US20050139620A1 - Self-sealing container closure - Google Patents

Self-sealing container closure Download PDF

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Publication number
US20050139620A1
US20050139620A1 US10/509,860 US50986004A US2005139620A1 US 20050139620 A1 US20050139620 A1 US 20050139620A1 US 50986004 A US50986004 A US 50986004A US 2005139620 A1 US2005139620 A1 US 2005139620A1
Authority
US
United States
Prior art keywords
sealing plug
annular disk
storage container
container closure
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.)
Abandoned
Application number
US10/509,860
Other languages
English (en)
Inventor
Wolfgang Heukamp
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.)
RPC Wiko GmbH and Co KG
Original Assignee
RPC Wiko GmbH and Co KG
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 RPC Wiko GmbH and Co KG filed Critical RPC Wiko GmbH and Co KG
Assigned to RPC WIKO GMBH & CO. KG reassignment RPC WIKO GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HEUKAMP, WOLFGANG
Publication of US20050139620A1 publication Critical patent/US20050139620A1/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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2081—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve port
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
    • B65D51/1644—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element the element being a valve

Definitions

  • the invention concerns a container closure for flexible storage containers, for example, bottles or tubes that contain products that are liquid to pasty, wherein the container closure automatically opens like a valve to discharge the product when the storage container is squeezed and is then automatically closed again by the restoring force of the storage container.
  • EP 0 048 420 B1 describes an expensive device that consists of a hollow-cylindrical storage container with a dispenser head with a dispenser pump, in which downwardly directed external pressure on the dispenser pump forces the product in the storage container out of the storage container through the applicator hole.
  • dispensers with especially simple designs are known, in which the product is delivered by squeezing the storage container out of an opening of the storage container and in which, depending on the purpose and viscosity of the product, the opening of the storage container is directed downward. A simple cap, screw closure, or alignment pin is then used to open and close the opening.
  • a storage container closure of this type is described in DE 692 02 466 T2. It consists of a closure body that is closed with a cover and mounted, for example, screwed onto, the neck of a storage container.
  • a convex elastic valve with slits is centrally located in the closure body on a concave support device.
  • this previously known container closure has the disadvantage that the negative pressure remaining in the storage container after external pressure is no longer being applied is eliminated only unsatisfactorily, if at all.
  • the objective of the invention is to design a container closure of the type specified above with simple design and manufacture in such a way that, in addition to automatic opening and closing, complete ventilation of the storage container occurs upon completion of the delivery process.
  • a dispenser of the type described above with the characterizing features of claim 1 , in accordance with which the container closure consists of a housing with a centrally arranged, axially displaceable elastic annular disk and an axially displaceable sealing plug arranged centrally below the annular disk, such that the downward axial movement of the annular disk is limited by several stop ridges, and the upward axial movement of the sealing plug is limited by at least one stop ridge.
  • annular disk on a sealing plug produces a closable delivery hole between these two sealing elements by simple means.
  • the annular disk is lifted centrally from the sealing plug towards the outside, which opens a delivery gap between the annular disk and the sealing plug.
  • the annular disk drops back onto the sealing plug due to the negative pressure that now exists in the storage container and thus seals the storage container again.
  • the elasticity of the sealing disk is adapted to the viscosity of the product that is to be dispensed and to the restoring force of the storage container to ensure complete restoration of the annular disk.
  • the sealing disk since not only the sealing disk but also the sealing plug is designed to be axially displaceable, it is possible to achieve not only automatic opening and closing of the container closure but also the desired complete ventilation of the storage container upon completion of the delivery process, such that the sealing plug is inwardly displaced by the negative pressure that prevails in the housing of the storage container and opens a ventilation gap between the annular disk and the sealing plug. Alternate axial displacement of the annular disk and sealing plug in opposite directions thus occurs.
  • the stop ridges that limit the axial displacement of the annular disk and the sealing plug are arranged between the annular disk and the annular shoulder of the sealing plug.
