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US3884350A Expired / Lapsed US ⏱️ 0.0 years remaining

Packaging carton

Assignee: Ifoverken AB
•
Filing: 1972-11-17
•
Granted: 1975-05-20
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Expires: 1992-11-17
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Abstract

Abstract A parallelepipedic packaging carton having at the end thereof an entrance opening closed by inwardly directed flaps is provided with additional inwardly directed flaps engaging said closing flaps to prevent them from folding outwardly but permitting their folding inwardly.

Inventors

  • 👤 Sten Gunnar Johansson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 13:49
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/10; B65D5/103; B65D5/42; B65D5/4204; B65D5/72; B65D5/725; Y; Y10; Y10S; Y10S206/00; Y10S206/806

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 230 words
A parallelepipedic packaging carton having at one side four flaps extending, from respective ones of four edges which together define a rectangle, obliquely into the interior of the container leaving a substantial opening at the center of said one side, each of first and second of the flaps which extend from opposite ones of said edges having, proceeding from the root of the flap towards its tip, a sudden reduction in width whereby two shoulders are formed at opposite extremities of said width and each of the other flaps, proceeding from the root of the flap towards its tip, having a progressive reduction in width followed by a sudden increase in width where there are two ears extending away from one another, said flaps interlocking with one another to prevent any flap swinging out of the carton, said first and second flaps being displaceable inwardly by an article wider than said opening, passing through the opening into the carton, after which the opening automatically narrows by reverse movement of the first and second flaps to prevent the article coming out of the carton through the opening, the carton being further distinguished in that that side thereof opposite the aforesaid one side is formed by four interlocking flaps which are substantially parallel to one another and together form an end wall perpendicular to four of the other sides of the carton.
Claim 2
Dependent Claim 230 words
A parallelepipedic packaging carton having at one side four flaps extending, from respective ones of four edges which together define a rectangle, obliquely into the interior of the container leaving a substantial opening at the center of said one side, each of first and second of the flaps which extend from opposite ones of said edges having, proceeding from the root of the flap towards its tip, a sudden reduction in width whereby two shoulders are formed at opposite extremities of said width and each of the other flaps, proceeding from the root of the flap towards its tip, having a progressive reduction in width followed by a sudden increase in width where there are two ears extending away from one another, said flaps interlocking with one another to prevent any flap swinging out of the carton, said first and second flaps being displaceable inwardly by an article wider than said opening, passing through the opening into the carton, after which the opening automatically narrows by reverse movement of the first and second flaps to prevent the article coming out of the carton through the opening, the carton being further distinguished in that that side thereof opposite the aforesaid one side is formed by four interlocking flaps which are substantially parallel to one another and together form an end wall perpendicular to four of the other sides of the carton.
Claim 3
Dependent Claim 278 words
A packaging carton having parallelepipedic shape for packaging a single object or a row of similar objects to extend between the walls of the carton from one of a first pair of opposite short sides to the other side; an entrance opening being provided in one of said opposite short sides; an opening for withdrawing contents located partly in the one and partly in the other one of two sides of the carton bordering on each other and extending in the longitudinal direction of a row of objects in the carton; said entrance being closed by a pair of closing flaps directed obliquely inwardly into the carton and extending along one pair of opposite margins of said entrance opening; a pair of locking flaps which are directed obliquely inwardly being provided along a second pair of opposite sides; said locking flaps engaging with said closing flaps in order to prevent said closing flaps from folding outwardly from the carton but permitting them to be folded inwardly in the carton while an object is introduced through said entrance opening; wherein each closing flap extends away from a hinge line and each has two shoulders facing away from said hinge line, said shoulders being for engagement with said locking flaps, and; wherein each locking flap extends in tapering manner away from the hinge line followed by a sudden increase in width to provide shoulders for engagement with the shoulders of said closing flap, and thereby the one of the short sides having said entrance opening being shaped as a hopper which has a parallelepipedic entrance opening the sides of which are capable of being opened and closed by spring action.
Claim 4
Dependent Claim 278 words
