WO1987002645A1 - Container with resealable sealing device - Google Patents

Container with resealable sealing device Download PDF

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Publication number
WO1987002645A1
WO1987002645A1 PCT/US1985/002089 US8502089W WO8702645A1 WO 1987002645 A1 WO1987002645 A1 WO 1987002645A1 US 8502089 W US8502089 W US 8502089W WO 8702645 A1 WO8702645 A1 WO 8702645A1
Authority
WO
WIPO (PCT)
Prior art keywords
flap
container
front side
adhesive member
attachment
Prior art date
Application number
PCT/US1985/002089
Other languages
French (fr)
Inventor
Sung-Chol Chang
Original Assignee
Chang Sung Chol
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
Priority to US06/558,989 priority Critical patent/US4552269A/en
Application filed by Chang Sung Chol filed Critical Chang Sung Chol
Priority to EP19850905476 priority patent/EP0247031B1/en
Priority to GB8708624A priority patent/GB2189461B/en
Priority to PCT/US1985/002089 priority patent/WO1987002645A1/en
Publication of WO1987002645A1 publication Critical patent/WO1987002645A1/en

Links

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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5827—Tear-lines provided in a wall portion
    • B65D75/5833—Tear-lines provided in a wall portion for tearing out a portion of the wall
    • B65D75/5838—Tear-lines provided in a wall portion for tearing out a portion of the wall combined with separate fixed tearing means, e.g. tabs
    • 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
    • B65D2575/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D2575/52—Details
    • B65D2575/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D2575/586—Opening or contents-removing devices added or incorporated during package manufacture with means for reclosing
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding

Definitions

  • the invention relates generally to small, flexible containers having sealing devices which may be resealed after having been opened, such as are frequently used for containing plural articles intended to be sequentially extracted from the container and requiring continuous protection prior to their use, e.g. paper tissues, moist towelettes, and the like.
  • container in which the contents of the container are protected by a trouble-free reusable seal, so that such, contents, for example, paper tissues, moist towelettes, and the like, can be extracted one at a time from the container upon opening of the seal and so that after the seal has been reclosed the remaining contents of the container will be protected as before.
  • One basic form of container of this type which is well known, is made of a rectangular sheet of thin foil or plastics material having two side regions folded over toward one another so as to overlap slightly.
  • the overlapped margins of the folded- over side regions of the sheet are heat-sealed to each other to provide a longitudinal seam at the middle of one side (the rear side) of the container, and at each end of the sheet the margins of the folded-over side regions are heat-sealed to the adjacent end margin of the unfolded portion of the sheet that defines the other side (the front side) of the container.
  • the container In its front side the container has an opening through which the contents of the container can be extracted.
  • the opening is normally covered and closed by a flap, preferably made of the same or a similar material as the container body, which is permanently secured at one end to the outer surface of the portion of the sheet defining the front side of the container and has its sheet-engaging face coated with a suitable non-hardening pressure-sensitive adhesive.
  • a separate non- adhesive member which is smaller than the flap but-either of the same shape and size as the opening or of generally the same shape as but somewhat larger than the opening, is adhered to the coated face of the flap in a position such that when the flap is closed. the said non-adhesive member overlies the entire expanse of the opening. Representa ⁇ tive constructions of such a container are shown in U.S. Patent No. 4,420,080. . Disclosure of the Invention
  • a primary problem which has arisen with the aforesaid knpwn containers is that the end region * of the closure flap which is secured to the front side of the container may be torn from the latter when the flap is pulled up to open the container.
  • a secondary problem which has arisen is that, by virtue of the frequent flexing of the flap during opening and closing of the container, the non-adhesive member may shift its position on the flap or even become separated therefrom and thus fail to properly and fully overlie the opening in the front side of the container when the flap is closed.
  • a container which has a front side including an opening to provide access to the contents of the container and a resealable sealing device for the opening
  • the sealing device includes a closure flap which is larger . than the opening and is secured to the front side of the container at one end region of the flap adjacent one portion of the periphery of the opening for hinging ove- ent about a line of attachment so as to be able to overlie the opening, with the face of the flap which is engageable with the front side of the container being coated with a pressure-sensitive adhesive
  • the sealing device further includes a non-adhesive member which is smaller than the flap but at least of the same shape and size as the opening, with the non-adhesive member being adhesively secured to the coated face of the flap in a position thereon where the member will completely overlie the opening when the flap is adhered to the front side of the container;
  • the flap has a pair of opposing, generally L
  • a container of the mentioned class which is further characterized in that the non-adhesive member is die-cut in a peninsular form directly out of the front side of the container so as to have a main. body portion defining the opening and a tongue portion extending generally longitudinally from the main body portion and having opposite side edges generally parallel to the second portions of the L-shaped cuts and terminating at the uncut end of the tongue portion remote from the main body portion of the non-adhesive member, with the said uncut end of the tongue portion lying on a second line of attachment substantially coinciding with the first- mentioned line of attachment of the flap, and in that the non-adhesive member has a second pair of tear prevention holes formed in the front side of the container and located on the second line of attachment each at the termination of a respective one of the side edges of -the tongue portion of the non-adhesive member, whereby tearing of the latter and the front side of the container beyond the second line of attachment is effectively inhibited
  • Fig. 1 is a perspective view of a container according to the invention, with the container being shown in a closed position.
  • Fig. 2 is a similar view but with the container being shown in an open position.
  • Fig. 3 is a top view of the container blank or starting sheet, shown after the die-cutting of the sheet but before the folding thereof and with the sealing flap shown superimposed in dotted lines.
  • Fig. 4 is an enlarged top view of the sealing flap per se. Best Mode for Carrying Out the Invention
  • Figs. 1 and 2 show a container (similar to that illustrated in the aforesaid U.S. Patent No. 4,420,080) in the form of a flexible pouch 10 having on each side an accordion fold 12 (to allow for expansion of the pouch upon insertion of its contents and contraction of the pouch upon withdrawal of its contents) and having on its front side a sealing device 14 including a flap 16 which covers and uncovers an opening 18 through which access may be had to the contents of the container.
  • a container similar to that illustrated in the aforesaid U.S. Patent No. 4,420,080
