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US3057531A - Cartons for containing liquids or finely-divided materials - Google Patents

Cartons for containing liquids or finely-divided materials Download PDF

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Publication number
US3057531A
US3057531A US11700A US1170060A US3057531A US 3057531 A US3057531 A US 3057531A US 11700 A US11700 A US 11700A US 1170060 A US1170060 A US 1170060A US 3057531 A US3057531 A US 3057531A
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Prior art keywords
carton
strip
pourer
length
sides
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Expired - Lifetime
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US11700A
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Preen Robert Ernest
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West Virginia Pulp and Paper Co
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West Virginia Pulp and Paper Co
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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
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts

Definitions

  • a carton having two opposed sides in the form of trays with the upstanding edges of each tray extending away from the opposing side, the two opposed sides being bridged around their whole peripheries by the intermediate portion of a strip, the side margins of which overlap the upstanding edges of the opposed sides and are sealed thereto, and the strip further having end portions which extend in the same direction as and overlap each other and are sealed together around their side margins and ends and constitute a pourer for the contents of the carton when their ends are unsealed.
  • the two opposed sides of the carton may be of any convenient shape but preferably they are similar, substantially straight-sided figures, e.g. rectangular or trapezoidal, and in this case the pourer preferably extends from two adjacent corners of the two opposed sides.
  • the pourer may be situated at the end of the shorter of the two parallel sides of the trapezoids and the longer of the parallel sides may form the base of the carton.
  • the other corners of the two opposed sides may be rounded and at these corners, the upstanding edges may be slit and overlapped.
  • end portions of the strip and the adjoining parts of the intermediate portion of the strip may be weakened as by the provision of scored lines to facilitate opening of the pourer when its end is unsealed and the carton is squeezed at, or in the region of the pourer.
  • Unsealing of the pourer may be facilitated by weakening the end of the pourer adjacent the sealed end, eg by the provision of an interrupted scored line to allow the sealed end of the pourer to be ripped off.
  • junctions of the pourer with the ends of the intermediate portion of the strip may be provided with a fold line or fold lines, e.g. a scored line, and the pourer may be folded along these lines to lie along an end part of the intermediate portion of the strip.
  • FIGURE 1 is a perspective view of a first carton suitable for containing milk
  • FIGURE 2 is a plan of the first carton
  • FIGURE 3 is a side elevation of the first carton
  • FIGURE 4 shows a detail
  • FIGURE 5 shows a detail as viewed in the direction of FIGURE 2,
  • FIGURE 6 shows a blank from which one of the opposed sides is formed
  • FIGURES 7 and 8 are perspective views of a second carton suitable for containing milk.
  • the carton shown in FIGURES 1 to 5 comprises two opposed sides 11) in the form of trays with upstanding edges 11. As will be seen, the sides are approximately square in shape except that three of the corners are rounded. These sides 10 may be made, for example, by a pressing operation, and are made from thin cardboard or like fibrous material.
  • the remainder of the carton is formed from a continous strip 12. of the same material as the two sides 10 Patented Get. 9, 1962 ice but of slightly greater thickness, and may conveniently be considered as having an intermediate portion comprising a length 13 which forms the top of the carton, a length 14 which forms one end of the carton, a length 15 which forms the base of the carton and a length 16 which forms the remaining end of the carton, and two end portions 17, 18.
  • the lengths 13, 14, 15 and 16 of the strip 12 thus extend around the whole peripheries of the sides 10 and the extreme ends of the lengths 13 and '16 meet at the right-angled corners 19 of the sides 10.
  • the sides 10 are arranged with their upstanding edges 11 facing away from the opposing sides 10 of the carton and the upstanding edges 11 are overlapped and sealed with adhesive to the side margins of the lengths 13, 14, 15 and 16. i
  • the end portions 17 and 18 of the strip '12 extend in the same direction and overlap each other and are sealed together with adhesive along their side margins and at their ends.
  • the carton is filled through these end portions 17 and 18 before their ends are sealed. When thus sealed these end portions are folded about a fold line 20 to lie along the top 13 of the carton.
  • These end portions 17, 18 constitute a pourer 24 as will later be described.
  • FIGURE 6 shows a blank from which a side 10 is formed. This figure shows the blank viewed from approximately the same direction as the side 11 which is formed from it, is seen in FIGURES 1 and 4.
  • the line 11a constitutes the junction between the upstanding edges 11 and the fiat base of the side #10.
  • An interrupted scored line 22 is made across the end portions 17 and 118 just inwards from where the ends are sealed so that the ends of the end portions 17 and 18 may be removed by tearing along the line 22.
  • the material of which the carton is made may be waterproofed e.g. by the known process of applying a vinyl-coating or a coating of polyethylene. This treatment also renders the material of the carton suitable for heat-sealing of the two sides 10 to the strip '12 and sealing the lateral edges and ends of the end portions 17, 18.
  • the carton as described is particularly suitable for containing milk but may be used for containing other suitable liquids or finely-divided materials.
  • the depth of recess of the sides 10 %”.
  • the thickness of the material in this embodiment is 0.017" for the sides 10 and 0.020" for the strip 12. These thicknesses will of course depend on the quality of the material employed.
  • FIGURES 7 and 8 show a second milk carton which is generally similar in construction to the carton just described and the same numerals will be used for corresponding items.
  • the opposed sides 10 are trapezoidal in shape.
  • the length 14 of the strip 12 constitutes the base of the carton and the length 13 of the strip 12 slopes inwardly.
  • the pourer is situated at the end of length 16.
  • Scored lines 50 and 51 are provided on the end portion 18 and extend into the length 16 and similar scored lines 52, 53 are provided on the end portion 17 and extend into the length 13 to assist opening of the pourer 24.
  • the junction of the pourer with the lengths 13 and 16 and upstanding edges 11 of sides 10 is arranged in a similar manner to that of the first carton.
  • a carton for containing and dispensing liquid or finely divided material comprising:
  • a carton for containing and dispensing liquid or finely divided material comprising:
  • a carton for containing and dispensing liquid of finely divided material comprising:
  • said intermediate portion comprising in sequence, a length adjacent to said first end portion forming the top of the carton, a length forming an end of the carton, a length forming the base, and a length adjacent to the second said end portion forming the remaining end of the carton,

