US20060243741A1 - Aerosol can - Google Patents

Aerosol can Download PDF

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Publication number
US20060243741A1
US20060243741A1 US10/489,272 US48927204A US2006243741A1 US 20060243741 A1 US20060243741 A1 US 20060243741A1 US 48927204 A US48927204 A US 48927204A US 2006243741 A1 US2006243741 A1 US 2006243741A1
Authority
US
United States
Prior art keywords
spray dispenser
reservoir
dispenser according
filling substance
expansion body
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.)
Abandoned
Application number
US10/489,272
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English (en)
Inventor
Hartmut Schiefer
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.)
FULMEN DISPENSER GmbH
Original Assignee
FULMEN DISPENSER 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
Application filed by FULMEN DISPENSER GmbH filed Critical FULMEN DISPENSER GmbH
Assigned to FULMEN DISPENSER GMBH reassignment FULMEN DISPENSER GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHIEFER, HARTMUT
Publication of US20060243741A1 publication Critical patent/US20060243741A1/en
Abandoned 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

  • the invention relates to a spray dispenser for delivering a substance from a spray nozzle.
  • the substance may be delivered in the form of a fine mist, but also in form of an atomized stream with larger drops.
  • spray dispensers include a filling substance reservoir which receives the filling substance, and also a valve unit that is connected to the filling substance reservoir, with a spray head which in turn is furnished with a spray nozzle.
  • the spray nozzle should be generally oriented in a certain direction; when hand pressure is applied, the nozzle frequently deviates from this direction.
  • a further known construction uses a receptacle made from an elastomer material as a filling substance reservoir. This material is capable of expansion. When the filling substance is introduced (“charging”), the reservoir expands. Due to its intrinsic elastic force it exerts a pressure filling substance. When the valve is opened by light pressure on the spray head, the reservoir ejects a quantity of the filling substance through the spray nozzle because of the reservoir's own elastic force indicated above.
  • This principle has one disadvantage. This is that the elastic force is constantly weakened over the course of time as the filling substance reservoir becomes progressively emptier. This means that the spray pressure and thus also the volume of the spray jet expelled through the spray nozzle diminishes over time. The resulting effort thus changes over the lifetime of a spray dispenser, which is undesirable. Moreover, towards the end of the spray dispenser's lifetime, that is when the spray pressure on the filling substance is very small, a certain quantity remains in the reservoir. This remainder in the reservoir can no longer be expelled because the elastic force has become negligible.
  • the object underlying the invention is to design a spray dispenser having a filling substance reservoir made from elastic material such that the elastic force of the reservoir remains at least approximately constant for the majority of the spray dispenser's lifetime, and also particularly in the last phase, that is when only a little filling substance remains in the reservoir, it is still sufficient to be able to expel the last remainder, or at least the majority thereof, from the reservoir.
  • the residual quantity in the reservoir should be as small as possible and the spray system's should be barely dependent on temperature.
  • the inventors have taken a new direction. They have introduced an expansion body into the filling substance reservoir, which reservoir is made from elastic material, for example rubber. Thereby, before the two components are assembled, the internal diameter of the reservoir is smaller than the external diameter of the expansion body. The expansion body therefore widens the reservoir during introduction. The reservoir thus tightly encompasses the expansion body and thus places it under a certain tension.
  • the inventors realized that the stress-strain curve of the elastic material of the filling substance reservoir—with selection of an optimum elastic material-remains at least approximately constant, so that the reservoir's intrinsic elastic force consequently remains unchanged regardless of its expanded condition, and indeed over a relatively large expansion range.
  • This has two advantages: the quality of the spray jet with respect to pressure and volume is largely preserved for the lifetime of the spray dispenser.
  • the material of the reservoir retains sufficient force so that even a residual quantity may be expelled from the reservoir, in large part if not completely.
  • the expansion body may be shaped like a projectile and consequently may have a cylindrical form for most of its surface.
  • the contour of the reservoir's inner wall may have the same shape.