  • a sealing device 14 including a flap 16 which covers and uncovers an opening 18 through which access may be had to the contents of the container.
  • the flap has its face which is engageable with the front side of the container coated with a layer 28 of pressure- sensitive adhesive, and a non-adhesive member 24, which is smaller than the flap 16 and either is of the same shape and size as the opening 18 or is somewhat larger in shape and size than the opening, is adhesively secured to that face of the flap in a position thereon such that when the flap is closed as in Fig. 1 the member 24 also overlies the opening 18 and prevents the adhesive on the flap from coming into contact with the container contents, e.g. tissues, towelettes, and the like.
  • a non-adhesive member 24 which is smaller than the flap 16 and either is of the same shape and size as the opening 18 or is somewhat larger in shape and size than the opening, is adhesively secured to that face of the flap in a position thereon such that when the flap is closed as in Fig. 1 the member 24 also overlies the opening 18 and prevents the adhesive on the flap from coming into contact with the container contents, e.g. tissues, towelettes, and the like
  • the flap 16 further has an end region 16a by whic it is permanently secured to the front side of the container and at its opposite end has a finger grip 22 which allows the user to lift the flap in order to open the container, with the main body of the flap hinging relative to the end region 16a about a line of attachment (not shown) .
  • tearing of the flap 16 beyond the line of attachment upon opening of the sealing device 14 is prevented by the provision of a pair of generally L-shaped cuts 19a/19b and an associated pair of tear prevention holes 20 in the flap 16.
  • Each cut (see also Fig. 4) has a first portion 19a starting at a respective side edge of the main body of the flap and extending transversely inwardly of the flap intermediate the ends of the latter, and a second portion 19b continuing from the innermost end of the respective first portion 19a and extending generally longitudinally of the flap toward and terminating at the line of attachment.
  • the tear prevention holes 20 are formed on the line of attachment and at the terminations of their associated portions 19b of the L-shaped cuts.
  • the transverse spacing between the longitudinal cut portions 19b is somewhat greater than the width of any portion of the non-adhesive member 24 that is located between those portions of the cuts.
  • the flap 16 has a pair of generally longitudinally extend ⁇ ing tabs or fingers 16b defined at the remote sides of the second portions 19b of the cuts, which tabs or fingers are integral enlargements of the end region 16a of the flap.
  • the tabs or fingers 16b serve to enhance the ability of the end region 16a to anchor the flap 16 to the front side of the container 10.
  • the non-adhesive member 24 of the sealing device 14 may be, although it is not so illustrated in the drawing, a separate member of insular form and having a shape and size which correspond to and are at least the same as the shape and size of the access opening 18, generally as shown in the aforementioned U.S. Patent No. 4,420,080. 'Such an insular member may, of course, be die-cut directly out of the part of the sheet of which the front side of the container is constituted.
  • the non-adhesive member 24 is formed by being die-cut in a peninsular form directly out of the part of the sheet of which the front side of the container 10 is constituted, such that the member 24 has a main body portion 24a and a somewhat narrower tongue portion 24b, the latter extending generally longitudinally from the former and having opposite side edges generally parallel to the second portions 19b of the L-shaped cuts and terminating at the uncut end of the tongue portion 24b remote from the main body portion 24a.
  • the said uncut end of the tongue portion is located at a second line of attachment on the front side of the container which directly underlies and essentially coincides with the previously mentioned line of attachment of the flap 16, and tearing of the member 24 beyond the second line of attachment is prevented by the provision of a second pair of tear prevention holes 26 in the front side of the container on the second line of attachment and at the terminations of the opposite side edges of the tongue portion 24b of the member 24.
  • the member 24 is adhesively secured to the coated face of the flap 16 for joint movement therewith when the flap is moved from its closed position (Fig. 1) to its open position (Fig. 2) .
  • the two sets of tear prevention holes 20 and 26 at the coinciding lines of attachment between, on the one hand, the two portions of the flap 16 and between, on the other hand, the tongue portion 24b of the member 24 and the front side of the container 10 serve to relieve stresses at those lines, thereby inhibiting tearing of either the flap or the non- adhesive member beyond the respective line of attachment.
  • a container 10 of the type shown in Figs. 1 and 2 use is made, as shown in Fig. 3,. of a blank 30 of thin flexible sheet material, e.g. paper, plastic, foil or the like, which is cut into a rectangular shape.
  • Accordion folds 12 are formed in the blank, and a peninsular die-cut is made to form simulta- neously both the outline of an access opening having a wider main portion and a narrower end portion in the portion of the blank between the accordion folds and a non-adhesive member 24 of corresponding shape which is attached to the blank at the uncut end of the tongue portion 24b of the member remote from the main body por ⁇ tion 24a thereof.
  • two inner flap tear prevention holes 26 are die cut into blank 30.
  • a resealable sealing device 14 is formed by attaching a closure flap 16, the structure of which is as shown in Fig. 4, to the front side of the container in overlying relation to the member 24 with the aid of a layer of pressure-sensitive adhesive, as shown in broken lines in Fig. 3, care being taken to dispose the holes 20 in the flap in line with the holes 26 in the blank 30.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

