GB2027664A - A Tear-open Container Closure - Google Patents

A Tear-open Container Closure Download PDF

Info

Publication number
GB2027664A
GB2027664A GB7910685A GB7910685A GB2027664A GB 2027664 A GB2027664 A GB 2027664A GB 7910685 A GB7910685 A GB 7910685A GB 7910685 A GB7910685 A GB 7910685A GB 2027664 A GB2027664 A GB 2027664A
Authority
GB
United Kingdom
Prior art keywords
body portion
closure means
container
tear
closure
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.)
Withdrawn
Application number
GB7910685A
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.)
Officemax Inc
Original Assignee
Boise Cascade 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 Boise Cascade Corp filed Critical Boise Cascade Corp
Publication of GB2027664A publication Critical patent/GB2027664A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
    • B65D77/2028—Means for opening the cover other than, or in addition to, a pull tab
    • B65D77/2032—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container
    • B65D77/2044—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure
    • B65D77/2048—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut
    • B65D77/2056—Means for opening the cover other than, or in addition to, a pull tab by peeling or tearing the cover from the container whereby a layer of the container or cover fails, e.g. cohesive failure whereby part of the container or cover has been weakened, e.g. perforated or precut the cover being weakened
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/22—Details
    • B65D77/30—Opening or contents-removing devices added or incorporated during filling or closing of containers
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2025—Multi-layered container, e.g. laminated, coated
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041—Pull tabs
    • B65D2577/205—Pull tabs integral with the closure
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2075—Lines of weakness or apertures
    • B65D2577/2091—Lines of weakness or apertures in cover

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)