  • the expansion body may be inserted forcefully into the reservoir, with the result that the reservoir is expanded. The effect in this case is to draw the reservoir over the expansion body.
  • a further possibility consists in expanding the reservoir by means other than with the aid of the expansion body itself.
  • the expansion body may be easily introduced with the reservoir in the expanded condition.
  • Yet another possibility is to apply a vacuum to the outer surface of the reservoir in order to achieve an expansion, then to introduce the expansion body into the reservoir, and finally to remove the vacuum again.
  • All spray nozzles of whatever kind must of course have an opening for introduction of the filling substance, and also an opening for its expulsion.
  • the valve indicated in the aforegoing is located in the opening for expulsion. This is opened by pressure on the spray head—generally with the forefinger.
  • the design may be configured such that only one valve is present. This serves both for filling the reservoir and also to release the filling substance for the purpose of spraying.
  • the valve is a clack valve, which allows the filling substance—without pressure being exerted on the spray head—to pass through in one direction only, that is the filling direction.
  • An especially interesting embodiment consists in providing the expansion body with a channel that extends through the expansion body.
  • the channel may pass through the expansion body in the axial direction over its entire length. If the shape of the reservoir is imagined as that of a sack, the channel in the expansion body would open in the area of the bottom of the sack. However, it is also conceivable to provide the channel with lateral outflows, so that several partial channels have their openings on the inner wall of the filling substance reservoir. It is also advantageous to provide channels in the longitudinal direction of the expansion body for purposes of assembling the expansion body, and thus create optimal conditions for the subsequent filling process.
  • FIG. 1 a diagrammatic lengthwise section of the essential parts of a spray dispenser.
  • FIG. 2 a second embodiment of a spray dispenser in a view similar to that of FIG. 1 .
  • FIG. 3 illustrates the stress-strain behaviour of the elastic material from which a filling substance reservoir according to the invention is constructed.
  • the spray dispenser shown in FIG. 1 includes a filling substance reservoir 1 .
  • this is double walled. Specifically, it consists of a combination of an external container 1 . 2 and an internal container 1 . 1 .
  • Internal container 1 . 1 is made from a material that is inert with respect to the filling substance in question.
  • External container 1 . 2 is made from an elastic material, which forms the energy storage medium.
  • the two containers are arranged so that their corresponding surfaces are directly adjacent one another. They retain this contact even under any operating state.
  • the internal container thus follows movement of the external container as it expands or contracts.
  • External container 1 . 2 is enlarged in its upper area to form a flange 1 . 2 . 1 .
  • the flange is cylindrical.
  • a pot-shaped mounting body 2 is also shown. This tightly encloses flange 1 . 2 . 1 .
  • Mounting body 2 has a cylindrical peripheral wall 2 . 1 , a circular plate 2 . 2 and a collar 2 . 3 .
  • Mounting body 2 is itself enclosed by an accommodating hollow body 3 , specifically by throat 3 . 1 thereof. Mounting body 2 is thus secured against axial displacement.
  • Flange 1 . 2 . 1 of external container 1 . 2 encloses a valve 4 .
  • a filling and emptying connector 5 To this is connected a filling and emptying connector 5 . Filling substance is introduced through filling and emptying connector 5 and through valve 4 for the purpose of filling, and when the spray dispenser is used, is also ejected therethrough in the opposite direction. This process will be explained in detail below.
  • expansion body 6 This is enclosed by internal container 1 . 1 . It is furnished with a plurality of grooves equally distributed over its perimeter, so that a corresponding number of longitudinal channels 6 . 1 is formed. Longitudinal channels 6 . 1 extend practically the entire length of expansion body 6 . Thus, a conduit connection is created between valve 4 and the lower area of filling substance reservoir 1 .
  • the external diameter of the filling substance reservoir is larger than the external diameter of the filling substance reservoir in the unassembled condition. This means that when reservoir 1 is mounted—pulled on—over expansion body 6 it is expanded and thus encloses the latter under stress.
