US3315871A - Carton - Google Patents

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Publication number
US3315871A
US3315871A US462589A US46258965A US3315871A US 3315871 A US3315871 A US 3315871A US 462589 A US462589 A US 462589A US 46258965 A US46258965 A US 46258965A US 3315871 A US3315871 A US 3315871A
Authority
US
United States
Prior art keywords
flap
carton
panel
cut
flaps
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US462589A
Other languages
English (en)
Inventor
Norman H Moore
Thomas W Foster
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.)
Fibreboard Paper Products Corp
Original Assignee
Fibreboard Paper Products Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fibreboard Paper Products Corp filed Critical Fibreboard Paper Products Corp
Priority to US462589A priority Critical patent/US3315871A/en
Priority to GB16054/66A priority patent/GB1106574A/en
Priority to BE681100D priority patent/BE681100A/xx
Priority to SE7780/66A priority patent/SE322726B/xx
Priority to DEF49412A priority patent/DE1298928B/de
Priority to NL6607937A priority patent/NL6607937A/xx
Priority to CH832366A priority patent/CH462032A/de
Application granted granted Critical
Publication of US3315871A publication Critical patent/US3315871A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/541—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in one or more closure flaps
    • 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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/54—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing
    • B65D5/5405—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form
    • B65D5/542—Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing for opening containers formed by erecting a blank in tubular form the lines of weakness being provided in the container body
    • 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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/70—Break-in flaps, or members adapted to be torn-off, to provide pouring openings
    • B65D5/701—Tearable flaps defined by score-lines or incisions provided in the closure flaps of a tubular container made of a single blank
    • B65D5/703—Tearable flaps defined by score-lines or incisions provided in the closure flaps of a tubular container made of a single blank the score-lines or incisions extending in the body of the tubular container
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00—Envelopes, wrappers, and paperboard boxes
    • Y10S229/902—Box for prepared or processed food
    • Y10S229/905—Frozen food
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S229/00—Envelopes, wrappers, and paperboard boxes
    • Y10S229/915—Stacking feature
    • Y10S229/917—Stacking of collapsed container or blank

