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Publication numberUS3187966 A
Publication typeGrant
Publication dateJun 8, 1965
Filing dateJul 9, 1963
Priority dateJul 9, 1963
Publication numberUS 3187966 A, US 3187966A, US-A-3187966, US3187966 A, US3187966A
InventorsJulius Klygis Mindaugas
Original AssigneeContinental Can Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Flexible container with snip-off and reseal features
US 3187966 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

June 8, 1965 M. J. KLYGIS 3,137,966

FLEXIBLE CONTAINER WITH SNIPOFF AND RESEAL FEATURES Filed July 9, 1963 2 Sheets-Sheet 1 If is INVENTOR MlNDAUGRS J. Kwms June 8, 1965 M. J. KLYGIS 3,187,956

FLEXIBLE CONTAINER WITH SNIP-OFF AND RESEAL FEATURES Filed July 9, 1963 2 Sheets-Sheet 2 mvwron Mmonuens J. KLYGIS TTORNEYS United States Patent 3,187,966 FLEXIBLE CONTAINER WITH SNlP-OFF AND SEAL FEATURES Mindangas Julius Klygis, Chicago, IlL, assignor to Continental Can Company, Inc, New York, N.Y., a corporation of New York Filed July 9, 1963, Ser. No. 258,769 7 Claims. (Cl. 222-541) This invention relates to a novel flexible container of the squeeze-tube type which is particularly adapted for dispensing paste-type substances therefrom, and in particular, to a novel closure forming an integral part of the flexible container but constructed to be separated therefrom to form a separable closure for reclosing a dispensing opening of the flexible containerafter the integral closure has once been severed from the container.

An object of this invention is to provide a novel flexible plastic container having a closure integrally joined to a neck thereof, the closure having a gripping portion and a plug portion, the plug portion being integrally joined to the neck and at the same time being severable therefrom to form a separable closure whereby the plug portion is cooperable with the neck of the container to reclose an opening formed in the neck of the closure when the closure has once been severed and removed from the container.

Another object of this invention is to provide a novel flexible plastic container of the type immediately above described in which the opening is defined by a severed lip of the neck and the closure includes a circumferential sealing seat having a diametrical dimension greater than the diameter of the opening whereby insertion of the plug portion of the closure within the opening causes sealing contact between the severed lip and the circumferential sealing seat of the closure.

Still another object of this invention is to provide a novel flexible container including a container body having an upwardly directed neck, a closure integrally joined to the neck by a plug portion, a sealing portion joining the plug portion to a gripping portion of the closure, the closure normally closing a dispensing opening which can be opened by severing the plug portion to form a separable closure, the plug portion having a cylindrical body for insertion through the dispensing openinginto the neck of the container and the neck having meansfor gripping the cylindrical body when the same has been inserted into the neck of the container.

Another object of this invention is to provide a novel flexible container of the character immediately abovedescribed wherein the means for gripping the cylindrical body of the plug portion are radically yieldable bellows forming an integral portion of the neck of the container, the bellows including a plurality of circumferential ribs having a minimum internal diameter less than the maximum external diameter of the plug portion of the closure to grippingly retain the closure within the neck of the flexible container.

Still another object of this invention is theprovision of a novel plastic flexible container including an integral closure joined to a upwardly directed neck by a plug portion of the closure, the .plug portion being joined to a gripping portion by a sealing portion, the closure normally closing a dispensing opening of the container neck but being removable therefrom to form a separable closure, and integral cooperable thread means forming a part of the plug portion of the closure and the neck of the flexible plastic container whereby the closure can threadedly reclose the dispensing opening of the container after having once been severed from the neck of the container.

With the above, and other objects in view that will hereinafter appear, the nature of the invention will be more clearly understood by reference to the following detailed description, the appended claims and the several views illustrated in the accompanying drawings: 7

In the drawings:

FIGURE 1 is a top perspective view of an integral flexible plastic container and closure of this invention, and illustrates a plug portion of the closure integrally joined to an upstanding neck of the container.

FIGURE 2 is an enlarged fragmentary sectional view taken along line 2-2 of FIGURE 1, and more clearly illustrates the structural arrangement of the container and the closure, and in phantom lines, the position of a cutting edge for severing the closure from an upstanding neck of the container.

FIGURE 3 is a fragmentary vertical sectional view of the container and closure of FIGURES l and 2, and illustrates the severed closure inserted within the neck of the container to reclose a dispensing opening formed by the removal of the closure from the neck of the container.

FIGURE 4 is a fragmentary top perspective view of a closure seated in a neck of a container, and illustrates a plurality of circumferential gripping ribs formed in a gripping portion of the closure.

FIGURE 5 is a fragmentary sectional view taken along line 55 of FIGURE 4, and more clearly illustrates the configuration of the circumferential gripping ribs and a sealing seat portion of the closure cooperating with a severed lip of the neck.

