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
  • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
  • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
• • 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
  • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
  • B65D47/103—Membranes with a tearing element
• • 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
  • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
  • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
  • B65D51/22—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure
  • B65D51/228—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing having means for piercing, cutting, or tearing the inner closure a major part of the inner closure being removed from the container after the opening
• • 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
  • B65D2251/00—Details relating to container closures
  • B65D2251/0003—Two or more closures
  • B65D2251/0006—Upper closure
  • B65D2251/0025—Upper closure of the 47-type
• • 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
  • B65D2251/00—Details relating to container closures
  • B65D2251/0003—Two or more closures
  • B65D2251/0068—Lower closure
  • B65D2251/009—Lower closure of the 51-type

Definitions

• the present invention relates generally to a ring pull and more particularly to a ring pull for a closure, such as a plastics flip-top closure.
• a ring pull sub-assembly for a closure comprising: a body which is attachable to a closure; and a ring pull member comprising a base which is connected to the body and a ring pull which extends from the base.
• the present invention therefore provides a separate ring pull sub-assembly which can be fitted to a closure to provide it with a ring pull system.
• the body could be described as a ring pull support body for holding the ring pull in the closure.
• the ring pull arrangement can provide a tamper-evident system for a closure, with irreversible lifting of the ring pull base away from the body and/or removal of the sub-assembly from the closure.
• the base may be at least partly frangibly connected to the body so that it can be partially or completely removed.
• the base is frangibly and hingedly connected to a support disc forming part of the body. When the ring pull is lifted the base is ripped away from the disc so that it is just connected by the hinge. Because the base is in a lifted position this serves as a tamper-evident feature.
• the body may include snap-fit engagement means for attachment to a closure. In some embodiments the sub-assembly can be snapped into the closure from underneath. Other forms of engagement are, of course, possible.
• the body may be removably attachable to a closure.
• the sub- assembly can be removed from the closure after it has been fitted.
• at least part of the sub-assembly may be permanently fixed into the closure.
• the entire sub-assembly is detachable from the closure in use. In alternative embodiments at least part of the sub-assembly is retained in the closure on opening, with the ring pull component being partly or completely removable.
• the sub-assembly may itself close an aperture in a container in use. Removal of the ring pull alone then allows direct access to the container contents.
• the body may include a deformable section which, in use, deforms to assist removal of the whole or a part of the sub-assembly from the closure.
• the body may comprise a peripheral annulus which includes closure engagement means.
• the body comprises a support hoop with engagement means extending around its periphery.
• the body and the ring pull member may be formed as a one-piece construction, for example by injection moulding.
• the sub-assembly may be formed from low density polyethylene. This material has advantages for the formation of ring pull arrangements.
• the present invention also provides a closure comprising means for attachment to a container and means for receiving a ring pull sub-assembly as described herein.
• the closure may comprise a base and a lid which are hingedly connected together.
• the closure may be formed from polypropylene.
• a polypropylene closure is combined with a low density polyethylene sub-assembly.
• the present invention also provides a container with a closure as described herein.
• Figure 1 is a section of a ring pull sub-assembly formed according to an embodiment of the present invention
• Figure 2 is a plan view of the sub-assembly of Figure 1 ;
• Figure 3 is a perspective view of the sub-assembly shown in Figures 1 and 2 with a base pictured in an open position;
• Figure 4 is a section of a closure ready to receive a sub-assembly of the type shown in Figures 1 and 2;
• Figure 5 is a section of the closure and sub-assembly of Figure 4 shown fitted together;
• Figure 6 is a section showing the closure of Figure 5 fitted to a container with the closure in an open position and the ring pull base in an open position;