Definitions

  • This invention relates to a carton and more particularly relates to a carton adapted to be fully sealed and expeditiously opened to dispense frozen foods or like goods therefrom.
  • heat scalable adhesives or coatings has encouraged the packaging art to supplement and oftentimes dispense with the use of conventional multi-structured packages for the purpose of packaging frozen foods and the like.
  • Such conventional packages may comprise, for example, a paperboard carton having a waxed or otherwise suitably coated paper overwrap employed to prevent contamination and leakage.
  • An object of this invention is to provide a carton blank which may be erected to form a tightly sealed carton which may be readily opened.
  • a further object of this invention is to provide a carton comprising at least one corner constructed and arranged to be slightly crushed during packaging to effect an efficient seal.
  • a still further object of this invention is to provide a fully sealed carton end closure which may be opened expeditiously.
  • FIG. 1 is a perspective view of a closed and sealed carton employing novel features of this invention
  • FIG. 2 is an enlarged view illustrating a sealed corner of the carton of FIG. 1;
  • FIG. 3 is a view taken on line III-III in FIG. 1;
  • FIG. 4 is a view similar to FIG. 1 disclosing the carton as it would appear with the top end closure thereof opened;
  • FIG. 5 is a cross-sectional view taken on lines V-V in FIG. 1;
  • FIG. 6 is a top plan View of a blank utilized to form the carton illustrated in FIGS. 14.
  • the closed and sealed carton of FIG. 1 may be formed out of the blank illustrated in FIG. 6 by suitable packaging techniques.
  • suitable packaging techniques For example, US. patent application Ser. No. 457,893 by John D. Winters et al. for an Apparatus and Method for Folding and Sealing Cartons discloses machinery and method steps which may be employed to form the type of carton illustrated.
  • the blank preferably comprises a paperboard coustituent fully coated on both sides with a laminant plastic such as polyethylene, polyvinylidene chloride or other suitable heat sensitive coating which will react (melt) at temperatures within a range of from 200 to 600 F.
  • a laminant plastic such as polyethylene, polyvinylidene chloride or other suitable heat sensitive coating which will react (melt) at temperatures within a range of from 200 to 600 F.
  • a heat seal wax i.e., a wax coating which has been formulated to accelerate solidification thereof in a short time interval may be utilized.
  • thermoplastic adhesive applied during or before the carton manufacturing operation
  • a pre-applied thermoplastic adhesive applied during or before the carton manufacturing operation
  • conventional coatings will be described as heat scalable coatings or simply adhesives.
  • the particular adhesive chosen should, of course, afford the two-fo1d function of securing the flaps together and sealing the end closure to prevent carton content contamination or leakage.
  • the blank of FIG. 6 comprises parallel first scorelines defining first and second side panels 11 and 12, respectively, having end panels 13 and 14 hingedly connected thereto in the manner shown.
  • a manufacturers glue flap 15 is arranged to be secured to the inner Wall of end panel 14, as clearly illustrated in FIG. 5, to form the carton into a tubular configuration for shipping purposes.
  • flap 15 may be formed as an extension of end panel 14 and suitably secured to side panel 11.
  • Bottom closure flaps Illa-14a are suitably connected to one end of their respective side and end panels by a longitudinally extending scoreline 16-, arranged transversely with respect to the first scorelines. As will be hereinafter explained, these flaps may be suitably folded into superimposed relationship and sealed together to form a carton bottom closure.
  • Scoreline 17 is interrupted by cuts or first cut means 12c and 120! formed in side panel 12, preferably offset transversely away from scoreline 17. Similar cuts may be formed on panel 11, adjacent scoreline 16, in the manner illustrated. These cuts are of limited depth and assure a slight crushing of the corners of the formed top closure to effect an efficient seal thereat, as will be hereinafter more fully understood.
  • flap 11b has a cut 110 of limited depth formed therein, as viewed in FIGS. 5 and 6.
  • Side edges 11d and Me of flap 1112 are preferably arranged to converge towards each other slightly in the manner illustrated.
  • a perforated line 13c defines a removable tab 13d formed in panel 13 to facilitate opening of the carton end closure to the FIG. 3 position. Preferably, such perforations do not extend through panel 13 so as to assure an air-tight closure.
  • the carton is initially formed by securing manufacturers glue flap 15 to the inside of panel 14 to thus form a tubular structure which may be economically shipped and thereafter stacked in a carton feeder.
  • the bottom closure is formed as follows: minor flap 11a is folded; end flaps 13a and 14a are folded onto flap 11a; major flap 12a is folded over the previously folded flaps; and the flaps are adhered together in sealed relationship by a suitable sealing means.
  • a sealing means preferably comprises a heat and pressure sealing means of the type disclosed in the above-mentioned application.
  • top flaps are held in an open position to facilitate filling of the partially formed carton with contents, such as free flowing frozen foodstuff. Thereafter, the top closure is formed in the following manner: second flap 12b is folded; third and fourth flaps 13b and 14b are folded over flap 12b; first flap 11b is folded over the afore-mentioned flaps, and the flaps are secured together by a suitable sealing means.
  • the formed carton thus comprises opposed side panels 11-12, opposed end panels 1314 and top and bottom closures.
  • fiaps 13b and 14b could be folded first with flap 12b and then flap 11b folded thereon in sealing relationship.
  • the bottom closure could also be folded in such an alternative manner.
  • novel aspects of this invention constitute the construction and arrangement of cuts or first cut means 120 and 12d. These cuts are identical to the ones formed in panel 11 and therefore the following discussions also apply to the latter cuts.
  • the cuts are arranged adjacent each corner of the top closure whereat second flap 12b hingedly connects to second side panel 12 to permit the corners of the end closure to be slightly crushed when overlying portions of flap 11b are forced into sealing relationship with the underlying flaps.
  • This arrangement is illustrated in enlarged and somewhat exaggerated FIGS. 2 and 3.
  • the top surface of flap 13b is thus arranged to substantially lie in the same pla'ne as the top surface of flap 12b.
  • Cut 110 is constructed and arranged in the manner illustrated in FIGS. and 6 to facilitate opening the top end closure of the carton to the position disclosed in FIG. 4.
  • a serious opening problem prevails in connection with the packaging of frozen food in the type of carton herein described, due to the fact that conventional opening means oftentimes do not insure against contamination and leakage.
  • the inherent toughness of polyethylene and like coatings renders it impracticable to use such conventional opening means.
  • the cut preferably extends to a sutficient depth on the underside of first fiap 11b to carry it through the polyethylene or like coating, but may be arranged to further extend into the paperboard.
  • the paperboard may comprise several plies or a homogeneous Fourdrinier sheet. It has been found that when a polyethylene coating is employed that it is sufficient if the cut extends only through such coating.
  • the resulting tear will appear as 11g illustrated in FIG. 4, i.e., such tear will take place between the above coating and the surface portions of panel 11b which are adhered to fiap 12b.