  • the stop ridges prevent the sealing plug from also being displaced in the same direction, and after the product has been dispensed, they prevent the annular disk from following the inwardly displaced sealing plug.
  • the sealing plug is supported on a spring element, by which the sealing plug is pressed from below against the stop ridges and against the annular disk.
  • the spring tension of the spring element is adjusted in such a way that the restoring force of the storage container and the negative pressure it produces are sufficient to displace the sealing plug inward against the spring tension.
  • Various axially acting springs can be used as spring elements, for example, helical springs or radially arranged leaf springs.
  • Dispensing Position The application of external force on the storage container creates an excess pressure in the storage container; the annular disk is lifted from the sealing plug and the stop ridges by the upward pressure of the product, and the sealing plug continues to be pressed against the stop ridges from below by the spring element; the material is discharged through the gap between the annular disk and the sealing plug that has formed towards the top.
  • Ventilation Position The restoring force of the storage container produces a negative pressure in the storage container; the annular disk is again resting on the stop ridges due to its elasticity, the sealing plug is displaced downward against the spring tension of the spring element, and the container is ventilated through the gap between the annular disk and the sealing plug that has formed towards the bottom. During this process, residual product (drops) that may have been left behind is drawn back into the storage container, so that the closure remains clean. After pressure equalization has occurred, the sealing plug returns to its initial position.
  • FIG. 1 shows a container closure in a vertical section in the initial position.
  • FIG. 2 shows the container closure of FIG. 1 in the delivery position.
  • FIG. 3 shows the container closure of FIG. 1 in the ventilation position.
  • FIG. 4 shows the container closure of FIG. 1 installed in a possible dispenser head in a vertical section.
  • FIG. 5 shows a spring element that consists of U-shaped leaf springs.
  • FIG. 6 shows a spring element that consists of flat leaf springs.
  • FIG. 7 shows a spring element that consists of radially bent leaf springs.
  • FIG. 8 shows a top view of an alternative embodiment of a container closure installed in a possible dispenser head.
  • FIG. 9 shows the container closure of FIG. 8 in a vertical section.
  • FIG. 10 shows an enlarged section of the container closure of FIG. 9 .
  • FIGS. 1, 2 , and 3 show a container closure 1 of the invention in different open and closed positions resulting from the internal pressure of the storage container.
  • the storage container itself is not shown in FIGS. 1 to 3 .
  • the container closure 1 shown in FIG. 1 in the initial, closed position consists of an outer annular housing 5 with stop ridges 6 arranged radially at the upper end.
  • a sealing plug 3 is pressed from the inside (in the drawing, from below) against these stop ridges 6 by the central head 17 of a spring element with a helical spring 4 .
  • An annular shoulder 9 on the lower end of the sealing plug 3 prevents any possible further axial movement of the sealing plug towards the outside (in the drawing, upward).
  • An elastic annular disk 2 is located at the top on the stop ridges 6 and on the sealing plug 3 .
  • the inside diameter of the annular disk 2 corresponds to the outside diameter of an annular groove 10 of the sealing plug 3 , so that the annular disk 2 and the sealing plug 3 form a common upper surface and a tight seal.
  • the container closure of FIG. 1 is in the delivery position.
  • Increased internal pressure in the storage container which was produced by squeezing the storage container, pressed the product to be delivered from below against the stop ridges 6 , the sealing plug 3 , and the annular disk 2 .
  • the stop ridges 6 which are rigidly connected with the housing 5
  • the sealing plug 3 which rests on the stop ridges 6
  • only the annular disk 2 bulges outward. This results in the formation of a delivery gap 7 between the annular disk 2 and the sealing plug 3 , through which the product is discharged to the outside of the container closure 1 in the direction 11 indicated by the arrow.
  • FIG. 3 the container closure of FIG. 1 is in the ventilation position after completion of the delivery process.
  • the restoring force of the storage container produced a negative pressure in the interior of the storage container, so that the product was drawn back into the storage container through the delivery gap 7 .
  • the annular disk 2 Due to its elasticity, the annular disk 2 has returned to its initial position of FIG. 1 and again rests flat on the stop ridges 6 .
  • the negative pressure caused the sealing plug 3 to be drawn inward against the spring tension of the helical spring 4 of the spring element. As shown in FIG.
  • FIG. 4 shows a possible installation of a container closure 1 of the invention in the dispenser head 20 of a storage container.