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

Description

Oct. 9, 1962 R. E. PREEN 3,057,531
CARTONS FOR CONTAINING LIQUIDS OR FINELY-DIVIDED MATERIALS Filed Feb. 29, 1960 2 SheetsSheet 1 f'flrefiar fiaierfl'ffreere.
J! waim, CA4, 6 mm was Awe/0w R. E. PREEN Oct. 9, 1962 v CARTONS FOR CONTAINING LIQUIDS OR FINELY-DIVIDED MATERIALS Filed Feb. 29, 1960 2 Sheets-Sheet 2 fire/272 fiaierii'freerg United States Patent 3,057,531 CARTONS FUR CGNTAINING LIQUIDS OR FINELY-DIVIDED MATERIALS Robert Ernest Preen, Bristol, England, assignor, by mesne assignments, to West Virginia Pulp and Paper Company, New York, N.Y., a corporation of Delaware Filed Feb. 29, 196i), Ser. No. 11,700 Claims priority, application GreatBritain Mar. 13, 1959 3 Claims. (Cl. 229-7) This invention relates to cartons for containing liquids or finely-divided materials.
According to the present invention there is provided a carton having two opposed sides in the form of trays with the upstanding edges of each tray extending away from the opposing side, the two opposed sides being bridged around their whole peripheries by the intermediate portion of a strip, the side margins of which overlap the upstanding edges of the opposed sides and are sealed thereto, and the strip further having end portions which extend in the same direction as and overlap each other and are sealed together around their side margins and ends and constitute a pourer for the contents of the carton when their ends are unsealed.
The two opposed sides of the carton may be of any convenient shape but preferably they are similar, substantially straight-sided figures, e.g. rectangular or trapezoidal, and in this case the pourer preferably extends from two adjacent corners of the two opposed sides. Thus, if the opposed sides are trapezoids the pourer may be situated at the end of the shorter of the two parallel sides of the trapezoids and the longer of the parallel sides may form the base of the carton. The other corners of the two opposed sides may be rounded and at these corners, the upstanding edges may be slit and overlapped.
The end portions of the strip and the adjoining parts of the intermediate portion of the strip may be weakened as by the provision of scored lines to facilitate opening of the pourer when its end is unsealed and the carton is squeezed at, or in the region of the pourer.
Unsealing of the pourer may be facilitated by weakening the end of the pourer adjacent the sealed end, eg by the provision of an interrupted scored line to allow the sealed end of the pourer to be ripped off.
The junctions of the pourer with the ends of the intermediate portion of the strip may be provided with a fold line or fold lines, e.g. a scored line, and the pourer may be folded along these lines to lie along an end part of the intermediate portion of the strip.
Two cartons made in accordance with the present invention will now be described, by way of example, with reference to the accompanying drawings, of which:
FIGURE 1 is a perspective view of a first carton suitable for containing milk,
FIGURE 2 is a plan of the first carton,
FIGURE 3 is a side elevation of the first carton,
FIGURE 4 shows a detail,
FIGURE 5 shows a detail as viewed in the direction of FIGURE 2,
FIGURE 6 shows a blank from which one of the opposed sides is formed, and
FIGURES 7 and 8 are perspective views of a second carton suitable for containing milk.
The carton shown in FIGURES 1 to 5 comprises two opposed sides 11) in the form of trays with upstanding edges 11. As will be seen, the sides are approximately square in shape except that three of the corners are rounded. These sides 10 may be made, for example, by a pressing operation, and are made from thin cardboard or like fibrous material.
The remainder of the carton is formed from a continous strip 12. of the same material as the two sides 10 Patented Get. 9, 1962 ice but of slightly greater thickness, and may conveniently be considered as having an intermediate portion comprising a length 13 which forms the top of the carton, a length 14 which forms one end of the carton, a length 15 which forms the base of the carton and a length 16 which forms the remaining end of the carton, and two end portions 17, 18. The lengths 13, 14, 15 and 16 of the strip 12 thus extend around the whole peripheries of the sides 10 and the extreme ends of the lengths 13 and '16 meet at the right-angled corners 19 of the sides 10.
The sides 10 are arranged with their upstanding edges 11 facing away from the opposing sides 10 of the carton and the upstanding edges 11 are overlapped and sealed with adhesive to the side margins of the lengths 13, 14, 15 and 16. i
