end 16 as a hollow cylinder with sharp edges then leads to a punching / cutting a cylindrical opening from the membrane eighth
  • the spring basket 11 itself consists of a plastic sleeve, which is provided at its can end with an inner circumferential projection 21 which serves as an abutment for a coil spring 13 mounted therein.
  • the coil spring 13 is supported on the plate side to a circumferential projection 22 of the trigger 12 off. In the rest position, the spring 13 exerts a pressure on the trigger 12 so that it is pressed with its sealing seat 23 against the arranged in the plate 6 ring seal 20.
  • the trigger 12 terminates at its protruding from the plate 6 end in a bolt 14 which protrudes by the length of the can, the trigger 12 must be pushed in toproofsprengen over the plunger 9, the lid 8.
  • the spring sleeve 11 has plate-side an extension 27 which engages behind the inner molding 19 of the base plate 6 and ensures an immovable seat on the base plate 6.
  • the bottom plate 19 which has the shape of a valve plate of a conventional aerosol can, is crimped around the seal 20 and the spring basket 11 placed thereon. The crimping process ensures a solid composite of plate 6, spring cage 11 and sealing rubber 20, due to the interaction of the indentation 28 of the plate 6 and the extension 27 of the spring cage eleventh
  • the trigger 12 is divided into the located within the spring basket section and a protruding pin 14, via which the triggering process is controlled.
  • a tip 29 is located immediately adjacent to the second membrane 15 and acts on actuation against the bottom end of the plunger 9. The second membrane 15 is thereby destroyed, which promotes the escape of the contents of the inner sleeve into the can and the mixing of the two components.
  • a circumferential sealing seat 23 (FIG. 5) which protrudes relative to the pin 14 and acts with its projecting edge against the seal 20.
  • FIG. 3 shows a second variant of an inner sleeve of a pressure cell according to the invention, in which inner sleeve 7 and diaphragm 8 are integrally connected to one another. Also in this case cans as well as plate side, the inner sleeve 7 is completely sealed off from the other contents of the can. Tappet 9 and 11 spring cage otherwise have the structure shown in Figure 2 and the same mode of action.
  • the membrane 15 is missing. A tip on the trigger 12 for piercing the second membrane provided in FIG. 2 is therefore no longer necessary.
  • inner sleeve 7 is preferably made in one piece according to Figure 3, d. H. Inner sleeve 7 and membrane 8 are not subsequently connected to each other.
  • the wall thickness of sleeve 7 and membrane 8 are also in the range of 0.3 to 0.8 mm. Gluing or soldering of inner sleeve and membrane is also possible.
  • the inner sleeve 7 is crimped both with the bottom part 5 and with the plate 6 with the introduction of the usual seals.
  • the spring basket is introduced into the base plate 6 in the manner described above.
  • the plunger 9 is four-winged to ensure proper guidance within the inner sleeve 7, wherein the wings are cut out in the central region. On the membrane side, the four wings are completely formed and evenly chamfered so that a membrane-next point 16 is formed, which initiates the tearing process on the membrane 8 upon actuation of the trigger and plunger.
  • the tearing process is characterized by the pressure prevailing in the can, which is significantly increased in relation to that in the inner sleeve and a denting of the membrane 8 in the inner sleeve, so that they are in the region of the membrane-closest point 16 of the plunger 9 to the plunger cross invested, promoted.
  • Figure 4 shows an inventively usable spring cage 11 with a can-side abutment 21 for the coil spring mounted therein and a plate provided extension 27 for crimping and fixing to the base plate 6.
  • the extension 27 in the form of a circumferential bead is in this embodiment accompanied by a truncation 30 am inner edge and shape of a peripheral edge 31 which is pressed against the rubber seal 20 during the crimping process with the plate 6.
  • FIG. 5 shows a trigger 12 which is used according to the invention and has a tip 29, the abutment 22 for the helical spring, the Pin 14 and the opposite to the spring mounted in the part of the trigger and the pin 14 projecting, but against the abutment 22 recessed sealing seat 23 which is provided with a force acting against the seal 20 circumferential edge; in the sectional view, this represents a slight undercut.
  • FIG. 6 shows a further preferred embodiment of an inner sleeve 7 to be used according to the invention with an arrangement on a valve disk 6.
  • the arrangement of the inner sleeve on the valve plate 6 has the advantage that the aerosol can need not have a specially designed bottom portion.
  • the inner sleeve 7 with plunger 9 and cover 8 has the plate side, the second diaphragm 15, which hermetically seals the inner sleeve thereto to the plate.
  • the plate side is followed by a cylindrical receptacle 18, which serves for fixing on the spring cage 11.
  • the inner sleeve 7 On the bottom side, the inner sleeve 7 has a membrane 8 screwed onto it, the outer wall of which is provided with an internal thread which cooperates with an external thread on the inner sleeve 7. For hermetic sealing of the threaded area is consistently provided with an adhesive layer.
  • the construction of the inner sleeve according to FIG. 6 corresponds to that in FIG. 2.
  • the inner sleeve 7 is plugged with its receptacle 18 on the can-side end of the spring cage 11 with this fixed, that a detachment upon actuation of the trigger 12 is excluded.
  • the connection is advantageously carried out in that the receptacle 18 is verclincht to the spring cage 11, preferably such that the free end of the receptacle 18 is guided around an outer circumferential projection 32 (see Figure 7) of the spring cage 11.
  • the spring cage 11 with the trigger 12 is at the same time part of the valve mechanism, it is expedient to use the trigger 12 physically separate from the trigger pin 14.
  • the trigger 12 has a receptacle 33 for the release pin 14, which receives the release pin for the release operation, from which the release pin can be pulled out again after triggering.
  • the same shot then takes a conventional spray head, as it is used for aerosol cans.
  • Preferred are so-called female valves with lateral slots and a pin which projects into the receptacle 33.
  • the valve In order to facilitate the access of the can contents in the spring sleeve and thus the valve, it is expedient to provide at least one opening 34 in the spring cage itself. After release of the inner sleeve and replacement of the trigger pin 14 against a spray head, the pressure can contents through the opening (s) 34 flow into the spring cage and be discharged through the actuated valve 4 from the pressure cell.
  • the apertures 34 have a further function in connection with the filling of the can.
  • the filled inner sleeve is applied with the valve plate on the can end and crimped with this.
  • the can is filled with the propellant gas through the valve opening, typically propane, butane, dimethyl ether and / or fluorohydrocarbon (134a).
  • the filling of the can takes place with a pressure of up to 60 bar in order to make the process as short as possible in terms of time. At a pressure of up to 60 bar but there is a risk that the membrane 15 bursts under this pressure itself or by the action of the pressure-actuated trigger 12.
  • the openings 34 in the valve basket 11 are provided at the plate-side end of the valve basket, in as close as possible to the valve itself.
  • the valve-side sealing is effected by a provided at its plate-side end Sealing seat 23 in the form of a circumferential projection which acts against the seal 20 between the spring cage 11 and plate 6 in the region of the central formation 19.
  • the distance of the trigger 12 to the membrane 15 must be reflected in the length of the trigger pin 14, such that the trigger pin has an overall length, the distance of the trigger 12 to the diaphragm and further to the path of the plunger 9, the this must cover for tearing the membrane 8 corresponds.
  • the spring travel is correspondingly long.
  • FIG. 7 shows an illustration of the spring cage with trigger 12 according to FIG. 6 in detail.
  • the valve disk 6 has in its central region a molding 19 with an opening, in the can side, a seal 20 in the form of a perforated disc, preferably made of a rubber-like material is used.
  • the spring cage 11 is fixed via its extension 27.
  • the head edge arranged peripheral edge 31 acts against the rubber seal 20 and seals the can contents against the central opening in the plate and in the seal 20 from. Due to the Verkrimpungsprozeß in the formation of the spring cage 11 in the central indentation 19 of the valve disc 6, the individual components are positively and non-positively and sealingly connected.
  • the free end of the receptacle 18 is guided around an outer circumferential projection 32 of the spring basket 11.
  • the spring cage 11 has immediately below the fixing on the valve plate 6 openings 34, which allow the can contents to penetrate into the spring basket.
  • the coil spring 13 Inside the spring basket 11 is the coil spring 13, which is supported on an inner projection 21 of the spring cage 11 and against an outer projection 22 of the trigger 12. In a relaxed state, the coil spring 13 presses the trigger 12 with its peripheral edge 23 against the sealing rubber 20, so that the pressure cell is closed in this state.
  • a conventional valve is inserted into the recess 33, which is actuated by pressing.
  • the trigger moves by a defined path into the can so that the can contents can pass unhindered through the apertures 34 into and out of the spring cage.
  • the openings 34 also have the purpose of allowing the already sealed can with propellant gas to pass through the central opening in the gasket 20 to allow the propellant gas to travel quickly into the can contents.
  • the propellant gas supply through the gasket 20 through the propellant gas is pressed with the intended pressure in the spring sleeve, so that the trigger 12 moves by a defined path in the direction of the membrane 15, but without reaching them, so that after the release of the Openings 34, the gas can escape under relaxation laterally into the can.
  • Pressure cans according to the embodiment of Figure 6 are used in use "head down", that is, the valve points down. Pressure cans according to FIGS. 2 and 3 can be used upright when a riser pipe is introduced, or, in the absence of a riser pipe, upside down. The use with spray guns is possible and intended.
  • can side in the application refers to a can-inward arrangement
  • ish-side designates an arrangement to the respective plate (in the valve or bottom region).

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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Nozzles (AREA)

Abstract

Pressurized can comprising a body (2), a dome (3) accommodating a valve (4), a concavely shaped bottom (5), an inner casing (7) attached to a cup (6), a push rod (9) arranged in the inner casing (7), said push rod (9) being actuated through the cup (6) and intended to force open the inner casing (7), with said inner casing (7) being joined to the cup (6) via a spring cage (11), said spring cage (11) containing a spring-loaded trigger (12) which acts on the push rod (9) which, in turn, acts on a cover (8) arranged at the can-side end of the inner casing (7), said cover (8) being a membrane which seals the inner casing (7) at its can-side end hermetically against the contents of the pressurized can (1) and which is torn open by the push rod (9) when the trigger (12) is actuated.

Description

Die Erfindung betrifft eine Druckdose mit einer Zarge, einem Dom zur Aufnahme eines Ventils, einem eingewölbten Boden, einer an einen Teller angeordneten Innenhülse, einem in der Innenhülse angeordneten Stößel zum Aufsprengen der Innenhülse, der durch den Teller hindurch betätigbar ist, wobei die Innenhülse über einen Federkorb mit dem Teller verbunden ist, der Federkorb einen Auslöser federnd gelagert enthält, der auf den Stößel wirkt, welcher Stößel gegen einen am dosenseitigen Ende der Innenhülse angeordneten Abschluß wirkt, sowie die Verwendung derartiger Druckdosen für 2-Komponentensysteme. Derartige Druckdosen sind insbesondere für die Lagerung und das Ausbringen von 2K-Dicht- und Isolierschäumen, 2K-Klebstoffen und 2K-Lacken geeignet.The invention relates to a pressure cell with a frame, a dome for receiving a valve, a vaulted bottom, an inner sleeve disposed on a plate, a disposed in the inner sleeve plunger for rupturing the inner sleeve, which is actuated through the plate, wherein the inner sleeve a spring cage is connected to the plate, the spring cage contains a trigger resiliently mounted, which acts on the plunger, which plunger acts against a arranged at the can end of the inner sleeve termination, and the use of such pressure cans for 2-component systems. Such pressure cans are particularly suitable for the storage and application of 2K sealing and insulating foams, 2K adhesives and 2K paints.

