EP0451257B1 - Behälter mit verbessertem verschluss - Google Patents

Behälter mit verbessertem verschluss Download PDF

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Publication number
EP0451257B1
EP0451257B1 EP90916959A EP90916959A EP0451257B1 EP 0451257 B1 EP0451257 B1 EP 0451257B1 EP 90916959 A EP90916959 A EP 90916959A EP 90916959 A EP90916959 A EP 90916959A EP 0451257 B1 EP0451257 B1 EP 0451257B1
Authority
EP
European Patent Office
Prior art keywords
neck portion
gasket
container
closure cap
sealing lip
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
EP90916959A
Other languages
English (en)
French (fr)
Other versions
EP0451257A4 (en
EP0451257A1 (de
Inventor
Michael J. Finley
Thomas A. Fowles
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.)
Baxter International Inc
Original Assignee
Baxter International 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 Baxter International Inc filed Critical Baxter International Inc
Publication of EP0451257A1 publication Critical patent/EP0451257A1/de
Publication of EP0451257A4 publication Critical patent/EP0451257A4/en
Application granted granted Critical
Publication of EP0451257B1 publication Critical patent/EP0451257B1/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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck

Definitions

  • the present invention relates to containers in general and to sealing closures for containers in particular.
  • Many medical liquids such as sterile water, saline solution, electrolyte solution and the like, are packaged in containers which dispense the liquid by simply pouring out the contents, as opposed to, for example, intravenous administration.
  • Such pour-type dispensers are typically referred to as pour bottles.
  • Such pour-type dispensing of medical liquids is utilized, for example, in operating rooms or for emergency site wound irrigation and the like.
  • plastic bottles have been utilized as a low cost container for such pour-type dispensing.
  • Such bottles typically include a body portion in which the contents are stored and a neck portion which threadingly secures a screw-cap type closure.
  • Such bottles provide convenient access to the contents by simply removing the cap, usually in a counterclockwise rotation to open the bottle and pour.
  • the contents of the bottle must be provided sterile and stored isolated from possible airborne contaminants such as bacteria.
  • the bottle closures are provided sealed against the outside environment.
  • this seal is provided by addition of a gasket between the lower rim of the closure cap and a rim provided on the neck of the bottle.
  • An additional seal can also be provided by providing a gasket in the interior surface of the top of the closure cap to seal against the upper or pouring lip of the neck of the bottle.
  • US-A-4712699 and GB-A-875529 disclose a sleeve projecting into the interior of the cap from the top wall of the cap, the sleeve engaging the inside of the container neck to form a seal. These documents do not disclose the use of a gasket.
  • the present invention provides a container having an improved closure as defined in claim 1, which avoids the drawbacks of prior art.
  • the pre-characterising part of claim 1 is based on US-A-4712699, and the distinguishing features of the present invention are set out in the characterising part of claim 1.
  • a container made in accordance with the principles of the present invention is seen.
  • This embodiment is a one-piece, hermetically sealed plastic container 10 having a body portion 12 and a neck portion 14.
  • a closure cap 16 is provided as a separate attachable element.
  • the container 10 contents are stored in the body portion 12.
  • the body portion 12 narrows at its upper periphery to form neck portion 14.
  • Closure cap 16 and neck portion 14 each provide cooperating threaded members so that closure cap 16 can be threadedly connected to neck portion 14.
  • the container of the present invention can be made of any material suitable for storage of medical fluids. Such material is preferably drug compatible and autoclavable. In the preferred embodiment the material is a rigid plastic material that is capable of blow molding or injection molding such as polyethylene or polypropylene. Additionally, while the container 10 and closure cap 16 can be made of different materials, such as, for example, a glass container and plastic closure cap, the container 10 and closure cap 16 are preferably formed of the same material.
  • the neck portion 14 of the device of Figure 1 is seen in detail.
  • the body portion 12 narrows into and forms a cylindrical neck portion 14 having an interior surface 11 and an exterior surface 13.
  • the terminal end of the neck portion 14 defines a pouring lip 18.
  • Contained on the exterior surface 13 of the neck portion 14 is a threaded portion which has a standard thread 20 formed to permit clockwise tightening of the closure cap 16.
  • Below the threaded portion is an expanded diameter flange 22 which enhances structural integrity and retains a gasket 30 in place.
  • a radially outwardly extending shoulder portion 24 which includes an optional circumferential groove 26 defined therein.
  • the circumferential groove 26 reduces the amount of material needed in forming the container without substantially sacrificing structural integrity.
  • the circumferential groove 26 can be utilized to support the container 10 by a correspondingly designed support.
  • the outwardly extending shoulder portion 24 includes at its upper periphery a generally flat shelf member 28 which extends generally perpendicularly from the longitudinal axis of neck portion 14. Resting on shelf member 28 is gasket 30 which acts in cooperation with closure cap 16 to form a seal, as will be discussed in detail below.
  • Gasket 30 is preferably made of a material which has good sealing qualities such as silicone rubber or the like.
  • the closure cap 16 includes a continuous cylindrical side wall 36 having an interior surface 39, an exterior surface 40 and a lower rim 43.
  • a top wall 38 is also provided joined to the side wall 36 to form a cap-like structure.
  • the presently described embodiment includes at the center of the top wall 38 an interiorly extending dimple 35.
  • the side wall 36 outer surface 40 is buckled or knurled to help the user in gripping the closure cap 16 (as best seen in FIGURE 2).
  • the side wall 36 inner surface 39 includes a threaded portion which has a cooperating standard thread 41 to engage the thread 20 of the neck portion 14.
  • the gasket 30 is contained on the shelf member 28 of shoulder portion 24 of neck portion 14.
  • the gasket 30 seals against shelf member 28 and the closure cap 16 lower rim 43 when the closure cap 16 is secured on the container 10.
  • the lower rim 43 of the closure cap 16 includes an inner contact ring 45 which presses against gasket 30 to form a first seal.
  • the lower rim 43 further includes an outer ring member 42 which extends downwardly a distance greater than the inner contact ring 45 and has an inner diameter larger than the gasket 30.
  • a second seal is provided.
  • an internally extending hollow conical sealing lip 50 having an exterior surface 52 and an interior surface 54 is provided which seals against the inner surface 11 of neck portion 14.
  • the internally extending hollow conical sealing member 50 is integrally formed with the closure cap 16.
  • the exterior surface 52 of sealing lip 50 is the contact surface which forms a seal against the interior surface 13 of neck portion 14.
  • the contact surface 52 of the sealing lip 50 is tapered inwardly. As a result of this taper, as the closure cap 16 is tightened on the neck portion 14 by the threads 20 and 41, the sealing lip 50 comes into contact with the interior surface 11 of neck portion 14. In the preferred embodiment, the sealing lip 50 comes into contact with the inner surface 11 of neck portion 14 just as contact ring 45 comes into contact with gasket 30. As the closure cap 16 is tightened, contact ring 45 tightens into gasket 30 while the taper on the sealing lip contact surface 52 compresses the sealing lip 50 against the inner surface 11 of the neck portion 14.
  • the inner surface 11 of neck portion 14 is also tapered to further facilitate sealing.
  • the taper on the sealing lip contact surface 52 is greater than the taper on the inner surface 11 of the neck portion 14.
  • the degree of taper of the contact surface is preferably within 20% of 0.05"/in/side.
  • the inner surface 111 of neck portion 114 is not. Rather, the inner surface 111 of neck portion 114 includes a reduced diameter portion 58. Provided between the inner surface 111 and the reduced diameter portion 58 is a conical step 60. The diameters of the inner surface 111 and reduced diameter portion 58 are provided such that the sealing lip always is in contact with one of the surfaces. This alternative embodiment is particularly suited when manufacturing processes and materials utilized in forming the container 110 result in large tolerances on the inner surface 111 of the neck portion 114.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Claims (9)