A container (10) having an access opening (18) and a resealable sealing device (14), the latter consisting of a closure flap (16) which is secured at one end region (16a) to the front side of the container and is coated with a pressure-sensitive adhesive (28) to permit the container to be opened and resealed. A pair of L-shaped cuts (19a/19b) are formed in the flap to define a pair of tabs or fingers (16b) integral with the one end region of the flap, and a pair of tear prevention holes (20) are formed at the ends of the cuts on the line of attachement of the body of the flap to the one end region thereof, all to prevent the flap from tearing away from the container. In one embodiment of the invention, a non-adhesive member (24) is cut peninsularly out of the front side of the container to define the access opening and is adhesively secured to the coated face of the flap, and an additional pair of tear prevention holes (26) are provided in the non-adhesive member at the ends of its side edges on a second line of attachment coinciding with the first line of attachment.

Description

CONTAINER WITH RESEALABLE SEALING DEVICE
Technical Field
The invention relates generally to small, flexible containers having sealing devices which may be resealed after having been opened, such as are frequently used for containing plural articles intended to be sequentially extracted from the container and requiring continuous protection prior to their use, e.g. paper tissues, moist towelettes, and the like. Background Art
It is often necessary to provide an inexpensive container in which the contents of the container are protected by a trouble-free reusable seal, so that such, contents, for example, paper tissues, moist towelettes, and the like, can be extracted one at a time from the container upon opening of the seal and so that after the seal has been reclosed the remaining contents of the container will be protected as before. One basic form of container of this type, which is well known, is made of a rectangular sheet of thin foil or plastics material having two side regions folded over toward one another so as to overlap slightly. The overlapped margins of the folded- over side regions of the sheet are heat-sealed to each other to provide a longitudinal seam at the middle of one side (the rear side) of the container, and at each end of the sheet the margins of the folded-over side regions are heat-sealed to the adjacent end margin of the unfolded portion of the sheet that defines the other side (the front side) of the container. In its front side the container has an opening through which the contents of the container can be extracted. The opening is normally covered and closed by a flap, preferably made of the same or a similar material as the container body, which is permanently secured at one end to the outer surface of the portion of the sheet defining the front side of the container and has its sheet-engaging face coated with a suitable non-hardening pressure-sensitive adhesive. In order to prevent the adhesive from coming into contact with the contents of the container, a separate non- adhesive member, which is smaller than the flap but-either of the same shape and size as the opening or of generally the same shape as but somewhat larger than the opening, is adhered to the coated face of the flap in a position such that when the flap is closed. the said non-adhesive member overlies the entire expanse of the opening. Representa¬ tive constructions of such a container are shown in U.S. Patent No. 4,420,080. . Disclosure of the Invention
A primary problem which has arisen with the aforesaid knpwn containers is that the end region*of the closure flap which is secured to the front side of the container may be torn from the latter when the flap is pulled up to open the container. A secondary problem which has arisen is that, by virtue of the frequent flexing of the flap during opening and closing of the container, the non-adhesive member may shift its position on the flap or even become separated therefrom and thus fail to properly and fully overlie the opening in the front side of the container when the flap is closed.
The aforesaid primary problem is overcome by a container which has a front side including an opening to provide access to the contents of the container and a resealable sealing device for the opening, wherein the sealing device includes a closure flap which is larger . than the opening and is secured to the front side of the container at one end region of the flap adjacent one portion of the periphery of the opening for hinging ove- ent about a line of attachment so as to be able to overlie the opening, with the face of the flap which is engageable with the front side of the container being coated with a pressure-sensitive adhesive, and wherein the sealing device further includes a non-adhesive member which is smaller than the flap but at least of the same shape and size as the opening, with