EP0320510B1 - Vorrichtung zur lagerung und kontrollierten abgabe von unter druck stehenden produkten und verfahren zu ihrer herstellung - Google Patents

Vorrichtung zur lagerung und kontrollierten abgabe von unter druck stehenden produkten und verfahren zu ihrer herstellung Download PDF

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Publication number
EP0320510B1
EP0320510B1 EP88905346A EP88905346A EP0320510B1 EP 0320510 B1 EP0320510 B1 EP 0320510B1 EP 88905346 A EP88905346 A EP 88905346A EP 88905346 A EP88905346 A EP 88905346A EP 0320510 B1 EP0320510 B1 EP 0320510B1
Authority
EP
European Patent Office
Prior art keywords
valve
container
inner container
valve body
welding
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
EP88905346A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0320510A1 (de
Inventor
Winfried Jean Werding
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.)
EP Systems SA
Original Assignee
Individual
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
Priority claimed from CH242987A external-priority patent/CH674760A5/de
Priority claimed from CH4180/87A external-priority patent/CH676585A5/de
Application filed by Individual filed Critical Individual
Priority to AT88905346T priority Critical patent/ATE98191T1/de
Publication of EP0320510A1 publication Critical patent/EP0320510A1/de
Application granted granted Critical
Publication of EP0320510B1 publication Critical patent/EP0320510B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers 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
    • B65D83/44—Valves specially adapted therefor; Regulating devices
    • B65D83/48—Lift valves, e.g. operated by push action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers 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
    • B65D83/38—Details of the container body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers 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
    • B65D83/60—Contents and propellant separated
    • B65D83/62—Contents and propellant separated by membrane, bag, or the like

Definitions

  • the present invention relates on the one hand to a device for the storage and controlled delivery of pressurized products according to the preamble of claim 1.
  • Such a device allows, compared to the conventional spray cans, either a reduced amount of liquid gas or compressed gases to be used as the driving force.
  • the invention relates to a method for producing such a device according to the preamble of claim 10.
  • FRIGEN fully halogenated hydrocarbons
  • FREON The ban on fully halogenated hydrocarbons, known under the names FRIGEN or FREON, has led to the massive use of hydrocarbons such as propane and butane or dimethyl ether and their mixtures.
  • FRIGEN and FREON are dangerous for the ozone layer surrounding the earth and butane and propane as well as dimethyl ether because of their danger of explosion for the bottling industry, but also for the consumer, since deaths are caused by explosions.
  • the non-flammable, only partially halogenated FREON 22 (chemical formula CHClF2) is known as a blowing agent. It can also be used in the USA and the Scandinavian countries, where FREON and FRIGEN are prohibited, because the FREON 22 still contains a hydrogen atom and is therefore not as stable as the fully halogenated hydrocarbons.
  • the vapor pressure of the non-flammable FREON 22 is very high and is around 9 bar at 20 ° C, it must either be mixed with a gas with a lower vapor pressure, such as dimethyl ether or butane, but which is combustible, or used in a reduced amount , Depending on the container quality, this means between 18 and 50 percent by weight.
  • a piston In so-called “male” valves, a piston is provided with side holes which, when the valve is closed, lie within the wall thickness of the rubber seal so that no product can escape. However, since the central hole of the seal is punched out, it has vertical grooves parallel to the axis, which are more or less deep depending on the quality or wear of the punching tool, through which product can continue to flow after the valve has been closed, until it does so the rubber closes by squeezing into the side holes of the piston.
  • the valve closure is achieved by penetrating the ring rib of a piston into a rubber sealing washer. The rear sight of most ring ribs is 0.4 to 0.5 mm wide, which, depending on the hardness of the rubber, leads to a slow penetration of the piston into the seal, which also leads to a reflow after closing.
  • a spray can filled with liquefied petroleum gas the pressure is built up again by continuous gasification of the liquid phase whenever the pressure drops according to physical law by emptying the can, so that there is practically a constant pressure in the can.
  • the amount of gas is just sufficient to keep the pressure constant and to empty the entire contents of the container. If you spray with a valve opening for too long, the gasification leads to a cooling of the can, which slows down the gasification, so that not only the pressure drops, but also more liquid gas is discharged than intended and therefore ultimately missing for the complete emptying of the can.
  • gas is lost, which is then missing again.
  • aluminum cans are made by deep-drawing aluminum disks, with grooves running parallel to the can axis in the outer wall of the can, which can be between 0.02 and 0.08 mm deep depending on the can diameter, but are so narrow that the outer rubber seal cannot penetrate it and therefore cannot seal it.
  • the filling of the compressed gas is relatively complicated and requires high precision, which is expensive, since the bottom of the can is provided with an opening which can be closed with a rubber stopper, next to which if it is not yet fully pressed into the opening , the compressed gas is introduced into the can, after which the rubber plug is pushed completely into the opening, which it then hermetically seals.
  • this gassing process requires a lot of time, so that mass production is expensive.
  • Metal cans require a multiple of the energy required to produce plastic and cans from this material, both for extracting the metal as such and for producing the cans. Depending on the type of metal, corrosion problems can also occur.
  • valves on the market which, thanks to a ball, allow the product to be sprayed even when the can is turned upside down is held.
  • the present invention solves the problems described above and, on the one hand, relates to a device for the storage and controlled delivery of pressurized products, as defined in claim 1.
  • Advantageous embodiments of this device are defined in the dependent claims.
  • the problems described above are solved by a method for producing such a device.
  • the container 1 shows a device according to the invention in its entirety.
  • the container 1, here preferably made of PET (polyethylene terephthalate), has a hemispherical base 2 which is provided with the base cap 3 for standing. It contains the inner container 4 in which the product 5 is stored.
  • the inner container 4 is welded onto the valve body 6, which is attached to the plastic valve plate 7 and contains the piston 8, which is pressed strongly against the rubber seal 10 by means of the spring 9 and partially penetrates into it.
  • the plastic valve disk 7 is provided with the bore 11 which, when the container 1 is under pressure, is closed by means of the rubber seal 12, which is held with the flange 13 of the valve body 6 when the container 1 is not yet under pressure.
  • the piston 8 carries a spray head 14.
  • the plastic valve disk 7 is provided with an annular membrane 17 and a double annular rib 18, the annular membrane 17 the can neck 19 and the annular rib 18 the annular groove 20 close.
  • the ring membrane 17 and the ring rib 18 are drawn into their seats in a sealing manner by means of a snap closure 21.
  • a closure sleeve 22 prevents the snap closure 21 from opening and, thanks to its welding 23 to the container 1, secures its hermetic closure.
  • FIG. 2 shows the above details in enlarged form. As explained in more detail with reference to FIGS.
  • the valve body 6 is provided with side ribs 15 which, after the inner container 4 has been welded on, form beads 16 by means of a welding surface 24.
  • the underside of the closure sleeve 22 has an annular groove 25, which prevents the bore 11 from being covered, so that this bore 11 is not visible from the outside, but can nevertheless be used to pressurize the container 1 from the outside, the seal 12 then being used as Check valve works.
  • the device according to the invention has a Valve cap 26 closed. The device is assembled and filled as follows: As shown in FIG. 11, the valve unit A carries a folded inner container 4, which is kept folded at the valve height with a paper ring 79 and at the opposite end with a paper ring 80.
  • the paper thickness of the rings 79 and 80 is selected such that they tear inside the container 1 when the inner container 4 is filled, thus ensuring that the inner container 4 unfolds.