FIGURE 6 is a top perspective view of another closure 7 constructed in accordance with this invention, and illustrates the closure after having been removed from a container and a plurality of axial gripping ribs formed in a gripping portion of the closure.

FIGURE 7 is a fragmentary vertical sectional view of another flexible plastic container and integral closure forming a part of this invention, and illustrates a substantially conical plug portion spaced from a neck of the container and the position of a cutting edge in phantom outline prior to severing the closure from the neck of the container.

FIGURE 8 is a fragmentary vertical sectional view of the integral flexible container and closure of FIGURE 7, and illustrates the conical plug portion inserted in the neck of the container after the closure has been severed.

FIGURE 9 is a fragmentary vertical sectional view of another integral flexible container and closure, and illustrates cooperative complementary threads forming an integral part of a plug portion of the closure and of a neck of the container.

FIGURE 10 is a fragmentary vertical sectional view of the integral flexible container and closure of FIGURE 9, and illustrates the plug portion or" the closure threaded upon the neck of the container to seal a dispensing opening formed by the removal of the closure from the neck of the container.

FIGURE 11 is a fragmentary vertical sectional view of another flexible container and integral closure forming a part of this invention, and illustrates a cylindrical .FIGURE 3 of the drawings.

plug portion of the closure integrally joined to a bellows portion of a container neck, and in phantom outline, the position of a cutting edge prior to severing the closure from the container.

FIGURE 12 is a fragmentary vertical sectional view of the container and closure of FIGURE 11, and illustrates the closure inserted within the neck of the container.

A plastic container and integral closure constructed in accordance with this invention is best illustrated in FIGURES 1 through 3 of the drawings and is generally designated by the reference numeral 15. The flexible, integral container and closure 15 is preferably blow molded from polyethylene, polypropylene or similar plastic material.

The integral plastic container and closure 15 comprises a container body 16 and a closure 17.

The container body 16 has a downwardly tapering lower body portion 18 terminating in a bottom edge 26 which is preferably ultrasonically sealed after a suitable dispensible fill has been packaged in the container body 16 prior to sealing the edge 20. The fill packaged into the container body 16 is preferably a paste-like substance which is dispensed from the container body 16 by squeezing the same after the closure 17 has been removed.

A central body portion 21 of the container body 16 is joined to the lower body portion 18 by a circumferential shoulder 22 and to an upper body portion 23 by a generally upwardly tapering shoulder 24. The central body portion 21 of the container body 16 provides a cylindrical surface upon which a label may be affixed or, during ablow molding operation, the central body portion 21 can be embossed in a conventional manner if so desired. The central'body portion 21 also provides an area which may be manually grasped to squeeze the container body 16 to dispense the fill therefrom.

The upwardly tapering shoulder 24 gradually blends into an integral neck 25 of the container body 16. The neck 25 has an axial opening 26 defined by a radially inwardly directed lip 27 terminating in an inner peripheral edge portion 28. The edge portion 28 defines the opening 26 in the neck 25 when the closure 17 is severed and removed from the neck 25 in a manner to be described more fully hereafter.

The closure 17 is integrally joined to the neck 25 of the container body 16 by a substantially frusto-conical plug portion 30. The plug portion 36 of the closure 17 has a maximum external diameter greater than the internal diameter of the dispensing opening 26 defined by the edge portion 28. A circumferential sealing groove or seat 31 joines the frusto-conical plug portion 30 to a substantially cylindrical gripping portion 32 of the closure 17. The circumferential sealing seat 31 is diametrically greater than the opening 26 in the neck 25 of the container body 16.

A conventional cutting edge 33 (see FIGURE 2) is used to sever the closure 17 from the container body 16 after which contents may be dispensed from the dispensing opening 26 by manually grasping and squeezing the central body portion 21 of the container body 16. When it is desired to reclose the dispensing opening 26 of the container body 16, the frusto-eonical plug portion 30 of the closure 17 is inserted through the opening 26 into the neck 25 of the container body 16, as is clearly illustrated in FIGURE 3 of the drawings. During the insertion of the plug portion 30 through the dispensing opening 26, the gradually increasing diameter of the plug portion 30 causes the neck 25 to flex radially outwardly during the insertion of the plug 17. After the maximum diameter of the plug portion 30 passes the edge 28 of the neck 25 the neck 25 rebounds radially inwardly to the position illustrated in As heretofore noted, the diameter of the circumferential sealing seat 31 is greater than the opening 26 defined by the edge 28 of the neck 25. This prevents the neck 25 from totally rebounding to its original configuration and causes the edge 28 to positively seat in the circumferential sealing groove 31.

