EP1125853A1 - Ausgabeverschluss - Google Patents

Ausgabeverschluss Download PDF

Info

Publication number
EP1125853A1
EP1125853A1 EP00300954A EP00300954A EP1125853A1 EP 1125853 A1 EP1125853 A1 EP 1125853A1 EP 00300954 A EP00300954 A EP 00300954A EP 00300954 A EP00300954 A EP 00300954A EP 1125853 A1 EP1125853 A1 EP 1125853A1
Authority
EP
European Patent Office
Prior art keywords
spout
closure
sealing
dispensing
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
EP00300954A
Other languages
English (en)
French (fr)
Other versions
EP1125853B1 (de
Inventor
James Mitchell Paterson
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.)
Crown Packaging Technology Inc
Original Assignee
Crown Cork and Seal Technologies Corp
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 Crown Cork and Seal Technologies Corp filed Critical Crown Cork and Seal Technologies Corp
Priority to EP00300954A priority Critical patent/EP1125853B1/de
Priority to AT00300954T priority patent/ATE263074T1/de
Priority to DE60009440T priority patent/DE60009440D1/de
Publication of EP1125853A1 publication Critical patent/EP1125853A1/de
Application granted granted Critical
Publication of EP1125853B1 publication Critical patent/EP1125853B1/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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/065—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with hinged, foldable or pivotable spouts
    • B65D47/066—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with hinged, foldable or pivotable spouts the spout being either flexible or having a flexible wall portion, whereby the spout is foldable between a dispensing and a non-dispensing position

Definitions

  • the present invention relates to an improvement to dispensing closures having an end plate, a peripheral side wall depending from the end plate and a spout, which is arranged to pivot between a closed position, where the spout lies flush with the end plate, and an open position, where the spout projects at right angles to the end plate.
  • the invention relates to a sealing improvement for one-piece, dispensing closures having a pivotable spout.
  • the spout is connected to the remainder of the closure via a flexible membrane which is designed to invert as the spout is pivoted to its open position.
  • the closure is moulded as a single piece with the spout in its open position and is subsequently closed prior to attaching to a container.
  • US 4,440,327 describes a dispensing closure comprising a body with a spout pivotably mounted on the body and connected thereto by a flexible membrane.
  • the flexible membrane has a concave configuration when the spout is in its closed position but inverts to a convex configuration when the spout is opened. In its closed configuration, the spout fits into a recess in the closure end plate.
  • the spout is sealed by abutment of the dispensing orifice, at one end of the spout, against the closure side-wall and by abutment of a sealing skirt, at the other end of the spout, against a sealing surface which projects from the body of the closure.
  • a latch is provided between the spout and closure body.
  • a tear off cover may be provided to prevent the ingress of dirt into the spout and also to provide an indication of whether the closure has been opened i.e. to provide tamper evidence. Once the cover is removed, there is no abutment surface to provide the necessary reaction force to form a seal at the sealing skirt end of the spout.
  • the aim of the present invention is to provide a leakproof seal between the sealing skirt on the spout and the sealing surface on the closure body, without relying on an abutment surface at the dispensing end of the spout. It is not possible to obtain the necessary sealing force simply by increasing the length of the sealing skirt on the spout, to provide more pressure against the body sealing surface. When the length of the sealing skirt is increased, its leading edge tends to get damaged by the closing action of the spout, causing even greater leakage.
  • the present invention provides a one-piece dispensing closure comprising
  • the required distortion of the closure can be most easily achieved by arranging two cams on a line which is orthogonal to the central axis of the spout (looking at the end plate of the closure).
  • the degree of distortion is dependant upon the flexibility of the closure, the material used, the dimension of the cam or cams and the tolerance of the neck of the container where the cam or cams contact.
  • 2 cams are provided on the internal surface of the closure (just above the threads or snap beads used to hold the closure on the container).
  • the cams are located opposite one another on a chord running orthogonal to the central axis of the spout. This arrangement ensures that the distortion of the cap is symmetrical on either side of the spout and prevents the closure from tilting on the container.
  • the cams are arranged across the diameter of the closure at 90° to the central axis of the spout to ensure that the ovality induced in the closure, when the cams contact the container neck, is square to the sealing faces provided on the spout and the body.
  • the present invention provides enhanced sealing performance for a one-piece dispensing closure 1 comprising a body 2, having an end plate 3 with a peripheral side wall 4 depending therefrom, and a spout 5, which is pivotable between open and closed positions about a main hinge axis 6.
  • the spout 5 is joined to the remainder of the closure body 2 via a flexible membrane 7 which is adapted to invert as the spout 5 is opened.
  • a recess 8 is provided in the side-wall 4 of the closure and is arranged to receive the spout 5 when it is in its closed position, thus allowing the spout 5 to lie flush with the end plate 3 of the closure.
  • a latch (not shown) may be provided on the side-wall of the recess 8, to hold the spout 5 in its closed position.
  • the spout 5 has a dispensing aperture 51 at one end (distant from the main hinge axis 6) and a sealing skirt 52 at the other end (adjacent to the main hinge axis 6).
  • a sealing plate 21 is defined by the body 2 and is arranged to provide a surface against which the sealing skirt 52 abuts when the spout 5 is in its closed position, forming a fluid tight seal.
  • the closure body 2 also has two cam surfaces 22, which are arranged on the internal surface 41 of the side-wall 4. As shown in Figs. 3 and 4, the cam surfaces 22 are positioned so that they contact the neck of a container 9 and are located opposite one another on a chord X-X which is orthogonal to the central axis of the spout Y-Y. The axis Y-Y passes through the centre of the sealing skirt 52 and the sealing plate 21. The cam surfaces 22 are forced outwards by the container neck 9 (as indicated by the arrows in Figs.
  • the closure described in the specific embodiment has a round profile.
  • the closure may take a different shape, the only limitation being that the shape should allow the closure to distort in the manner described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Beans For Foods Or Fodder (AREA)
EP00300954A 2000-02-08 2000-02-08 Ausgabeverschluss Expired - Lifetime EP1125853B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP00300954A EP1125853B1 (de) 2000-02-08 2000-02-08 Ausgabeverschluss
AT00300954T ATE263074T1 (de) 2000-02-08 2000-02-08 Ausgabeverschluss
DE60009440T DE60009440D1 (de) 2000-02-08 2000-02-08 Ausgabeverschluss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00300954A EP1125853B1 (de) 2000-02-08 2000-02-08 Ausgabeverschluss