  • the valve unit A with the folded inner container 4 which behaves practically like a "normal" riser pipe and can be sorted by any commercially available filling machine, is inserted mechanically into the container 1 until one part of the snap closure 21 into the corresponding part of the can neck 19 engages, after which, also mechanically, the sealing sleeve 22 is welded onto the can neck 19 at height 23.
  • the inner container 4 Before attaching the spray head 14 or another dispensing element, the inner container 4 is filled with the product 5 via the valve body 6 by pushing the piston 8 away from the seal 10. After placing a special filling head on the closure sleeve 22, compressed air is introduced into the container 1 via the bore 11 of the valve plate 7, which then pressurizes the product located in the inner container 4. After putting on the Spray head 14 or, depending on the nature of the product, another dispensing element, the device according to the invention is ready for use. Ultimately, it is closed with the valve cap 26.
  • valve unit A If the valve unit A is used with compressed air as the driving force, it needs large cross sections and a plurality of flow channels 32 and 33, as shown in FIG. 4, in order to ensure the greatest possible thrust, especially after the pressure has been reduced.
  • the device according to the invention is as shown in FIGS 5 and 6.
  • the valve unit A according to the invention consists of a valve body 34 which is provided with a riser pipe holder 35, a piston 36 with pin 37, a compression spring 38, an inner seal 39, a valve plate 40 with a container seal 41 and a piston tube 42.
  • the valve plate 40 is provided with a bore 43 which, when a container closed with the valve unit A is under pressure, is sealed by means of a sealing washer 44 which is held by a flange 45.
  • the bottom of the valve body 34 is provided with ribs 46 on which a spring 38 rests.
  • the piston 36 carries the spring 38. It has guide ribs 47 and is provided with ribs and grooves, which are shown enlarged in FIG. 3.
  • a rear sight 48 of the valve body 34 is provided with vertical grooves 49, which allow gassing of a container closed with the valve unit A between the valve plate 40 and the seal 39, without opening the valve.
  • the base diameter of the pin 37 is slightly smaller than the inside diameter of the piston tube 42, so that a gap 50 is created.
  • liquid gas remains liquid under a certain pressure acting on it and only gasifies when this pressure, for example when emptying a container, becomes lower. It is also known that small flow cross sections can accelerate a product under pressure and thereby reduce its pressure, which means that depending on Acceleration of the product its pressure can drop below the pressure that keeps the gas liquid, so that it gasifies thanks to this acceleration.
  • the liquid gas is introduced into the aerosol container via the valve, the valve being opened mechanically, unless a special gassing device is used which, as described, introduces the liquid gas between valve plate 40 and seal 39 via grooves 49 into the can . Since the valve described above must have a very small flow cross section for its aforementioned function, the gassing takes a lot of time, which is undesirable for mass production. Thanks to the bore 43 and the sealing washer 44, the gassing can take place quickly.
  • a flexible inner container which can either be liquid gas in a rigid container or compressed gases such as air or nitrogen, are compressed so that the product in the flexible container is expelled when the valve is opened.
  • FIGS. 7 to 10 One such is illustrated in FIGS. 7 to 10, where a flexible inner container 78 is placed directly on a valve unit A.
  • the valve body 70 is to be provided with side wings 71 and 72. After inserting the valve body 70 between two plastic foils, these are clamped between two welding jaws 73 and 74, each of which has a semicircular groove 75, the diameter of which is smaller than the outside diameter of the valve body 70. Under the heat of the welding jaws 73 and 74, the valve body 70 deforms in this way that the side wings 71 and 72 flow between the foils and avoid the above-described longitudinal channels there. This creates the beads 76 and 77, which additionally improve the sealing of the inner container 78.
  • This solution is extremely advantageous in that, on the one hand, it avoids the work step of plugging the inner container onto a valve unit A and, on the other hand, it ensures a longer inner container length, so that the inner container receives a larger filling volume.
  • FIG. 11 shows such an inner container 78, which is folded accordion-shaped and welded onto the valve unit A, the inner container 78 being provided at the valve height with the paper ring 79 and at the opposite end with the paper ring 80, which prevent the inner container 79 from unfolding, so that the inner container 78 so remains as rigid as a normal riser pipe and, although oversized, can be inserted into standard cans.
  • the paper ring thickness is selected so that it can withstand transport and sorting, but tear when the inner container 78 is filled, if it is accommodated inside the can, so that the inner container 78 can fully develop.
  • This solution also has the advantage that the folds form folds, which lead to fine, vertical grooves that remain even after unfolding and prevent the two welded foils from collapsing at valve height after a certain amount of product has been expelled, so that no more product can be expelled.
  • the can neck 81 has two ring grooves 83 and 84, not on the rear sight, but at an angle to the outside thereof, so that several edges 85 are created, which penetrate into the rubber seal 86, so that they enter the Ring grooves 83 and 84 are constrained and thus ensure a secure seal, even in the absence of absolute precision.
  • FIG. 13 shows the can neck of a plastic can 87, which has step-shaped ring steps 88 and 89, so that edges 90 are formed which penetrate into the rubber seal 92 when the valve disk 91 is rolled up and thus ensure a secure, leak-free closure of the can 87.
  • valve unit A which is used especially for dispensing viscous products.
  • a valve body 93 presses a seal 94 made of elastic material, which carries an ogive-shaped wart 95 directed downward, into a valve plate 96.
  • the wart 95 is provided with a cut 97, which is closed by means of the pressure represented by the arrows 98.
  • An output head 99 is provided with a tube piece 100, which is inserted into the wart 95 and carries a diffuser 102, also made of elastic material. If the delivery head 99 is moved downward, the cut 97 of the wart 95 and the cut 103 of the diffuser 102 open, as shown in broken lines, so that product can be ejected.
  • Dispensing head 99 houses a regulating disk 105, as described in the German Democratic Republic's Patent No.