Description

SPECIFICATION Patch Top Closure Means The use of membrane type closures for a container is well known in the patented prior art, as evidenced, for example, by the patents to Stec No. 3,434,651 and Christensson No. 3,776,450. In the Serritella Patent No. 3,800,999, a disposable lid is disclosed containing score lines that define a removable portion for access to the interior of a container, and the Beckers Patent No. e,942,676 discloses a foil closure member containing a removable portion. One problem of the known patch top closure members is that of accurately removing only a predetermined portion of the closure member, whereby a dispensing opening of desired size and configuration will be defined in the residual portion of the closure member which remains mounted on the container end. Thus, in the case of certain composite containers designed to hold granular materials, such as salt, sugar, instant coffee or the like, it may be desired to provide an access opening of a size to permit the introduction of a spoon within the container, the edge of the opening being flat to serve as means against which the spoon is scraped to level the removed contents in the bowl portion of the spoon.In other instances, it may be desired to define a pour opening of a desired configuration in the patch top closure member through which granular container contents are poured in a controlled manner, or, in the case of relatively large container contents such as croutons, to provide a relatively large dispensing opening. A further problem is that of preventing peeling of the residual portion of the patch top from the container during the removal of the pull tab and removable portions. The present invention was developed to avoid the above and other drawbacks of the known membrane-type closure members. The primary object of the present invention is to provide an improved patch top closure member for composite containers or the like including a body portion mounted on the open end of a container, a pull tab portion connected with the peripheral edge of the body portion, and means including at least one first cut, notch, slot or the like contained in the juncture between the body and tab portions for defining in the body portion a predetermined removable portion, whereby a dispensing opening of desired size and configuration is formed in the residual body portion that remains mounted on the container after the pull tab and removable body portions have been torn away.
first embodiment. In accordance with a more specific object of the invention, a cut, slot or notch is provided in at least one juncture between the tab and body portions for initiating the tearing of the tab and removable body portions from the residual body portion. In the preferred embodiment, a single tear-initiating cut is provided in a juncture between symmetrically or asymmetrically arranged pull tab and body portions, which pull tab is pulled laterally to tear the pull tab and removable portions from the residual body openings. In this embodiment, the body portion may include a depending annular skirt portion that is connected with the reversely outwardly folded end portion of the container member. In a second embodiment, the pull tab and body portions are symmetrically arranged to define a pair of junctures each of which contains a tearinitiating cut.In this second embodiment, the tab portion is pulled upwardly to tear the removable portion away from the residual body portion along converging lines of tear. In this embodiment, the closure member is generally planar and normally does not include the annular skirt portion of the In accordance with another object of the invention, the body portion of the closure member may contain one or more scorelines that more accurately define the line or lines of tear. According to a further object of the invention, the peripheral edge of the body portion may contain a second cut or notch at the other end of the line of tear from the tear-initiating cut, thereby to prevent peeling of the residual body portion of the closure member from the container. A further object of the invention is to provide a closure member of the type described above including a protective synthetic plastic overcap member which, when the pull tab portion is bent downwardly, is fitted upon the outwardly reversely folded end portion of the composite container member. In accordance with another object of the invention, the patch top may be mounted upon the container by means of an hermetic bond (for example, an adhesive bond, a thermallyresponsive bond or the like), and/or by heat shrinking, crimping or clinching an annular skirt portion of the patch top to the reversely curled end portion of the composite body wall of the container. The patch top is formed from a flexible sheet material, such as aluminum foil, paper, a layer of synthetic plastic material or the like. While the adhesive could be in the form of a liquid (such as an epoxy), preferably it is in the form of a layer of heat-sensitive material (such as polyethylene, ionomer vinyl acetate, polypropylene, or crystalline isotactic polypropylene) formed as a laminate with the sheet material. Other suitable adhesive materials are extrudable hot melt, and vinyl copolymers. Other objects and advantages of the invention will become apparent from a study of the following specification when viewed in the light of the accompanying drawing, in which: Fig. 1 is a top plan view of a first embodiment of the partial opening closure member of the invention including a symmetrically arranged pull tab and a pair of tear-initiating cuts; Fig. 2 is a detailed sectional view of the first embodiment taken along line 2-2 of Fig. 1; Fig. 3 is a top plan view of the embodiment of Fig. 1 with the pull tab and removable body portions torn away; Figs. 4 and 5 illustrate a modification of the first embodiment in its unopened and opened conditions, respectively; Fig. 6 is a top plan view of a modification of the embodiment of Figs. 4 and 5, wherein the body portion of the patch top closure member is waffled to impart greater strength and rigidity;Figs. 7 and 8 illustrate another embodiment of the invention in the closed and open conditions, respectively, only a single tear-initiating cut being provided to permit lateral tearing of the pull tab and removable body portions from the residual body portion; Fig. 9 is an exploded detailed elevational view illustrating the closure member of Figs. 7 and 8 provided with a protective synthetic overcap member; Fig. 10 is a sectional view taken along the line 10-10 of Fig. 9; Figs. 11 and 12 illustrate, in the closed and open conditions, respectively, a preferred modification of the embodiment of Figs. 7 and 8; and Fig. 13 illustrates a modification of the closure member of Figs. 7 and 8 wherein the pull tab and body portions are symmetrically arranged. Detailed Description Referring first more particularly to Figs. 1-3, in the first embodiment of the invention the planar patch top closure member 2 is formed of flexible sheet material (such as aluminum foil, paper, a synthetic plastic material or the like) and includes a pull tab portion 4 that extends outwardly from the peripheral edge of the generally disk-shaped body portion 6. The pull tab portion 4 is coplanar with and symmetrically arranged relative to the body portion 