A packaging carton having parallelepipedic shape for packaging a single object or a row of similar objects to extend between the walls of the carton from one of a first pair of opposite short sides to the other side; an entrance opening being provided in one of said opposite short sides; an opening for withdrawing contents located partly in the one and partly in the other one of two sides of the carton bordering on each other and extending in the longitudinal direction of a row of objects in the carton; said entrance being closed by a pair of closing flaps directed obliquely inwardly into the carton and extending along one pair of opposite margins of said entrance opening; a pair of locking flaps which are directed obliquely inwardly being provided along a second pair of opposite sides; said locking flaps engaging with said closing flaps in order to prevent said closing flaps from folding outwardly from the carton but permitting them to be folded inwardly in the carton while an object is introduced through said entrance opening; wherein each closing flap extends away from a hinge line and each has two shoulders facing away from said hinge line, said shoulders being for engagement with said locking flaps, and; wherein each locking flap extends in tapering manner away from the hinge line followed by a sudden increase in width to provide shoulders for engagement with the shoulders of said closing flap, and thereby the one of the short sides having said entrance opening being shaped as a hopper which has a parallelepipedic entrance opening the sides of which are capable of being opened and closed by spring action.
Claim 5
Dependent Claim 34 words
A packaging carton as claimed in claim 2, wherein two openings for withdrawing the contents are provided each on one side of the carton after one another in the longitudinal direction of the row.
Claim 6
Dependent Claim 278 words
A packaging carton having parallelepipedic shape for packaging a single object or a row of similar objects to extend between the walls of the carton from one of a first pair of opposite short sides to the other side; an entrance opening being provided in one of said opposite short sides; an opening for withdrawing contents located partly in the one and partly in the other one of two sides of the carton bordering on each other and extending in the longitudinal direction of a row of objects in the carton; said entrance being closed by a pair of closing flaps directed obliquently inwardly into the carton and extending along one pair of opposite margins of said entrance opening; a pair of locking flaps which are directed obliquely inwardly being provided along a second pair of opposite sides; said locking flaps engaging with said closing flaps in order to prevent said closing flaps from folding outwardly from the carton but permitting them to be folded inwardly in the carton while an object is introduced through said entrance opening; wherein each closing flap extends away from a hinge line and each has two shoulders facing away from said hinge line, said shoulders being for engagement with said locking flaps, and; wherein each locking flap extends in tapering manner away from the hinge line followed by a sudden increase in width to provide shoulders for engagement with the shoulders of said closing flaps, and thereby the one of the short sides having said entrance opening being shaped as a hopper which has a parallelepipedic entrance opening the sides of which are capable of being opened and closed by spring action.
Claim 7
Dependent Claim 278 words
A packaging carton having parallelepipedic shape for packaging a single object or a row of similar objects to extend between the walls of the carton from one of a first pair of opposite short sides to the other side; an entrance opening being provided in one of said opposite short sides; an opening for withdrawing contents located partly in the one and partly in the other one of two sides of the carton bordering on each other and extending in the longitudinal direction of a row of objects in the carton; said entrance being closed by a pair of closing flaps directed obliquently inwardly into the carton and extending along one pair of opposite margins of said entrance opening; a pair of locking flaps which are directed obliquely inwardly being provided along a second pair of opposite sides; said locking flaps engaging with said closing flaps in order to prevent said closing flaps from folding outwardly from the carton but permitting them to be folded inwardly in the carton while an object is introduced through said entrance opening; wherein each closing flap extends away from a hinge line and each has two shoulders facing away from said hinge line, said shoulders being for engagement with said locking flaps, and; wherein each locking flap extends in tapering manner away from the hinge line followed by a sudden increase in width to provide shoulders for engagement with the shoulders of said closing flaps, and thereby the one of the short sides having said entrance opening being shaped as a hopper which has a parallelepipedic entrance opening the sides of which are capable of being opened and closed by spring action.

References Cited (Backward Citations)

US1806149A Cited
US2151733A Cited
US2593689A Cited
US2614883A Cited
US3178096A Cited
US3253769A Cited
US3658236A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-05-19 1978-11-18 1979-05-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-05-19 1982-11-18 1983-05-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-05-19 1986-11-18 1987-05-20 $7700.00 Window Closed / Lapsed

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