the non-adhesive member being adhesively secured to the coated face of the flap in a position thereon where the member will completely overlie the opening when the flap is adhered to the front side of the container; which container is characterized in that the flap has a pair of opposing, generally L-shaped cuts formed therein each of which starts at a respective one of the side edges of the flap and has a first portion extending transversely inwardly of the flap intermediate the ends of the latter and continues with a second portion extending generally longitudinally of the flap toward and terminating at the line of attachment, with the two second portions of the L-shaped cuts being spaced from each other by a distance greater than the width of any portion of the non-adhesive member located between the second portions of the cuts, in that the two L-shaped cuts define at the remote sides of the second portions thereof a pair of generally longitudinally extending tabs or fingers constituting respective integral enlargements of the one end region of the flap so as to enhance the anchoring of the flap to the front side of the container, and in that the flap further has a pair of tear prevention holes formed therein which are located on the line of attachment and each at the termination of a re- spective one of the second portions of the L-shaped cuts, whereby a tearing of the flap beyond the line of attach¬ ment and off the container is effectively inhibited.
The aforesaid secondary problem is overcome by a container of the mentioned class which is further characterized in that the non-adhesive member is die-cut in a peninsular form directly out of the front side of the container so as to have a main. body portion defining the opening and a tongue portion extending generally longitudinally from the main body portion and having opposite side edges generally parallel to the second portions of the L-shaped cuts and terminating at the uncut end of the tongue portion remote from the main body portion of the non-adhesive member, with the said uncut end of the tongue portion lying on a second line of attachment substantially coinciding with the first- mentioned line of attachment of the flap, and in that the non-adhesive member has a second pair of tear prevention holes formed in the front side of the container and located on the second line of attachment each at the termination of a respective one of the side edges of -the tongue portion of the non-adhesive member, whereby tearing of the latter and the front side of the container beyond the second line of attachment is effectively inhibited.
Brief Description of Drawings
Fig. 1 is a perspective view of a container according to the invention, with the container being shown in a closed position.
Fig. 2 is a similar view but with the container being shown in an open position.
Fig. 3 is a top view of the container blank or starting sheet, shown after the die-cutting of the sheet but before the folding thereof and with the sealing flap shown superimposed in dotted lines.
Fig. 4 is an enlarged top view of the sealing flap per se. Best Mode for Carrying Out the Invention
Referring now to the drawings, Figs. 1 and 2 show a container (similar to that illustrated in the aforesaid U.S. Patent No. 4,420,080) in the form of a flexible pouch 10 having on each side an accordion fold 12 (to allow for expansion of the pouch upon insertion of its contents and contraction of the pouch upon withdrawal of its contents) and having on its front side a sealing device 14 including a flap 16 which covers and uncovers an opening 18 through which access may be had to the contents of the container. The flap has its face which is engageable with the front side of the container coated with a layer 28 of pressure- sensitive adhesive, and a non-adhesive member 24, which is smaller than the flap 16 and either is of the same shape and size as the opening 18 or is somewhat larger in shape and size than the opening, is adhesively secured to that face of the flap in a position thereon such that when the flap is closed as in Fig. 1 the member 24 also overlies the opening 18 and prevents the adhesive on the flap from coming into contact with the container contents, e.g. tissues, towelettes, and the like. The flap 16 further has an end region 16a by whic it is permanently secured to the front side of the container and at its opposite end has a finger grip 22 which allows the user to lift the flap in order to open the container, with the main body of the flap hinging relative to the end region 16a about a line of attachment (not shown) .