  • the filling substance is introduced under pressure through filling and emptying connector 5 and further through valve 4 into the upper area of reservoir 1 . It then flows downwards through channels 6 . 1 of expansion body 6 . Since the filling takes place under pressure, reservoir 1 is expanded so that it is lifted away from expansion body 6 . An annular space is thus created over the entire length of the filling substance reservoir, which is filled with the filling substance. During this expansion, the filling pressure of the filling substance operates against the elastic force that is intrinsic to the reservoir. The expansion of reservoir 1 may be continued until the outer surface of external container 1 . 2 is largely flush against the inner surface 3 . 1 of the receiving hollow body.
  • Valve 4 may be constructed as a clack valve 4 so that it initially allows only an inflow of the fill substance, but not a backflow. Valve 4 is further constructed in such manner that the check or blocking function of valve 4 may be prevented, for example by pressing a finger on a plunger—not shown here—which may be a component of filling and emptying connector 5 .
  • Mounting body 2 may be moulded or injected onto reservoir 1 , or may be placed thereon as a separate part. It may be made from plastic, metal or a combination thereof.
  • connection between mounting body 2 of reservoir 1 and the enclosed hollow body 3 may have the form of a snap-locking connection.
  • a hook may be conformed on one of these two fixtures, and corresponding recesses or other mating elements may be conformed on the other.
  • Mounting body 2 may also be made from fibre glass reinforced plastic, for example from fibre glass reinforced polyamide or polyester.
  • Filling substance reservoir 1 may also be produced in different ways. Accordingly, it may have a varying profile over its length.
  • Hollow body 3 for mounting may be made from metal or plastic or any other material, for example even from cardboard.
  • mounting body 2 is adhesively affixed to reservoir 1 during injection moulding.
  • an insert may also be attached between these components.
  • the insert may contain the valve and be permanently affixed thereto.
  • the spray dispenser shown in FIG. 2 differs from the one shown in FIG. 1 as follows:
  • Filling substance reservoir 1 is only single-walled, not double-walled.
  • An elastomer end plate 7 is provided.
  • a positive fitting connection is created between elastomer end plate 7 and the bottom end of reservoir 1 , because the bottom end of reservoir 1 is furnished with a flange 1 . 2 . 2 that cooperates with a corresponding collar 7 . 1 of end plate 7 .
  • the bottom end of reservoir 1 is open in the unassembled condition—unlike the embodiment according to FIG. 1 .
  • the neck of filling substance reservoir 1 has a bulge 1 . 2 . 3 , which snaps into a corresponding annular groove in mounting hollow body 3 .
  • Bulge 1 . 2 . 3 and the associated annular groove extend concentrically with the longitudinal axis of the spray dispenser.
  • end plate 7 is provided with a ring 7 . 2 that may lie flush with internal surface 3 . 1 of hollow body 3 , thus performing a further fixing function.
  • Longitudinal channels 6 . 1 of expansion body 6 may—as seen in cross-section—be distributed evenly over the perimeter of expansion body 6 . However, it is also sufficient to provide a single such longitudinal channel. Also, in addition to or instead of any longitudinal channels 6 . 1 on the periphery, a central aperture may be provided that penetrates the expansion body 6 for the entire length thereof. In such a case, the filling substance is introduced into the central channel through valve 4 from above during filling, and exits there from at the lower end. During expulsion, in the case of FIG. 1 it is forced against the inner surface of internal container 1 . 1 , and in the case of FIG. 2 against surface 7 . 4 of end plate 7 .
  • FIG. 3 shows the stress-strain behavior of the material from which reservoir 1 is made—in the case of FIG. 1 of the material of at least one of the container components, i.e. of internal container 1 . 1 and/or of external container 1 . 2 .
  • the corresponding parameters are chosen such that the material of reservoir 1 is already subjected to an initial stress I in the assembled but unfilled condition, and subjected to a final stress II in the filled condition.
  • the spray dispenser or more precisely the filling substance reservoir 1 —operates in the approximately horizontal range indicated. Even if only a small amount of filling substance remains between expansion body 6 and reservoir 1 , the material of the reservoir 1 still retains a certain elastic strength, which is sufficient to generate a corresponding spray pressure when the spray dispenser is used. This also serves to ensure that no undesirable residue of the filling substance is left behind in reservoir 1 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
US10/489,272 2001-09-12 2002-09-12 Aerosol can Abandoned US20060243741A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10144951A DE10144951A1 (de) 2001-09-12 2001-09-12 Sprühdose
DE10144951.8 2001-09-12
PCT/EP2002/010238 WO2003022711A1 (fr) 2001-09-12 2002-09-12 Bombe a aerosol

