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US3799425A Expired / Lapsed US ⏱️ 0.0 years remaining

Blank for making containers and container with top formed by curved surfaces

Assignee: ARKAY PACKAGING CORP
•
Filing: 1972-01-03
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Granted: 1974-03-26
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Expires: 1992-01-03
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Abstract

Abstract A container which can be formed from a single paperboard blank divided by fold lines, includes a plurality of side panels, and a plurality of outer top panels each of which extends upwardly from one of the side panels and has two curved edges that converge to form a substantially pointed end. A plurality of inner top panels extend from the curved edges of the outer top panels. The outer top panels can be bent inwardly to assume a curved orientation so that their respective pointed ends are brought together, and the inner top panels are folded downwardly toward the interior of the container. The top of the container thus made is formed by curved surfaces.

Inventors

  • 👤 E Fanter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 01:24
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/4204; B65D5/02; B65D5/06

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 137 words
A container made from at least one sheet of folded material having a top formed by curved surfaces comprising a plurality of side panels, a plurality of outer top panels each of which extends upwardly from one of the side panels and has two curved edges defined by fold lines that converge to form a substantially pointed end, and a plurality of inner top panels each of which extends from a curved edge of an outer top panel, said inner top panels having innermost edges adjacent the innermost edges of adjacent inner top panels, the outer top panels being bent inwardly so that their respective pointed ends are brought together and each outer top panel forms a curved surface, and the inner top panels extending downwardly and inwardly toward the interior of the container thus defining indentations.
Claim 2
Dependent Claim 137 words
A container made from at least one sheet of folded material having a top formed by curved surfaces comprising a plurality of side panels, a plurality of outer top panels each of which extends upwardly from one of the side panels and has two curved edges defined by fold lines that converge to form a substantially pointed end, and a plurality of inner top panels each of which extends from a curved edge of an outer top panel, said inner top panels having innermost edges adjacent the innermost edges of adjacent inner top panels, the outer top panels being bent inwardly so that their respective pointed ends are brought together and each outer top panel forms a curved surface, and the inner top panels extending downwardly and inwardly toward the interior of the container thus defining indentations.
Claim 3
Dependent Claim 16 words
The container of claim 1, wherein the inner top panels are bent to form curved surfaces.
Claim 4
Dependent Claim 16 words
The container of claim 1, wherein there are four side panels and four outer top panels.
Claim 5
Dependent Claim 20 words
The container of claim 1, wherein there are four side panels, four outer top panels, and eight inner top panels.
Claim 6
Dependent Claim 30 words
The container of claim 1, wherein the lower edges of at least some inner top panels are divided from the lower edges of other inner top panels by fold lines.
Claim 7
Dependent Claim 31 words
The container of claim 1, wherein each outer top panel and the side panel to which it is attached form a continuous surface that is not interrupted by a fold line.
Claim 8
Dependent Claim 40 words
The container of claim 1 further comprising a means for securing the outer top panels in a curved orientation with their respective pointed ends brought together, said securing means being attached to two or more of the inner top panels.
Claim 9
Dependent Claim 44 words
The container of claim 7, wherein said securing means comprises two interlocking tabs that extend respectively from oppositely disposed inner top panel, each interlocking tab being folded to double its thickness and prevented from sliding past the other interlocking tab by its double thickness.
Claim 10
Dependent Claim 19 words
The container of claim 1, wherein the container is made from one integrally formed blank divided by fold lines.
Claim 11
Dependent Claim 184 words
A blank that can be folded to make a container comprising a plurality of side panels, a plurality of outer top panels each of which extends from one of the side panels and has two curved edges defined by fold lines that converge to form a substantially pointed end, a plurality of inner top panels each of which extends from a curved edge of an outer top panel, at least two tabs which extend from inner panels for securing the outer top panels in a curved orientation with their respective pointed ends brought together when the blank is folded to form a container, and at least some inner top panels being attached to other inner top panels that extend from different outer top panels, the attached inner top panels being divided from each other by fold lines, each panel being proportioned so that the outer top panels can be bent inwardly with their respective pointed ends brought together and the inner top panels can be folded downwardly toward the interior of the container to provide a top for the container formed by curved surfaces.
Claim 12
Dependent Claim 184 words
A blank that can be folded to make a container comprising a plurality of side panels, a plurality of outer top panels each of which extends from one of the side panels and has two curved edges defined by fold lines that converge to form a substantially pointed end, a plurality of inner top panels each of which extends from a curved edge of an outer top panel, at least two tabs which extend from inner panels for securing the outer top panels in a curved orientation with their respective pointed ends brought together when the blank is folded to form a container, and at least some inner top panels being attached to other inner top panels that extend from different outer top panels, the attached inner top panels being divided from each other by fold lines, each panel being proportioned so that the outer top panels can be bent inwardly with their respective pointed ends brought together and the inner top panels can be folded downwardly toward the interior of the container to provide a top for the container formed by curved surfaces.
Claim 13
Dependent Claim 22 words
The blank of claim 10 further comprising a series of perforations along the fold lines that separate the attached inner top panels.
Claim 14
Dependent Claim 20 words
The blank of claim 10, wherein there are four side panels, four outer top panels, and eight inner top panels.
Claim 15
Dependent Claim 45 words
The blank of claim 10, wherein each of said tabs is divided by a fold line so that it can be folded to double its thickness and is, thus prevented from sliding past the other tab when the blank is folded to form a container.

References Cited (Backward Citations)

US1891839A Cited
US2311137A Cited
CH262693A Cited
CH262141A Cited
US2769588A Cited
FR1307317A Cited
US3377015A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-03-25 1977-09-24 1978-03-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-03-25 1981-09-24 1982-03-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-03-25 1985-09-24 1986-03-26 $7700.00 Window Closed / Lapsed

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