In accordance with the basic concept of the present invention, tearing of the flap 16 beyond the line of attachment upon opening of the sealing device 14 is prevented by the provision of a pair of generally L-shaped cuts 19a/19b and an associated pair of tear prevention holes 20 in the flap 16. Each cut (see also Fig. 4) has a first portion 19a starting at a respective side edge of the main body of the flap and extending transversely inwardly of the flap intermediate the ends of the latter, and a second portion 19b continuing from the innermost end of the respective first portion 19a and extending generally longitudinally of the flap toward and terminating at the line of attachment. The tear prevention holes 20 are formed on the line of attachment and at the terminations of their associated portions 19b of the L-shaped cuts. The transverse spacing between the longitudinal cut portions 19b is somewhat greater than the width of any portion of the non-adhesive member 24 that is located between those portions of the cuts. As clearly shown, by virtue of the L-shaped cuts the flap 16 has a pair of generally longitudinally extend¬ ing tabs or fingers 16b defined at the remote sides of the second portions 19b of the cuts, which tabs or fingers are integral enlargements of the end region 16a of the flap. The tabs or fingers 16b serve to enhance the ability of the end region 16a to anchor the flap 16 to the front side of the container 10. It will be understood that in this basic embodiment of the invention, the non-adhesive member 24 of the sealing device 14 may be, although it is not so illustrated in the drawing, a separate member of insular form and having a shape and size which correspond to and are at least the same as the shape and size of the access opening 18, generally as shown in the aforementioned U.S. Patent No. 4,420,080. 'Such an insular member may, of course, be die-cut directly out of the part of the sheet of which the front side of the container is constituted.
Alternatively, in accordance with a further aspect of the present invention, the non-adhesive member 24 is formed by being die-cut in a peninsular form directly out of the part of the sheet of which the front side of the container 10 is constituted, such that the member 24 has a main body portion 24a and a somewhat narrower tongue portion 24b, the latter extending generally longitudinally from the former and having opposite side edges generally parallel to the second portions 19b of the L-shaped cuts and terminating at the uncut end of the tongue portion 24b remote from the main body portion 24a. The said uncut end of the tongue portion is located at a second line of attachment on the front side of the container which directly underlies and essentially coincides with the previously mentioned line of attachment of the flap 16, and tearing of the member 24 beyond the second line of attachment is prevented by the provision of a second pair of tear prevention holes 26 in the front side of the container on the second line of attachment and at the terminations of the opposite side edges of the tongue portion 24b of the member 24. The member 24 is adhesively secured to the coated face of the flap 16 for joint movement therewith when the flap is moved from its closed position (Fig. 1) to its open position (Fig. 2) .
It will be understood that the two sets of tear prevention holes 20 and 26 at the coinciding lines of attachment between, on the one hand, the two portions of the flap 16 and between, on the other hand, the tongue portion 24b of the member 24 and the front side of the container 10 serve to relieve stresses at those lines, thereby inhibiting tearing of either the flap or the non- adhesive member beyond the respective line of attachment. For the purpose of making a container 10 of the type shown in Figs. 1 and 2, use is made, as shown in Fig. 3,. of a blank 30 of thin flexible sheet material, e.g. paper, plastic, foil or the like, which is cut into a rectangular shape. Accordion folds 12 are formed in the blank, and a peninsular die-cut is made to form simulta- neously both the outline of an access opening having a wider main portion and a narrower end portion in the portion of the blank between the accordion folds and a non-adhesive member 24 of corresponding shape which is attached to the blank at the uncut end of the tongue portion 24b of the member remote from the main body por¬ tion 24a thereof. At the same time, two inner flap tear prevention holes 26 are die cut into blank 30.
In order to form the container, the sections 30a and 30b of the blank are laid over the back face of the section 30c of the blank with the accordion folds 12 at the sides, the edges 32 and 32a are secured to the edge 40 by a permanent seal, the edges 34 and 34a are secured to the edge 42 by a permanent seal, and the overlapping edges 36 and 38 are secured to each other by a permanent seal. After the container has been so formed, a resealable sealing device 14 is formed by attaching a closure flap 16, the structure of which is as shown in Fig. 4, to the front side of the container in overlying relation to the member 24 with the aid of a layer of pressure-sensitive adhesive, as shown in broken lines in Fig. 3, care being taken to dispose the holes 20 in the flap in line with the holes 26 in the blank 30.