Die Erfindung bezieht sich insbesondere auch auf die Ausbildung von Druckdosen, welche neben den flüssigen Substanzen der Hauptkomponente in der Innenhülse eine zweite Komponente aufnehmen, die mit der Hauptkomponente zum fertigen Produkt, etwa einem Mehrkomponentenlack, reagiert. Gleichermaßen läßt sich aber die Erfindung auch für 2K-Formulierungen für andere Zwecke einsetzen, etwa in der Oberflächentechnik oder bei der Generierung von Kunststoffschäumen.The invention also relates in particular to the formation of pressure cans, which in addition to the liquid substances of the main component in the inner sleeve receive a second component which reacts with the main component to the finished product, such as a multicomponent varnish. Equally, however, the invention can also be used for 2K formulations for other purposes, such as in surface technology or in the generation of plastic foams.

Die in dem Druckbehälter enthaltenen Substanzen der Hauptkomponente sind flüssig und bestehen beispielsweise aus einem härtbarem Lackbindemittel, Lösungsmitteln und dem flüssigen Treibgas, das zum Ausbringen der Komponente benutzt wird. Die weitere Komponente ist in einer relativ geringen Menge in einer Innenhülse vorhanden und besteht zumeist aus einer mit der Hauptkomponente schnell reagierenden Verbindung, etwa im 2K-System Polyisocyanat/Polyol. Gegebenenfalls können Katalysatoren zugegen sein. Die Komponente in der Innenhülse dient dazu, das Aushärten und die Qualität des Produktes zu beeinflussen, in der Regel durch Beschleunigung der Aushärtung, Erhöhung der Festigkeit oder Witterungsbeständigkeit, oder dergleichen. Die zweite Komponente wird in der Regel kurz vor dem Ausbringen des Schaums durch Absprengung des Deckels des Innenbehälters in die Druckdose eingebracht und durch Schütteln darin eingemischt.The substances of the main component contained in the pressure vessel are liquid and consist for example of a curable lacquer binder, solvents and the liquid propellant used to dispense the component. The further component is present in a relatively small amount in an inner sleeve and usually consists of one with the main component fast-reacting compound, such as in the 2K system polyisocyanate / polyol. Optionally, catalysts may be present. The component in the inner sleeve serves to influence the curing and the quality of the product, usually by accelerating the curing, increasing the strength or weather resistance, or the like. The second component is usually introduced shortly before the application of the foam by blowing the lid of the inner container in the pressure cell and mixed by shaking therein.

Aus DE 82 27 229 U ist eine Druckdose mit einem durch Umformen eines aus Metall bestehenden Formteils gewonnenen einteiligen Boden bekannt. In einer Aussparung dieses Bodens ist der mit einem Außengewinde versehene Hals eines Zusatzbehälters eingesetzt und mit Hilfe einer von außen aufgeschraubten Mutter unter Verformung einer O-Ringdichtung zwischen einer Schulter des Zusatzbehälters und dem inneren Rand der Bodenaussparung verspannt. Die ihrerseits durch eine kolbenförmige Dichtung im Inneren des Zusatzbehälters ausgeführte und abgedichtete Stange ist als Welle ausgebildet, die sich in dem Zusatzbehälterhals dreht und innen auf diesem abstützt. Wird die Welle von außen angetrieben, führt das zum formschlüssigen Eingriff ihres inneren Endes mit dem Deckel des Zusatzbehälters, der dadurch gegen den Innendruck in die Dose abgesprengt wird.From DE 82 27 229 U a pressure cell is known with a formed by forming a metal molded part one-piece bottom. In a recess of this bottom of the externally threaded neck of an additional container is inserted and braced by means of a nut screwed from the outside under deformation of an O-ring seal between a shoulder of the additional container and the inner edge of the bottom recess. The executed in turn by a piston-shaped seal in the interior of the additional container and sealed rod is designed as a shaft which rotates in the Zusatzbehälterhals and internally supported on this. If the shaft is driven from the outside, this leads to the positive engagement of its inner end with the lid of the additional container, which is thereby blasted off against the internal pressure in the can.

Ausgangspunkt der Erfindung ist die WO 85/00157 A, in der eine Druckdose zum Ausbringen von ein- oder mehrkomponentigen Substanzen beschrieben ist, die in ihrem Inneren einen eine weitere Komponente aufnehmenden Zusatzbehälter aufweist. Der Innenbehälter weist einen inneren Deckel auf, der über eine auf den Boden der Druckdose auf das Innere des Innenbehälters geführte Stange abgesprengt werden kann. Der Stößel ist innerhalb des Zusatzbehälters beweglich gelagert und durch eine im Sickenteller des Dosenbodens angeordnete Dichtung eingeführt. Eine Druckdose gemäß WO 85/00157 A ist in Figur 1 dargestellt.The starting point of the invention is WO 85/00157 A, in which a pressure cell for discharging single- or multi-component substances is described, which has in its interior a further component receiving additional container. The inner container has an inner lid, which can be blasted off via a guided on the bottom of the pressure cell to the interior of the inner container rod. The plunger is movably mounted within the additional container and inserted through a arranged in the sickle plate of the can bottom seal. A pressure cell according to WO 85/00157 A is shown in FIG.

Beide Druckdosen nach dem Stand der Technik weisen eine Innenhülse auf, die in der Regel aus Polyolefinen gefertigt ist. Bevorzugtes Material ist Polypropylen. Diese Kunststoffe haben sich an und für sich bewährt, weisen aber den Nachteil auf, daß sie für einige Treibgaskomponenten durchlässig sind und Lösungsmitteln, wie Estern, Ketonen und Aromaten, nicht ausreichend Stand halten. Insbesondere 2K-Lacke enthalten in der Regel aber solche Lösungsmittel, was bisher ihre Anwendung aus 2K-Druckdosen sehr erschwerte. Darüber hinaus sind diese Dosen, wegen der Vielzahl der zur Fertigung benötigten Einzelteile und ihres Aufbaus relativ aufwendig und kostenintensiv in der Fertigung. Materialbedingt, insbesondere bei Zusammenwirkung von Kunststoff-Metallteilen kommt es immer wieder zu Dichtigkeitsproblemen, die sich nur schwer beherrschen lassen und immer wieder zu Fehlchargen führen.Both prior art pressure cans have an inner sleeve, which is usually made of polyolefins. Preferred material is polypropylene. These plastics have proven themselves, but they do the disadvantage that they are permeable to some propellant gas components and solvents, such as esters, ketones and aromatics, do not sufficiently withstand. In particular, 2-component paints usually contain such solvents, which has hitherto made their use of 2-component pressure doses very difficult. In addition, these cans, because of the large number of items required for the production and their construction relatively expensive and expensive to manufacture. Due to the material, in particular in the interaction of plastic metal parts, there are always tightness problems that are difficult to control and lead again and again to faulty batches.

Aus WO 02/076852 A1 ist eine Druckdose bekannt, die hinsichtlich des Aufbaus der Innenhülse bereits verbessert ist und das Dichtproblem im Tellerbereich durch eine angeformte Membran bzw. eine Integration des Tellers in die Innenhülse löst, so daß in dieser Position keine Dichtungen mehr benötigt werden. Die Innenhülse weist aber nach wie vor einen herkömmlichen Deckel auf, der zur Abdichtung einen O-Ring benötigt. Insbesondere bei 2 K-Lacksystemen, die Aromaten als Lösemittel und Polyisocyanate als zweite Komponente aufweisen, ergibt sich aber bei langen Lagerzeiten und/oder hohen Temperaturen eine nicht unerhebliche Einwanderung beider Komponenten in das Dichtsystem, was zu Problemen beim Absprengen des Deckels führen kann.From WO 02/076852 A1 a pressure cell is known, which is already improved in terms of the construction of the inner sleeve and the sealing problem in the plate area by a molded membrane or an integration of the plate in the inner sleeve dissolves, so that in this position no more seals are needed , However, the inner sleeve still has a conventional lid, which requires an O-ring for sealing. In particular, in the case of 2-component paint systems which contain aromatics as solvents and polyisocyanates as the second component, but with long storage times and / or high temperatures, a considerable immigration of both components in the sealing system, which can lead to problems when blowing off the lid.

Der Erfindung liegt somit die Aufgabe zugrunde, die bekannten Druckdosen so weiterzubilden, daß deren Innenhülse eine gegen den Inhalt der Druckdose absolut dichte Einheit bildet.The invention is therefore the object of developing the known pressure doses so that the inner sleeve forms an absolutely tight against the contents of the pressure cell unit.

Diese Aufgabe wird mit einer Druckdose der eingangs genannten Art gelöst, bei der der Abschluß eine Membran ist, welche die Innenhülse an ihrem dosenseitigen Ende hermetisch gegen den Inhalt der Druckdose abschließt, und diebei Betätigung des Auslösers durch den Stößel aufgerissen wird, wobei der Druck innerhalb der Innenhülse (7) niedriger ist als der Druck außerhalb der Innenhülse (7) und sich die Membran (8) in die Innenhülse (7) hinein wölbt.This object is achieved with a pressure cell of the type mentioned, in which the conclusion is a membrane which hermetically seals the inner sleeve at its can end against the contents of the pressure box, and which is torn open by the plunger upon actuation of the trigger, wherein the pressure within the inner sleeve (7) is lower than the pressure outside the inner sleeve (7) and the membrane (8) bulges into the inner sleeve (7).

Erfindungsgemäß wird nun die Innenhülse dosenseitig mit einer Membran ausgestattet, so daß in diesem kritischen Bereich eine vollständige Abtrennung - ohne die Verwendung von herkömmlichen separaten Dichtelementen, etwa O-Ringe - gegen den übrigen Doseninhalt gegeben ist, dabei kann die Membran an die Innenhülse angeklebt sein oder als integraler Teil der Innenhülse ausgebildet sein, d. h. Innenhülse und Membran sind einstückig gefertigt. Bei der angeklebten Membran weist die Membran selbst vorzugsweise einen umlaufenden Rand auf, der bei aufgelegter Membran die Innenhülse um eine Distanz, beispielsweise einige Millimeter, umgreift und dichtend verklebt ist. Der Rand kann auch mit einem Innengewinde versehen sein und mit einem Außengewinde der Innenhülse am dosenseitigen Ende verschraubt sein; auch in diesem Fall wird die Dichtwirkung durch die Verwendung eines Klebstoffes herbeigeführt.According to the invention, the inner sleeve is now equipped on the can side with a membrane, so that in this critical area a complete separation - without the use of conventional separate sealing elements, such as O-rings - is given against the remaining can contents, while the membrane may be glued to the inner sleeve or formed as an integral part of the inner sleeve be, ie inner sleeve and membrane are made in one piece. In the glued-on membrane, the membrane itself preferably has a peripheral edge which, when the membrane is applied, surrounds the inner sleeve by a distance, for example a few millimeters, and is adhesively bonded in a sealed manner. The edge may also be provided with an internal thread and be screwed to an external thread of the inner sleeve on the can-side end; Also in this case, the sealing effect is brought about by the use of an adhesive.