Publications (1)

Publication Number Publication Date
US20060243741A1 true US20060243741A1 (en) 2006-11-02

Family

ID=7698787

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/489,272 Abandoned US20060243741A1 (en) 2001-09-12 2002-09-12 Aerosol can

Country Status (7)

Country Link
US (1) US20060243741A1 (fr)
EP (1) EP1414717A1 (fr)
JP (1) JP2005502551A (fr)
CA (1) CA2462373A1 (fr)
DE (1) DE10144951A1 (fr)
RU (1) RU2004107483A (fr)
WO (1) WO2003022711A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060237486A1 (en) * 2002-08-15 2006-10-26 Olaf Kersten Discharge valve provided with a sack
WO2012117401A1 (fr) 2011-03-02 2012-09-07 Greenspense Ltd. Distributeur de matière sous pression sans gaz propulseur
WO2014111940A1 (fr) 2013-01-16 2014-07-24 Greenspense Ltd. Composites élastomères présentant une résistance mécanique et une élasticité élevées et de longue durée et dispositifs les contenant
US9573737B2 (en) 2015-04-15 2017-02-21 Dow Global Technologies Llc Flexible container with a spray valve
US9758641B2 (en) 2011-07-11 2017-09-12 T.G.L. S.P. Industries Ltd. Nanoclay hybrids and elastomeric composites containing same
US10239682B2 (en) 2013-01-16 2019-03-26 Greenspense Ltd. Propellant-free pressurized material dispenser
US10377555B2 (en) 2015-04-15 2019-08-13 Dow Global Technologies Llc Flexible container with a spray valve
US20220258950A1 (en) * 2019-07-29 2022-08-18 TECTRO SMT GmbH Force-generating Body for a Device for Dispensing Contents

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10310947A1 (de) 2003-03-11 2004-10-07 Schiefer, Hartmut, Prof. Dr.-Ing. Sprühvorrichtung
JP4505712B2 (ja) * 2003-07-07 2010-07-21 ソニー株式会社 ダイレクトメタノール型燃料電池用燃料タンク及びこれを用いたダイレクトメタノール型燃料電池システム
DE102004005881A1 (de) * 2004-01-19 2005-08-04 Karl Bosch Vorrichtung zum Vernebeln von strömbarem Füllgut
DE102018006032B4 (de) * 2018-07-31 2023-05-17 TECTRO SMT GmbH Behälter für die dosierte Ausbringung eines Füllguts und Fertigungsverfahren hierfür

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672543A (en) * 1971-02-11 1972-06-27 Plant Ind Inc Flowable substances dispenser
US4260110A (en) * 1977-02-18 1981-04-07 Winfried Werding Spray nozzle, devices containing the same and apparatus for making such devices
US4457455A (en) * 1981-10-13 1984-07-03 Philip Meshberg Collapsible container
US4981238A (en) * 1987-07-16 1991-01-01 Paul Wenmaekers Dispensing can for viscous substances
US5137179A (en) * 1990-02-15 1992-08-11 Hans Stoffel Containers and methods for preparing and manufacturing the same
US5137175A (en) * 1990-02-28 1992-08-11 Gmi Engineering & Management Institute Fluid storing and dispensing
US5265765A (en) * 1990-06-09 1993-11-30 Hildegard Hirsch Geb. Bauerle Container made of flexible plastic for attaching to an inflexible top and method for attaching same
US5372311A (en) * 1993-08-04 1994-12-13 Nye; Norman H. Spray type pressure dispensing container
US5685456A (en) * 1995-05-24 1997-11-11 The United States Of America As Represented By The Secretary Of The Navy Regulated dispensing system
US5730328A (en) * 1994-06-15 1998-03-24 Praezisions-Werkzeuge Ag Double wall dispensing container including a collapsible trellis insert
US5772080A (en) * 1995-08-01 1998-06-30 Valois S.A. Fixing ring with dual indexing
US5921439A (en) * 1998-01-26 1999-07-13 Pure Vision International L.L.P. Aerosol spray container with improved dispensing valve assembly
US6073804A (en) * 1997-11-13 2000-06-13 L'oreal Device for packaging and dispensing a fluid
US20020047026A1 (en) * 2000-10-23 2002-04-25 Gilles Jourdin Fluid dispenser
US6390332B2 (en) * 2000-01-24 2002-05-21 Riso Kagayu Corporation Liquid container
US6439430B1 (en) * 2000-09-22 2002-08-27 Summit Packaging Systems, Inc. Collapsible bag, aerosol container incorporating same and method of assembling aerosol container
US6874659B2 (en) * 2002-05-23 2005-04-05 Hilti Aktiengesellschaft Pressure container