Claims

1. A container which has a front side including an opening to provide access to the contents of the container and a resealable sealing device for the opening, wherein the sealing device includes a closure flap which is larger than the opening and is secured to the front side of the container at one end region of the flap adjacent one portion of the periphery of the opening for hinging movement about a line of attachment between the body of the flap and the said one end region thereof so as to be able to overlie the opening, with the face of the flap which is engageable with the front side of the container being coated with a pressure-sensitive adhesive, and wherein the sealing device further includes a non- adhesive member which is smaller than the flap but at least of the same shape and size as the opening, with the non-adhesive member being adhesively secured to the coated face of the flap in a position thereon where the member will completely overlie the opening when the flap is adhered to the front side of the container; characterized in that the flap has a pair of opposing, generally L-shaped cuts formed therein each of which starts at a respective one of the side edges of the flap and has a first portion extending transversely inwardly of the flap intermediate the ends of the latter and continues with a second portion extending generally longitudinally of the flap toward and terminating at the • line of attachment, with the two second portions of the L-shaped cuts being spaced from each other by a distance greater than the width of any portion of the non-adhesive member located between the second portions of the cuts, in that the two L-shaped cuts define at the remote sides of the second portions thereof a pair of generally longitudi¬ nally extending tabs or fingers constituting respective integral enlargements of the one end region of the flap so -Id¬
as to enhance the anchoring of the flap to the front side of the container, and in that the flap further has a pair of tear prevention holes formed therein which are located on the line of attachment and each at the termination of a respective one of the second portions of the L-shaped cuts, whereby a tearing of the flap beyond the line of attachment and off the container is effectively inhibited.
2. A container as claimed in claim 1; further characterized in that the non-adhesive member is die-cut in a peninsular form directly out of the front side of the container so as to have a main body portion defining a major part of the opening and a tongue portion defining a minor part of the opening, the tongue portion extending generally longitudinally from the main body portion and having opposite side edges generally codirectional with the second portions of the L-shaped cuts and terminating at the uncut end of the tongue portion remote from the main body portion of the non-adhesive member, with the said uncut end of the tongue portion lying on a second line of attachment substantially coinciding with the first-mentioned line of attachment of the flap, and in that the non-adhesive member has a second pair of tear prevention holes formed in the front side of the container and located on the second line of attachment each at the termination of a respective one of the side edges of the tongue portion of the non-adhesive member, whereby tearing of the latter and the front side of the container beyond the second line of attachment is effectively inhibited.
3. A container as claimed in claim 2; further characterized in that the tongue portion of the non- adhesive member is narrower than the main body portion of the member.
4. A container as claimed in claim 2; further characterized in that the side edges of the tongue portion of the non-adhesive member are generally parallel to the second portions of the L-shaped cuts.
5. A container as claimed in claim 4; further characterized in that the tongue portion of the non- adhesive member is narrower than the main body portion of the member.
PCT/US1985/002089 1983-12-07 1985-10-22 Container with resealable sealing device WO1987002645A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US06/558,989 US4552269A (en) 1983-12-07 1983-12-07 Resealable sealing device
EP19850905476 EP0247031B1 (en) 1985-10-22 1985-10-22 Container with resealable sealing device
GB8708624A GB2189461B (en) 1985-10-22 1985-10-22 Container with resealable sealing device
PCT/US1985/002089 WO1987002645A1 (en) 1985-10-22 1985-10-22 Container with resealable sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1985/002089 WO1987002645A1 (en) 1985-10-22 1985-10-22 Container with resealable sealing device

Publications (1)

Publication Number Publication Date
WO1987002645A1 true WO1987002645A1 (en) 1987-05-07

Family

ID=22188901

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1985/002089 WO1987002645A1 (en) 1983-12-07 1985-10-22 Container with resealable sealing device

Country Status (3)

Country Link
EP (1) EP0247031B1 (en)
GB (1) GB2189461B (en)
WO (1) WO1987002645A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991004920A1 (en) * 1989-10-04 1991-04-18 Paxan Ab Recloseable container
EP0546369A1 (en) * 1991-12-12 1993-06-16 FIN-OMET S.r.l. Resealable dispenser-container for moist tissues
DE19504062A1 (en) * 1995-02-08 1996-08-14 Rovema Gmbh Plastics bag with product discharge aperture
GB2319511A (en) * 1996-11-21 1998-05-27 Rothmans International Ltd Packaging of smoking articles
US6164444A (en) * 1996-11-21 2000-12-26 British American Tobacco Investments Ltd. Packaging for smoking articles with sealed enclosure
US6237760B1 (en) 1996-11-21 2001-05-29 British American Tobacco (Investments) Limited Packaging of smoking articles
GB2360271A (en) * 1998-07-08 2001-09-19 Flexipol Packaging Ltd Bags of easy open construction
EP1621469A2 (en) * 2004-07-29 2006-02-01 Origin Products Limited Display packaging
WO2010051146A2 (en) * 2008-10-31 2010-05-06 Frito-Lay North America, Inc. Two side cut reseal with pressure sensitive adhesive and the method for making same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2094630A1 (en) * 1993-01-19 1994-07-20 John Leroy Herzberg Facial tissue pocket pack