  • the dispenser head 20 consists of an outer annular housing 21 with a cover 23 that can be snapped on at the top.
  • On the inside of the upper end of the dispenser head 20 there is an inner ring 22 with a screw thread for mounting on a correspondingly dimensioned storage container.
  • Inside this inner ring 22 there is an annular inner chamber 24 , into which the complete container closure 1 of FIG. 1 is inserted.
  • the outer annular housing 21 , the inner ring 22 , and the annular inner chamber 24 are fabricated as a single piece in the illustrated embodiment.
  • the spring element used to press upward against the sealing plug 3 in FIGS. 1 to 4 consists of an outer ring 16 with a helical spring 4 mounted in it and a central head 17 , which is pressed from below against the sealing plug 3 by the helical spring 4 .
  • the upper end of the helical spring 4 is attached to the central head 17 , and the lower end is attached to the outer ring 16 .
  • the spring element, which consists of the spring 4 , the central head 17 , and the outer ring 16 thus forms a structural unit that is inserted in the housing 5 from below.
  • FIGS. 5 to 7 Additional examples of possible designs of a spring element that can be inserted in the container closure of the invention are illustrated in FIGS. 5 to 7 .
  • These spring elements also consist of an outer ring 16 with a central head 17 , but here the central head 17 is not connected with the outer ring 16 by a helical spring 4 but rather by leaf springs 18 , 19 , 25 that run radially inward.
  • the leaf springs 18 , 19 , 25 are arranged in such a way that, after the spring element has been installed, they press the central head against the sealing plug 3 from below with compressive tension.
  • Examples of possible embodiments are flat leaf springs 18 ( FIG. 6 ), leaf springs [ 19 ] that are bent downward in a U-shape ( FIG. 5 ), and radially bent leaf springs 25 ( FIG. 7 ).
  • FIGS. 8 to 10 show an alternative design of a container closure in accordance with the invention.
  • FIG. 8 shows a top view and FIG. 9 a vertical section of a possible dispenser head 20 ′ with a housing 21 , in which the alternative container closure 1 ′ is installed.
  • the annular disk 31 and the sealing plug 30 together no longer form the upper seal of the container closure 1 ′ in the form of a flat surface, where they can easily be damaged, but rather in this case they lie at the lower end of a funnel-shaped dispenser mouth 35 that opens upward and are thus protected inside the upper part of the container closure 1 ′.
  • a pin-like stop ridge 33 which is rigidly connected with the housing 5 ′ by three support legs 34 , is arranged in the center of this funnel-shaped dispenser mouth 34 . It is guided from above onto the sealing plug 30 and limits the upward axial displacement of the sealing plug 30 . The sealing plug 30 is pressed from below against this pin-like stop ridge 33 by the spring tension of a spring element 4 . The annular space remaining between the sealing plug 30 and the open funnel-shaped dispenser mouth 35 is sealed by an annular disk 31 , whose peripheral edge is wedged between the stop ridges 32 below and the annular wall 36 of the funnel-shaped dispenser mouth 35 above.
  • FIG. 10 which shows an enlarged section of FIG. 9 , details of this container closure 1 ′ are shown more clearly.
  • the annular disk 31 which rests on the stop ridges 32 and the sealing plug 30 , is caused to bulge outward by the excess pressure originating in the storage container.
  • this causes a delivery gap to form between the sealing plug 30 and the annular disk 31 , through which the material to be dispensed is upwardly discharged.
  • the sealing plug 30 cannot follow the upward axial displacement of the annular disk 31 , since upward axial displacement is prevented by the pin-like stop ridge 33 , which is rigidly connected with the housing 5 ′ by the support legs 34 .
  • stop ridges 32 located below the annular disk 31 prevent the annular disk 31 from now being displaced axially downward or from bulging inward. Instead, the sealing plug 30 moves axially downward against the spring tension of the spring element 4 and thus opens a ventilation gap between the sealing plug 30 and the annular disk 31 , exactly the same as in the case of container closure 1 , and this causes material still present in the funnel-shaped dispenser mouth 35 to be sucked back into the storage container until pressure equalization has occurred.
  • the container closure shown in the illustrated embodiments is not the only possible design of a container closure in accordance with the invention.
  • the closure device of the invention can be varied within wide limits with respect to its dimensioning without deviating from the idea of the invention with its stated claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Cartons (AREA)
US10/509,860 2002-06-20 2003-06-17 Self-sealing container closure Abandoned US20050139620A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20209615.7 2002-06-20
DE20209615U DE20209615U1 (de) 2002-06-20 2002-06-20 Selbstabdichtender Behälterverschluss
PCT/EP2003/006374 WO2004000672A1 (fr) 2002-06-20 2003-06-17 Bouchon de contenant autoetancheifiant