Als Klebstoffe kommen insbesondere herkömmliche 2 K-Klebstoffsysteme in Frage, beispielsweise aminhärtende Epoxiklebstoffe oder amin- oder OHhärtende Polyisocyanatklebstoffe. Die Auswahl des Klebstoffes hängt von dessen Beständigkeit gegen den jeweiligen Doseninhalt ab; das bestgeeignete Klebstoffsystem kann durch einfache Versuche ermittelt werden.Suitable adhesives are, in particular, conventional 2K adhesive systems, for example amine-curing epoxy adhesives or amine- or OH-curing polyisocyanate adhesives. The choice of adhesive depends on its resistance to the particular contents of the can; the most suitable adhesive system can be determined by simple tests.

Die in den erfindungsgemäßen Druckdosen zum Einsatz kommende Innenhülse kann aus üblichen Materialien gefertigt werden, besteht vorzugsweise jedoch aus Aluminium. Kunststoffvarianten, beispielsweise aus Polypropylen, sind ebenfalls möglich. Dort, wo die Innenhülse integraler Bestandteil des Bodentellers ist, kann bei mit höherem Druck beaufschlagten Druckdosen allerdings nur ein entsprechend druckbeständiger Werkstoff verwandt werden, vorzugsweise Aluminium. Die Verwendung von Weißblech ist ebenfalls möglich. Die Techniken, mit denen entsprechende Kunststoff- und Metallteile gefertigt werden, sind dem Fachmann an und für sich bekannt.The inner sleeve used in the pressure cans according to the invention can be made of conventional materials, but preferably consists of aluminum. Plastic variants, for example made of polypropylene, are also possible. Where the inner sleeve is an integral part of the bottom plate, however, only a corresponding pressure-resistant material can be used in pressurized pressurized with higher pressure, preferably aluminum. The use of tinplate is also possible. The techniques with which corresponding plastic and metal parts are manufactured are known to the skilled person in and of themselves.

Bei der erfindungsgemäßen Variante mit der an die Innenhülse angeklebten Membran ist die Innenhülse über einen Federkorb mit dem Boden- oder Ventilteller der Druckdose verbunden. Bei dem Bodenteller handelt es sich vorzugsweise um einen Teller, wie er am ventilseitigen Ende der Druckdose zur Integration der Ventileinheit in den Dosendom eingesetzt wird. Solche Teller können außerordentlich einfach und kostengünstig gefertigt werden. Somit ergibt sich der Vorteil, daß für den Bodenteller die separate Fertigung eines Teils nicht erforderlich ist. Besonders vorteilhaft ist allerdings die Anordnung der Innenhülse am Ventilteller im Dom der Dose. In diesem Fall kann der Bodenteller entfallen.In the variant according to the invention with the membrane glued to the inner sleeve, the inner sleeve is connected via a spring cage with the bottom or valve plate of the pressure cell. The bottom plate is preferably a plate, as it is used at the valve end of the pressure cell to integrate the valve unit in the can end. Such plates can be made extremely simple and inexpensive. Thus, there is the advantage that the separate production of a part is not required for the bottom plate. However, the arrangement of the inner sleeve on the valve plate in the dome of the can is particularly advantageous. In this case, the bottom plate can be omitted.

Die Innenhülse mit Membran ist über einen Federkorb mit dem Teller verbunden. Dies kann beispielsweise dadurch geschehen, daß die Innenhülse an ihrem tellerseitigen Ende eine Aufnahme hat, die zur form- und/oder kraftschlüssigen Festlegung am Federkorb dient. Zweckmäßigerweise sind Aufnahme und Federkorb miteinander verclincht oder vercrimpt, wobei der Federkorb zur Verbesserung des Sitzes einen umlaufenden Vorsprung oder eine umlaufende Nut aufweisen kann, um den oder in die die Aufnahme herum- oder hinein verformt wird. Dichtungselemente sind nicht erforderlich, da ein Eindringen des Doseninhaltes in die Innenhülse durch die Membran zuverlässig verhindert wird. Zweckmäßigerweise befindet sich am Übergang der Innenhülse zur Aufnahme eine zweite angeformte Membran, die wie nachstehend beschrieben eingesetzt wird.The inner sleeve with membrane is connected to the plate via a spring cage. This can be done, for example, that the inner sleeve has a receptacle at its plate-side end, which serves for positive and / or non-positive fixing to the spring basket. Conveniently, the receptacle and spring basket are clinched or crimped together, wherein the spring basket to improve the seat may have a circumferential projection or a circumferential groove around which or in which the recording around or is deformed. Sealing elements are not required because penetration of the can contents into the inner sleeve is reliably prevented by the membrane. Conveniently located at the transition of the inner sleeve for receiving a second molded membrane, which is used as described below.

Innerhalb der Federhülse ist ein Auslöser federnd gelagert, der auf die zweite Membran, durch diese hindurch und auf den Stößel in der Innenhülse wirkt. Das tellerseitige Ende des Auslösers - als Auslösestift bezeichnet - ragt durch den Teller hindurch aus der Druckdose hinaus. Stift und Auslöser können eine Einheit bilden, sind aber bei Anordnung der Innenhülse am Ventilteller getrennt; der Auslöser weist in diesem Fall eine Aufnahme auf, in die der Stift zur Auslösung der Innenhülse eingreift, und in die nach Auslösung der Dose und Entfernung des Stiftes ein Ventil eingesetzt wird. Der Federweg ist dabei so bemessen, daß der Auslöser den Stößel zuverlässig gegen die (erste) Membran der Innenhülse treibt und diese aufreißt. Im allgemeinen ist dazu ein Federweg von etwa 5 bis 10 mm voll ausreichend; um den gleichen Federweg ragt der Auslösestift des Stößels aus dem Tellerboden heraus. Zur Betätigung des Stößels wird die Dose mit dem Stift gegen eine flache und feste Oberfläche gestoßen, oder der Stift mit der Hand eingedrückt.Within the spring sleeve, a trigger is resiliently mounted, which acts on the second membrane, therethrough and on the plunger in the inner sleeve. The plate end of the trigger - referred to as trigger pin - protrudes through the plate out of the pressure box. Pin and trigger can form a unit, but are separated when the inner sleeve on the valve disc; the trigger in this case has a receptacle in which engages the pin for triggering the inner sleeve, and in the after release of the can and removal of the pin a valve is used. The spring travel is dimensioned so that the trigger drives the plunger reliably against the (first) membrane of the inner sleeve and this ruptures. In general, a spring travel of about 5 to 10 mm is fully sufficient; by the same spring travel of the trigger pin of the plunger protrudes from the plate bottom. To operate the plunger, the can is pushed with the pin against a flat and solid surface, or the pin pressed by hand.

Es ist vorteilhaft, die Federhülse mit wenigstens einer Durchbrechung zu versehen, um den Druckausgleich zwischen Dosenraum und Innenraum der Federhülse zu erleichtern. Bei Anordnung der Innenhülse am Ventilteller haben diese Durchbrechungen auch den Zweck, eine schnelle Befüllung der Druckdose mit Treibgas durch den Federkorb hindurch zu ermöglichen. Die Befüllung erfolgt mit Drücken von bis zu 60 bar; um eine unzeitige Auslösung der Innenhülse durch Zerstörung der Membran bei der Befüllung zu vermeiden, muß eine rasche Druckentlastung gewährleistet sein. Diese erfolgt durch die Durchbrechungen, deren Gesamtquerschnitt zweckmäßigerweise im Verhältnis von 3:1 bis 6:1 zum freien Querschnitt der Befüllungsvorrichtung liegt.It is advantageous to provide the spring sleeve with at least one opening in order to facilitate the pressure equalization between the box space and the interior of the spring sleeve. When the inner sleeve is arranged on the valve disk, these openings also have the purpose of allowing rapid filling of the pressure cell with propellant gas through the spring cage. The filling takes place with pressures of up to 60 bar; in order to avoid an untimely release of the inner sleeve by destroying the membrane during filling, one must be ensured rapid pressure relief. This takes place through the openings, the total cross section is expediently in the ratio of 3: 1 to 6: 1 to the free cross section of the filling device.

Die Membranen der Innenhülse schließen also den Inhalt der Innenhülse während der Lagerzeit der Dose zuverlässig gegen den übrigen Doseninhalt ab. Nach Auslösen der Dose durch Betätigung des Auslösestiftes wird die zweite Membran durchstoßen. Gleichzeitig reißt der Stößel die erste Membran der Innenhülse auf, so daß der Hülseninhalt frei wird und sich mit dem Doseninhalt vermischen kann. Zu diesem Zweck ist es sinnvoll, daß die Druckdose eine Mischhilfe enthält, beispielsweise in Form einer darin frei beweglichen Stahlkugel.The membranes of the inner sleeve thus close the contents of the inner sleeve during the storage time of the can reliably against the remaining contents of the can. After triggering the can by pressing the trigger pin, the second membrane is pierced. At the same time, the plunger ruptures the first membrane of the inner sleeve so that the tube contents become free and can mix with the contents of the can. For this purpose, it makes sense that the pressure cell contains a mixing aid, for example in the form of a freely movable steel ball.

In der alternativen Ausführungsform der erfindungsgemäßen Druckdose ist die Innenhülse zusätzlich auch an dem Bodenteller verankert. In diesem Fall befindet sich der Federkorb im Inneren der Innenhülse, auf der Innenseite des Bodentellers. Der Auslöser ist mittels Stift durch den Teller des Bodens hindurch betätigbar und wirkt, ohne eine Membran durchstoßen zu müssen, unmittelbar auf den Stößel, der, wie zuvor beschrieben, die Membran aufreißt. Durch die Ausbildung einer Einheit aus Membran und Innenhülse ist auch hier die hermetische Abschließung der Innenhülse gegen den Druckdoseninhalt gewährleistet. Bodenseitig ergibt sich die hermetische Abschließung dadurch, daß Innenhülse und eingewölbter Boden wie auch der Bodenteller unter Einschluß von Dichtelementen miteinander vercrimpt sind.In the alternative embodiment of the pressure cell according to the invention, the inner sleeve is additionally anchored to the bottom plate. In this case, the spring cage is inside the inner sleeve, on the inside of the bottom plate. The trigger is actuated by means of a pin through the plate of the soil and acts, without having to pierce a membrane, directly on the plunger, which, as described above, the membrane ruptures. Due to the formation of a unit of membrane and inner sleeve, the hermetic closure of the inner sleeve against the pressure-dose contents is also ensured here. On the bottom side, the hermetic closure results from the fact that inner sleeve and vaulted bottom as well as the bottom plate are crimped together with the inclusion of sealing elements.

Es versteht sich, daß in dieser alternativen Ausführungsform Innenhülse und (erste) Membran ebenfalls miteinander verklebt sein können, wie zuvor beschrieben.It is understood that in this alternative embodiment inner sleeve and (first) membrane can also be glued together, as previously described.