A closure 35 of FIGURES 4 and is substantially identical to the closure 17 of FIGURES 1 through 3 of the drawings. The closure 35 includes a substantially frustoconical plug portion 36 joined by a circumferential sealing seat or groove 37 to a gripping portion 38. The gripping portion 38 is provided with a plurality of circumferential ribs 411 which facilitate the gripping of the closure 35 to facilitate the insertion and withdrawal of the closure 35 into and out of a dispensing opening (unnumbered) of a container body neck 41.

A closure 42 of FIGURE 6 of the drawings is similar to the closure 35 and includes a substantially frusto-conical plug portion 43 joined by a circumferential sealing seat or groove 44 to a gripping portion 45. The gripping portion 45 is provided with a plurality of peripherally arranged axially extending ribs 46 to facilitate gripping of the closure 42 in the manner heretofore described.

Turning to FIGURES 7 and 8 of the drawings, an integral flexible plastic container and closure 47 comprises a container body 48 and a closure 50. The container body 48 is substantially identical to the container body 16 of FIGURE 1' of the drawings, and a complete description of the container body 48 is considered unnecessary for a complete understanding of this invention.

The container body 48, does however, include an upstanding neck 51 having a radially inwardly directed lip 52. The lip 52 terminates in an edge 53 defining a dispensing opening 54 of the container body 48.

The closure 55 is' integrallyjoined to the lip 52 of the neck 51 by a-reduced portion 55 of a gripping portion 56 of the reclosure 50. The gripping portion 56 is integrally joined by a circumferential sealing seat or groove 57 to a'substantially conical plug portion 58. The maximum external dimensions of the conical plug portion 58 and the circumferential sealing seat 57 are greater than the diameter of the opening 54 in the neck 51 of the container body 48.

A conventional cutting edge 60 (see FIGURE 7) is used to sever the closure 47 from the container body 48 in the area of the reduced portion 55. After the closure d7'has been severed and removed any content within the container'body 48 can be dispensed in the manner heretofore described.

When it is desired to reclose the dispensing opening 54, of the container body 48, the closure 47 is inverted from the position illustrated in FIGURE 7 to the position shown in FIGURE 8. The conical plug portion 58 is then axially inserted into the dispensing opening 54 of the neck 51 until the edge 53 of the lip 52 seats in the circumferential sealing seat or groove 57 of the closure 47. During theinsertion of the conical plug portion 58 into the neck 51, the neck 51 gradually flexes radially outwardly and subsequently rebounds to the position illustrated in FIGURE 8 of the drawings. Since the external diametrical dimensions of the circumferential sealing seat 51 are greater than the diameter of the opening 54 in the neck 51, the neck 51 continuously urges the edge 53 defining the dispensingiopening 56 into positive sealing contact with the circumferential sealing seat 57.

A flexible plastic container and .integral closure 61 is shownin FIGURES 9 and 10 of the drawings, and includes a container body 62 and a closure 63.

The container body 62 is substantially identical to the container body 16 of FIGURE 1 of the drawings, and

includes an upstanding neck 64. An uppermost portion 76 (see FIGURE 10) defining the dispensing opening ,67. The closure 63 includes a substantially cylindrical plug portion 71 having an integral internal thread 72 complementing the thread 65 of the neck 64. A radially inwardly directed circumferential sealing seat 69 joins the plug portion 71 of the closure 63 to a substantially cylindrical gripping portion 73.

After the closure 63 has been severed and removed from the container body 62 and the material within the container body 62 has been dispensed through the opening 67 of the neck 64, the plug portion 71 of the closure 63 is threaded upon the neck as in the manner clearly illustrated in FIGURE 10 of the drawings. When the closure 63 is completely threaded upon the neck 64 of the container body 62, the severed edge 76 of the lip 66 seats against the circumferential sealing seat 69 to effect a positive seal therewith.

In FIGURES 11 and 12 of the drawings, there is shown another flexible plastic container and integral closure 75 comprising a plastic container body 76 and a closure 77.

The container body 76 is substantially identical to the container body 16 of. FIGURES 1 through 3 of the drawings and includes an upstanding neck 78. The neck 78 terminates in an upper bellows 89. The bellows 86 is formed by a plurality of radially inwardly directed ribs 31, an upper one of which is integrally joined to a radially inwardly directed lip 32. The lip 82 terminates in an edge portion 83 defining a dispensing opening 84 in the neck 7 8 of the container body 76.

The closure 77 has a cylindrical portion 35 joined to the container body 76 at the edge portion 83 of the neck 78. The cylindrical plug portion 85 terminates upwardly at a downwardly facing circumferential sealing seat 86. The circumferential sealing seat 86 terminates at a gripping portion 87 of the closure 77. V

It should be particularly noted that the external diameter of the cylindrical plug portion 85 of the closure 77 is greater than the diameter of the dispensing opening 84 defined by the edge $3 and the internal diametrical distance between the apex (unnumbered) of each of the circumferential inwardly directed ribs 81.

