Carton blank and carton
AssigneeGraphic Packaging Corporation
InventorRaymond S. Kastanek
Life of this patent
Estimating the term…
Abstract
A carton formed from a carton blank comprising a unitary sheet of material hvaing cut out portions, cut lines, fold lines and perforated lines to form various sections which are folded together to form a carton having a hinged lid which may be moved between closed and opened positions to remove materials from the carton and which lid is retained in the closed position by a frictional fit between portions of the lid and a front panel portion of the carton.
Claims18
A carton blank comprising:
- a unitary sheet of material;
- said unitary sheet of material having a left side edge, a right side edge, a top edge and a bottom edge, said left and right side edges being perpendicular to said top and bottom edges;
- a first plurality of spaced apart cut and fold lines extending from said top edge to said bottom edge;
- a second plurality of spaced apart cut and fold lines extending from said top edge to said bottom edge;
- said first and second plurality of cut and fold lines dividing said unitary sheet of material into a center section, a left side section and a right side section;
- said center section having a plurality of transversely extending fold lines for dividing said center section from said top edge to said bottom edge into a lid front panel portion, a lid top panel portion, a lid back panel portion, a back panel portion, a bottom panel portion and a front panel portion;
- each of said left and right side sections having cut out portions to divide each of said left and right side sections into first left and right side sub-sections, second left and right side sub-sections and third left and right side sub-sections;
- said first left and right side sub-sections comprising left and right lid outside side panel portions integral with said lid front panel portion;
- said second left and right side sub-sections comprising left and right lid top panel portion reinforcing tabs, left and right lid inside side panel portions, left and right inside side panel portions and left and right bottom panel portion reinforcing tabs;
- and
- said third left and right sub-sections comprising left and right outside side panel portions.
A method for forming a carton so that it can be filled with material using a carton blank which comprises a unitary sheet of material;
- said unitary sheet of material having a left side edge, a right side edge, a top edge and a bottom edge, said left and right side edges being perpendicular to said top and bottom edges;
- a first plurality of spaced apart cut and fold lines extending from said top edge to said bottom edge;
- a second plurality of spaced apart cut and fold lines extending from said top edge to said bottom edge;
- said first and second plurality of cut and fold lines dividing said unitary sheet of material into a center section, a left side section and a right side sections;
- said center section having a plurality of transversely extending fold lines for dividing said center section from said top edge to said bottom edge into a lid front panel portion, a lid top panel portion, a lid back panel portion, a back panel portion, a bottom panel portion and a front panel portion;
- each of said left and right side sections having cut out portions to divide each of said left and right side sections into first left and right side sub-sections, second left and right side sub-sections and third left and right side sub-sections;
- said first left and right side sub-sections comprising left and right lid outside side panel portions integral with said lid front panel portion;
- said second left and right side sub-sections comprising left and right lid top panel portions reinforcing tabs, left and right lid inside side panel portions, left and right inside side panel portions and left and right bottom panel portion reinforcing tabs;
- said third left and right sub-sections comprising left and right outside side panel portions;
- said left and right lid top panel portion reinforcing tabs being separated from said center section by cut lines;
- said left and right bottom panel portion reinforcing tabs being separated from said center section by cut lines;
- said left and right side lid top panel portion reinforcing tabs being integral with said left and right lid inside side panel portions and having a fold line formed therebetween;
- said left and right lid inside side panel portions connected to said left and right inside side panel portions by a severable perforated line;
- said left and right side bottom panel portion reinforcing tabs being integral with said left and right inside side panels and having a fold line formed therebetween;
- said left and right lid inside side panel portions being integral with said lid front panel portion and having fold lines therebetween;
- said left and right inside side panel portions being integral with said back panel portion and having fold lines therebetween;
- and said left and right outside side panel portions being integral with said front panel and having fold lines therebetween comprising the steps of:
- folding said left and right inside side panels and said left and right lid side reinforcing tabs around said fold lines between them and said back panel portion through 90 degrees with said left and right side lid top panel portion reinforcing tabs and said left and right side bottom panel reinforcing tabs moving therewith;
- folding said left and right bottom panel portion reinforcing tabs through 90 degrees;
- securing said left and right bottom panel reinforcing tabs to said bottom panel portion together;
- folding said front panel portion through 90 degrees so that said left and right outside side panel portions move therewith;
- folding said left and right outside side panel portions through 90 degrees so that they are in superposed relationship with said left and right inside side panel portions;
- and
- securing said left and right inside and outside side panel portions together.
A carton for holding material comprising:
- front and back panel portions having the same height and width;
- opposite outside side panel portions having a height and width, each of which being less than said height and width of said front and back panel portion;
- said opposite outside side panel portions being integral with and joined to opposite sides of said front panel portion by folds;
- opposite inside side panel portions having a height greater than said height of said opposite outside side panel portions and a width substantially the same as said width of said opposite outside side panel portions;
- said opposite inside side panel portions being integral with and joined to opposite sides of said back panel portion by folds;
- a bottom panel portion having first width equal to said width of said front and back panel portions and a second width equal to said width of said opposite side panel portions;
- said front and back panel portions, said opposite outside and inside side panel portions and said bottom panel portion connected together to form a carton having an open top portion;
- each of said opposite inside side panel portions having a height at said folds between said back panel portion and said opposite inside side panel portions that is greater than the height of said opposite outside side panel portions at said folds between said front panel portion and said opposite outside side panel portions;
- a lid portion hingedly secured to said back panel portion for permitting movement of said lid portion between closed and opened positions;
- securing means for securing together said outside side panel portions and said inside side panel portions to form laminates thereof;
- and
- said opposite outside side panel portions being dimensionally smaller than said opposite inside side panel portions to form generally transversely extending abutment edges on said opposite outside side panel portions.
Dependencies are inferred from the claim text.