  1. Kombination aus Verschlußkappe und Behälter,
    wobei der Behälter (10) einen Halsbereich (14, 114) aufweist, dessen Ende eine Gießlippe (18, 118) bildet, wobei der Halsbereich einen sich radial nach außen erstreckenden Schulterbereich (24, 124) und ein Schraubgewinde (20, 120) an seiner Außenoberfläche (13, 113) aufweist, das oberhalb des Schulterbereiches angeordnet ist,
    wobei die Verschlußkappe (16, 116) eine obere Wand (38, 138) und eine Seitenwand (36, 136) aufweist, welche sich ausgehend von der oberen Wand nach unten erstreckt, wobei die Seitenwand ein inneres Schraubgewinde (41, 141) aufweist, welches mit dem Gewinde (20, 120) des Halsbereiches (14, 114) des Behälters (10) zusammenwirkt, und wobei die Seitenwand (36, 136) einen unteren Rand (43, 143) an ihrem unteren Umfang aufweist,
    gekennzeichnet durch
    eine elastische Dichtung (30, 130), welche über dem Schulterbereich (24, 124) des Behälters (10) liegt;
    wobei der untere Rand (43, 143) einen inneren Ring (45, 145) und einen äußeren Ring (42, 142) aufweist, welcher sich über eine größere Strecke als der innere Ring nach unten erstreckt, wobei die Dichtung unter dem inneren Ring (45, 145) liegt, wenn die Kappe (16, 116) sich auf dem Halsbereich des Behälters befindet, derart, daß der innere Ring die Dichtung (30, 130) in axialer Richtung zusammendrückt, wenn die Kappe nach unten auf den Halsbereich (14, 114) aufgeschraubt wird, wobei der äußere Ring (42, 142) die Dichtung (30, 130) umschließt, wenn der innere Ring (45, 145) mit der Dichtung in Kontakt kommt, so daß dann, wenn der innere Ring die Dichtung in axialer Richtung zusammendrückt, eine resultierende horizontale Ausdehnung der Dichtung bewirkt, daß die Dichtung sowohl gegen den äußeren Ring (42, 142) als auch gegen die äußere Fläche (13, 113) des Halsbereiches (14, 114) andrückt.
  2. Vorrichtung nach Anspruch 1,
    welche ferner eine Dichtlippe (50, 150) aufweist, welche sich von der oberen Wand (38, 138) der Verschlußkappe aus nach unten erstreckt, wobei die Dichtlippe mit einer inneren Oberfläche (11, 111) des Halsbereiches (14, 114) in Kontakt bringbar ist, um eine Abdichtung zu bewirken, wenn die Verschlußkappe auf den Halsbereich (14) des Behälters aufgeschraubt wird.
  3. Vorrichtung nach Anspruch 2,
    wobei die Dichtlippe (50, 150) sich nach innen verjüngend ausgebildet ist, um die Abdichtung mit der inneren Oberfläche (11, 111) des Halsbereiches (14, 114) zu erleichtern.
  4. Vorrichtung nach Anspruch 2 oder 3,
    wobei die innere Oberfläche (11) des Halsbereiches (14) sich nach außen verjüngend ausgebildet ist, um die Abdichtung mit der Dichtlippe (50) zu erleichtern.
  5. Vorrichtung nach Anspruch 2 oder 3,
    wobei die innere Oberfläche (111) des Halsbereiches (114) stufenförmig ausgebildet ist, um die Abdichtung mit der Dichtlippe (150) zu erleichtern.
  6. Vorrichtung nach einem der vorhergehenden Ansprüche,
    wobei der Behälter ein medizinischer Behälter ist und der Behälter (10), die Verschlußkappe (16, 116) und die Dichtung (30, 130) aus arzneimittel-verträglichem, im Autoklaven einsetzbarem Material bestehen.
  7. Vorrichtung nach einem der vorhergehenden Ansprüche,
    wobei die elastische Dichtung (30, 130) aus Silikongummi besteht.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche,
    welche ferner einen Flansch (22, 122) aufweist, der sich von der Außenoberfläche (13, 113) des Halsbereiches (14, 114) des Behälters radial nach außen erstreckt, wobei der Flansch sich zwischen dem Gewindebereich (20, 120) und dem Schulterbereich (24, 124) befindet und wobei die Dichtung zwischen dem Schulterbereich und dem Flansch dazwischengesetzt ist.
  9. Vorrichtung nach einem der Ansprüche 2 bis 5,
    wobei die Dichtlippe (50, 150) integral mit der oberen Wand ausgebildet ist.
EP90916959A 1989-11-02 1990-10-30 Behälter mit verbessertem verschluss Expired - Lifetime EP0451257B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US43100189A 1989-11-02 1989-11-02
US431001 1989-11-02
PCT/US1990/006300 WO1991006484A1 (en) 1989-11-02 1990-10-30 Container having improved closure