A conventional cutting edge 88 (see FIGURE 11) is used to sever or snip-off the closure 77 from the container body 76. Thereafter, the material within the container body 76 is dispensed in the manner heretofore described in the consideration of FIGURES 1 through 3 of the drawings. After material has been dispensed from the container body 76 through the dispensing opening 84 and it is desired to reclose the container body 76, the cylindrical plug portion 85 of the closure 77 is inserted axially through the dispensing opening 84 into the neck 7 8 to the position illustrated in FIGURE 12 of the drawings. During the insertion of the cylindrical plug portion 85 into the neck 78 the plug portion forces each of the circumferential ribs 81 radially outwardly thereby causing axial expansion of the bellows 80. This axial expansion of the bellows Sil brings the lip 82 of the neck 78 into intimate sealing contact with the circumferential sealing seat 86 of the closure 77. The smaller diameter of the dispensing opening 34 as compared to the external diameter of the cylindrical plug portion 35 also assures body having an integral upper, central and lower portion,

said lower portion tapering downwardly from said central portion and terminating in a narrow heat sealed edge, said central portion being circumferentially recessed, said upper portion including an upwardly tapering circumferential shoulder terminating in an elongated neck, and a closure integrally joined to said neck, said closure having a gripping portion and a plug portion, said gripping portion including a hollow body defined by a top wall, a peripheral body wall, and an annular bottom wall, said annular wall being generally normal to the container body axis and spaced from the plug portion, a circumferential wall joining the annular wall to the plug portion, the plug portion including a hollow body, said closure being adapted to be severed from said neck to form a separable closure whereby said plug portion is cooperable with said neck to reclose an opening formed therein when the closure is severed from the neck, said opening being defined by a severed lip of said neck and said circumferential wall defining a circumferential sealing seat opening radially outwardly of the container body and being adapted to contact said lip and provide sealing contact therewith.

2. A flexible container comprising a container body terminating in an upwardly directed neck, a closure integrally joined to said neck, said closure having a gripping portion and a plug portion, said gripping portion including a hollow body defined by a top wall, a peripheral body Wall, and an annular bottom wall, said annular wall being generlly normal to the container body axis and spaced from the plug portion, a circumferential wall joining the annular wall to the plug portion, the plug portion including a hollow body, said closure being adapted to be severed from said neck to form a separable closure whereby said plug portion is cooperable with said neck to reclose an opening therein formed when the closure is severed from the neck, said opening being defined by a severed lip of said neck, said circumferential wall defining a circumferential sealing seat opening radially outwardly of the container body and being adapted for contact with said severed lip, said sealing seat joining said gripping portion to said plug portion and said plug portion having a diameterical distance greater than the diameter of said opening whereby insertion of said plug portion within said opening causes sealing contact between said severed lip and the circumferential sealing seat and said annular wall having a diametrical distance greater than the diameter of the plug portion.

3. A flexible container comprising a container body having an upwardly directed neck, a closure, said closure having a plug portion, a gripping portion, and a sealing portion joining said plug and gripping portions, said closure being integrally united by the plug portion to said neck at a dispensing opening thereof, said dispensing opening being normally closed by the closure but being adapted for opening by severing said plug portion to form a separable closure, said plug portion having a cylindrical body for insertion into said neck, and said neck having radially outwardly expandable means for gripping said cylindrical body when the same has been inserted in the neck of the container.

4. The flexible container as defined in claim 1 wherein said means are radially yieldable bellows forming an integral portion of said neck.

5. The flexible container as defined in claim 4 wherein said bellows are a plurality of circumferential ribs having a minimum internal diameter less than the maximum external diameter of the plug portion of the closure.

6. The flexible container as defined in claim 1 wherein said plug portion body includes thread means, and said neck includes complementary thread means whereby the closure can threadedly reclose the dispensing opening af-- ter having been once severed from the neck of the coutainer.

7. A container comprising a container body having a neck, a closure, said closure having a plug portion, said closure being integrally united by the plug portion to the neck at a dispensing opening thereof, said dispensing opening being normally closed by the closure but being adapted for opening by severing said plug portion to form a separable closure, the plug portion having a body for insertion into the neck, and the neck having radially yieldable bellows forming means for gripping the cylindrical body when the same has been inserted in the neck of the container.

References Cited by the Examiner UNITED STATES PATENTS 2,731,053 1/56 Lockhart 222212 X 5 2,750,068 6/56 Platt 222-541 V FOREIGN PATENTS 935,117 8/63 Great Britain.

LOUIS I. DEMBO, Primary Examiner.

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Classifications
U.S. Classification222/541.2, 222/541.5, 222/212, 220/265, 215/48
International ClassificationB65D35/02, B65D35/08, B65D1/02
Cooperative ClassificationB65D1/0238, B65D35/08
European ClassificationB65D35/08, B65D1/02D1A