6, thereby defining a pair of junctures each of which contains a tear-initiating cut, slot or notch 8. As shown more particularly in Fig. 2, the body portion 6 of the closure member 2 is bonded in hermetically sealed relation to the reversely curled end portion 11 of a composite container member 10 by a layer 18 of conventional bonding material. Preferably the bonding material comprises a layer of heat-sensitive material, such as polyethylene or a vinyl copolymer, that is laminated to or coated upon the sheet material of the patch top, although the adhesive could be an extrudable hot melt, a conventional liquid adhesive, or the like. Thus, the hermetic patch top bond could be either a liquid adhesive bond, or a heat-sealed bond.As is known in the art, the composite container includes an outer label layer 12 (of foil, paperboard, foil-paper laminate or the like), a fibrous body wall layer 14 (of paperboard, for example), and an impervious inner liner layer 16 (of aluminum foil, for example). Owing to the reversely curled end 11 of the composite body wall, the planar closure member 2 is bonded to the liner layer 16 of the container 10 by the bonding layer 18. The bonding material 18 could be coated upon the inner surface of the impervious liner layer 16, if desired. As shown in Fig. 3, upon upward pulling of the symmetrical pull tab portion 4 of the closure member 2 away from the container 10, an initial tearing of the body portion 6 of the closure member 2 is produced commencing at the first cuts 8. Thus, when the pull tab portion 4 is pulled upwardly away from the container, two lines of tear 20, 22 initiating at the slots 8 converge to a point 24 at the peripheral edge of the closure body portion diametrically opposite the tab portion. Residual portions 6a, 6b of the body portion 6 of the patch top closure member remain bonded to the container open end to define a pour opening 26 for dispensing the contents of the container.A removable synthetic plastic overcap (not shown) may be provided as is known in the art, in which case the pull tab 4 is initially folded either backwardly upon the upper surface of the body portion, or downwardly against the outer surface of the composite body wall 10. If desired, a second cut (not shown) could be provided in the peripheral edge of the body portion at the point of convergence 24, thereby to prevent peeling of the adjacent edges of the residual portions 6a and 6b from the container. in the modification of Figs. 4 and 5, the closure member 2 is provided with a pair of converging score lines 28 associated with the first cuts 8', respectively, to more particularly define the removable and residual portions 6c and 6d, respectively, of the body portion 6' of the planar closure member 2'. The score lines 28 converge toward a point 29 spaced inwardly from the peripheral edge of the body portion, whereby when the pull tab 4' is pulled away from the container 10, the body portion 6' is initially torn at the slots 8' and then severed along score lines 28 to define the dispensing opening 30, as shown in Fig. 5. In the modification illustrated in Fig. 6, the body portion 32 of the planar closure member 34 is provided with a plurality of waffle-defining deformations 36, which deformations provide improved overall strength to the closure member. The deformations are arranged so that the cuts 38 at the junctures between the tab and body portions 40 and 32, respectively, are in alignment with a pair of perpendicular deformations, so that upon upward pulling of the tab portion 40 away from the container, tearing of the body portion 32 at the slots 38 is initiated and the removable portion is severed along the pair of perpendicular deformations which converge at a point of intersection 42, thereby defining the removable and residual portions 32a and 32b, respectively, of the closure body portion.The width of the tab portion 40 determines the location of the tearinitiating cuts 38, which in turn determine those pair of deformations along which the body portion will be severed, thereby defining the size and configuration of the dispensing opening. Figs. 7-10 illustrate another embodiment of the closure member of the present invention, wherein the tab portion 50 of the closure member 51 is asymmetrically arranged or offset relative to the body portion. Since one side of the tab portion 50 merges with the circumferential edge of the body portion 52, only one juncture is formed that contains a first tear-initiating cut, slit or notch 54. In this embodiment, the patch top closure member 51 includes an annular skirt portion 51 a that is clinched or crimped upon the reversely outwardly bent end portion 11 of the container member 10, as shown in Fig. 9. The container is provided with a conventional protective synthetic plastic overcap 55, as is known in the art. To open the container of Figs. 9 and 10, the plastic overcap 55 is removed and the pull tab is lifted upwardly to the horizontal position of Fig. 7, whereby the pull tab 50 is pulled laterally to initiate tearing of the body portion at cut 54. Further pulling of the pull tab causes removable portion 52b to be torn from the residual portion to define the dispensing opening 56. If desired, a peripheral cut 57 may be provided at the other end of the line of tear to prevent peeling of the residual body portion 52a from the container. As shown in the preferred modification of Fig. 11, preferably the body portion 52' is provided with a score line 58 that more accurately defines the line of tear between the residual and removable body portions 52a' and 52b', respectively. In the modification of Fig. 13, the pull tab portion 70 is symmetrically arranged relative to the body portion 72, only a single cut 74 being provided in one of the two junctures between the pull tab and body portions. As in the embodiments of Figs. 7-12, the pull tab portion 70 is pulled laterally to initiate tearing at the cut 74 and along the line of tear 76 to tear the removable body portion 72b from the residual body portion 72a. A peripheral cut 78 may be provided at the end of the line of tear to prevent peeling of the residual body portion from the container. If desired, the line of tear 76 may be scored for a more accurate tearing operation. In this embodiment, the axis of the pull tab 70 is arranged at the acute angle alpha to the line of tear 76. While the patch top closure embodiments of Figs. 7-13 are preferably provided with annular skirt portions, it is apparent that these skirt portions might be omitted, if desired. Similarly, if desired, the embodiments of Figs. 1-6 could be provided with annular skirt portions. In the embodiments provided with annular skirt portions, the peripheral edge portion of the diskshaped body portion is normally bonded to the adjacent extremity of the outwardly reversely folded end portion of the container body member. The annular skirt portion is clinched or crimped concentrically upon the outer surface of the reversely folded end portion 11. While in accordance with the provisions of the Patent Statutes the preferred forms and embodiments of the invention have been illustrated and described, it will be apparent to those skilled in the art that various changes and modifications may be made in the described closure members without deviating from the inventive concepts set forth above.