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  • 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)
EP88905346A 1987-06-26 1988-06-27 Vorrichtung zur lagerung und kontrollierten abgabe von unter druck stehenden produkten und verfahren zu ihrer herstellung Expired - Lifetime EP0320510B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88905346T ATE98191T1 (de) 1987-06-26 1988-06-27 Vorrichtung zur lagerung und kontrollierten abgabe von unter druck stehenden produkten und verfahren zu ihrer herstellung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH242987A CH674760A5 (en) 1987-06-26 1987-06-26 Device for storing and dispensing pressurised prods.
CH2429/87 1987-06-26
CH4180/87 1987-10-26
CH4180/87A CH676585A5 (en) 1987-10-26 1987-10-26 Device for storing and dispensing pressurised prods.

Publications (2)

Publication Number Publication Date
EP0320510A1 EP0320510A1 (de) 1989-06-21
EP0320510B1 true EP0320510B1 (de) 1993-12-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP88905346A Expired - Lifetime EP0320510B1 (de) 1987-06-26 1988-06-27 Vorrichtung zur lagerung und kontrollierten abgabe von unter druck stehenden produkten und verfahren zu ihrer herstellung

Country Status (10)

Country Link
US (1) US4969577A (th)
EP (1) EP0320510B1 (th)
JP (1) JP2612758B2 (th)
AU (1) AU606182B2 (th)
BR (1) BR8807106A (th)
DE (1) DE3886184D1 (th)
DK (1) DK89189D0 (th)
FI (1) FI890836A0 (th)
IN (1) IN171132B (th)
WO (1) WO1988010221A1 (th)

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DE102007051982A1 (de) 2007-08-29 2009-03-05 Seaquist Perfect Dispensing Gmbh Abgabevorrichtung
DE102007051980A1 (de) 2007-08-29 2009-03-05 Seaquist Perfect Dispensing Gmbh Abgabevorrichtung
EP2153907A1 (de) 2008-08-12 2010-02-17 Seaquist Perfect Dispensing GmbH Abgabevorrichtung mit montagefreundlichem Ventil
US8225966B2 (en) 2006-03-15 2012-07-24 Seaquist Perfect Dispensing Gmbh Dispensing device
US8240518B2 (en) 2006-05-16 2012-08-14 Seaquist Perfect Dispensing Gmbh Dispensing device and container for a cosmetic liquid
US8261952B2 (en) 2006-09-07 2012-09-11 Seaquist Perfect Dispensing Gmbh Dispensing device
US8453875B2 (en) 2008-06-20 2013-06-04 Aptar Dortmund Gmbh Dispensing device
US8573449B2 (en) 2006-06-08 2013-11-05 Aptar Dortmund Gmbh Dispensing device having an elastically deformable section for pumping a fluid
US8616417B2 (en) 2009-06-25 2013-12-31 Aptar Dortmund Gmbh Valve and discharge device
US8616416B2 (en) 2008-08-12 2013-12-31 Aptar Dortmund Gmbh Delivery head
US8863994B2 (en) 2007-03-15 2014-10-21 Aptar Dortmund Gmbh Dispensing device

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JPH02500572A (ja) 1990-03-01
AU606182B2 (en) 1991-01-31
US4969577A (en) 1990-11-13
DE3886184D1 (de) 1994-01-20
DK89189A (da) 1989-02-24
FI890836A (fi) 1989-02-22
FI890836A0 (fi) 1989-02-22
DK89189D0 (da) 1989-02-24
BR8807106A (pt) 1989-10-31
IN171132B (th) 1992-08-01
JP2612758B2 (ja) 1997-05-21
WO1988010221A1 (en) 1988-12-29
EP0320510A1 (de) 1989-06-21
AU1950188A (en) 1989-01-19

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