In beiden Ausführungsformen ist der Federkorb in einer zentralen Ausformung des Tellers festgelegt. Diese Ausformung umschließt das sich bodenseitig nach außen hin erweiternde Ende des Federkorbs und verhindert, daß sich der Federkorb mit der Bewegung des Stiftes/Auslösers in die Dose hinein bewegt.In both embodiments, the spring basket is fixed in a central shape of the plate. This formation encloses the end of the spring basket, which widens outward on the bottom side, and prevents the spring cage from moving into the can with the movement of the pin / trigger.

Der Stößel hat in einer zweckmäßigen Ausführungsform mehrere Flügel entlang einer zentralen Achse, insbesondere vier Flügel. Dies führt zu einer Stabilisierung der Lage des Stößels in der Innenhülse, ohne daß ein übermäßiger Volumenbedarf entsteht. Um das Volumen des Stößels weiter zu vermindern, können Aussparungen oder Durchbrechungen vorgesehen sein. Da Stößel und Auslöser zumindest in der ersten Variante getrennte Einheiten bilden, ist eine separate Führung und Stabilisierung des Stößels unumgänglich.The plunger has, in an expedient embodiment, several wings along a central axis, in particular four wings. This leads to a stabilization of the position of the plunger in the inner sleeve, without an excessive volume requirement arises. To further reduce the volume of the plunger, recesses or openings may be provided. Since ram and trigger form separate units at least in the first variant, a separate leadership and stabilization of the plunger is essential.

Um das Aufreißen der Membran zu erleichtern und möglichst vollständig zu gestalten, ist es zweckmäßig, dem Stößel an seinem membranseitigen Ende beispielsweise die Form eines abgeschrägten und scharfkantigen Hohlzylinders zu geben, gegebenenfalls mit einer Spitze. Hierdurch gibt es einen Kontaktpunkt zwischen Stößel und Membran an der Peripherie des Stößels, der geeignet ist, die Membran dort zunächst zu perforieren und dann bei weiterem Vortreiben des Stößels eine in etwa kreisförmige Öffnung herauszustanzen oder zu schneiden.In order to facilitate the rupture of the membrane and to make it as complete as possible, it is expedient to give the ram, for example, the shape of a bevelled and sharp-edged hollow cylinder at its diaphragm-side end, optionally with a point. As a result, there is a contact point between the plunger and the diaphragm at the periphery of the plunger, which is suitable for first perforating the membrane there and then punching out or cutting an approximately circular opening upon further advancement of the plunger.

Da der Innenbehälter hermetisch gegen den übrigen Doseninhalt abgeschlossen ist und separat befüllt wird, ergibt sich automatisch eine Druckdifferenz zwischen dem Doseninhalt und dem Inhalt der Innenhülse. Hierdurch steht die Membran unter Druck und wölbst sich in den Innenzylinder hinein, was dazu führt, daß sich die Membran im Bereich des Membran-nächsten Punktes des Stößels an den Stößel anlegt. Dieses Anlegen fördert das großflächige Aufreißen der Membran.Since the inner container is hermetically sealed against the other contents of the can and is filled separately, there is automatically a pressure difference between the contents of the can and the contents of the inner sleeve. As a result, the membrane is under pressure and bulges into the inner cylinder, which causes the membrane in the region of the membrane-nearest point of the plunger rests against the plunger. This application promotes the large-scale tearing of the membrane.

Wie bereits dargestellt, ist der Stößel an seinem membranseitigen Ende zweckmäßigerweise abgeschrägt, so daß ein Membran-nächster Punkt entsteht, und weist zur Stabilisierung innerhalb der Innenhülse vier Flügel auf. Für das Aufreißen der Membran nach Betätigung des Auslösers ist diese vierflüglige Variante in der Regel völlig aufreißend. Die Membran wird hierdurch kreuzförmig aufgeschnitten und reißt unter dem Druck des Doseninhalts völlig auf, so daß es zu einer schnellen Durchmischung kommt.As already shown, the plunger is suitably beveled at its end on the membrane, so that a membrane-closest point is formed, and has four wings for stabilization within the inner sleeve. For the tearing of the membrane after actuation of the trigger this four-winged variant is usually completely tearing. The membrane is thereby cut open in a cross shape and ruptures completely under the pressure of the contents of the can, so that there is a rapid mixing.

In beiden Ausführungsformen befindet sich eine Dichtung zwischen Federkorb und Teller im Bereich der zentralen Ausformung. Der in der zentralen Ausformung festgekrimpte Federkorb wirkt dabei gegen die Dichtung, so daß ein Austreten des Doseninhaltes durch den Teller ausgeschlossen ist. Die Dichtung, beispielsweise eine Gummidichtung, hat die Form einer durchbohrten Kreisscheibe, durch deren Zentrum der Stift des Auslösers aus der Druckdose herausragt. Der Auslöser weist an seinem tellerseitigen Ende einen Vorsprung auf, der, zweckmäßigerweise mit einem vorkragenden Rand, gegen die lochscheibenförmige Dichtung im Teller wirkt und eine Abschottung auch im Bereich des Stiftes nach außen bewirkt.In both embodiments, there is a seal between the spring cage and plate in the region of the central formation. The one in the central shape festkrkrimpte spring cage acts against the seal, so that leakage of the can contents is excluded by the plate. The seal, for example, a rubber seal, has the form of a pierced circular disk, through the center of which the pin of the trigger protrudes from the pressure box. The trigger has at its plate-side end a projection which, expediently with a projecting edge, acts against the hole-disc-shaped seal in the plate and causes a partitioning also in the region of the pin to the outside.

Der Auslöser weist tellerseitig, direkt anschließend an den Dichtvorsprung, einen weiteren Vorsprung auf, der als Widerlager für die im Federkorb geführte Schraubenfeder dient. Als weiteres Widerlager dient ein am ventilseitigen Ende des Federkorbs angeordneter innerer Vorsprung. Die Feder sorgt für einen sicheren Sitz des Auslösers mit seinem Dichtring am Dichtgummi und erlaubt gleichzeitig das Eindrücken des Bolzens um die gewünschte Länge zur Auslösung der Innenhülse.The shutter plate has, on the plate side, directly after the sealing projection, another projection which serves as an abutment for the guided in the spring cage coil spring. As a further abutment is arranged on the valve-side end of the spring cage inner projection. The spring ensures a secure fit of the trigger with its sealing ring on the rubber seal and at the same time allows the indentation of the bolt by the desired length to trigger the inner sleeve.

Die erfindungsgemäße Druckdose ist im übrigen auf konventionelle Weise gefertigt und ausgestattet. Dies gilt insbesondere auch für den Ventilbereich, und die ventilseitige Ausstattung, die es erlaubt, die Druckdose sowohl im Handbetrieb als auch als Kartusche auf Spritzpistolen einzusetzen.The pressure cell according to the invention is otherwise manufactured and equipped in a conventional manner. This is especially true for the valve area, and the valve-side equipment, which allows to use the pressure cell both in manual mode and as a cartridge on spray guns.

Die Erfindung wird durch die beigefügten Abbildungen näher erläutert. Es zeigen

Figur 1
eine Druckdose mit Innenhülse gemäß WO 85/00157 A;
Figur 2
eine Innenhülse für eine erfindungsgemäße Druckdose gemäß einer ersten Ausführungsform zur Anordnung an einem Bodenteller;
Figur 3
eine Innenhülse für eine erfindungsgemäße Druckdose gemäß einer zweiten Ausführungsform;
Figur 4
einen Federkorb für eine erfindungsgemäße Druckdose; und
Figur 5
einen Auslöser für eine erfindungsgemäße Druckdose;
Figur 6
eine Innenhülse für eine erfindungsgemäße Druckdose zur Anordnung an einem Ventilteller; und
Figur 7
den Tellerbereich der Ausführungsform gemäß Figur 6.
The invention is further illustrated by the accompanying drawings. Show it
FIG. 1
a pressure cell with inner sleeve according to WO 85/00157 A;
FIG. 2
an inner sleeve for a pressure cell according to the invention according to a first embodiment for placement on a base plate;
FIG. 3
an inner sleeve for a pressure cell according to the invention according to a second embodiment;
FIG. 4
a spring basket for a pressure cell according to the invention; and
FIG. 5
a trigger for a pressure cell according to the invention;
FIG. 6
an inner sleeve for a pressure cell according to the invention for arrangement on a valve disc; and
FIG. 7
the plate area of the embodiment according to FIG. 6.

Die Figuren 1 bis 7 sind Schnittfiguren.Figures 1 to 7 are sectional figures.

Die Druckdose 1 gemäß Figur 1 besteht aus einer Zarge 2, die am oberen Ende mit einem Dom 3 verschlossen ist. Der Dom 3 weist einen umgebördelten Rand auf, der Dom und Zarge miteinander verbindet und gleichzeitig eine dichte Verbindung der Teile herbeiführt. Der Dom 3 ist aus einer runden Platte hergestellt, einem aus Blech herausgeschnittenen Formteil, das durch Umformen die aus der Zeichnung ersichtliche gewölbte Form erhalten hat. Der innere Rand des Doms 3 ist wiederum umgebördelt und nimmt einen Ventilteller mit einem Ventil 4 auf.The pressure cell 1 according to Figure 1 consists of a frame 2, which is closed at the upper end with a dome 3. The dome 3 has a flanged edge, which connects the dome and frame together and at the same time brings about a tight connection of the parts. The dome 3 is made of a round plate, a molded part cut out of sheet metal, which has been obtained by forming the curved shape shown in the drawing. The inner edge of the mandrel 3 is in turn flanged and receives a valve plate with a valve 4.

Der Boden 5 ist ebenfalls über einen umgebördelten Rand mit der Zarge 2 verbunden und weist in seinem Zentrum einen Bodenteller 6 auf, oberhalb dessen sich die Innenhülse 7 befindet. Die Innenhülse 7 weist einen absprengbaren Deckel 8 auf. Im Inneren der Innenhülse 7 befindet sich ein Stößel 9, dessen Ende durch ein Dichtelement 10 unten aus der Druckdose herausgeführt ist. Beidseitig zum Dichtelement 10 weist der Stößel 9 Begrenzungselemente auf, die beide gegen das Dichtelement 10 wirken und die freie Weglänge des Stößels 9 innerhalb des Innenbehälters 7 begrenzen. Zum Absprengen des Deckels 8 vom Innenbehälter 7 wird der Stößel 9 durch Aufschlagen des Dosenbodens auf eine feste Oberfläche eingedrückt und in eine Aufwärtsbewegung versetzt. Das gummielastische Dichtelement 10 fängt diese Aufwärtsbewegung auf und führt nach Absprengen des Deckels 8 den Stößel 9 in seine Ausgangsposition zurück.The bottom 5 is also connected via a flanged edge to the frame 2 and has in its center on a base plate 6, above which the inner sleeve 7 is located. The inner sleeve 7 has a removable cover 8. Inside the inner sleeve 7 is a plunger 9, whose end is led out through a sealing element 10 below from the pressure cell. On both sides of the sealing element 10, the plunger 9 on limiting elements, both of which act against the sealing element 10 and limit the free path length of the plunger 9 within the inner container 7. To break off the lid 8 from the inner container 7, the plunger 9 is pressed by striking the can bottom on a solid surface and placed in an upward movement. The rubber-elastic sealing element 10 catches this upward movement and leads after breaking off the lid 8, the plunger 9 back to its original position.