Publications (1)

Publication Number Publication Date
US20050139620A1 true US20050139620A1 (en) 2005-06-30

Family

ID=27675262

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/509,860 Abandoned US20050139620A1 (en) 2002-06-20 2003-06-17 Self-sealing container closure

Country Status (8)

Country Link
US (1) US20050139620A1 (fr)
EP (1) EP1513734B1 (fr)
CN (1) CN100430303C (fr)
AT (1) ATE332850T1 (fr)
DE (2) DE20209615U1 (fr)
EA (1) EA005758B1 (fr)
ES (1) ES2265113T3 (fr)
WO (1) WO2004000672A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160185515A1 (en) * 2014-12-24 2016-06-30 Drink Saporé Inc. Liquid container apparatus
US20170107024A1 (en) * 2014-03-25 2017-04-20 Guala Pack S.P.A. Spout for flexible pouch with obturator device
WO2017125595A1 (fr) * 2016-01-22 2017-07-27 Rieke Packaging Systems Limited Fermetures de distribution et distributeurs
JP2018203307A (ja) * 2017-05-31 2018-12-27 株式会社吉野工業所 吐出容器
US20200306776A1 (en) * 2019-03-27 2020-10-01 The Fountainhead Group, Inc. Gravity powered sprayer
WO2020224893A1 (fr) * 2019-05-09 2020-11-12 Asml Netherlands B.V. Dispositif de guidage
JP2020189672A (ja) * 2019-05-23 2020-11-26 株式会社ベッセル・ジャパン エアーバックレス構造
CN114521185A (zh) * 2019-07-23 2022-05-20 里克包装系统有限公司 具有内部塞件密封的全聚合物泵分配器
US11518571B2 (en) 2018-05-23 2022-12-06 F. Holzer Gmbh Dispensing head and dispensing device for the metered dispensing of liquid preparations, and possible uses

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100484843C (zh) * 2006-07-28 2009-05-06 陈学办 一种旋转压缩开启并能自动关闭的瓶盖
JP6816911B1 (ja) * 2019-08-01 2021-01-20 株式会社辰巳菱機 負荷試験装置

Citations (7)

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Publication number Priority date Publication date Assignee Title
US4785978A (en) * 1987-03-02 1988-11-22 Japan Crown Cork Co., Ltd. Container closure provided with automatic opening-closing mechanism
US5197638A (en) * 1991-10-30 1993-03-30 Allergan, Inc. Self sealing product delivery system
US5273191A (en) * 1991-08-20 1993-12-28 Philip Meshberg Dispensing head for a squeeze dispenser
US5447258A (en) * 1992-06-17 1995-09-05 Yoshino Kogyosho Co., Ltd. Spout for liquid pump
US5803311A (en) * 1994-05-19 1998-09-08 Ing. Erich Pfeiffer Gmbh & Co Kg Bottle closure for squeezing bottle
US6145707A (en) * 1997-10-10 2000-11-14 L'oreal S.A. Dispensing head and a dispenser including the same
US6616012B2 (en) * 2001-07-27 2003-09-09 Richard C. G. Dark Fluid dispensing valve and method of use

