EP0033377A2 - Behälter mit Ausgabedruck bildenden Mitteln - Google Patents

Behälter mit Ausgabedruck bildenden Mitteln Download PDF

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Publication number
EP0033377A2
EP0033377A2 EP80107681A EP80107681A EP0033377A2 EP 0033377 A2 EP0033377 A2 EP 0033377A2 EP 80107681 A EP80107681 A EP 80107681A EP 80107681 A EP80107681 A EP 80107681A EP 0033377 A2 EP0033377 A2 EP 0033377A2
Authority
EP
European Patent Office
Prior art keywords
component
disposed
envelope
pouch
container
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.)
Granted
Application number
EP80107681A
Other languages
English (en)
French (fr)
Other versions
EP0033377A3 (en
EP0033377B1 (de
Inventor
Ellis M. Reyner
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.)
Cessione ccl Technologies Inc
Original Assignee
Enviro-Spray Systems Inc
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
Application filed by Enviro-Spray Systems Inc filed Critical Enviro-Spray Systems Inc
Publication of EP0033377A2 publication Critical patent/EP0033377A2/de
Publication of EP0033377A3 publication Critical patent/EP0033377A3/en
Application granted granted Critical
Publication of EP0033377B1 publication Critical patent/EP0033377B1/de
Expired 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated
    • B65D83/62—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like
    • B65D83/625—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated by membranes, bags or the like the propellant being generated by a chemical or electrochemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant

Definitions

  • prior aerosol type dispensers generally were operable only in an upright condition, otherwise premature exhaustion of the dispensing medium would result with a substantial loss of usable product which would remain indispensable in the container due to loss of dispensing pressure.
  • Prior dispensers also had other deficiencies such as temperature sensitivity, non-uniform dispensing pressure, limited shelf-life, unreliability, difficulty of manufacture and relatively high cost of manufacture.
  • the present invention provides a dispensing mechanism which overcomes the above-mentioned deficiencies of the prior art devices and provides additional novel features and advantages, and a wider range of uses, than were possible with devices used heretofore.
  • Expulsion means for developing and maintaining relatively constant gaseous dispensing pressure in a container from which a product is to be dispensed, comprising an enclosed, fluid impermeable flexible plastic pouch disposed within the container, and having a pair of facing wall members.
  • a plurality of pocket members are disposed within the pouch in spaced relation to one another and affixed to the interior or one of said wall members.
  • a closure member is associated with the interior of the other wall member and releasably closes each of said pocket members.
  • Each pocket member contains a first component, e.g., sodium bicarbonate, of a two-component carbon dioxide gas generation mixture.
  • the second component e.g., citric acid solution
  • the second component e.g., citric acid solution
  • Starting delay means e.g., a rupturable or dissolvable capsule containing sodium bicarbonate and/or lithium carbonate is disposed within the pouch in contact with the second component for causing the initial generation of carbon dioxide gas after a prescribed period of time and each ppcket member is sequentially severable from the closure member to thereby empty its contents into admixture with the second component to generate more gas as the pouch expands due to the dispensing of the product from the container.
  • Container 10 has a cylindrical body or sidewall 11, inwardly dished bottom 12 and bell-shaped top 13 in which is mounted a conventional spring loaded aerosol spray valve assembly 14.
  • Container 10 and its component parts just described can be fabricated from any suitable material such as thin gauge aluminum or other metal, or even plastic depending on the product to be dispensed and any governing safety specifications that might be involved.
  • Valve assembly 14 is also of conventional design having plunger and spray head 15 carrying spray orifice 16, suitably constructed of plastic, and internal parts (not shown) such as a spring, ball valve and mounting ring 17 and bottom intake member 18 which may be of metal and/or plastic consistent with the previously mentioned requirements.
  • liquid product 19 and expulsion assembly 20 which is the subject of the present invention and as will be seen generates and maintains gas pressure within container 10 to enable product 19 to be dispensed on demand.
  • barrier member 22 At the upper end 21 of the interior of cylindrical body 11 is a perforated or foraminous barrier member 22 having a plurality of holes 23 distributed throughout its surface. Also affixed to inner surface 24 of sidewall 11 and extending longitudinally there along is a perforate tube member 25 having a plurality of holes 26 at spaced positions around and along said tube member 25.
  • the function of barrier member 22 and tube member 25 is to insure trouble-free operation of the dispenser and prevent expulsion assembly 20, as it expands in the manner to be described, from blocking off or plugging the interior of the container either laterally/circumferentially or plugging off the valve bottom intake member 18.
  • Expulsion assembly as shown is disposed within container 10 without being attached or anchored to container 10, although it may, if desired be so connected.
  • Assembly 20 is comprised of generally rectangular envelope, bag or pouch 27 which is constructed of a flexible, fluid impermeable plastic such as, for example, polyethylene or polypropylene and may be fabricated from a sheet of plastic by folding it into overlaid halves 27a, 27b which are then sealed or adhered by suitable means along their respective contacting side, bottom and top edges 28, 29, 30 respectively to form a sealed enclosure as shown in Figs. 1-3 inclusive.
  • a flexible, fluid impermeable plastic such as, for example, polyethylene or polypropylene
  • fluid impermeable flexible plastic sandwich or enfoldment 31 having a pair of facing wall members 32, 33 releasably adhered to one another (see also Figs. 2 through 6) and permanently attached by suitable means such as heat sealed portions 35 to respective interior sides 27c, 27d of pouch halves 27a, 27b respectively.
  • One wall member 32 is a substantially flat and the other wall member 33 has a plurality of cup-shaped depressions, cavities or pocket members 34 disposed inwardly from one surface thereof at spaced positions and aligned generally longitudinally of said enfoldment 31 which in turn is similarly aligned with respect to said envelope 20 in a substantially longitudinal relationship as shown in Fig. 1.
  • Pocket members 34 are "lidded" or closed by wall member 32 to encapsulate within each cavity 34'an aliquot of sodium bicarbonate 36 which may be either in the form of powder or a solution.
  • citric acid solution 37 In the interior of pouch 27 is citric acid solution 37.
  • starting means 38 which as shown is in the form of a dissolvable capsule and contains an initial charge of sodium bicarbonate which, after a predetermined period of time after assembly of the pouch 27 in container 10, filling the container with product 19 and capping it with the top 13 and associated parts, capsule 38 dissolves and causes the sodium carbonate contained therein to mix with the citric acid solution 37 and generate the initial quantity of carbon dioxide gas, thereby expanding envelope or pouch 27 and providing dispensing pressure within container 10.
  • the pouch member 27 in one preferred embodiment is constructed of a three layer laminated film having a middle layer of Saran, the external layer of Mylar and the inside layer (interior of the pouch) being low density polyethylene, each of said layers being approximately 2.5 mils in thickness except for the saran layer, which is only deposited from a spray.
  • the characteristics required or desired in said pouch is that it be non-toxic, have sufficient mechanical strength and chemical stability, be heat sealable (to the wall members) and flexible but not appreciably elastic or stretchable.
  • Wall member 32 is fabricated from material which contacts the bag 27 and is of compatible plastic, e.g., polyethylene. In one preferred embodiment it has an overall thickness of about 4.5 mils and is a three layer sandwich of about 0.5 mil Mylar in the middle and about 2.0 mils low density polyethylene either side.
  • compatible plastic e.g., polyethylene.
  • it has an overall thickness of about 4.5 mils and is a three layer sandwich of about 0.5 mil Mylar in the middle and about 2.0 mils low density polyethylene either side.
  • Wall member 33 carrying the cup-shaped depressions 34 is adapted for deep drawing and is in one preferred embodiment a laminated plastic having an exterior layer (the layer in contact with pouch 27) of low density polyethylene of from about 0..5 to about 20 mils thick and an interior layer (the other side) of polypropylene of from about 0.1 to about 3.75 mils thick or higher. It is to be understood that cavities 34 and capsule 38 may carry the citric acid and solution 37 may be sodium bicarbonate and water, or the two carbon dioxide generating components can be switched the other way around.
  • a typical formulation is for each depression 34 and the capsule 38 to be charged with about 1 gram each of a 50% citric acid solution and the envelope content 37 to be about 5 to 10 grams of sodium bicarbonate mixed with about 5 grams of water.
  • the pressure generated within container 10 is of the order of about 120 psig i20% at an ambient temperature of about 70°F, but any desired pressure may be developed by adjusting the stoichiometry of the particular gas-generating ingredients.
  • sodium bicarbonate and citric acid are normally preferred, it is possible that under particular circumstances other materials may be more suitable such as, for example, dilute hydrochloric acid (e.g., 10-30% even up to about 35%) in place of the citric acid, and lithium carbonate or calcium carbonate in place of the sodium bicarbonate.
  • Sheet 33 is formed in a mold by heating and drawing to form cavities 34. The cavities are then filled with one component, e.g., citric acid.
  • Sheet 32 is overlayed on sheet 33 to close cavities 34 and the two wall members are heat sealed together (Fig. 5) and enfoldment 31 is inserted into the open end 39 of pouch or bag 27 (Fig. 7) and the two members 31 and 27 are heat sealed together at 35.
  • Sodium carbonate solution 37 and starting capsule 38 are added to pouch 27 and then upper edge 30 of pouch 27 is heat sealed to completely enclose the contents in pouch 27 (Fig. 8).
  • the expulsion means assembly 20 is then inserted-into container 10 and product 19 added, barrier member 22 put into place, and top 13 affixed to container 10 (Fig. 10).
  • starting capsule 38 has dissolved, generating carbon dioxide gas
  • expanding pouch 27 and the dispenser is now ready for use (Fig. 11).
  • Figs. 3, 12 and 13 show schematically how expansion of pouch 27, to separate inner sides of which wall members 32, 33 are permanently attached, successively pulls apart portions of releasably adhered wall members 32, 33 to successively expose the contents of each cavity 34 and deliver it into contact and admixture with other gas generating component 37 in the bottom of the pouch.
  • Figs. 14-17 depict variations in the arrangement of cavities 34 and heat seals 35 as well as in configurations and relative dimensions of pouch 27 and enfoldment 31.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Package Specialized In Special Use (AREA)
EP80107681A 1979-12-19 1980-12-06 Behälter mit Ausgabedruck bildenden Mitteln Expired EP0033377B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10521679A 1979-12-19 1979-12-19
US105216 1979-12-19

Publications (3)

Publication Number Publication Date
EP0033377A2 true EP0033377A2 (de) 1981-08-12
EP0033377A3 EP0033377A3 (en) 1981-08-19
EP0033377B1 EP0033377B1 (de) 1986-02-26

Family

ID=22304647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107681A Expired EP0033377B1 (de) 1979-12-19 1980-12-06 Behälter mit Ausgabedruck bildenden Mitteln

Country Status (11)

Country Link
EP (1) EP0033377B1 (de)
JP (1) JPS5923869B2 (de)
KR (1) KR850001317B1 (de)
AU (1) AU535729B2 (de)
BR (1) BR8008249A (de)
CA (1) CA1148908A (de)
DE (1) DE3071460D1 (de)
ES (2) ES497875A0 (de)
IE (1) IE51803B1 (de)
IL (1) IL61661A (de)
MX (1) MX152943A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115504103A (zh) * 2022-10-19 2022-12-23 广州市展惟工业科技有限公司 一种高安全性的自增压喷雾存储装置

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4376500A (en) * 1980-07-25 1983-03-15 Enviro-Spray Systems, Inc. Expandable bag
US4478044A (en) * 1981-08-05 1984-10-23 Enviro-Spray Systems, Inc. Inflatable pouch and method of manufacture
US4513884A (en) * 1982-04-05 1985-04-30 Enviro-Spray Systems, Inc. Dispensing system and a refill pouch
US4491250A (en) * 1982-07-23 1985-01-01 Grow Group, Inc. Pressurized dispensing pouch
EP0113787B1 (de) * 1983-01-12 1987-01-21 Enviro-Spray Systems, Inc. Ausdehnbare Druckpackung für Abgabebehälter
JPH0641316B2 (ja) * 1983-05-13 1994-06-01 シー・シー・エル・インダストリイズ・インコーポレイテツド 生成物分配装置
FR2555965B1 (fr) * 1983-12-01 1986-10-31 Clanet Frank Procede de remplissage de boites aerosols a deux compartiments
JPS61245861A (ja) * 1985-04-24 1986-11-01 Osaka Eyazoole Kogyo Kk エアゾ−ル装置
AU616877B2 (en) * 1987-04-06 1991-11-14 153Rd Shelf Corporation Self-generating pressure applying means for a disposable container
US4929214A (en) * 1987-11-02 1990-05-29 Liebermann Ron B Inflatable enclosure and means to inflate same
DE29623308U1 (de) 1995-11-29 1998-02-12 Muntean, Viorica, Dipl.-Ing., Maria Lanzendorf Behälter zur Abgabe von Aerosolen oder Schäumen
JP2001163380A (ja) * 1999-12-03 2001-06-19 Fumakilla Ltd エアゾール噴霧器
JP2002240873A (ja) * 2001-12-25 2002-08-28 Hoyu Co Ltd エアゾール容器及び２剤吐出容器
JP5798220B2 (ja) * 2013-12-12 2015-10-21 株式会社ヒロマイト 二重構造容器の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718236A (en) * 1969-12-04 1973-02-27 E Reyner Pressurized container with non-rigid follower
FR2229241A5 (de) * 1973-05-07 1974-12-06 Oreal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115504103A (zh) * 2022-10-19 2022-12-23 广州市展惟工业科技有限公司 一种高安全性的自增压喷雾存储装置
CN115504103B (zh) * 2022-10-19 2024-05-14 广州市展惟工业科技有限公司 一种高安全性的自增压喷雾存储装置

Also Published As

Publication number Publication date
ES8204620A1 (es) 1982-05-01
DE3071460D1 (en) 1986-04-03
ES8303230A1 (es) 1983-02-01
IE51803B1 (en) 1987-04-01
EP0033377A3 (en) 1981-08-19
BR8008249A (pt) 1981-07-07
JPS5697569A (en) 1981-08-06
ES507832A0 (es) 1983-02-01
EP0033377B1 (de) 1986-02-26
AU535729B2 (en) 1984-04-05
MX152943A (es) 1986-07-04
KR850001317B1 (ko) 1985-09-14
CA1148908A (en) 1983-06-28
IL61661A (en) 1983-09-30
ES497875A0 (es) 1982-05-01
AU6522380A (en) 1981-06-25
JPS5923869B2 (ja) 1984-06-05
KR830004563A (ko) 1983-07-13
IE802527L (en) 1981-06-19

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