Publications (2)

Publication Number Publication Date
EP1125853A1 true EP1125853A1 (de) 2001-08-22
EP1125853B1 EP1125853B1 (de) 2004-03-31

Family

ID=8172688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00300954A Expired - Lifetime EP1125853B1 (de) 2000-02-08 2000-02-08 Ausgabeverschluss

Country Status (3)

Country Link
EP (1) EP1125853B1 (de)
AT (1) ATE263074T1 (de)
DE (1) DE60009440D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2422372A (en) * 2005-01-29 2006-07-26 Garry Ritchie Gravity dispenser for fluid

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440327A (en) 1981-01-26 1984-04-03 Dark Richard C G Fluid dispensing closure with integral valve
US4887747A (en) * 1988-06-08 1989-12-19 Seaquist Closures, A Division Of Pittway Corporation Two-piece, snap-action closure
US5392968A (en) * 1993-06-14 1995-02-28 Dark; Richard C. G. Dispensing closure and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440327A (en) 1981-01-26 1984-04-03 Dark Richard C G Fluid dispensing closure with integral valve
US4887747A (en) * 1988-06-08 1989-12-19 Seaquist Closures, A Division Of Pittway Corporation Two-piece, snap-action closure
US5392968A (en) * 1993-06-14 1995-02-28 Dark; Richard C. G. Dispensing closure and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2422372A (en) * 2005-01-29 2006-07-26 Garry Ritchie Gravity dispenser for fluid

Also Published As

Publication number Publication date
ATE263074T1 (de) 2004-04-15
DE60009440D1 (de) 2004-05-06
EP1125853B1 (de) 2004-03-31

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