Die Dose gemäß Figur 1 kann erfindungsgemäß mit den Innenhülsen gemäß Figur 2, 3 oder 6 ausgerüstet werden.According to the invention, the can according to FIG. 1 can be equipped with the inner sleeves according to FIG. 2, 3 or 6.

Figur 2 zeigt eine erfindungsgemäß gefertigte und zum Einsatz kommende Innenhülse 7 mit Stößel 9 und Deckel 8. Die Innenhülse 7 hat eine zylindrische Wand und ist tellerseitig durch eine Membran abgeschlossen. Tellerseitig schließt sich eine zylindrische Aufnahme 18 an, die zur Festlegung auf dem Federkorb 11 dient.Figure 2 shows an inventively manufactured and used for use inner sleeve 7 with plunger 9 and cover 8. The inner sleeve 7 has a cylindrical wall and is closed on the plate side by a membrane. The plate side is followed by a cylindrical receptacle 18, which serves for fixing on the spring basket 11.

Die Innenhülse kann aus einem dafür geeigneten Kunststoff gefertigt sein, ist jedoch zweckmäßigerweise aus Aluminium gefertigt. Bei Fertigung aus Aluminium sind geeignete Wandstärken für die Wandung etwa 0,3 bis 0,8 mm, für die beiden Membranen etwa 0,05 bis 0,10 mm.The inner sleeve may be made of a suitable plastic, but is suitably made of aluminum. When made of aluminum suitable wall thicknesses for the wall about 0.3 to 0.8 mm, for the two membranes about 0.05 to 0.10 mm.

Dosenseitig ist die Innenhülse 7 mit einer ersten Membran 8 verschlossen, die aus Aluminium oder Kunststoff gefertigt sein kann. Die Membran 8 weist umlaufend einen Rand 25 auf, der über den Außenrand der Innenhülse 7 greift. Zwischen Rand 25 und Außenwandung der Innenhülse befindet sich eine lückenlose Schicht eines gegen den Doseninhalt (sowohl Außendose wie Innenhülse) beständigen Klebstoffs 24.On the can side, the inner sleeve 7 is closed with a first membrane 8, which may be made of aluminum or plastic. The membrane 8 has circumferentially on an edge 25 which engages over the outer edge of the inner sleeve 7. Between edge 25 and outer wall of the inner sleeve is a gapless layer of a against the can contents (both outer box as inner sleeve) resistant adhesive 24th

Der in der Innenhülse 7 geführte Stößel 9 weist vier Flügel 17 auf, die zur Verminderung des Raumbedarfs seitlich ausgeschnitten sind. Tellerseitig befindet sich ein tellerförmiger Abschluß, der sich unmittelbar dosenseitig von der zweiten Membran 15 befindet. Dosenseitig ist der Stößel 9 dergestalt abgeschrägt, daß er in der Peripherie seinen Membran-nächsten Punkt 16 aufweist; bei Betätigung des Stößels 9 wird die Membran dort zuerst durchstoßen. Die abgeschrägte zylindrische Gestaltung des Stößelendes 16 als Hohlzylinder mit scharfen Kanten führt dann zu einem Ausstanzen/-schneiden einer zylindrischen Öffnung aus der Membran 8.The guided in the inner sleeve 7 plunger 9 has four wings 17, which are cut out laterally to reduce the space required. On the plate side, there is a plate-shaped closure, which is located directly on the can side of the second membrane 15. On the can side, the plunger 9 is chamfered in such a way that it has its membrane-closest point 16 in the periphery; upon actuation of the plunger 9, the membrane is pierced there first. The beveled cylindrical design of the plunger end 16 as a hollow cylinder with sharp edges then leads to a punching / cutting a cylindrical opening from the membrane eighth

Der Federkorb 11 selbst besteht aus einer Kunststoffhülse, die an ihrem dosenseitigen Ende mit einem innen umlaufenden Vorsprung 21 versehen ist, der als Widerlager für eine darin gelagerte Schraubenfeder 13 dient. Die Schraubenfeder 13 stützt sich tellerseitig an einen umlaufenden Vorsprung 22 des Auslösers 12 ab. In Ruhestellung übt die Feder 13 einen Druck auf den Auslöser 12 aus, so daß dieser mit seinem Dichtsitz 23 gegen die im Teller 6 angeordnete Ringdichtung 20 gepreßt wird. Der Auslöser 12 endet an seinem aus dem Teller 6 herausragenden Ende in einem Bolzen 14, der um die Länge aus der Dose herausragt, die der Auslöser 12 hineingestoßen werden muß, um über den Stößel 9 den Deckel 8 abzusprengen.The spring basket 11 itself consists of a plastic sleeve, which is provided at its can end with an inner circumferential projection 21 which serves as an abutment for a coil spring 13 mounted therein. The coil spring 13 is supported on the plate side to a circumferential projection 22 of the trigger 12 off. In the rest position, the spring 13 exerts a pressure on the trigger 12 so that it is pressed with its sealing seat 23 against the arranged in the plate 6 ring seal 20. The trigger 12 terminates at its protruding from the plate 6 end in a bolt 14 which protrudes by the length of the can, the trigger 12 must be pushed in to abzusprengen over the plunger 9, the lid 8.

Die Federhülse 11 weist tellerseitig eine Erweiterung 27 auf, die die innere Ausformung 19 des Bodentellers 6 hintergreift und für einen unverrückbaren Sitz am Bodenteller 6 sorgt. Bei der Fertigung wird der Bodenteller 19, der die Form eines Ventiltellers einer üblichen Aerosoldose hat, um die Dichtung 20 und den darauf aufgesetzten Federkorb 11 gekrimpt. Der Krimpvorgang sorgt für einen festen Verbund von Teller 6, Federkorb 11 und Dichtgummi 20, bedingt durch das Zusammenwirken der Einformung 28 des Tellers 6 und der Erweiterung 27 des Federkorbs 11.The spring sleeve 11 has plate-side an extension 27 which engages behind the inner molding 19 of the base plate 6 and ensures an immovable seat on the base plate 6. During manufacture, the bottom plate 19, which has the shape of a valve plate of a conventional aerosol can, is crimped around the seal 20 and the spring basket 11 placed thereon. The crimping process ensures a solid composite of plate 6, spring cage 11 and sealing rubber 20, due to the interaction of the indentation 28 of the plate 6 and the extension 27 of the spring cage eleventh

Der Auslöser 12 gliedert sich in die innerhalb des Federkorbs gelegenen Abschnitt und einen herausragenden Stift 14, über den der Auslöseprozeß gesteuert wird. Eine Spitze 29 befindet sich unmittelbar angrenzend an die zweite Membran 15 und wirkt bei Betätigung gegen das bodenseitige Ende des Stößels 9. Die zweite Membran 15 wird dabei zerstört, was den Austritt des Inhaltes der Innenhülse in die Dose und die Vermischung der beiden Komponenten fördert. Unmittelbar bodenseitig angrenzend an das Widerlager 22 befindet sich ein ebenfalls umlaufender Dichtsitz 23 (Fig. 5), der gegenüber dem Stift 14 hervorspringt und mit seiner vorstehenden Kante gegen die Dichtung 20 wirkt.The trigger 12 is divided into the located within the spring basket section and a protruding pin 14, via which the triggering process is controlled. A tip 29 is located immediately adjacent to the second membrane 15 and acts on actuation against the bottom end of the plunger 9. The second membrane 15 is thereby destroyed, which promotes the escape of the contents of the inner sleeve into the can and the mixing of the two components. Immediately on the bottom side adjacent to the abutment 22 there is a likewise circumferential sealing seat 23 (FIG. 5) which protrudes relative to the pin 14 and acts with its projecting edge against the seal 20.

Figur 3 zeigt eine zweite Variante einer Innenhülse einer erfindungsgemäßen Druckdose, bei der Innenhülse 7 und Membran 8 integral miteinander verbunden sind. Auch in diesem Fall ist dosen- wie tellerseitig die Innenhülse 7 vollständig gegen den übrigen Doseninhalt abgeschottet. Stößel 9 und Federkorb 11 haben im übrigen den in Figur 2 gezeigten Aufbau und die gleiche Wirkungsweise.FIG. 3 shows a second variant of an inner sleeve of a pressure cell according to the invention, in which inner sleeve 7 and diaphragm 8 are integrally connected to one another. Also in this case cans as well as plate side, the inner sleeve 7 is completely sealed off from the other contents of the can. Tappet 9 and 11 spring cage otherwise have the structure shown in Figure 2 and the same mode of action.

In der Ausführungsform gemäß Figur 3 fehlt die Membran 15. Eine Spitze am Auslöser 12 zur Durchstoßung der in Figur 2 vorgesehenen zweiten Membran ist deshalb nicht mehr erforderlich.In the embodiment according to FIG. 3, the membrane 15 is missing. A tip on the trigger 12 for piercing the second membrane provided in FIG. 2 is therefore no longer necessary.

Es ist festzuhalten, daß die Innenhülse 7 gemäß Figur 3 vorzugsweise einstückig gefertigt ist, d. h. Innenhülse 7 und Membran 8 nicht nachträglich miteinander verbunden sind. Die Wandstärken von Hülse 7 und Membran 8 liegen auch hier im Bereich von 0,3 bis 0,8 mm. Ein Verkleben oder Verlöten von Innenhülse und Membran ist aber ebenfalls möglich.It should be noted that the inner sleeve 7 is preferably made in one piece according to Figure 3, d. H. Inner sleeve 7 and membrane 8 are not subsequently connected to each other. The wall thickness of sleeve 7 and membrane 8 are also in the range of 0.3 to 0.8 mm. Gluing or soldering of inner sleeve and membrane is also possible.

Bodenseitig ist die Innenhülse 7 sowohl mit dem Bodenteil 5 als auch mit dem Teller 6 unter Einbringung der üblichen Dichtungen vercrimpt. Der Federkorb ist auf die zuvor beschriebene Art und Weise in den Bodenteller 6 eingebracht.On the bottom side, the inner sleeve 7 is crimped both with the bottom part 5 and with the plate 6 with the introduction of the usual seals. The spring basket is introduced into the base plate 6 in the manner described above.

Der Stößel 9 ist vierflügelig ausgebildet, um eine einwandfreie Führung innerhalb der Innenhülse 7 zu gewährleisten, wobei die Flügel im zentralen Bereich ausgeschnitten sind. Membranseitig sind die vier Flügel vollständig ausgebildet und gleichmäßig so abgeschrägt, daß sich ein Membran-nächster Punkt 16 ausbildet, der bei Betätigung des Auslösers und Stößels den Aufreißprozeß an der Membran 8 einleitet. Der Aufreißprozeß wird dabei durch den in der Dose herrschenden Druck, der gegenüber dem in der Innenhülse deutlich erhöht ist und ein Einbeulen der Membran 8 in die Innenhülse hinein, so daß sie sich im Bereich des Membran-nächsten Punktes 16 des Stößels 9 an das Stößelkreuz anlegt, gefördert.The plunger 9 is four-winged to ensure proper guidance within the inner sleeve 7, wherein the wings are cut out in the central region. On the membrane side, the four wings are completely formed and evenly chamfered so that a membrane-next point 16 is formed, which initiates the tearing process on the membrane 8 upon actuation of the trigger and plunger. The tearing process is characterized by the pressure prevailing in the can, which is significantly increased in relation to that in the inner sleeve and a denting of the membrane 8 in the inner sleeve, so that they are in the region of the membrane-closest point 16 of the plunger 9 to the plunger cross invested, promoted.