• Figure 7 shows the arrangement of Figure 6 with the ring pull further lifted so that the sub-assembly body is deformed to allow removal
• Figure 8 shows the arrangement of Figure 7 with the sub-assembly completely removed.
• the sub-assembly 10 comprises a ring pull member 20 and a body 30.
• the ring pull member 20 comprises a ring pull 22 and a base 24.
• the body 30 comprises an annular support hoop 32 from which at one end depends an inclined annular support skirt 34.
• the support skirt 34 extends around the periphery of a central disc 36.
• the base 24 of the ring pull member 20 is formed in the disc 36 as shown best in Figure 2.
• the base 24 is generally coffin-shape and effectively forms part of the disc 36.
• the shape of the base 24 is defined by a fixed hinge line 25 and a line of weakness 26 which is formed by any convenient means such as a thinning of material or scoring.
• the ring pull 22 comprises two spaced stalks 23a which extend from the end of the base opposite the hinge line and are joined together by a semi-circular hoop 23b which extends perpendicular to the stalks towards the hinge 25.
• the body 30 comprises a flange 38 and a retaining bead 40 which define between them a recess 42.
• FIG. 3 the sub-assembly 10 is shown with the base 24 torn away from the disc 36 along the line of weakening 26.
• the base 24 pivots along the hinge 25 as it is lifted by the ring pull 22.
• the base 24 cannot return to the position shown in Figures 1 and 2 and therefore serves as a tamper-evident feature discussed in more detail below.
• FIG. 4 there is shown a closure 50 formed in accordance with the present invention together with the sub-assembly 10 of Figures 1 to 3.
• the closure 50 comprises a base 52 and a lid 54 which are hingedly connected together by a hinge 56 to form a flip-top closure.
• the base 52 comprises a central cylindrical body 58 which is open at both ends.
• One end of the body 58 is angled and includes an outwardly flared flange 60 to produce a spout.
• the other end of the body 58 terminates with a radially inwardly extending retention flange 62.
• an intermediate cylindrical wall 64 extends and terminates with a retention bead 66.
• a further outer cylindrical wall 68 extends radially outwardly of the intermediate wall 64.
• the lid 54 comprises a generally circular top plate 70 from which depends a cylindrical outer wall 72. Radially inwardly of the outer wall 73 a sealing cylinder 74 depends from the top plate 70 and is sized and shaped to fit into the cylindrical body 58 of the base 52.
• the sealing cylinder 74 and the cylindrical body 58 have cooperating 74a, 58a beads which allow the lid 54 to be clipped onto the base (best seen in Figure 5) to hold the lid in position in the closed position.
• FIG 5 the sub-assembly 10 is shown fitted into the closure 50. The sub-assembly 10 is fitted from beneath the closure 50 by pushing the retaining bead 40 against the retention flange 62.
• the bead 40 and flange 62 deform to allow the bead 40 to pass over the flange 62 so that the flange 62 is seated in the recess 42.
• the ring pull 22 extends into the space defined by the sealing wall 74 and the cylindrical body 58.
• FIG. 6 the closure 50 fitted with the sub-assembly 10 is shown fitted to a container 80.
• the container 80 includes an orifice defined by a bead 82.
• the container bead 82 is received between the intermediate wall 64 and the central wall 58 of the closure 50 so that the retention bead 66 clips underneath to retain the closure firmly in position.
• the lid 54 is shown hinged to the open position to expose the ring pull 22.
• the ring pull 22 has been pulled to lift the base 24 to the raised position also shown in Figure 3.
• the deformed regions of the sub-assembly 10 remain deformed and the base 24 remains lifted away from the central disc 38 as evidence that the sub-assembly has been removed at least once from the closure 50. This provides visual evidence that the sub-assembly has been removed from the closure to prevent re-insertion. Furthermore, the body flange 32 cannot be pushed down over the closure flange 62 so that the sub-assembly 10 cannot be introduced into the closure 50 from above, which prevents re-insertion of the sub-assembly with the closure fitted to the container.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)
• Cartons (AREA)
• Basic Packing Technique (AREA)
• Dowels (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=37899194

Family Applications (1)

Country Status (4)

Cited By (1)

Citations (6)

• 2007
  • 2007-02-13 GB GBGB0702720.4A patent/GB0702720D0/en not_active Ceased
• 2008
  • 2008-01-24 WO PCT/GB2008/000257 patent/WO2008099135A1/en not_active Ceased
  • 2008-01-24 AT AT08701930T patent/ATE548288T1/de active
  • 2008-01-24 EP EP08701930A patent/EP2111361B1/de active Active

Patent Citations (6)

Also Published As

Similar Documents

Legal Events