Claims (22)

Claims
1. Patch top closure means for closing one end of a container, comprising (a) a container member open at one end; and (b) a flexible patch top closure member closing said container open end, said patch top member including (1) a body portion extending completely across and mounted upon said container open end; and (2) a pull tab portion connected with the peripheral edge of said body portion; (3) the peripheral edge of said closure member containing at a juncture between said tab and body portions a first cut, said tab portion being operable to tear from the closure member along a line of tear beginning at said first cut both the pull tab portion and a removable part of said body portion immediately adjacent said pull tab portion, whereby the residual body portion of the closure member remains mounted upon the container body end and contains therein a dispensing opening.
2. Closure means as defined in claim 1, wherein the peripheral edge of said body portion contains a second cut at the opposite end of the tear line from said first cut, thereby to prevent peeling of the residual body portion during the removal of said removable body portion.
3. Closure means as defined in claim 1, wherein said body portion contains a scoreline defining the line of tear between the removable and residual body portions.
4. Closure means as defined in claim 1, wherein said tab portion is asymmetrically arranged relative to said body portion and includes on one side an outer peripheral edge portion which is tangential to the peripheral edge of said body portion, said tab portion containing on its other side a single juncture between said tab portion and said body portion, said juncture containing said first cut.
5. Closure means as defined in claim 4, wherein said closure member includes a score line extending from said first cut to the opposite edge of said peripheral body portion to define a line of tear between said removable and body portions.
6. Closure means as defined in claim 4, wherein the peripheral edge of said body portion contains a second cut at the opposite end of the line of tear from said first slot.
7. Closure means as defined in claim 1, wherein said tab portion is symmetrically arranged relative to said body portion to define a pair of junctures on opposite sides of said tab portion.
8. Closure means as defined in claim 7, wherein only one of said junctures contains a first cut, whereby upon lateral pulling of the pull tab away from said first cut, said tab and removable body portions are torn away from the residual body portion along a line of tear that extends at an acute angle relative to the axis of said pull tab portion.
9. Closure means as defined in claim 1, wherein said container member is of tubular configuration and includes, in concentrically arranged layers, an impervious inner liner layer, a fibrous body wall layer, and an outer label layer, said container body one end being reversely outwardly curled so that said inner liner layer faces and is in engagement with said patch top closure member; and further wherein said patch top body portion includes an annular peripheral skirt portion that is connected concentrically about the reversely curled portion of said container body.
10. Closure means as defined in claim 9, wherein said tab portion is bent downwardly against the outer surface of said container member.
11. Closure means as defined in claim 9, and further including a synthetic plastic overcap member having an annular portion mounted concentrically on said reversely curled end portion in protective relation above said patch top member.
12. Closure means as defined in claim 1, wherein said container member is of tubular configuration and includes, in concentrically arranged layers, an impervious inner liner layer, a fibrous body wall layer, and an outer label layer, said container member one end being reversely curled so that said inner liner layer faces and is in bonded engagement with said patch top closure member.
13. Closure means as defined in claim 12, wherein said patch top member is bonded to said inner liner layer by a bonding material selected from the group consisting of polyethylene, extrudable hot melt, gel lacquer and a vinyl copolymer.
14. Closure means as defined in claim 1, wherein said patch top closure member is bonded in hermetically sealed relation with said container body.
15. Closure means as defined in claim 14, wherein said closure member is adhesively bonded with said container body by a liquid adhesive.
16. Closure means as defined in claim 15, wherein said closure member is bonded with said container body by a heat-responsive bonding material.
17. Closure means as defined in claim 7, wherein each of said junctures contains a first cut, whereby said tab and removable body portions are torn from the residual body portion along converging lines of tear.
18. Closure means as defined in claim 17, wherein said body portion contains a pair of converging score lines in alignment with each of said first cuts, respectively, thereby to define the lines of tear between the removable and residual body portions.
19. Closure means as defined in claim 18, wherein said score lines converge at a point spaced from the peripheral edge of said body portion.
20. Closure means as defined in claim 19, wherein said patch top closure member is generally planar.
21. Closure means as defined in claim 17, wherein said body portion contains a plurality of deformations arranged to define a waffled configuration, said deformations being arranged perpendicular to one another and extending toward the peripheral edge of said closure member, respectively.
22. Closure means as defined in claim 21, wherein said first cuts at the junctures between said tab and body portions are in alignment with a perpendicular pair of said deformations, respectively, whereby the width of said tab portion determines the perpendicular pair of said deformations along which the removable body portion is torn away from the residual body portion.
GB7910685A 1978-08-08 1979-03-27 A Tear-open Container Closure Withdrawn GB2027664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93213778A 1978-08-08 1978-08-08