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1059090A (en) * 1964-12-31 1967-02-15 Bristol Siddeley Engines Ltd Improvements in or relating to discharging fluid from a container
IT1094411B (it) * 1977-08-02 1985-08-02 Werding Winfried J Ugello spruzzatore,dispositivi comprendenti tale ugello e procedimento per la loro produzione
AU3245993A (en) * 1991-12-18 1993-07-19 Procter & Gamble Company, The Package with replaceable inner receptacle having large integrally molded fitment

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672543A (en) * 1971-02-11 1972-06-27 Plant Ind Inc Flowable substances dispenser
US4260110A (en) * 1977-02-18 1981-04-07 Winfried Werding Spray nozzle, devices containing the same and apparatus for making such devices
US4457455A (en) * 1981-10-13 1984-07-03 Philip Meshberg Collapsible container
US4981238A (en) * 1987-07-16 1991-01-01 Paul Wenmaekers Dispensing can for viscous substances
US5137179A (en) * 1990-02-15 1992-08-11 Hans Stoffel Containers and methods for preparing and manufacturing the same
US5137175A (en) * 1990-02-28 1992-08-11 Gmi Engineering & Management Institute Fluid storing and dispensing
US5265765A (en) * 1990-06-09 1993-11-30 Hildegard Hirsch Geb. Bauerle Container made of flexible plastic for attaching to an inflexible top and method for attaching same
US5372311A (en) * 1993-08-04 1994-12-13 Nye; Norman H. Spray type pressure dispensing container
US5730328A (en) * 1994-06-15 1998-03-24 Praezisions-Werkzeuge Ag Double wall dispensing container including a collapsible trellis insert
US5685456A (en) * 1995-05-24 1997-11-11 The United States Of America As Represented By The Secretary Of The Navy Regulated dispensing system
US5772080A (en) * 1995-08-01 1998-06-30 Valois S.A. Fixing ring with dual indexing
US6073804A (en) * 1997-11-13 2000-06-13 L'oreal Device for packaging and dispensing a fluid
US5921439A (en) * 1998-01-26 1999-07-13 Pure Vision International L.L.P. Aerosol spray container with improved dispensing valve assembly
US6390332B2 (en) * 2000-01-24 2002-05-21 Riso Kagayu Corporation Liquid container
US6439430B1 (en) * 2000-09-22 2002-08-27 Summit Packaging Systems, Inc. Collapsible bag, aerosol container incorporating same and method of assembling aerosol container
US20020047026A1 (en) * 2000-10-23 2002-04-25 Gilles Jourdin Fluid dispenser
US6874659B2 (en) * 2002-05-23 2005-04-05 Hilti Aktiengesellschaft Pressure container

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060237486A1 (en) * 2002-08-15 2006-10-26 Olaf Kersten Discharge valve provided with a sack
US10683159B2 (en) 2011-03-02 2020-06-16 Greenspense Ltd. Propellant-free pressurized material dispenser
US9409698B2 (en) 2011-03-02 2016-08-09 Greenspense Ltd. Propellant-free pressurized material dispenser
WO2012117401A1 (fr) 2011-03-02 2012-09-07 Greenspense Ltd. Distributeur de matière sous pression sans gaz propulseur
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
WO2014111940A1 (fr) 2013-01-16 2014-07-24 Greenspense Ltd. Composites élastomères présentant une résistance mécanique et une élasticité élevées et de longue durée et dispositifs les contenant
US10239682B2 (en) 2013-01-16 2019-03-26 Greenspense Ltd. Propellant-free pressurized material dispenser
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
US9573737B2 (en) 2015-04-15 2017-02-21 Dow Global Technologies Llc Flexible container with a spray valve
US10377555B2 (en) 2015-04-15 2019-08-13 Dow Global Technologies Llc Flexible container with a spray valve
US20220258950A1 (en) * 2019-07-29 2022-08-18 TECTRO SMT GmbH Force-generating Body for a Device for Dispensing Contents

Also Published As

Publication number Publication date
EP1414717A1 (fr) 2004-05-06
WO2003022711A1 (fr) 2003-03-20
RU2004107483A (ru) 2005-03-27
CA2462373A1 (fr) 2003-03-20
JP2005502551A (ja) 2005-01-27
DE10144951A1 (de) 2003-04-17

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Legal Events

Date Code Title Description
AS Assignment

Owner name: FULMEN DISPENSER GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SCHIEFER, HARTMUT;REEL/FRAME:016261/0428

Effective date: 20030930

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION