EP0178573A2 - Récipient pour la distribution de fluides par pression et procédé pour sa fabrication - Google Patents

Récipient pour la distribution de fluides par pression et procédé pour sa fabrication Download PDF

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Publication number
EP0178573A2
EP0178573A2 EP85112729A EP85112729A EP0178573A2 EP 0178573 A2 EP0178573 A2 EP 0178573A2 EP 85112729 A EP85112729 A EP 85112729A EP 85112729 A EP85112729 A EP 85112729A EP 0178573 A2 EP0178573 A2 EP 0178573A2
Authority
EP
European Patent Office
Prior art keywords
bag
coating
pleats
fluid
assembly
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
EP85112729A
Other languages
German (de)
English (en)
Other versions
EP0178573B1 (fr
EP0178573A3 (en
Inventor
Hyman Katz
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.)
EXXEL CONTAINER, L.P.
Original Assignee
CONTAINER IND Inc
Exxel Container 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 CONTAINER IND Inc, Exxel Container Inc filed Critical CONTAINER IND Inc
Publication of EP0178573A2 publication Critical patent/EP0178573A2/fr
Publication of EP0178573A3 publication Critical patent/EP0178573A3/en
Application granted granted Critical
Publication of EP0178573B1 publication Critical patent/EP0178573B1/fr
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
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • B65D83/0061—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents the contents of a flexible bag being expelled by the contracting forces inherent in the bag or a sleeve fitting snugly around the bag

Definitions

  • This invention relates to a fluid dispenser of the kind which has an outside casing, an inner flexible fluid container and means for applying pressure on the fluid w container to expel the fluid through a valve mechanism.
  • the flexible container is disposed within a rigid casing.
  • Means are provided within the casing to apply continuous pressure on the container walls and the fluid therein.
  • a valve is provided on the mouth of the container which is activated whenever a fluid is to be dispensed.
  • the expelling force is provided by an elastomeric sleeve which surrounds the fluid container.
  • the container In order to insure that substantially all the contents of a container are removable, the container must have a shape which makes it possible to collapse the container completely, i.e. with substantially no internal space left.
  • bags were provided which were radially foldable so that in their collapsed state they formed a disc. However the disc still had a relatively large diameter and inherently some residue always remained inside it.
  • An alternate method consisted of using an elongated bag with an open end attached to a dispensing valve, a closed end, and a cylindrical wall therebetween in which pleats are provided so as to divide the walls into sections which can fold in on each other two-by-two.
  • An objective of the present invention is to provide a dispenser with means for collapsing the flexible bag contained therein in a controlled manner until substantially all the fluid disposed within the bag has been expelled.
  • Another objective is to provide a dispenser which is relatively inexpensive.
  • a further objective is to provide a method of making said dispenser.
  • a fluid dispenser comprises a tubular bag made of a flexible, substantially inexpandable material for containing the fluid to be dispensed, said bag having a mouth adapted to be secured to a valve mechanism, and having a plurality of axial, longitudinal pleats; and a resilient tubular member substantially surrounding said bag and capable of being expanded radially outward as said bag is filled with a pressurized fluid so as to provide sufficient external pressure on said bag to eject said pressurized fluid when said valve mechanism is selectively actuated.
  • the pleated bag is provided with a coating by suitable means such as by dipping into a suitable latex so that a thin, even coating is formed thereon except for the pleat valleys where adjacent walls are bridged by a bead.
  • a dispenser with a pressurized or barrier bag comprises a bag assembly 10 (see Figure 1) which is typically inserted in an enclosure 11.
  • the assembly ccmprises a tubular bag 12 with a closed bottom end 14 and a mouth 16.
  • a metal cap 18 is fitted over the mouth 16.
  • the cap has a central orifice 20 communicating with the interior of the cap.
  • a valve assembly 22 adapted to release pressurized fluid contained within the bag when activated through orifice 20.
  • Such a valve is described in the above-mentioned patent No. 4,387,833.
  • the bag is surrounded by a relatively thin and resilient coating,24 which conforms to the shape of the bag.
  • the coating is described more fully below.
  • the coated bag is disposed within an elastomeric member 26 which is commonly described as an energy tube.
  • the member 26 is essentially coextensive with bag 12.
  • the bag is first formed into the shape of a bottle as shown in Figure 2.
  • the bag is made of a flexible but substantially nonresilient material which is relatively inert so that it will not impart any taste or smell to its contents.
  • the bag may be made out of a plastic material such as nylon, polypropylene, polyester or SARANEX. The material may be formed into the shape shown in Figure 2 by blow molding or similar well-known methods in the art.
  • the bottle shaped bag is pleated into the shape shown in Figures 4 and 5.
  • the bag has a plurality of longitudinal or axial pleats defined by crests 28 separated by troughs or valleys 30. Since the bag is flexible it may be compressed radially until the inner walls 32 of each pleat 28 essentially contact or fold over each other. When the bag is compressed or folded in this manner the onlv empty space left in the bag is a relatively narrow tube 34 defined by troughs 30.
  • the pleated bag can be programmed or constrained to re-fold in a very precise and controlled manner after being filled with a product by enveloping it with a coating applied over the pleats.
  • a rubber latex coating is applied to the exterior surface of the bag.
  • the latex is chosen so that when it is applied to the bag, it forms a smooth, even, elastic coating on the bag with a bead or rib being generated to fill the bottom of the pleat valleys 30, as shown at 36 on Figure 6.
  • the size of the bead depends on the density and viscosity of the latex.
  • Latex formulations similar to those used for making different rubber products, such as balloons, surgical gloves, etc. are suitable. Some change in solids content and/or viscosity may be required but these techniques are well known to those in this industry.
  • the latex is a water based emulsion containing the rubber, filler etc. at room temperature.
  • the bag shaped as shown in Figure 4 is dipped into the bath and removed. After the excess latex drains off, the coated bags are dipped into a coagulant, drained, then dipped into water for rinsing and then are heated in an oven, at the maximum temperature which will not affect the container, to drive off the water and to form a solid continuous elastic surface coating on the bag.
  • the coating so formed has sufficient adhesion to the bag to withstand further handling.
  • the bag is now ready for the final assembly.
  • the valve assembly 22 and cap 20 are fitted over mouth 16 of the bag.
  • the elastomeric member 26 is then expanded and pulled over the bag into the position shown in Figure 1.
  • the inner diameter of member 26 is smaller than the outer diameter of the coated bag shown in Figure 4 so that the pleats of the bag are forced close together. During this later operation a vacuum may be applied to the bottle to draw in the pleats thereby making the assembly easier.
  • a fluid is fed under pressure into the bag forcing it to expand substantially into the shape of Figure 2.
  • Member 26 also expands.
  • the elastomeric member 26 applies sufficient force in the bag to keep it pressurized after it (the bag) has been disconnected from the pressurized fluid source.
  • the fluid may be dispensed by activating the valve assembly 22.
  • the ribs or beads of the coating disposed in the pleat valleys force the bag to regain its pleated shape in a smooth, orderly fashion so that extraneous creases are not formed, until the bag is reduced to its minimum or collapsed stage at which point essentially all the fluid contained therein has been removed.
  • Figure 8 shows a cross-sectional view of a bag with a 1.9gm nominal dry weight latex coating taken along lines 8-8 of Figure 7.
  • Figures 9 and 10 show the same view of a bag with a 5gm nominal dry weight latex coating and no coating respectively. These nominal weights refer to the dry weight of the latex for a nominal 7 fl. oz. container. Smaller and larger containers would have corresponding different weights.
  • FIG. 8 A comparison of Figures 8 and 10 shows that the bag without a coating was refolded in a haphazard manner so that in its final stage it still contains many voids and the pleats are not discernible.
  • the bag assembly of Figure 8 has been deformed into an ellipse but there are less voids than in Figure 10 and the pleats are readily identifiable.
  • Figure 9 shows that the bag having a 5g latex reforms into a configuration with the least number of voids and its pleats are folded evenly.
  • figures 8-10 show the effectiveness of the invention to control the refolding of the bag.
  • the coating has a relatively non-slip surface so that when the coated bag is disposed within the energy tube sufficient frictional forces develop between the bag and the tube to prevent the tube from slipping axially during its expansion and contraction.
  • slipping was found to be undesirable because if the tube slips axially some portions of it become more expanded than other portions and therefore during contractions the bags were subjected to uneven pressure.
  • slippage could also be prevented by roughing the outer surface of the bag, it has been found that such an operation also introduces undue stress in the structure of the bag thereby weakening it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
EP19850112729 1984-10-17 1985-10-08 Récipient pour la distribution de fluides par pression et procédé pour sa fabrication Expired - Lifetime EP0178573B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66158384A 1984-10-17 1984-10-17
US661583 1984-10-17

Publications (3)

Publication Number Publication Date
EP0178573A2 true EP0178573A2 (fr) 1986-04-23
EP0178573A3 EP0178573A3 (en) 1988-05-11
EP0178573B1 EP0178573B1 (fr) 1992-03-18

Family

ID=24654213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850112729 Expired - Lifetime EP0178573B1 (fr) 1984-10-17 1985-10-08 Récipient pour la distribution de fluides par pression et procédé pour sa fabrication

Country Status (6)

Country Link
EP (1) EP0178573B1 (fr)
JP (1) JPS61118163A (fr)
AU (1) AU586646B2 (fr)
BR (1) BR8505152A (fr)
CA (1) CA1304726C (fr)
DE (1) DE3585658D1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203496A (en) * 1987-02-25 1988-10-19 Richard Friedrich Filling a container
US4949871A (en) * 1989-02-09 1990-08-21 Aerosol Systems, Inc. Barrier pack product dispensing cans
US5111971A (en) * 1989-05-26 1992-05-12 Robert Winer Self-pressurized container having a convoluted liner and an elastomeric sleeve
US5143260A (en) * 1990-06-05 1992-09-01 Nozone Dispenser Systems, Inc. Aerosol adapter clamp and power system
US5232126A (en) * 1989-05-26 1993-08-03 Robert Winer Liner for dispensing container
CN102196890A (zh) * 2008-10-23 2011-09-21 宝洁公司 材料分配系统及用于制造该系统的方法
US9409698B2 (en) 2011-03-02 2016-08-09 Greenspense Ltd. Propellant-free pressurized material dispenser
US9758641B2 (en) 2011-07-11 2017-09-12 T.G.L. S.P. Industries Ltd. Nanoclay hybrids and elastomeric composites containing same
US10913836B2 (en) 2013-01-16 2021-02-09 Greenspense Ltd. Elastomeric composites exhibiting high and long-lasting mechanical strength and elasticity and devices containing same
US10934076B2 (en) 2013-01-16 2021-03-02 Greenspense Ltd. Propellant-free pressurized material dispenser
RU2761004C1 (ru) * 2018-08-29 2021-12-02 Вэй-лунь ХУАН Насосное устройство, работающее на принципе создания разрежения

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6450814A (en) * 1987-08-19 1989-02-27 Tadao Shiraishi Spray-type bathing agent
JPH05904A (ja) * 1990-11-28 1993-01-08 Fumakilla Ltd フオーム状除草製剤及びその施用方法
PT1984279E (pt) * 2006-02-14 2010-02-12 Power Container Corp Dispositivo de distribuição de fluidos

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767078A (en) * 1970-11-03 1973-10-23 N Gortz Bladder type dispenser
US4387833A (en) * 1980-12-16 1983-06-14 Container Industries, Inc. Apparatus for containing and dispensing fluids under pressure and method of producing same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4423829A (en) * 1980-08-28 1984-01-03 Container Industries Inc. Apparatus for containing and dispensing fluids under pressure and method of manufacturing same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767078A (en) * 1970-11-03 1973-10-23 N Gortz Bladder type dispenser
US4387833A (en) * 1980-12-16 1983-06-14 Container Industries, Inc. Apparatus for containing and dispensing fluids under pressure and method of producing same

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2203496A (en) * 1987-02-25 1988-10-19 Richard Friedrich Filling a container
US4913197A (en) * 1987-02-25 1990-04-03 Hafesto Ag Device and process for preparing and dispensing spontaneously foaming materials for filling a container
GB2203496B (en) * 1987-02-25 1991-03-13 Richard Friedrich Process for filling a container, a device for this purpose and a method for its operation.
US4949871A (en) * 1989-02-09 1990-08-21 Aerosol Systems, Inc. Barrier pack product dispensing cans
US5111971A (en) * 1989-05-26 1992-05-12 Robert Winer Self-pressurized container having a convoluted liner and an elastomeric sleeve
US5232126A (en) * 1989-05-26 1993-08-03 Robert Winer Liner for dispensing container
US5143260A (en) * 1990-06-05 1992-09-01 Nozone Dispenser Systems, Inc. Aerosol adapter clamp and power system
GB2278823A (en) * 1992-02-03 1994-12-14 Akron Polymer Container Corp Liner for dispensing container
WO1993014987A1 (fr) * 1992-02-03 1993-08-05 Akron Polymer Container Corporation Chemise pour recipient distributeur
CN102196890A (zh) * 2008-10-23 2011-09-21 宝洁公司 材料分配系统及用于制造该系统的方法
CN102196890B (zh) * 2008-10-23 2015-05-06 宝洁公司 用于制造材料分配系统的方法
EP2361175B1 (fr) * 2008-10-23 2016-11-30 The Procter & Gamble Company Procédé de fabrication d'un systeme de distribution de matiere
US9409698B2 (en) 2011-03-02 2016-08-09 Greenspense Ltd. Propellant-free pressurized material dispenser
US10683159B2 (en) 2011-03-02 2020-06-16 Greenspense Ltd. Propellant-free pressurized material dispenser
US9758641B2 (en) 2011-07-11 2017-09-12 T.G.L. S.P. Industries Ltd. Nanoclay hybrids and elastomeric composites containing same
US10519297B2 (en) 2011-07-11 2019-12-31 T.G.L. S.P. Industries Ltd. Nanoclay hybrids and elastomeric composites containing same
US10913836B2 (en) 2013-01-16 2021-02-09 Greenspense Ltd. Elastomeric composites exhibiting high and long-lasting mechanical strength and elasticity and devices containing same
US10934076B2 (en) 2013-01-16 2021-03-02 Greenspense Ltd. Propellant-free pressurized material dispenser
RU2761004C1 (ru) * 2018-08-29 2021-12-02 Вэй-лунь ХУАН Насосное устройство, работающее на принципе создания разрежения

Also Published As

Publication number Publication date
AU4874285A (en) 1986-05-01
DE3585658D1 (de) 1992-04-23
JPH047264B2 (fr) 1992-02-10
EP0178573B1 (fr) 1992-03-18
BR8505152A (pt) 1986-09-09
CA1304726C (fr) 1992-07-07
EP0178573A3 (en) 1988-05-11
AU586646B2 (en) 1989-07-20
JPS61118163A (ja) 1986-06-05

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