US3389849A - Plastic gable top container - Google Patents

Plastic gable top container Download PDF

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Publication number
US3389849A
US3389849A US534257A US53425766A US3389849A US 3389849 A US3389849 A US 3389849A US 534257 A US534257 A US 534257A US 53425766 A US53425766 A US 53425766A US 3389849 A US3389849 A US 3389849A
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United States
Prior art keywords
panels
container
closure
rib
edge
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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.)
Expired - Lifetime
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US534257A
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English (en)
Inventor
Harry B Egleston
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.)
Ex-Cell-O Corp
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Ex-Cell-O Corp
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Filing date
Publication date
Application filed by Ex-Cell-O Corp filed Critical Ex-Cell-O Corp
Priority to US534257A priority Critical patent/US3389849A/en
Priority to GB56732/66A priority patent/GB1098670A/en
Priority to DE19661511092 priority patent/DE1511092A1/de
Priority to SE00177/67A priority patent/SE334323B/xx
Priority to NO166250A priority patent/NO123124B/no
Priority to DK6367AA priority patent/DK121428B/da
Priority to FI670034A priority patent/FI43550C/fi
Priority to JP42001122A priority patent/JPS4841670B1/ja
Priority to BE693689D priority patent/BE693689A/xx
Application granted granted Critical
Publication of US3389849A publication Critical patent/US3389849A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/02—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body
    • B65D5/06—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper by folding or erecting a single blank to form a tubular body with or without subsequent folding operations, or the addition of separate elements, to close the ends of the body with end-closing or contents-supporting elements formed by folding inwardly a wall extending from, and continuously around, an end of the tubular body
    • B65D5/067—Gable-top containers
    • B65D5/068—Gable-top containers with supplemental means facilitating the opening, e.g. tear lines, tear tabs