  • Cut 110 is preferably shaped to comprise a first or tapered portion arranged in diverging relationship with respect to free edge 11 of flap 11b, a second or straight portion and a third or arcuate portion arranged to extend towards scoreline 17.
  • the arcuate portion of the cut facilitates the substantially right angle change in direction of the tear, i.e., transversely with respect to the second, straight portion of the cut.
  • tapered edge 132 aids in directing the opening force towards and along the first portion of the cut. Such force is then directed along the cuts second portion and to the third portion towards scoreline 17.
  • the adhesive securement of one side of panel 11b to flap 12b assures a cleanly defined tear.
  • the third cut portion could be removed and the second straight cut portion extended and terminated at the free edge of flap 14b (FIG. 5).
  • the last-mentioned cut embodiment substantially provided a cleanly defined tear along the modified second cut portion and the free edge of flap 14b to scoreline 17. It can be seen, however, that the third, arcuate cut portion of the illustrated embodiment more readily facilitates the above-described right angle change in direction of the tear.
  • a carton comprising opposed side and end panels and top and bottom closures, said top closure comprising a first flap hingedly connected to a first one of said side panels a second flap of less width than said first flap hingedly connected to the second one of said side panels and third and fourth fiaps hingedly connected to said opposed end panels, first cut means formed on said second side panel at each corner of said top closure said first cut means being in parallel and in slightly offset relationship to a score line hingedly connecting said second flap to said second side panel, second cut means formed on an underside of said first flap, each of said first and second cut means arranged to extend into their respective panel or flap to a limited depth, means adhesively securing inner surface portions of said first flap in overlying relationship with respect to said second fiap adjacent said second cut means for permitting part of said inner surface of said first flap portion to remain secured to said second flap when said first flap is detached from said second flap, said first cut means constructed and arranged on the carton side walls to permit a slight crushing of the corner portions of said first and second flaps and
  • said second cut means is continuous and comprises a first out portion arranged to intersect a free edge of said first flap and further arranged in diverging relationship therewith, a second portion substantially coinciding with a free edge of said second fiap and a third portion arranged to extend towards a scoreline hingedly connecting said first flap to said first side panel.
  • a carton end closure comprising opposed first and second panels and opposed end panels each having a flap hingedly connected thereto by a scoreline, at least one cut means formed on said second panel adjacent to a corner of said end closure where said second flap hingedly connects to said second panel, said cut means being in parallel and slightly offset relationship to the scoreline hingedly connecting said second flap to said second panel, said cut means extending into said second panel to a limited depth, the flap of said first panel adhesively secured to the flap of said second panel in overlying relationship thereto and further arranged with said cut means to slightly crush the corner of said end closure and cooperate with a flap connected to said end panel to effect efiicient sealing thereat.
  • a carton end closure comprising opposed first and second panels, first and second flaps hingedly connected to said first and second panels, respectively, said first flap having a width greater than said second flap and further having surface portions adjacent a free edge thereof adhesively secured in overlying relationship to said second flap, and out means of limited depth formed on the underside of said first flap, said out means being in part adjacent and parallel to a free edge of said second flap for permitting a portion of said first flap to remain secured to said second flap when said carton is opened.
  • the invention of claim 4 further comprising opposed third and fourth panels connected to said first and second panels and each having a flap connected thereto, said last mentioned flaps adhesively secured beneath said first flap, said third panel having a removable tap formed therein adjacent the flap connected to said third panel to facilitate opening of said end closure, said third flap having an edge thereof arranged to direct a force, utilized to remove the tap, toward said out means.
  • cut means is continuous and comprises a first cut portion arranged to intersect a free edge of said first flap and further arranged in diverging relationship therewith, a second portion substantially coinciding with a free edge of said second fiap and an arcuate portion arranged to extend towards a scoreline hingedly connecting said first flap to said first panel.
  • a one-piece carton blank comprising parallel first scorelines arranged to serially define a first side panel, a first end panel, a second side panel, a second end panel and a pair of parallel second scorelines arranged transversely with respect to said first scorelines to form closure flaps hingedly connected to each end of each panel, at least one cut means formed on one of said panels, said out means on said panel being arranged in parallel and slightly oifset relationship to the second scoreline which hingedly connects one of said closure flaps to said panel and being adjacent to one of the first scorelines which defines the panel, said cut means arranged to extend into said one panel to a limited depth and further arranged to effect a slight crushing of a corner of an end closure when a carton is formed.
  • a one-piece carton blank coated with a heat sealable coating comprising parallel first scorelines arranged to serially define a first side panel, a first end panel, a second side panel, a second end panel and a pair of parallel second scorelines arranged transversely with respect to said first scorelines to form closure flaps hingedly connected to each end of each panel, the flap on a first of said side panels being of a width equal to the length of the end panels, the other of said flaps on said side panels being of a width substantially less than the length of said end panels continuous cut means formed on the flaps on said first side panel, said out means arranged to a depth at least through the coating on said flap and including a straight portion extending from a free edge of said flap parallel to the scoreline which hingedly connects said flap to its side panel, said portion of said out further constructed and arranged to overlie and substantially coincide with a free edge of the flap connected to a second of said side panels when the blank is formed into a closed carton.
  • cut means includes a portion arranged to intersect in diverging relationship the free edge of said flap on said first panel and another portion which is arcuately shaped and arranged to extend from said straight portion toward the scoreline connecting said flap to said first side panel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)
  • Making Paper Articles (AREA)
US462589A 1965-06-09 1965-06-09 Carton Expired - Lifetime US3315871A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US462589A US3315871A (en) 1965-06-09 1965-06-09 Carton
GB16054/66A GB1106574A (en) 1965-06-09 1966-04-12 Carton
BE681100D BE681100A (forum.php) 1965-06-09 1966-05-16
SE7780/66A SE322726B (forum.php) 1965-06-09 1966-06-07
DEF49412A DE1298928B (de) 1965-06-09 1966-06-07 Aus vier laschenfoermigen Verschlussteilen bestehender Faltbehaelter-Endverschluss
NL6607937A NL6607937A (forum.php) 1965-06-09 1966-06-08
CH832366A CH462032A (de) 1965-06-09 1966-06-09 Endverschluss an einer Pappschachtel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US462589A US3315871A (en) 1965-06-09 1965-06-09 Carton

Publications (1)

Publication Number Publication Date
US3315871A true US3315871A (en) 1967-04-25

Family

ID=23836992

Family Applications (1)

Application Number Title Priority Date Filing Date
US462589A Expired - Lifetime US3315871A (en) 1965-06-09 1965-06-09 Carton

Country Status (7)

Country Link
US (1) US3315871A (forum.php)
BE (1) BE681100A (forum.php)
CH (1) CH462032A (forum.php)
DE (1) DE1298928B (forum.php)
GB (1) GB1106574A (forum.php)
NL (1) NL6607937A (forum.php)
SE (1) SE322726B (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD609090S1 (en) * 2007-03-13 2010-02-02 Laszlo Vajai Package for pollen filtering devices

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015148A (en) * 1933-12-08 1935-09-24 Hoague Sprague Corp Box-part and blank therefor
US2272203A (en) * 1938-06-09 1942-02-10 American Can Co Container
US2588996A (en) * 1948-06-10 1952-03-11 Robert F Snyder Box closure
US2751136A (en) * 1953-12-18 1956-06-19 Moore George Arlington Container blank and container
US3098600A (en) * 1961-08-24 1963-07-23 Roy S Sanford & Company Carton
US3136471A (en) * 1962-10-29 1964-06-09 Gen Mills Inc End closure comprised of liner and carton flaps
US3197109A (en) * 1962-07-31 1965-07-27 Kimberly Clark Co Cellulosic products
US3214079A (en) * 1964-07-13 1965-10-26 American Can Co Carton with tear-open end closure
US3262630A (en) * 1963-12-23 1966-07-26 Kapak Inc Box with pour opening

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1888571U (de) * 1964-02-27 Unilever N. V., Rotterdam (Niederlande) Schachtel
US2293060A (en) * 1939-01-24 1942-08-18 American Can Co Container
DE1914543U (de) * 1965-02-04 1965-04-22 Sig Schweiz Industrieges Fluessigkeitspackung bestehend aus einem innenbeutel und einer aeusseren quaderfoermigen kartonhuelle.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2015148A (en) * 1933-12-08 1935-09-24 Hoague Sprague Corp Box-part and blank therefor
US2272203A (en) * 1938-06-09 1942-02-10 American Can Co Container
US2588996A (en) * 1948-06-10 1952-03-11 Robert F Snyder Box closure
US2751136A (en) * 1953-12-18 1956-06-19 Moore George Arlington Container blank and container
US3098600A (en) * 1961-08-24 1963-07-23 Roy S Sanford & Company Carton
US3197109A (en) * 1962-07-31 1965-07-27 Kimberly Clark Co Cellulosic products
US3136471A (en) * 1962-10-29 1964-06-09 Gen Mills Inc End closure comprised of liner and carton flaps
US3262630A (en) * 1963-12-23 1966-07-26 Kapak Inc Box with pour opening
US3214079A (en) * 1964-07-13 1965-10-26 American Can Co Carton with tear-open end closure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD609090S1 (en) * 2007-03-13 2010-02-02 Laszlo Vajai Package for pollen filtering devices

Also Published As

Publication number Publication date
BE681100A (forum.php) 1966-11-16
SE322726B (forum.php) 1970-04-13
CH462032A (de) 1968-08-31
NL6607937A (forum.php) 1966-12-12
DE1298928B (de) 1969-07-03
GB1106574A (en) 1968-03-20

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