Figur 4 zeigt einen erfindungsgemäß verwendbaren Federkorb 11 mit einem dosenseitigen Widerlager 21 für die darin gelagerte Schraubenfeder und einer tellerseitig vorgesehenen Erweiterung 27 zur Eincrimpung und Festlegung am Bodenteller 6. Die Erweiterung 27 in Form eines umlaufenden Wulstes geht in dieser Ausführungsform einher mit einer Anschneidung 30 am inneren Rand und Ausformung einer umlaufenden Kante 31, die beim Vercrimpungsprozeß mit dem Teller 6 gegen die Gummidichtung 20 gepreßt wird.Figure 4 shows an inventively usable spring cage 11 with a can-side abutment 21 for the coil spring mounted therein and a plate provided extension 27 for crimping and fixing to the base plate 6. The extension 27 in the form of a circumferential bead is in this embodiment accompanied by a truncation 30 am inner edge and shape of a peripheral edge 31 which is pressed against the rubber seal 20 during the crimping process with the plate 6.

Figur 5 schließlich zeigt einen erfindungsgemäß zum Einsatz kommenden Auslöser 12 mit einer Spitze 29, dem Widerlager 22 für die Schraubenfeder, dem Stift 14 und dem gegenüber dem in der Feder gelagerten Teil des Auslösers und dem Stift 14 vorspringenden, jedoch gegenüber dem Widerlager 22 zurückspringenden Dichtsitz 23, der mit einer gegen die Dichtung 20 wirkenden umlaufenden Kante versehen ist; in der Schnittdarstellung stellt sich dies als leichte Hinterschneidung dar.Finally, FIG. 5 shows a trigger 12 which is used according to the invention and has a tip 29, the abutment 22 for the helical spring, the Pin 14 and the opposite to the spring mounted in the part of the trigger and the pin 14 projecting, but against the abutment 22 recessed sealing seat 23 which is provided with a force acting against the seal 20 circumferential edge; in the sectional view, this represents a slight undercut.

Figur 6 zeigt eine weitere bevorzugte Ausführungsform einer erfindungsgemäß einzusetzenden Innenhülse 7 mit Anordnung an einem Ventilteller 6.FIG. 6 shows a further preferred embodiment of an inner sleeve 7 to be used according to the invention with an arrangement on a valve disk 6.

Die Anordnung der Innenhülse am Ventilteller 6 hat den Vorteil, daß die Aerosoldose keinen besonders gestalteten Bodenbereich aufweisen muß. Die Innenhülse 7 mit Stößel 9 und Deckel 8 weist tellerseitig die zweite Membran 15 auf, die die Innenhülse daran zum Teller hin hermetisch abschließt. Tellerseitig schließt sich eine zylindrische Aufnahme 18 an, die zur Festlegung am Federkorb 11 dient.The arrangement of the inner sleeve on the valve plate 6 has the advantage that the aerosol can need not have a specially designed bottom portion. The inner sleeve 7 with plunger 9 and cover 8 has the plate side, the second diaphragm 15, which hermetically seals the inner sleeve thereto to the plate. The plate side is followed by a cylindrical receptacle 18, which serves for fixing on the spring cage 11.

Bodenseitig weist die Innenhülse 7 eine darauf aufgeschraubte Membran 8 auf, deren Außenwandung mit einem Innengewinde versehen ist, das mit einem Außengewinde auf der Innenhülse 7 zusammenwirkt. Zur hermetischen Abdichtung ist der Gewindebereich durchgängig mit einer Klebstoffschicht versehen.On the bottom side, the inner sleeve 7 has a membrane 8 screwed onto it, the outer wall of which is provided with an internal thread which cooperates with an external thread on the inner sleeve 7. For hermetic sealing of the threaded area is consistently provided with an adhesive layer.

Von Varianten im Auslöserbereich abgesehen, entspricht die Konstruktion der Innenhülse gemäß Figur 6 derjenigen in Figur 2.Apart from variants in the trigger area, the construction of the inner sleeve according to FIG. 6 corresponds to that in FIG. 2.

Die Innenhülse 7 ist mit ihrer Aufnahme 18 auf das dosenseitige Ende des Federkorbs 11 aufgesteckt mit diesem fest verbunden, daß ein Ablösen bei Betätigung des Auslösers 12 ausgeschlossen ist. Die Verbindung erfolgt zweckmäßigerweise dadurch, daß die Aufnahme 18 mit dem Federkorb 11 verclincht ist, bevorzugt dergestalt, daß das freie Ende der Aufnahme 18 um einen außen umlaufenden Vorsprung 32 (siehe Figur 7) des Federkorbs 11 herumgeführt ist.The inner sleeve 7 is plugged with its receptacle 18 on the can-side end of the spring cage 11 with this fixed, that a detachment upon actuation of the trigger 12 is excluded. The connection is advantageously carried out in that the receptacle 18 is verclincht to the spring cage 11, preferably such that the free end of the receptacle 18 is guided around an outer circumferential projection 32 (see Figure 7) of the spring cage 11.

Da in der Ausführungsform gemäß Figur 6 der Federkorb 11 mit dem Auslöser 12 zugleich Teil des Ventilmechanismus ist, ist es zweckmäßig, den Auslöser 12 vom Auslösestift 14 körperlich zu trennen. Zu diesem Zweck weist der Auslöser 12 eine Aufnahme 33 für den Auslösestift 14 auf, die den Auslösestift für den Auslösevorgang aufnimmt, aus der der Auslösestift aber nach Auslösung wieder herausgezogen werden kann. Die gleiche Aufnahme nimmt anschließend einen herkömmlichen Sprühkopf auf, wie er für Aerosoldosen verwandt wird. Bevorzugt sind sogenannte weibliche Ventile mit seitlichen Schlitzen und einen Zapfen, der in die Aufnahme 33 hineinragt.Since, in the embodiment according to FIG. 6, the spring cage 11 with the trigger 12 is at the same time part of the valve mechanism, it is expedient to use the trigger 12 physically separate from the trigger pin 14. For this purpose, the trigger 12 has a receptacle 33 for the release pin 14, which receives the release pin for the release operation, from which the release pin can be pulled out again after triggering. The same shot then takes a conventional spray head, as it is used for aerosol cans. Preferred are so-called female valves with lateral slots and a pin which projects into the receptacle 33.

Um den Zugang des Doseninhaltes in die Federhülse und damit zum Ventil zu erleichtern, ist es zweckmäßig, im Federkorb selbst wenigstens eine Durchbrechung 34 vorzusehen. Nach Auslösung der Innenhülse und Austausch des Auslösestiftes 14 gegen einen Sprühkopf kann der Druckdoseninhalt durch die Durchbrechung(en) 34 in den Federkorb einströmen und durch das betätigte Ventil 4 aus der Druckdose ausgebracht werden.In order to facilitate the access of the can contents in the spring sleeve and thus the valve, it is expedient to provide at least one opening 34 in the spring cage itself. After release of the inner sleeve and replacement of the trigger pin 14 against a spray head, the pressure can contents through the opening (s) 34 flow into the spring cage and be discharged through the actuated valve 4 from the pressure cell.

Die Durchbrechungen 34 haben in der Ausführungsform gemäß Figur 6 eine weiteren Funktion im Zusammenhang mit der Befüllung der Dose. Nach Befüllen der Dose wird die gefüllte Innenhülse mit dem Ventilteller auf den Dosendom aufgebracht und mit diesem verkrimpt. Im Anschluß daran, wird durch die Ventilöffnung die Dose mit dem Treibgas gefüllt, in der Regel Propan, Butan, Dimethylether und/oder Fluorkohlenwasserstoff (134a). Das Befüllen der Dose erfolgt dabei mit einem Druck von bis zu 60 bar, um den Vorgang zeitlich möglichst kurz zu gestalten. Bei einem Druck von bis zu 60 bar besteht aber die Gefahr, daß die Membran 15 unter diesem Druck selbst oder durch Einwirkung des druckbetriebenen Auslösers 12 birst. Um dieser Gefahr zu begegnen, ist eine möglichst rasche Entspannung der Gase nach Eintritt in die Dose erforderlich. Eine solche Entspannung wird durch die Anordnung einer oder mehrere größerer Durchtrittsöffnungen 34 in den Federkorb 11 erreicht. Dabei ist es zweckmäßig, diese Durchtrittsöffnungen 34 mit einem Gesamtquerschnitt zu versehen, der das drei- bis sechsfache des freien Querschnitts der Befüllungsnadel, durch den das Treibgas in die Druckdose einströmt, entspricht.In the embodiment according to FIG. 6, the apertures 34 have a further function in connection with the filling of the can. After filling the can, the filled inner sleeve is applied with the valve plate on the can end and crimped with this. Following this, the can is filled with the propellant gas through the valve opening, typically propane, butane, dimethyl ether and / or fluorohydrocarbon (134a). The filling of the can takes place with a pressure of up to 60 bar in order to make the process as short as possible in terms of time. At a pressure of up to 60 bar but there is a risk that the membrane 15 bursts under this pressure itself or by the action of the pressure-actuated trigger 12. To counteract this danger, a relaxation of the gases as quickly as possible after entry into the can is required. Such relaxation is achieved by the arrangement of one or more larger openings 34 in the spring basket 11. It is expedient to provide these passage openings 34 with an overall cross section, which corresponds to three to six times the free cross section of the filling needle, through which the propellant flows into the pressure cell.

Die Durchbrechungen 34 im Ventilkorb 11 sind am tellerseitigen Ende des Ventilkorbes vorgesehen, in möglichst großer Nähe zum Ventil selbst. Die ventilseitige Abdichtung erfolgt durch einen an seinem tellerseitigen Ende vorgesehenen Dichtsitz 23 in Form eines umlaufenden Vorsprungs, der gegen die Dichtung 20 zwischen Federkorb 11 und Teller 6 im Bereich der zentralen Ausformung 19 wirkt. Im Vergleich zur Ausführungsform gemäß Figur 2 ist es zweckmäßig, den Auslöser 12 in einem größeren Abstand zur Membran 15 vorzusehen, um beim Befüllen der Druckdose mit Treibgas eine gewisse Auslenkung des Auslösers 12 ohne Gefahr für die zweite Membran 15 aufzufangen. Es versteht sich, daß der Abstand des Auslösers 12 zur Membran 15 sich in der Länge des Auslösestiftes 14 niederschlagen muß, dergestalt, daß der Auslösestift eine Gesamtlänge hat, die dem Abstand des Auslösers 12 zur Membran und weiter um den Weg des Stößels 9, den dieser zum Aufreißen der Membran 8 zurücklegen muß, entspricht. Entsprechend lang ist der Federweg ausgelegt.The openings 34 in the valve basket 11 are provided at the plate-side end of the valve basket, in as close as possible to the valve itself. The valve-side sealing is effected by a provided at its plate-side end Sealing seat 23 in the form of a circumferential projection which acts against the seal 20 between the spring cage 11 and plate 6 in the region of the central formation 19. Compared to the embodiment according to FIG. 2, it is expedient to provide the trigger 12 at a greater distance from the diaphragm 15 in order to absorb a certain deflection of the trigger 12 without risk for the second diaphragm 15 when filling the pressure cell with propellant gas. It is understood that the distance of the trigger 12 to the membrane 15 must be reflected in the length of the trigger pin 14, such that the trigger pin has an overall length, the distance of the trigger 12 to the diaphragm and further to the path of the plunger 9, the this must cover for tearing the membrane 8 corresponds. The spring travel is correspondingly long.