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1944621A (en) * 1932-11-03 1934-01-23 Roy E Van Atta Bag
US1997378A (en) * 1932-09-24 1935-04-09 John M Driver Manufacture of bags
US2719663A (en) * 1949-08-03 1955-10-04 Jagenberg Werke Ag Container with rip-open flap
US2896839A (en) * 1955-07-26 1959-07-28 Foil Process Corp Package for drink-forming powders
US3687352A (en) * 1971-03-08 1972-08-29 Edward Kalajian Container closure
US3711011A (en) * 1970-05-04 1973-01-16 Action Packaging Corp Resealable packaging device
US4192420A (en) * 1978-11-30 1980-03-11 Scott Paper Company Flexible and pliable moisture-impervious package
US4260061A (en) * 1979-07-05 1981-04-07 Bemis Company, Inc. Bag with opening and reclosing feature

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997378A (en) * 1932-09-24 1935-04-09 John M Driver Manufacture of bags
US1944621A (en) * 1932-11-03 1934-01-23 Roy E Van Atta Bag
US2719663A (en) * 1949-08-03 1955-10-04 Jagenberg Werke Ag Container with rip-open flap
US2896839A (en) * 1955-07-26 1959-07-28 Foil Process Corp Package for drink-forming powders
US3711011A (en) * 1970-05-04 1973-01-16 Action Packaging Corp Resealable packaging device
US3687352A (en) * 1971-03-08 1972-08-29 Edward Kalajian Container closure
US4192420A (en) * 1978-11-30 1980-03-11 Scott Paper Company Flexible and pliable moisture-impervious package
US4260061A (en) * 1979-07-05 1981-04-07 Bemis Company, Inc. Bag with opening and reclosing feature

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991004920A1 (en) * 1989-10-04 1991-04-18 Paxan Ab Recloseable container
EP0546369A1 (en) * 1991-12-12 1993-06-16 FIN-OMET S.r.l. Resealable dispenser-container for moist tissues
DE19504062C2 (en) * 1995-02-08 1998-06-04 Rovema Gmbh Bag with a product removal opening and a closure film closing the product removal opening and method for producing the bag
DE19504062A1 (en) * 1995-02-08 1996-08-14 Rovema Gmbh Plastics bag with product discharge aperture
US6237760B1 (en) 1996-11-21 2001-05-29 British American Tobacco (Investments) Limited Packaging of smoking articles
US6164444A (en) * 1996-11-21 2000-12-26 British American Tobacco Investments Ltd. Packaging for smoking articles with sealed enclosure
GB2319511A (en) * 1996-11-21 1998-05-27 Rothmans International Ltd Packaging of smoking articles
GB2360271A (en) * 1998-07-08 2001-09-19 Flexipol Packaging Ltd Bags of easy open construction
GB2360271B (en) * 1998-07-08 2002-09-11 Flexipol Packaging Ltd Bags of easy open construction
EP1621469A2 (en) * 2004-07-29 2006-02-01 Origin Products Limited Display packaging
EP1621469A3 (en) * 2004-07-29 2007-02-14 Origin Products Limited Display packaging
WO2010051146A2 (en) * 2008-10-31 2010-05-06 Frito-Lay North America, Inc. Two side cut reseal with pressure sensitive adhesive and the method for making same
WO2010051146A3 (en) * 2008-10-31 2010-07-15 Frito-Lay North America, Inc. Two side cut reseal with pressure sensitive adhesive and the method for making same

Also Published As

Publication number Publication date
GB2189461A (en) 1987-10-28
EP0247031A4 (en) 1988-12-08
GB2189461B (en) 1989-10-11
EP0247031A1 (en) 1987-12-02
EP0247031B1 (en) 1990-03-28
GB8708624D0 (en) 1987-05-13

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