The end portions 17 and 18 of the strip '12 extend in the same direction and overlap each other and are sealed together with adhesive along their side margins and at their ends. The carton is filled through these end portions 17 and 18 before their ends are sealed. When thus sealed these end portions are folded about a fold line 20 to lie along the top 13 of the carton. These end portions 17, 18 constitute a pourer 24 as will later be described.
At the square corners 19 the upstanding edges 11 of the sides 11] are folded as shown in FIGURE 4 and the triangular-shaped projections 21 of double thickness extend between the side margins of the end portions 17, 18.
FIGURE 6 shows a blank from which a side 10 is formed. This figure shows the blank viewed from approximately the same direction as the side 11 which is formed from it, is seen in FIGURES 1 and 4. The line 11a constitutes the junction between the upstanding edges 11 and the fiat base of the side #10. The two triangular portions 11b and are folded together about line 11d to form the triangular-shaped projection 21 of double thickness which extends between the side margins of the end portions 17, 18 as shown in FIGURE 4. 7 An interrupted scored line 22 is made across the end portions 17 and 118 just inwards from where the ends are sealed so that the ends of the end portions 17 and 18 may be removed by tearing along the line 22.
The material of which the carton is made may be waterproofed e.g. by the known process of applying a vinyl-coating or a coating of polyethylene. This treatment also renders the material of the carton suitable for heat-sealing of the two sides 10 to the strip '12 and sealing the lateral edges and ends of the end portions 17, 18.
To open the carton the sealed-together ends of the pourer 24 are torn off along the line 22 and the pourer is lifted until it occupies the portion shown in FIGURE 1. The pourer is now opened by lateral pressure at the region of the arrows 25 exerted by the thumb and tor finger. To assist opening of the pourer further scored lines 26, 29 are provided extending from the end portion 18 on to the length 16 (FIGURE 1) and scored lines 27 are provided on the end portion 17, scored lines 32 extending from the end portion 17 on to the length 13 and scored lines 30, 31 and 33 are provided on the length 13 (FIGURE 5, which shows part of the carton as viewed in FIGURE 2 but with the pourer turned through so that end portion 17 is exposed and conceals end portion 18). By now tipping the cart-on (clockwise in the FIGURE 3 View) the contents may be poured out through the pourer 24.
The carton as described is particularly suitable for containing milk but may be used for containing other suitable liquids or finely-divided materials.
The carton as shown in FIGURES 1 to 5 and suitable for containing 1 quart (U.S. measure) of milk has the following nominal dimensions: length (i.e. distance from length 16 to length 14 of strip 12) =4%", height (i.e. distance from length 13 to length 15 of strip 12):4%, Width of strip 12=3%. The depth of recess of the sides 10=%". The thickness of the material in this embodiment is 0.017" for the sides 10 and 0.020" for the strip 12. These thicknesses will of course depend on the quality of the material employed.
FIGURES 7 and 8 show a second milk carton which is generally similar in construction to the carton just described and the same numerals will be used for corresponding items.
In this construction the opposed sides 10 are trapezoidal in shape. The length 14 of the strip 12 constitutes the base of the carton and the length 13 of the strip 12 slopes inwardly. The pourer is situated at the end of length 16.
Scored lines 50 and 51 are provided on the end portion 18 and extend into the length 16 and similar scored lines 52, 53 are provided on the end portion 17 and extend into the length 13 to assist opening of the pourer 24.
The junction of the pourer with the lengths 13 and 16 and upstanding edges 11 of sides 10 is arranged in a similar manner to that of the first carton.
What I claim as my invention and desire to secure by Letters Patent is:
1. A carton for containing and dispensing liquid or finely divided material comprising:
(a) two opposed sides of sheet material in the form of trays with the upstanding edges of each tray extending away from the opposite side, and
(b) a base, two ends, a top, and a spout formed from a one-piece strip of sheet material comprising an end portion, an intermediate portion, and another end portion,
() the said intermediate portion extending around the whole peripheries of the said opposed sides with the side margins of said intermediate portion overlapping the said upstanding edges and being sealed thereto to form the car-ton body, and