Figur 7 zeigt eine Darstellung des Federkorbs mit Auslöser 12 gemäß Figur 6 im Detail. Der Ventilteller 6 weist in seinem zentralen Bereich eine Ausformung 19 mit einer Durchbrechung auf, in die dosenseitig eine Dichtung 20 in Form einer durchbrochenen Kreisscheibe, vorzugsweise aus einem gummiartigen Material, eingesetzt ist. Im Bereich der Ausformung 19 ist der Federkorb 11 über seine Erweiterung 27 festgelegt. Die kopfseitig angeordnete umlaufende Kante 31 wirkt gegen die Gummidichtung 20 und dichtet den Doseninhalt gegen die zentrale Öffnung im Teller und in der Dichtung 20 ab. Durch den Verkrimpungsprozeß bei der Einformung des Federkorbs 11 in die zentrale Einformung 19 des Ventiltellers 6 sind die einzelnen Komponenten form- und kraftschlüssig sowie dichtend miteinander verbunden. Das freie Ende der Aufnahme 18 ist um einen außen umlaufenden Vorsprung 32 des Federkorbs 11 herumgeführt.FIG. 7 shows an illustration of the spring cage with trigger 12 according to FIG. 6 in detail. The valve disk 6 has in its central region a molding 19 with an opening, in the can side, a seal 20 in the form of a perforated disc, preferably made of a rubber-like material is used. In the area of the formation 19, the spring cage 11 is fixed via its extension 27. The head edge arranged peripheral edge 31 acts against the rubber seal 20 and seals the can contents against the central opening in the plate and in the seal 20 from. Due to the Verkrimpungsprozeß in the formation of the spring cage 11 in the central indentation 19 of the valve disc 6, the individual components are positively and non-positively and sealingly connected. The free end of the receptacle 18 is guided around an outer circumferential projection 32 of the spring basket 11.

Der Federkorb 11 weist unmittelbar unterhalb der Festlegung am Ventilteller 6 Durchbrechungen 34 auf, die es dem Doseninhalt erlauben, in den Federkorb einzudringen. Im Inneren des Fedekorbs 11 befindet sich die Schraubenfeder 13, die sich auf einen inneren Vorsprung 21 des Federkorbs 11 und gegen einen äußeren Vorsprung 22 des Auslösers 12 abstützt. In entspanntem Zustand preßt die Schraubenfeder 13 den Auslöser 12 mit seiner umlaufenden Kante 23 gegen das Dichtgummi 20, so daß die Druckdose in diesem Zustand verschlossen ist.The spring cage 11 has immediately below the fixing on the valve plate 6 openings 34, which allow the can contents to penetrate into the spring basket. Inside the spring basket 11 is the coil spring 13, which is supported on an inner projection 21 of the spring cage 11 and against an outer projection 22 of the trigger 12. In a relaxed state, the coil spring 13 presses the trigger 12 with its peripheral edge 23 against the sealing rubber 20, so that the pressure cell is closed in this state.

Zur Auslösung der Innenhülse wird in die Ausnehmung 33 des Auslösers 12 der Auslösestift 14 eingesetzt und kräftig nach unten gedrückt, so daß der Auslöser 12 mit seiner Spitze 29 die Membran 15 durchstößt und den darunter befindlichen Stößel 9 gegen die Membran 8 bewegt. Nach erfolgter Auslösung kehrt der Auslöser 12 in seine Ruheposition zurück, so daß die Dose nach außen hin verschlossen bleibt. Während des Auslösevorganges erfolgt die Abdichtung durch das Zusammenwirken der Flanken des Auslösestiftes mit der Gummidichtung 20.To release the inner sleeve of the release pin 14 is inserted into the recess 33 of the trigger 12 and pressed down vigorously, so that the trigger 12 pierces the membrane 15 with its tip 29 and moves the plunger 9 located underneath against the membrane 8. After tripping the trigger 12 returns to its rest position, so that the can remains closed to the outside. During the triggering process, the seal is effected by the interaction of the flanks of the trigger pin with the rubber seal 20th

Zum Ausbringen des Doseninhaltes wird in die Ausnehmung 33 ein herkömmliches Ventil eingesetzt, das durch Eindrücken betätigt wird. In diesem Fall bewegt sich der Auslöser um einen definierten Weg in die Dose hinein, so daß der Doseninhalt durch die Durchbrechungen 34 ungehindert in den Federkorb hinein und aus dem Ventil hinausgelangen kann.For discharging the can contents, a conventional valve is inserted into the recess 33, which is actuated by pressing. In this case, the trigger moves by a defined path into the can so that the can contents can pass unhindered through the apertures 34 into and out of the spring cage.

Die Durchbrechungen 34 haben des weiteren den Zweck, ein Befüllen der bereits verschlossenen Dose mit Treibgas durch die zentrale Öffnung in der Dichtung 20 hindurch dem Treibgas einen schnellen Weg in den Doseninhalt hinein zu ermöglichen. Hierzu wird mit der Treibgaszuführung durch die Dichtung 20 hindurch das Treibgas mit dem vorgesehenen Druck in die Federhülse eingepreßt, so daß sich der Auslöser 12 um einen definierten Weg in Richtung auf die Membran 15 bewegt, ohne diese jedoch zu erreichen, so daß nach Freiwerden der Durchbrechungen 34 das Gas unter Entspannung seitlich in die Dose entweichen kann.The openings 34 also have the purpose of allowing the already sealed can with propellant gas to pass through the central opening in the gasket 20 to allow the propellant gas to travel quickly into the can contents. For this purpose, with the propellant gas supply through the gasket 20 through the propellant gas is pressed with the intended pressure in the spring sleeve, so that the trigger 12 moves by a defined path in the direction of the membrane 15, but without reaching them, so that after the release of the Openings 34, the gas can escape under relaxation laterally into the can.

Druckdosen gemäß der Ausführungsform nach Figur 6 werden beim Gebrauch "kopfunter" eingesetzt, das heißt das Ventil weist nach unten. Druckdosen gemäß der Figuren 2 und 3 können, bei Einbringung eines Steigrohrs, aufrecht benutzt werden, oder, bei Fehlen eines Steigrohrs, "kopfunter". Die Verwendung mit Spritzpistolen ist möglich und vorgesehen.Pressure cans according to the embodiment of Figure 6 are used in use "head down", that is, the valve points down. Pressure cans according to FIGS. 2 and 3 can be used upright when a riser pipe is introduced, or, in the absence of a riser pipe, upside down. The use with spray guns is possible and intended.

Im Zusammenhang sei angemerkt, daß die in der Anmeldung verwandten Begriffe "dosenseitig" eine doseneinwärts gerichtete Anordnung bezeichnet, während "tellerseitig" eine Anordnung zum jeweiligen Teller (im Ventil- oder Bodenbereich) bezeichnet.In connection, it should be noted that the term "can side" in the application refers to a can-inward arrangement, while "dish-side" designates an arrangement to the respective plate (in the valve or bottom region).

Claims (25)

  1. Pressurized can comprising a body (2), a dome (3) accommodating a valve (4), a concavely shaped bottom (5), an inner casing (7) attached to a cup (6), a push rod (9) arranged in the inner casing (7), said push rod (9) being actuated through the cup (6) and intended to force open the inner casing (7), with said inner casing (7) being joined to the cup (6) via a spring cage (11), said spring cage (11) containing a spring-loaded trigger (12) which acts on the push rod (9) which, in turn, acts on a cover (8) arranged at the can-side end of the inner casing (7), characterized in that the cover (8) is a membrane which seals the inner casing (7) at its can-side end hermetically against the contents of the pressurized can (1) and which is torn open by the push rod (9) when the trigger (12) is actuated, the pressure inside said inner casing (7) being lower than the pressure outside said inner casing (7) and said membrane (8) bulging into said inner casing (7).
  2. Pressurized can according to claim 1, characterized in that the membrane (8) is glued to the inner casing (7).
  3. Pressurized can according to claim 2, characterized in that the membrane (8) is additionally screwed on to the inner casing (7).
  4. Pressurized can according to claims 2 or 3, characterized in that the inner casing (7) is provided, at its extreme end, with a receptacle (18) for securing it to the spring case (11).
  5. Pressurized can according to any of claims 1 to 4, characterized in that a second membrane (15) is arranged in the transition area from the inner casing (7) to the receptacle (18).
  6. Pressurized can according to claim 4 or 5, characterized in that the receptacle (18) and a spring case (11) are clinched together.
  7. Pressurized can according to claim 6, characterized in that the free end of the receptacle (18) is placed over an outer circumferential projection (32) of the spring cage (11).
  8. Pressurized can according to any of the above claims, characterized in that the inner casing (7) is arranged on a cup (6) located in the bottom (5) of the pressurized can (1).
  9. Pressurized can according to any of claims 1 to 8, characterized in that the cup (6) with the inner casing (7) is arranged in the dome (2) of the pressurized can (1).
  10. Pressurized can according to claim 9, characterized in that the trigger (12) is provided with a receptacle (33) for a trigger pin (14) or a spray head.
  11. Pressurized can according to claim 1, characterized in that the inner casing (7) is secured to the cup (6) arranged in the bottom (5) of the can (1) and is provided with an attached membrane (8).
  12. Pressurized can according to claim 11, characterized in that the inner casing (7) and the cup (6) are joined together by crimping.
  13. Pressurized can according to claims 1 to 12, characterized in that the spring cage (11) is fixed in a central pocket (19) of the cup (6).
  14. Pressurized can according to any of the above claims, characterized in that the push rod (9) is provided with several wings (17) along a central axis.
  15. Pressurized can according to claim 14, characterized in that the push rod (9) has the shape of a sloped and sharp-edged hollow cylinder (16) at its can-side end.
  16. Pressurized can according to any of claims 14 and 15, characterized in that the wings (17) are provided with cut-outs and/or recesses.
  17. Pressurized can according to any of the above claims, characterized in that a seal (20) is arranged between the spring cage (11) and the cup (6) in the area of the central pocket (19).
  18. Pressurized can according to any of the above claims, characterized in that the spring cage (11) is provided, at its valve-side end, with an internal projection (21) acting as an abutment for a spring element (13).
  19. Pressurized can according to claim 13, characterized in that the trigger (12) is provided, at its cup-side end, with a peripheral projection (22) acting as an abutment for the spring element (13).
  20. Pressurized can according to any of the above claims, characterized in that the trigger (12) is provided, at its cup-side end, with a sealing seat (23) having the form of a circumferential projection.
  21. Pressurized can according to any of the above claims, characterized in that the inner casing (7) and the membrane (8) are made from aluminium.
  22. Pressurized can according to any of the above claims, characterized in that the spring cage (11) is provided with at least one cutout (34).
  23. Pressurized can according to claim 2 or 3, characterized in that the membrane (8) is glued to the inner casing using a two-component glue.
  24. Pressurized can according to claim 23, characterized in that the glue is a cross-linking epoxy/amine system or a polyisocyanate/hardener system.
  25. Use of the pressurized can according to any of claims 1 to 24 for liquid two-component systems, in particular two-component sealing foams, two-component glues or two-component coatings.
EP03813585A 2002-12-19 2003-12-19 Pressurised dispenser for mixing and producing two-component materials Expired - Lifetime EP1578676B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10260117 2002-12-19
DE10260117A DE10260117A1 (en) 2002-12-19 2002-12-19 Pressure can for mixing and dispensing two-component materials
PCT/EP2003/014662 WO2004056660A2 (en) 2002-12-19 2003-12-19 Pressurised dispenser for mixing and producing two-component materials