Definitions

  • ABSTRACT OF THE DISCLOSURE An extensible pouring spout closure for a container formed of thermoplastic resinous sheet material wherein the pouring lip area is sanitarily housed by means of a double tear edge seal which may be opened by the initial tearing of a single, easily accessible fused edge seal that in turn initiates, as part of the same operation, the sequential breaking of a pair of independent spout release edge seals.
  • the present invention relates to packaging, and more particularly to a container of the gable top variety including an extensible pouring spout for liquids and other fiowable materials.
  • the innovation finds particular, but by no means exclusive, utility in disposable containers adapted for distribution of milk and other dairy products.
  • a container of the foregoing character is customarily erected from a flat blank of sheet stock which has been impressed with an appropriate pattern of score lines, the latter defining a plurality of side panels together with corresponding upper and lower panel extension flaps or closure members.
  • the usual procedure in erecting the container is to form the blank into a polygonal tube, open at both ends, and then to close the lower or bottom panel extensions, retaining them in place by means of a suitable adhesive.
  • paperboard coated with heat and pressure sensitive thermoplastic substances, such as polyethylene which not only renders the paper sheet material resistant to fluids, but also serves as a sealing adhesive for effecting tight closure and sealing of the container. This sealing action is accomplished by heating the surfaces to be sealed and quickly pressing them tightly together to form a liquidtight plastic-to-plastic bond.
  • thermoplastic coated containers of the above described type have been commercially successful, there are certain disadvantages connected with their use, one of the most marked of which involves the existence of uncoated raw edges being exposed to the liquid product within the container. Although various methods have been devised to solve the problem of penetration of the liquid product into the paperboard, the result has been an increase in cost of the container, together with the packaging equipment.
  • thermoplastic substance used is desirably one which is inert to the substance to be packaged, is strong and durable, is inexpensive, and is easy to score and form into containers.
  • a thermoplastic substance which is useful for packaging dairy products is high-density polyethylene.
  • other heat-scalable materials that is to say, synthetic plastic material which can be welded together upon the application of fusing heat thereto, will find use under favorable circumstances.
  • Typical materials of this nature are polyvinyl chloride, polyvinyl acetate, vinyl copolymers, polypropylene, polystyrene, cellulose acetate and cellulose acetate butyrate. Sheet material of about 3 to 30 mils thickness are most advantageously employed, depending upon its ability to take and retain a fold.
  • An object of the present invention is the provision of a new and improved gable top container closure formed of thermoplastic sheet material which will be strong, simple to erect, close and seal, and susceptible of high volume economical production for packaging milk and other comestibles.
  • Another object of the present invention is to provide a container of the above type having a retractable pouring spout sanitarily housed within an externally heat sealed closure, while preventing the pouring spout from being permanently and inaccessibly sealed within the closure.
  • Still another object is to provide a container of the above character having incorporated into its top end closure an extensible, sanitarily protected spout which may be opened by the initial tearing of a single, easily accessible fused seal that in turn initiates, as part of the same operation, the sequential breaking and simulaneous tearing of a pair.of independent spout release fused seals.
  • a further object of the invention is to provide a container of the above character having a top closure incorporating at opposite ends thereof a pair of extensible sanitarily protected pouring spouts in such manner that either spout may be selectively opened by the user with equal facility, through the application of fingertip forces, to permit dispensing the contents of the container.
  • a related object is to provide a container wherein both spouts may be successively opened by the user to allow for packaging and dispensing non-flowable items.
  • a final object of the present invention is to provide a method for edge welding the pouring spout of a synthetic plastic container that achieves a hermetically sealed top closure which has excellent release characteristics.
  • FIG. 1 is a fragmentary portion of the outside surface of a flat blank of sheet plastic material showing the inventive structure.
  • FIGS. 2, 3 and 4 are fragmentary perspective views illustrating sequentially certain of the steps involved in forming the top closure of the container.
  • FIG. 5 is an enlarged cross-sectional view taken along the line 55 of FIG. 4.
  • FIG. 6 is a fragmentary perspective view of the gable top subsequent to the initial pouring spout sealing.
  • FIG. 7 is an enlarged cross-sectional view taken along the line 77 of FIG. 6.
  • FIG. 7A is an enlarged partial end view of the initial pouring spout sealing of the container as shown in FIG. 6.
  • FIG. 8 is a fragmentary perspective view of the gable top prior to the outer sealing.
  • FIG. 9 is an enlarged cross-sectional view taken along the line 99 of FIG. 8.