(d) the two end portions of said one-piece strip meeting at right angles to each other at a corner of the carton and extending away therefrom in the same direction in overlapping relationship and being sealed together along the side margins to form a spout adapted to be sealed at the end thereof to provide a leakproof carton.
2. A carton for containing and dispensing liquid or finely divided material comprising:
(a) two opposed sides of fibrous sheet material in the form of trays with the upstanding edges of each tray extending away from the opposite side,
(b) a base, two ends, a top, and a spout formed from a one-piece strip of fibrous sheet material comprising an end portion, an intermediate portion, and another end portion, and
(c) a heat-sealable coating on the inner surfaces of the one-piece strip and the opposed sides,
(d) the said intermediate portion extending around the whole peripheries of the said opposed sides with the side margins of said intermediate portion overlapping the said upstanding edges and being heat-sealed thereto to form a carton free of any raw edges of fibrous sheet material inside the carton, and
(e) the two end portions of said one-piece strip meeting at right angles to each other at a corner of the carton and extending away therefrom in the same direction in overlapping relationship and being heatsealed together along the side margins to form a spout adapted to be sealed at the end thereof to provide a leakproof carton.
3. A carton for containing and dispensing liquid of finely divided material comprising:
(a) two opposed sides of fibrous sheet material in the form of trays with the upstanding edges of each tray extending away from the opposite side,
(b) a base, two ends, a top, and a spout formed from a one-piece strip of fibrous sheet material comprising an end portion, an intermediate portion and another end portion,
(c) said intermediate portion comprising in sequence, a length adjacent to said first end portion forming the top of the carton, a length forming an end of the carton, a length forming the base, and a length adjacent to the second said end portion forming the remaining end of the carton,
(d) a heat-sealable coating on the inner surfaces of the one-piece strip and the opposed sides,
(e) the said intermediate portion extending around the whole peripheries of the said opposed sides with the side margins of said intermediate portion overlapping the said upstanding edges and being sealed thereto to form the carton body, free of any raw edges of fibrous material inside the carton, and
(f) the two end portions of said one-piece strip meeting at right angles to each other at the corner of the carton where the said top and the said remaining end meet, and
(g) the said two end portions extending away from said corner in the same direction in overlapping relationship, being sealed together along the side margins, and having a plurality of score lines to form a spout adapted to be sealed at the end thereof after filling and thereafter unsealed at will and to be opened for pouring by the application of oppositely directed forces applied transversely thereof.
References Cited in the file of this patent UNITED STATES PATENTS 2,097,647 Scott Nov. 2, 1937 2,233,704 Hohl et al. Mar. 4, 1941 2,464,278 Wilson Mar. 15, 1949 2,554,050 Neubeck May 22, 1951 2,690,288 Allen et al. Sept. 28, 1954 FOREIGN PATENTS 95,342 Sweden Feb. 2, 1939
US11700A 1959-03-13 1960-02-29 Cartons for containing liquids or finely-divided materials Expired - Lifetime US3057531A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175749A (en) * 1963-04-17 1965-03-30 Continental Can Co Squeeze open pour spout for a carton
US3190531A (en) * 1961-10-26 1965-06-22 Holmstrom Kjell Ingvar Container
US3237838A (en) * 1963-05-06 1966-03-01 Continental Can Co Single and multi-blank cartons
US3333684A (en) * 1965-03-04 1967-08-01 Union Camp Corp Display package having a channel for fluid dispensing to the outside
US3351260A (en) * 1965-12-23 1967-11-07 Lee Drechsler Dispensing container
US3524578A (en) * 1968-07-30 1970-08-18 Lever Brothers Ltd Container with squeeze open dispensing spout
US3642189A (en) * 1969-08-29 1972-02-15 Kema Nord Ab Bags provided with closing and carrying device
US4799619A (en) * 1987-03-25 1989-01-24 Lee Ki Seok Drinking fluids carton
US5118036A (en) * 1990-07-13 1992-06-02 Tetra Pak Holdings Sa Packaging container and material for manufacture of the same
EP1385750A1 (en) * 2001-03-29 2004-02-04 Rachael Pty Ltd. Bag with handle insert and reclosable by folding
US20230227204A1 (en) * 2020-09-29 2023-07-20 Great Stuff Design Ltd. Container and container blanks with integral retractable pouring spout

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334804A (en) * 1965-12-20 1967-08-08 American Packaging Corp Dispenser package
DE3065017D1 (en) * 1979-05-08 1983-11-03 Tetra Pak Int Packing containers with pouring spout
US4620665A (en) * 1983-08-18 1986-11-04 Nathaniel H. Garfield Container with integral toggle closure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2097647A (en) * 1936-09-21 1937-11-02 Audrey K Scott Closure for paper containers
US2233704A (en) * 1938-07-02 1941-03-04 Owens Illinois Glass Co Container
US2464278A (en) * 1945-04-02 1949-03-15 Kimberly Stuart Container and method of making same
US2554050A (en) * 1948-12-17 1951-05-22 Gustave A Neubeck Dispensing container with measuring extension outlets
US2690288A (en) * 1949-08-01 1954-09-28 American Can Co Fiber container with side seam opening and reclosing feature

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2097647A (en) * 1936-09-21 1937-11-02 Audrey K Scott Closure for paper containers
US2233704A (en) * 1938-07-02 1941-03-04 Owens Illinois Glass Co Container
US2464278A (en) * 1945-04-02 1949-03-15 Kimberly Stuart Container and method of making same
US2554050A (en) * 1948-12-17 1951-05-22 Gustave A Neubeck Dispensing container with measuring extension outlets
US2690288A (en) * 1949-08-01 1954-09-28 American Can Co Fiber container with side seam opening and reclosing feature

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190531A (en) * 1961-10-26 1965-06-22 Holmstrom Kjell Ingvar Container
US3175749A (en) * 1963-04-17 1965-03-30 Continental Can Co Squeeze open pour spout for a carton
US3237838A (en) * 1963-05-06 1966-03-01 Continental Can Co Single and multi-blank cartons
US3333684A (en) * 1965-03-04 1967-08-01 Union Camp Corp Display package having a channel for fluid dispensing to the outside
US3351260A (en) * 1965-12-23 1967-11-07 Lee Drechsler Dispensing container
US3524578A (en) * 1968-07-30 1970-08-18 Lever Brothers Ltd Container with squeeze open dispensing spout
US3642189A (en) * 1969-08-29 1972-02-15 Kema Nord Ab Bags provided with closing and carrying device
US4799619A (en) * 1987-03-25 1989-01-24 Lee Ki Seok Drinking fluids carton
US5118036A (en) * 1990-07-13 1992-06-02 Tetra Pak Holdings Sa Packaging container and material for manufacture of the same
EP1385750A1 (en) * 2001-03-29 2004-02-04 Rachael Pty Ltd. Bag with handle insert and reclosable by folding
US20040136619A1 (en) * 2001-03-29 2004-07-15 Spork Philip Bruce Bag with handle insert and reclosable by folding
EP1385750A4 (en) * 2001-03-29 2004-12-22 Rachael Pty Ltd Bag with handle insert and reclosable by folding
US7537387B2 (en) 2001-03-29 2009-05-26 Philip Bruce Spork Bag with handle insert and reclosable by folding
US20230227204A1 (en) * 2020-09-29 2023-07-20 Great Stuff Design Ltd. Container and container blanks with integral retractable pouring spout
US11767146B2 (en) * 2020-09-29 2023-09-26 Great Stuff Design Ltd. Container and container blanks with integral retractable pouring spout

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