Publications (3)

Publication Number Publication Date
EP0451257A1 EP0451257A1 (de) 1991-10-16
EP0451257A4 EP0451257A4 (en) 1993-09-29
EP0451257B1 true EP0451257B1 (de) 1995-11-29

Family

ID=23710007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90916959A Expired - Lifetime EP0451257B1 (de) 1989-11-02 1990-10-30 Behälter mit verbessertem verschluss

Country Status (5)

Country Link
EP (1) EP0451257B1 (de)
AU (1) AU639958B2 (de)
CA (1) CA2044158A1 (de)
NO (1) NO304017B1 (de)
WO (1) WO1991006484A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6371319B2 (en) 1997-09-22 2002-04-16 Abbott Laboratories Closure system for containers
US7097061B2 (en) * 2003-08-14 2006-08-29 Graham Packaging Pet Technologies Inc. Plastic container which is hot-fillable and/or having neck finish adapted for receipt of handle
CN2844032Y (zh) * 2005-04-22 2006-12-06 叶智 一种旋盖式瓶盖结构
JP7163579B2 (ja) * 2018-01-10 2022-11-01 凸版印刷株式会社 包装容器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US441833A (en) * 1890-12-02 Watch-case spring
US198528A (en) * 1877-12-25 Improvement in fruit-jars
US1854451A (en) * 1928-12-13 1932-04-19 American Crayon Co Closure for collapsible tubes
GB875529A (en) * 1957-07-25 1961-08-23 Dennis Harold Ward A new or improved closure for containers
US4177905A (en) * 1978-06-05 1979-12-11 Baxter Travenol Laboratories, Inc. Closure system for containers
US4418833A (en) * 1981-12-14 1983-12-06 Landis Plastics Inc. Large volume container with gasketless seal
US4712699A (en) * 1986-10-02 1987-12-15 Captive Plastics, Inc. Package employing unique seal

Also Published As

Publication number Publication date
CA2044158A1 (en) 1991-05-03
NO912579L (no) 1991-07-01
AU6725290A (en) 1991-05-31
AU639958B2 (en) 1993-08-12
EP0451257A4 (en) 1993-09-29
NO304017B1 (no) 1998-10-12
WO1991006484A1 (en) 1991-05-16
EP0451257A1 (de) 1991-10-16
NO912579D0 (no) 1991-07-01

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