  • FIG. 10 is a fragmentary, partially sectioned, perspective view of the assembled and sealed gable top.
  • FIG. 11 is an enlarged end view of the container of FIG. 10.
  • FIGS. 12, 13 and 14 are fragmentary perspective views showing sequentially various steps in opening one spout of the container.
  • FIG. 1 there is shown the outside surface of flat blank (FIG. 1) of thermoplastic sheet material with a pattern of appropriate score lines.
  • the container is separated into three groups by score lines as represented by sta gered upper score line 21.
  • the bottom closure group (not shown) is not necessary in the disclosure of the present invention; however, a complete description of one type of structure is given in copending patent applicaton No. 474,869, filed July 26, 1965, now Patent No. 3,334,802, and assigned to the same assignee as the instant application.
  • the flat blank 20 is defined on the sides by edges 27 and 28, and with the panels being separated by score lines 29 through 32. Integral with the upper ends of the side panels, but separated therefrom by the transverse score line 21, are a plurality of panel extensions which give the top of the container its characteristic gable shape. These panels include a transverse score line indicated generally by the numeral 33, generally parallel to the score line 21 and spaced between score line 21 and the top edge of the tank 20. The areas between score lines 33 and 21 define the roof panels 35 and 37 and the triangular end panels 34, 36 of the top closure, while the areas above score line 33 define the parts of the central rib 69, as shown in the completed closure of FIG. 10.
  • the roof panels 35, 37 are connected respectively with alternate side panels 23, 25.
  • the upper ends of the roof panels are in turn connected respectively to outer rib panels 38, 39 along the common transverse score line 33.
  • the rib panel 38 terminates in a top flap 40 running along its entire length and connected thereto along a transverse score line 41.
  • the outer rib panel 39 terminates in a top flap 42 connected thereto along a transverse score line 43.
  • the triangular end panels 34, 3-6 are connected to alternate side panels 22, 24 along the score line 21.
  • the triangular end panel 34 is flanked by triangular foldback panels 44, 45 connected thereto along upwardly converging score lines 46, 47.
  • the downwardly converging or V contour provided by the portions 48, 49 of score line 33 intersect with the score lines 46, 47 at the apex of the panel 34.
  • the panel 45 is also connected to the inclined roof panel 35 along the perpendicular score line 29.
  • the panels 50, 51 are connected respectively to the foldback panels 44, 45 along their corresponding score lines 48, 49.
  • the panels 50, 51 are connected to each other along a short perpendicular score line 52 extending from the intersection of the score lines 46, 47, 48, 49 upwardly to the edge of the blank.
  • the opposite end of the inner rib panel 51 is connected to the outer rib panel 38 along perpendicular score line 29.
  • the triangular end panel 36 is flanked by triangular foldback panels 53, 54 connected thereto along upwardly converging score lines 55, 56.
  • the panels 53, 54 are connected to the inclined roof panels along the perpendicular score lines 30, 31.
  • Inner rib or pouring spout panels 59, 66 are connected to the triangular foldback panels 53, 54 along the downwardly converging portions 57, 58 of transverse score line 33.
  • Panels 59, 6t are connected to each other along short perpendicular score line 61 extending upwardly to the edge of the blank from the intersection of the score lines 55, 56, 57, S8.
  • the opposite ends of rib panels 59, 60 are connected to the roof panels 35, 37 along perpendicular score lines 39, 31 respectively.
  • cut lines or slits 62 Above the point of intersection between horizontal score lines 41, 43 with the perpendicular score lines 29, 30, 31 and 32 there are provided cut lines or slits 62.
  • the slits 62 are shown exaggerated in width while as a practical matter the slits are aligned on their associated score lines 29, 3t), 31 and 32 and have an imperceptible width.
  • the upper edges 63, 64, 65, 66 of the pour spout panels form a shallow inverted V contour that for the instant embodiment is complementary to the V contour formed by the score lines 48, 49 and 57, 53.
  • the purpose served by the inverted V contour edges 63, 64, 65, 66 will be described later with respect to the formation of the top closure.
  • the top edges 67, 68 extend in a straight line along the top edges of the closure flap panels 40, 42.
  • the blank 20 of FIG. 1 is adapted to be erected into the completed container C by first folding it upon itself to form a flat tube and adhesively securing the side seam flap 26 to the opposite edge portion of the blank.
  • any suitable method such as disclosed in US. Patents Nos. 3,085,430 and 3,122,070, may be employed.
  • These patents are assigned to the assignee of the subject application and the disclosures thereof are incorporated by reference for a more complete description of various side seaming methods. While these patents are primarily concerned with side seaming plastic coated paperboard blanks, the manner of attaining a similar surface to surface seal with sheet plastic would be closely analagous.
  • thermoplastic blanks could be employed wherein no side seam flap, as such, is required.
  • examples of other possible methods include an edge weld seal made by a hot bar or rotary-type bar applied directly to the blank edges and a hot knife type seal performed at the same time the blank is severed from its parent sheet plastic.
  • Still another extension of applicants closure would be its utilization with an extruded thermoplastic tube requiring no side seam.
  • the parts thereof are infolded into gable form.
  • the triangular panel score lines 46, 47, 55, and 56 it maybe necessary to pro-bend the triangular panel score lines 46, 47, 55, and 56 by infolding the triangular end panels 34, 36 toward each other as shown in FIG. 2.
  • numerous methods could be used to score the blank to obviate this step.
  • a thermoforming process could be employed or various cold pressure forming techniques utilized a consequence of which would produce inward movement of panels 34, 35 upon convergence of roof panels 35, 37.
  • the closure flaps 40, 42 are pivoted outwardly about their scores 41, 43, respectively toward a horizontal plane. Simultaneously therewith, or as a separate operation, the container is then closed as by passing its top outer rib panels 38, 39 between a pair of converging shoes (not shown) which bring the outer faces of inner rib pour spout panels 50, 51, and 59, 60 respectively together (FIG. 4).
  • a pair of converging shoes not shown
  • the shoes or other closing jaws urge the rib portion, generally shown at 69, into the intimate face contact as shown in FIG. 5.
  • FIGS. 6 and 7 illustrate the container closure after this initial hermetic sealing or welding operation, which is preferably made by a single heater bar having sufiicient length and width to encompass the entire area of the upwardly facing edges.
  • this initial hermetic sealing or welding operation which is preferably made by a single heater bar having sufiicient length and width to encompass the entire area of the upwardly facing edges.
  • the desired edge weld was achieved using high density polyethylene having a thickness of the order of mils.
  • the sealing operation involves lowering a thermostatically controlled hot bar so as to just make contact with the stationary container edges 6366 and subject them to a temperature of about 225 F. to 250 F. for a dwell time of approximately one second, whereupon the hot bar is moved upwardly and the container is advanced to the next station.
  • the amount of pressure applied to the edges is considered negligible as the thin edge sections will flow almost instantaneously upon contact with the hot bar, while the downward travel of the bar is positively stopped a few hundreds below the initial contact point.
  • edge seal of this invention in an extensible pouring spout, the surprising and unobvious discovery was made that the seal tears or separates along a line of weakness included by the vertical plane of centerline 72 (FIG. 7).
  • the edge weld provides not only an easily formed hermetic weld, attained externally of the filled container, but also insures that the spouts will always remain free and readily accessible in undamaged condition when the user opens the container in the prescribed manner.
  • FIG. 9 a partial sectional view of the gable top illustrates the disposition of flaps 40, 42 after being refolded upwardly into vertical substantially coextensive relation with their respective panels 38, 39 to form a pair of sealing flaps extending completely across the container.
  • These sealing flaps have their paired end edges 74, 75 and 73, 76 terminating substantially in the plane of the side walls 24 and 22 respectively.
  • the paired end edges, indicated at '77 in enlarged FIG. 7A, remaining after the formation of welds 7t), 71 terminate in the planes of the side walls 24, 22.
  • the points of termination 78 of slits 62 in conjunction with the location of scores 41, 43 below the edges 63, 64 and 65, 66, respectively, are important features in arriving at applicants easy release hermetic sealed closure.
  • the prevention of partial fusion or welding between the inside surface areas 79 of the sealing fiaps 40, 42 and the welds 70, 71 provide a smooth unbroken edge when pouring from the container. It will be noted that sutficient time is provided for the welds 76, 71 to be set by maintaining the rib portion 69 in clamped condition, before flaps are moved to their position shown in FIG. 8.
  • the container C as illustrated in FIG. 8, is moved to a final sealing station during which time the rib flaps 4t), 42 are closed by closing guides (not shown) providing parallel surfaces on opposite sides of the container top, their configuration bringing the top flaps into position to be urged into their final intimate contact condition (FIG. 8) by the action of clamping blocks (not shown).
  • the blocks Preferabiy, the blocks have faces designed to effect contact of the entire rib surfaces above scores 88, 89 with the exception of chamfered upper and side edge portions of the blocks.
  • the reason for chamfering the block edges is to expose a defined portion adjacent the upper edges 67, 6S and paired side edges 73, 76 and 74, 75 of the rib fiaps 40, 42 to achieve a controlled top and end edge weld.
  • the method of achieving the exposed upper edge Weld 81 and end edge welds 82 to complete the hermetic sealing of the container can be by a hot bar similar to the method used for welds and 71.
  • a single vertically movable hot bar or head heater having a generally inverted U-shaped configuration was employed to simultaneously form the welds 81, 82.
  • the exposed edge welds 81, 82 have been controlled by means of the chamfered block edges together with utilizing the block faces as cold pressure pads. As seen in FIG. 11, a uniform flared weld results while the cold pressure applied by the blocks also prevents warping or deforming of the sealed container rib 69.
  • the side welds 82 can be accomplished during the same dwell period used to form weld 81. In order to insure that the side edges are sealed, the welds 82 should extend approximately inch below the points of termination 78 of the slits 62.
  • an extensible sanitarily protected pouring spout 85 of pitcher-like form is incorporated into the top closure of the all plastic container 20 and rendered accessible as a result of the partial severance of the edge welds S1, 82 together with simultaneous and complete severance of edge weld 70 resulting in partial disassembly of the central rib (FIG. 12).
  • the pouring spout 85 accordingly comprises the triangular end panel 36, triangular fold-back panels 53, 54, pouring lip panels 59, 60, adjacent portions of outer rib panels 38, 39, and adjacent portions of inclined roof panels 35, 37 (FIGS. 1 and 12-14).
  • the pouring lip panels 59, 60 by virtue of having their edges 65, 66 welded only to themselves, provide the spout S5 with a free and smooth unruptured lip area 80 (FIG. traversed by fluid poured from the container. This area 80 serves as a pouring lip and affords excellent pouring and cutoff characteristics.
  • the pouring lip area 80 is completely and sanitarily enclosed by the outer edge welds 81, 82 and the edge welds 70, 71, and the spout is enclosed with complete sanitary protection up to the time the container is opened by the user. Furthermore, by eliminating surface-to-surface heat seals, which are essentially as strong as the original sheet plastic, applicant has provided a closure that may be easily and cleanly separated to open the container and extend the spout 85.
  • a container blank of sheet material for providing a tubular-like container of rectangular configuration in horizontal cross-section having a gable-like closure on the top end thereof including a central transverse rib structure when in finalized closed condition, said blank comprising,
  • said blank comprising a third horizontal score line spaced upwardly from said first horizontal score line and defining in combining with said vertical score lines integral rib closure panels and pouring lip panels respectively in each of said outer and inner closure panels,
  • said rib panels having a fourth horizontal score line spaced upwardly from said third horizontal score line and below its upper terminal edge to provide upper and lower sealing panels
  • said blank having slit portions on said vertical score lines commencing at the terminal edge of said pouring lip panels and extending at least to the juncture of said fourth horizontal score lines with said vertical score lines, whereby the upper portion of said rib panels are adapted to be folded outwardly along their respective fourth horizontal score lines to allow the pouring lip panels to extend above said fourth horizontal score lines for heat sealing and the pouring lip panel terminal side edges and the rib panel side edges to be heat sealed when said upper rib portions are folded into finalized container form.
  • each of said pouring lip panels have an inverted V-contour.
  • a gable top container of foldable thermoplastic sheet material comprising the combination of;
  • each roof panel (e) a rib panel surmounting each roof panel, each said rib panel formed with a horizontal score line to provide upper and lower sealing panels,
  • a sanitarily protected extensible pouring spout housed in collapsed condition within said container and defined in part by one of said end panels, an adjacent pair of said fold-back panels and an adjacent pair of said lip panels, said spout also being defined by adjacent portions of said roof panels and rib panels,
  • said upper sealing panels being folded in juxtoposed substantially vertically extending relation and projecting above said first fusion seals, the terminating upper and side edges of said upper sealing panels being joined by a second fusion tear seal wherein said lip panel side edges and said rib panel side edges forming a common fusion tear seal such that a liquidtight double tear seal closure is attained.
  • each said horizontal score line is located substantially intermediate the juncture of said rib panel with its associated roof panel and its upper terminating edge.
  • each end thereof incorporates an extensible sanitarily protected pouring spout in such manner that either spout may be selectively used.
  • each pouring lip panel has an inverted V-contour.
  • each end of said container incorporates an extensible sanitarily protected pouring spout in such manner that at least one spout may be selectively used.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)
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US534257A 1966-01-06 1966-01-06 Plastic gable top container Expired - Lifetime US3389849A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US534257A US3389849A (en) 1966-01-06 1966-01-06 Plastic gable top container
GB56732/66A GB1098670A (en) 1966-01-06 1966-12-19 Extensible pouring spout and method of sealing same
DE19661511092 DE1511092A1 (de) 1966-01-06 1966-12-21 Aus einem Zuschnitt hergestellter Behaelter,insbesondere fuer Fluessigkeiten,sowie Verfahren zu dessen Herstellung
NO166250A NO123124B (da) 1966-01-06 1967-01-04
SE00177/67A SE334323B (da) 1966-01-06 1967-01-04
DK6367AA DK121428B (da) 1966-01-06 1967-01-05 Fremgangsmåde til hermetisk lukning af en beholder, der er fremstillet ved foldning af et fladt emne af thermoplastfolie.
FI670034A FI43550C (fi) 1966-01-06 1967-01-05 Tapa termoplastista levyainetta olevan jakelusäiliön yläpään sulkemiseksi
JP42001122A JPS4841670B1 (da) 1966-01-06 1967-01-06
BE693689D BE693689A (da) 1966-01-06 1967-02-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US534257A US3389849A (en) 1966-01-06 1966-01-06 Plastic gable top container

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US3389849A true US3389849A (en) 1968-06-25

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US534257A Expired - Lifetime US3389849A (en) 1966-01-06 1966-01-06 Plastic gable top container

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US (1) US3389849A (da)
JP (1) JPS4841670B1 (da)
BE (1) BE693689A (da)
DE (1) DE1511092A1 (da)
DK (1) DK121428B (da)
FI (1) FI43550C (da)
GB (1) GB1098670A (da)
NO (1) NO123124B (da)
SE (1) SE334323B (da)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460739A (en) * 1968-03-11 1969-08-12 American Can Co End closures for liquid container
US3762625A (en) * 1970-01-15 1973-10-02 Mojonnier Inc Albert Plastic seamless gable top container
US4126262A (en) * 1976-07-02 1978-11-21 Champion International Corporation All-plastic heat-sealable container material and method of making
US4184624A (en) * 1974-12-10 1980-01-22 Ampco Foods Inc. Flattenable top for gable top containers
US4224092A (en) * 1976-07-02 1980-09-23 Champion International Corporation Method for making all-plastic heat-sealable container
US4228898A (en) * 1979-05-14 1980-10-21 Packaging Corporation Of America Reclosable carton and blank therefor
US4313553A (en) * 1980-10-02 1982-02-02 Ex-Cell-O Corporation Container with extensible pouring spout
US4332577A (en) * 1978-10-13 1982-06-01 Novus Corp. N.V. Packaging
US4657177A (en) * 1984-08-06 1987-04-14 Owens-Illinois, Inc. Carton formed from blank of expanded polymer material and blank therefor
US4721243A (en) * 1983-09-20 1988-01-26 Elopak A/S Liquid carrying container and blank
US4730766A (en) * 1985-12-20 1988-03-15 Continental Bondware, Inc. Sealing of void area at the top of cup bead of hot melt
US4989780A (en) * 1984-08-06 1991-02-05 Owens-Illinois Plastic Products Inc. Blank for sealed carton with integral reclosable pour-out spout
US20050272584A1 (en) * 2002-12-13 2005-12-08 Hakan Zetterstrom Packaging device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50143916U (da) * 1974-05-13 1975-11-27
JPS5137420U (da) * 1974-09-11 1976-03-19
JPS51100279U (da) * 1975-02-07 1976-08-11
JPS5273172U (da) * 1975-11-25 1977-06-01
JPS6231064U (da) * 1985-08-08 1987-02-24
JPH01176075U (da) * 1988-05-26 1989-12-14

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US2679469A (en) * 1950-04-06 1954-05-25 Ciba Pharm Prod Inc Method of welding polyethylene and like plastic materials
US3053386A (en) * 1957-09-24 1962-09-11 American Cyanamid Co Liquid tight package
US3066064A (en) * 1960-06-03 1962-11-27 Bemis Bro Bag Co Heat-sealed edge joint and method
US3185376A (en) * 1963-04-15 1965-05-25 Ex Cell O Corp Gable top container closure
US3217966A (en) * 1963-06-20 1965-11-16 Crystal Preforming And Packagi Closure structure for a container

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2679469A (en) * 1950-04-06 1954-05-25 Ciba Pharm Prod Inc Method of welding polyethylene and like plastic materials
US3053386A (en) * 1957-09-24 1962-09-11 American Cyanamid Co Liquid tight package
US3066064A (en) * 1960-06-03 1962-11-27 Bemis Bro Bag Co Heat-sealed edge joint and method
US3185376A (en) * 1963-04-15 1965-05-25 Ex Cell O Corp Gable top container closure
US3217966A (en) * 1963-06-20 1965-11-16 Crystal Preforming And Packagi Closure structure for a container

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460739A (en) * 1968-03-11 1969-08-12 American Can Co End closures for liquid container
US3762625A (en) * 1970-01-15 1973-10-02 Mojonnier Inc Albert Plastic seamless gable top container
US4184624A (en) * 1974-12-10 1980-01-22 Ampco Foods Inc. Flattenable top for gable top containers
US4126262A (en) * 1976-07-02 1978-11-21 Champion International Corporation All-plastic heat-sealable container material and method of making
US4224092A (en) * 1976-07-02 1980-09-23 Champion International Corporation Method for making all-plastic heat-sealable container
US4332577A (en) * 1978-10-13 1982-06-01 Novus Corp. N.V. Packaging
US4228898A (en) * 1979-05-14 1980-10-21 Packaging Corporation Of America Reclosable carton and blank therefor
US4313553A (en) * 1980-10-02 1982-02-02 Ex-Cell-O Corporation Container with extensible pouring spout
WO1982001175A1 (en) * 1980-10-02 1982-04-15 Cell O Corp Ex Container with extensible pouring spout
US4721243A (en) * 1983-09-20 1988-01-26 Elopak A/S Liquid carrying container and blank
US4820253A (en) * 1983-09-20 1989-04-11 Elopak A/S Method for obtaining a container blank
US4657177A (en) * 1984-08-06 1987-04-14 Owens-Illinois, Inc. Carton formed from blank of expanded polymer material and blank therefor
US4989780A (en) * 1984-08-06 1991-02-05 Owens-Illinois Plastic Products Inc. Blank for sealed carton with integral reclosable pour-out spout
US4730766A (en) * 1985-12-20 1988-03-15 Continental Bondware, Inc. Sealing of void area at the top of cup bead of hot melt
US20050272584A1 (en) * 2002-12-13 2005-12-08 Hakan Zetterstrom Packaging device
US7510516B2 (en) * 2002-12-13 2009-03-31 Tetra Laval Holdings & Finance S.A. Packaging device
US20090163339A1 (en) * 2002-12-13 2009-06-25 Tetra Laval Holdings & Finance S.A. Packaging device
US8617039B2 (en) 2002-12-13 2013-12-31 Tetra Laval Holdings & Finance S.A. Packaging device

Also Published As

Publication number Publication date
BE693689A (da) 1967-07-17
SE334323B (da) 1971-04-19
NO123124B (da) 1971-09-27
DE1511092A1 (de) 1969-07-03
JPS4841670B1 (da) 1973-12-07
DK121428B (da) 1971-10-11
FI43550B (da) 1970-12-31
FI43550C (fi) 1971-04-13
GB1098670A (en) 1968-01-10

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