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DE913874C (de) * 1951-11-01 1954-06-21 Rudolf Valtl Selbsttaetiger Tubenverschluss
DE932237C (de) * 1952-08-14 1955-08-25 Rudolf Valtl Selbsttaetiger Tubenverschluss
SE384662B (sv) * 1974-04-08 1976-05-17 B Nilson Sjelvstengande forslutning for forpackningar
GB1593084A (en) * 1977-06-24 1981-07-15 Metal Box Co Ltd Dispensing closures
DE8235857U1 (de) * 1982-12-21 1984-05-24 Wella Ag, 6100 Darmstadt Selbsttaetiger Verschluss fuer flexible Behaelter
US4739906A (en) * 1986-07-14 1988-04-26 Blairex Laboratories, Inc. Storage bottle for contact lens cleaning solution having a self closing valve assembly
DE9311684U1 (de) * 1993-08-05 1994-12-15 Wolff, Ernst, 33330 Gütersloh Verschluß für Behälter mit flüssigem oder pastenförmigem Inhalt
DE9403170U1 (de) * 1994-02-25 1994-06-16 Linneweber, Wolfgang, 33605 Bielefeld Selbstschließender Verschluß
FR2806705B1 (fr) * 2000-03-27 2002-05-03 Oreal Capsule de distribution et recipient equipe d'une telle capsule

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4785978A (en) * 1987-03-02 1988-11-22 Japan Crown Cork Co., Ltd. Container closure provided with automatic opening-closing mechanism
US5273191A (en) * 1991-08-20 1993-12-28 Philip Meshberg Dispensing head for a squeeze dispenser
US5197638A (en) * 1991-10-30 1993-03-30 Allergan, Inc. Self sealing product delivery system
US5447258A (en) * 1992-06-17 1995-09-05 Yoshino Kogyosho Co., Ltd. Spout for liquid pump
US5803311A (en) * 1994-05-19 1998-09-08 Ing. Erich Pfeiffer Gmbh & Co Kg Bottle closure for squeezing bottle
US6145707A (en) * 1997-10-10 2000-11-14 L'oreal S.A. Dispensing head and a dispenser including the same
US6616012B2 (en) * 2001-07-27 2003-09-09 Richard C. G. Dark Fluid dispensing valve and method of use

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170107024A1 (en) * 2014-03-25 2017-04-20 Guala Pack S.P.A. Spout for flexible pouch with obturator device
US20160185515A1 (en) * 2014-12-24 2016-06-30 Drink Saporé Inc. Liquid container apparatus
US9573752B2 (en) * 2014-12-24 2017-02-21 Drink Saporé Inc. Liquid container apparatus
WO2017125595A1 (fr) * 2016-01-22 2017-07-27 Rieke Packaging Systems Limited Fermetures de distribution et distributeurs
US10717565B2 (en) 2016-01-22 2020-07-21 Rieke Packaging Systems Limited Dispensing closures and dispensers
JP2018203307A (ja) * 2017-05-31 2018-12-27 株式会社吉野工業所 吐出容器
US11518571B2 (en) 2018-05-23 2022-12-06 F. Holzer Gmbh Dispensing head and dispensing device for the metered dispensing of liquid preparations, and possible uses
US20200306776A1 (en) * 2019-03-27 2020-10-01 The Fountainhead Group, Inc. Gravity powered sprayer
WO2020224893A1 (fr) * 2019-05-09 2020-11-12 Asml Netherlands B.V. Dispositif de guidage
US11947264B2 (en) 2019-05-09 2024-04-02 Asml Netherlands B.V. Guiding device
JP2020189672A (ja) * 2019-05-23 2020-11-26 株式会社ベッセル・ジャパン エアーバックレス構造
CN114521185A (zh) * 2019-07-23 2022-05-20 里克包装系统有限公司 具有内部塞件密封的全聚合物泵分配器

Also Published As

Publication number Publication date
ATE332850T1 (de) 2006-08-15
EP1513734B1 (fr) 2006-07-12
EA200401321A1 (ru) 2005-02-24
CN100430303C (zh) 2008-11-05
EA005758B1 (ru) 2005-06-30
WO2004000672A1 (fr) 2003-12-31
CN1662424A (zh) 2005-08-31
EP1513734A1 (fr) 2005-03-16
DE50304238D1 (de) 2006-08-24
DE20209615U1 (de) 2003-07-31
ES2265113T3 (es) 2007-02-01

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Legal Events

Date Code Title Description
AS Assignment

Owner name: RPC WIKO GMBH & CO. KG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HEUKAMP, WOLFGANG;REEL/FRAME:016382/0760

Effective date: 20040822

STCB Information on status: application discontinuation

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