Publications (1)

Publication Number Publication Date
GB2027664A true GB2027664A (en) 1980-02-27

Family

ID=25461834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7910685A Withdrawn GB2027664A (en) 1978-08-08 1979-03-27 A Tear-open Container Closure

Country Status (7)

Country Link
EP (1) EP0007971A1 (en)
JP (1) JPS5529479A (en)
BE (1) BE874340A (en)
DE (1) DE2901581A1 (en)
FR (1) FR2435406A1 (en)
GB (1) GB2027664A (en)
LU (1) LU81101A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002211076B2 (en) * 2000-10-05 2007-11-29 Weasy Pack International Ltd Foil cover with slanting tear line
WO2009130313A1 (en) * 2008-04-24 2009-10-29 Nestec S.A. Lid with barrier property
EP2423123A1 (en) 2010-08-25 2012-02-29 Constantia Teich GmbH Medicine bottles for dispensing pelletised material
EP2423122A1 (en) 2010-08-25 2012-02-29 Constantia Teich GmbH Medicine bottles for removing pelletised bulk material

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2527175A1 (en) * 1982-05-21 1983-11-25 Raffinage Cie Francaise NEW CAPSULE FOR HERMETIC CLOSURE OF CONTAINERS
DE3347020A1 (en) * 1983-12-24 1985-07-11 Unilever N.V., Rotterdam ALUMINUM FILM COVER BOARD
CH673826A5 (en) * 1984-10-30 1990-04-12 Hoffmann Ag Geb
FR2575444B1 (en) * 1984-12-27 1987-09-04 Legrand Sa PEELABLE FILM PACKAGING FOR GROUP PACKAGING OF VARIOUS ITEMS
FR2596023B1 (en) * 1986-03-19 1989-01-06 Alsacienne Aluminium LID FOR CLOSING A CONTAINER SUCH AS A YOGURT POT HAVING A PERIPHERAL EDGE AT ITS ENTRY
CH673827A5 (en) * 1987-08-27 1990-04-12 Alcan Rorschach Ag Sealable beaker closure pieces - consists of lid with tear off strip and central profiled section
US4981229A (en) * 1989-07-12 1991-01-01 Kraft General Foods, Inc. Innerseal liner for containers
DE4116808A1 (en) * 1991-05-23 1992-11-26 Hoechst Ag CUP-LIKE PACKING WITH PLASTIC LID FILM
DK152492A (en) * 1992-12-21 1994-06-29 Raackmanns Fab As Packaging comprising a tray-shaped base and a cover portion
NL9301164A (en) * 1993-02-26 1994-09-16 Ver Coop Melkind Holder for a pourable or spreadable product, and cover material intended for that purpose.
JPH11501598A (en) * 1995-03-15 1999-02-09 ダニスコ アクティーゼルスカブ Package with tray shaped bottom and cover
FR2731986B1 (en) * 1995-03-20 1997-04-25 Pechiney Emballage Alimentaire PARTIALLY DEFECTED PRE-CUT LIDS
DE19706207B4 (en) * 1996-02-15 2008-04-03 Dynamit Nobel Defence Gmbh Cover for a pressurized container
SK108199A3 (en) † 1997-12-11 2000-01-18 Teich Ag Method for producing partially embossed cover members for containers
AT413207B (en) * 1999-04-22 2005-12-15 Teich Ag PARTICULAR COVERED LID CONTAINER FOR FOOD CONTAINERS
JP4510204B2 (en) * 2000-02-03 2010-07-21 大日本印刷株式会社 Lid material
WO2001074685A1 (en) * 2000-04-04 2001-10-11 Teich Aktiengesellschaft Covering element for sealing containers used for accommodating liquid foodstuffs
FR2834695B1 (en) * 2002-01-16 2004-07-09 Alsacienne Aluminium LID FOR CLOSING A CONTAINER AND BEING REMOVED PARTIALLY TO ALLOW ACCESS TO THE PACKAGED PRODUCT IN THE CONTAINER
ITTO20060070A1 (en) * 2006-02-02 2007-08-03 Soremartec Sa PACKAGE FOR DRINKS
FR2904969B1 (en) * 2006-08-16 2008-10-03 Claude Martin SHUTTER DEVICE OPENED BY PARTIAL OPENING
EP2138422A1 (en) 2008-06-27 2009-12-30 Teich Aktiengesellschaft Board for sealing a container