Publications (3)

Publication Number Publication Date
EP1578676A2 EP1578676A2 (en) 2005-09-28
EP1578676B1 true EP1578676B1 (en) 2007-05-02
EP1578676B2 EP1578676B2 (en) 2009-10-21

Family

ID=32404089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03813585A Expired - Lifetime EP1578676B2 (en) 2002-12-19 2003-12-19 Pressurised dispenser for mixing and producing two-component materials

Country Status (10)

Country Link
US (1) US8403177B2 (en)
EP (1) EP1578676B2 (en)
JP (1) JP4412605B2 (en)
AT (1) ATE361247T1 (en)
AU (1) AU2003300539A1 (en)
CA (1) CA2508873C (en)
DE (2) DE10260117A1 (en)
DK (1) DK1578676T4 (en)
ES (1) ES2286510T5 (en)
WO (1) WO2004056660A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10144133A1 (en) * 2001-09-07 2003-03-27 Peter Kwasny Gmbh Two-component paint-spray can, especially e.g. for repairing cars, contains a curable epoxy resin stock component, solvent and propellant gas, with a hardener in a separate, externally-activated tube inside the can
DE102006056280A1 (en) 2006-04-25 2007-10-31 Fazekas, Gàbor Aerosol for two component aerosol systems e.g. polyurethane foam system, has inner sleeve which has one flexible zone for pressure equalization between can interior and interior of sleeve
DE102007006097A1 (en) 2007-02-02 2008-08-07 Kwasny Gmbh Two-component pressure box with sealed release mechanism
CN104609045A (en) * 2015-01-26 2015-05-13 中山市美捷时包装制品有限公司 Mixed aerosol spraying device
CN104609044A (en) * 2015-01-26 2015-05-13 中山市美捷时包装制品有限公司 Piercing type valve
CN104959279B (en) * 2015-07-02 2017-06-06 华东光电集成器件研究所 A kind of stirring-type air pressure glue dispensing valve
EP3455264A4 (en) 2016-05-13 2020-05-20 MSI Coatings Inc. System and method for using a voc free low radiant flux led uv curable composition
GB2558522A (en) * 2016-06-20 2018-07-18 Kind Consumer Ltd A pressurised Container
US11111071B2 (en) 2017-07-31 2021-09-07 V1 Enterprises, LLC Mixing apparatus, method of making the mixing apparatus and using the mixing apparatus
CN107310857A (en) * 2017-08-05 2017-11-03 中山市美捷时包装制品有限公司 A kind of two-component packaging aerosol valves tank arrangement
US11148872B2 (en) 2017-11-27 2021-10-19 Sika Technology Ag Two-component pressurized can
US11338320B1 (en) * 2018-02-03 2022-05-24 MSI Coatings Inc. Composition for aerosol cans, method of making and using the same
MY193870A (en) * 2018-05-31 2022-10-29 Boon Leong Saw A container for aerosol system
CN110104306A (en) * 2019-04-29 2019-08-09 深圳市佳鑫一帆科技有限公司 A kind of storage device of the joint filling glue with anti-leak function
MY202306A (en) * 2019-05-31 2024-04-23 Orientus Ind Sdn Bhd Spray can valve and cushioning pad
USD913067S1 (en) 2019-07-01 2021-03-16 V1 Enterprises, LLC Mixing apparatus
DE102021108237A1 (en) 2021-03-31 2022-10-06 Peter Kwasny Gmbh 2-component paint system

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786769A (en) * 1955-03-08 1957-03-26 Greenspan Irving Nursing bottle
US3240391A (en) * 1962-07-17 1966-03-15 Merlin E Garton Spray container
US3425589A (en) * 1967-05-31 1969-02-04 Nat Can Corp Composite container unit
DE3237263A1 (en) * 1982-10-08 1984-04-12 Deutsche Präzisions-Ventil GmbH, 6234 Hattersheim VALVE SYSTEM FOR COMPRESSED GAS PACKING WITH TWO-COMPONENT PRODUCT
DE3610345C2 (en) * 1986-03-27 1998-07-09 Rathor Ag Device for producing polyurethane assembly foam
CA1249886A (en) * 1986-05-02 1989-02-07 Claude J. Champagne Method of duplex data transmission using a send-and- wait protocol
JPH0626686B2 (en) 1987-03-24 1994-04-13 大阪エヤゾ−ル工業株式会社 Content mixing container and content mixing and discharging device using the container
DE8707230U1 (en) * 1987-05-20 1988-09-15 Wella Ag, 6100 Darmstadt Multi-chamber container for pourable substances
IL119370A0 (en) * 1996-10-07 1997-01-10 Sharon Igal Container for dispensing formulations
IT1292677B1 (en) 1997-02-28 1999-02-11 Bormioli Metalplast Spa PACKAGING TO KEEP THE PRODUCTS SEPARATE BEFORE USE.
JP4290297B2 (en) 1999-12-17 2009-07-01 エア・ウォーター・ゾル株式会社 Mixed aerosol container
US6305576B1 (en) 2000-01-19 2001-10-23 Nalge Nunc International Corporation Cartridge for aseptically holding and dispensing a fluid material, and a container and method for aseptically holding and mixing the fluid material
US6533113B2 (en) * 2000-12-01 2003-03-18 Brett Moscovitz System, devices and methods for storing and mixing substances
DE10114624B4 (en) * 2001-03-23 2006-05-04 Peter Kwasny Gmbh Pressure cell and its use for 2-component systems
DE102004024777A1 (en) * 2004-05-17 2005-12-15 Fazekas, Gàbor Pressure cell with inner sleeve
US7270233B2 (en) * 2005-07-21 2007-09-18 Kindt John H Package for separate compounds to be mixed

Also Published As

Publication number Publication date
US8403177B2 (en) 2013-03-26
DK1578676T4 (en) 2010-03-01
DK1578676T3 (en) 2007-09-10
CA2508873A1 (en) 2004-07-08
EP1578676A2 (en) 2005-09-28
DE10260117A1 (en) 2004-07-01
JP4412605B2 (en) 2010-02-10
CA2508873C (en) 2011-03-29
JP2006510552A (en) 2006-03-30
WO2004056660A3 (en) 2004-09-10
US20060201969A1 (en) 2006-09-14
ES2286510T3 (en) 2007-12-01
ATE361247T1 (en) 2007-05-15
AU2003300539A8 (en) 2004-07-14
EP1578676B2 (en) 2009-10-21
DE50307203D1 (en) 2007-06-14
WO2004056660A2 (en) 2004-07-08
AU2003300539A1 (en) 2004-07-14
ES2286510T5 (en) 2010-02-15

Similar Documents

Publication Publication Date Title
EP1373094B1 (en) Pressure pack aerosol can for mixing and discharging two-constituent materials
EP1578676B1 (en) Pressurised dispenser for mixing and producing two-component materials
EP3402740A1 (en) Cartridge for a beverage or food substrate
EP1344500A1 (en) Multiple component mixing capsule, particularly for dental purpose
EP0152761B1 (en) Device for making and vaporizing a mixture composed of at least two components, e.g. fluids, and a propellant
WO2008061766A1 (en) Closing cap comprising a sealed dispensing chamber for drink additives
EP2013115B1 (en) Aerosol can with inner sleeve
EP0625468B1 (en) Two component aerosol can
DE3405064A1 (en) Device for producing and spraying a mixture consisting of at least two components, e.g. liquids, and a propellant gas
WO2020224897A1 (en) Cartridge having a head piece
EP2114795B1 (en) Two-component barometric cell having a sealed triggering mechanism
WO2011073251A1 (en) Cartridge having a plug
EP3717378B1 (en) Two-component pressurized can
EP3652083B1 (en) Container closure with a standard capsule
EP3741710B1 (en) Pressurised can with inner sleeve
EP2393730B1 (en) Delivery device for the proportioned delivery of a formulation of liquid gas and a procedure for the production of the delivery device
DE2839284A1 (en) Single hand operated tooth-paste tube closure - has sliding cap with opening closed by central plug opened by internal pressure
WO2005100204A1 (en) Pressurised dispenser for discharging multi-constituent formulations
EP0200164A1 (en) Device for mixing and distributing a mixture composed of two elements, e.g. liquids, and a propellant
DE3208969A1 (en) Container for two-component materials
WO2017089584A1 (en) Receptacle for storing a substance

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050716

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50307203

Country of ref document: DE

Date of ref document: 20070614

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BUECHEL, KAMINSKI & PARTNER PATENTANWAELTE ESTABLI

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20070809

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2286510

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070802

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071002

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: MOTIP DUPLI GMBH

Effective date: 20080204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070803

NLR1 Nl: opposition has been filed with the epo

Opponent name: MOTIP DUPLI GMBH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071219

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20071103

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070502

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: PETER KWASNY GMBH

Free format text: PETER KWASNY GMBH#HEILBRONNER STRASSE 96#74831 GUNDELSHEIM (DE) -TRANSFER TO- PETER KWASNY GMBH#HEILBRONNER STRASSE 96#74831 GUNDELSHEIM (DE)

27A Patent maintained in amended form

Effective date: 20091021

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

Free format text: AUFRECHTERHALTUNG DES PATENTES IN GEAENDERTER FORM

NLR2 Nl: decision of opposition

Effective date: 20091021

NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
REG Reference to a national code

Ref country code: SE

Ref legal event code: RPEO

REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Date of ref document: 20091130

Kind code of ref document: T5

REG Reference to a national code

Ref country code: DK

Ref legal event code: T4

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101219

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20221222

Year of fee payment: 20

Ref country code: NL

Payment date: 20221222

Year of fee payment: 20

Ref country code: GB

Payment date: 20221222

Year of fee payment: 20

Ref country code: FR

Payment date: 20221222

Year of fee payment: 20

Ref country code: DK

Payment date: 20221223

Year of fee payment: 20

Ref country code: DE

Payment date: 20221213

Year of fee payment: 20

Ref country code: CZ

Payment date: 20221212

Year of fee payment: 20

Ref country code: AT

Payment date: 20221222

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20221221

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20230224

Year of fee payment: 20

Ref country code: CH

Payment date: 20230103

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20221228

Year of fee payment: 20

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230428

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50307203

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20231218

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20231229

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Expiry date: 20231219

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20231218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20231218

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20231219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20231220

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20231218

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20231220

Ref country code: CZ

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20231219

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 361247

Country of ref document: AT

Kind code of ref document: T

Effective date: 20231219