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH442135A (en) * 1966-10-24 1967-08-15 Alupak Ag Pack of foil material
US3434651A (en) * 1967-05-12 1969-03-25 Continental Can Co Mesh reinforced closure for full opening can
SE350945B (en) * 1971-03-01 1972-11-13 Christenssons Maskiner
US3800999A (en) * 1971-07-23 1974-04-02 J Serritella Non-spillable cup lid
JPS492269U (en) * 1972-04-07 1974-01-10
US3893566A (en) * 1973-10-17 1975-07-08 Scott Paper Co Packaging system including removable moisture-impervious sealing sheet
DE2355550A1 (en) * 1973-11-07 1975-10-02 Bosch Gmbh Robert Tearable container
CA1095459A (en) * 1976-06-07 1981-02-10 Donald H. Ellerbrock Patch-top containing a closure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002211076B2 (en) * 2000-10-05 2007-11-29 Weasy Pack International Ltd Foil cover with slanting tear line
AU2002211076C1 (en) * 2000-10-05 2008-05-29 Weasy Pack International Ltd Foil cover with slanting tear line
WO2009130313A1 (en) * 2008-04-24 2009-10-29 Nestec S.A. Lid with barrier property
CN102046492B (en) * 2008-04-24 2013-01-30 雀巢产品技术援助有限公司 Lid with barrier property
AU2009239888B2 (en) * 2008-04-24 2014-12-04 Nestec S.A. Lid with barrier property
EP2423123A1 (en) 2010-08-25 2012-02-29 Constantia Teich GmbH Medicine bottles for dispensing pelletised material
EP2423122A1 (en) 2010-08-25 2012-02-29 Constantia Teich GmbH Medicine bottles for removing pelletised bulk material
WO2012024706A1 (en) 2010-08-25 2012-03-01 Constantia Teich Gmbh Pharmaceutical bottle for withdrawing goods that are in the form of pieces
WO2012024707A1 (en) 2010-08-25 2012-03-01 Constantia Teich Gmbh Bottle for withdrawing goods that are in the form of pieces

Also Published As

Publication number Publication date
LU81101A1 (en) 1979-06-19
JPS5529479A (en) 1980-03-01
BE874340A (en) 1979-06-18
FR2435406A1 (en) 1980-04-04
DE2901581A1 (en) 1980-02-28
EP0007971A1 (en) 1980-02-20

Similar Documents

Publication Publication Date Title
GB2027664A (en) A Tear-open Container Closure
US4209126A (en) Patch top closure member including a monoaxially oriented film layer
US4501371A (en) Tamper indicating, non-resealable closure
US4453666A (en) Tamper-evident top closure
US3966080A (en) End closure with resealable tab
US3317068A (en) Tear-open sealed containers and closures therefor
US4705197A (en) Pour spout for containers
US3101870A (en) Film sealed container with pouring spout
JP2892716B2 (en) Opening device for packaging containers
EP0531813B1 (en) Opening arrangement for a container package
EP0340339A2 (en) Plastic pour spout bonding
US4196841A (en) Laminate and container therefrom
US3302858A (en) Tab-open closure cap for drinking cup-carton
US4715528A (en) Reclosable opening arrangement on a packing container
JPH02127243A (en) Carton almost impervious to liquid and apparatus and method for holding pour-out section
AU1731599A (en) Containers and caps having tamper-evident liners
JPH0219255A (en) Wrench-opening and identifiable vessel cap having seal disk holding means
US4433808A (en) Pourable, recloseable lid
JP3313417B2 (en) Opening device for container package
EP0312816B1 (en) Pouring spout for a liquid container
WO1996011850A1 (en) Improved pouring spout for a liquid container
EP0613833B1 (en) Outlet closure
EP0577865B1 (en) Aseptic liquid packaging container with reclosable opening member
EP0385954A1 (en) Device for hygienic protection of drinks, edible liquids and other products in general
US4103802A (en) Closure for a container

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)