Paperboard blister pack and manufacturing method
View Patent ↗A package for containing a product includes a face card and a tray sealed to a rear surface of the face card, The tray includes a rectangular bottom portion, opposing side walls extending from respective sides of the bottom portion, first and second side flanges extending from outer edges of the side walls, and opposing end walls extending from respective ends of the bottom portion. In this tray, each end wall is configured with opposing lateral edges and opposing corner flaps extending from those lateral edges. First and second end flanges extend from outer edges of the end walls and are adhered to respective side flanges. The corner flaps are adhered to respective surfaces of the opposing side walls.
1 . A package for containing a product, the package comprising:
a face card; and
a tray sealed to a rear surface of the face card, the tray comprising:
a rectangular bottom portion;
opposing side walls extending from respective sides of the bottom portion;
first and second side flanges extending from outer edges of the side walls;
opposing end walls extending from respective ends of the bottom portion wherein a pull tab extending outward from one of the first and second side flanges,
wherein each end wall includes opposing corner flaps extending from lateral edges of the end wall,
each corner flap comprising an angled free edge and an arcuate free edge and being folded inward toward an interior of the tray and adhered to an inner surface of a respective side wall,
the adhered corner flaps overlapping the respective side walls to resist separation of the side walls from the end walls during handling; and
first and second end flanges extending from the outward edges of the end walls and adhered to respective side flanges.
2 . The package of claim 1 , wherein the tray defines a rectangular prism.
3 . The package of claim 1 , wherein the tray defines a truncated pyramid.
4 . The package of claim 3 , wherein the corners of the tray deviate from perpendicular by 20 degrees, 15 degrees, or 10 degrees.
5 . A method for forming a product package, the product package comprising a tray, the tray comprising a rectangular bottom portion, opposing side walls extending from respective sides of the bottom portion, first and second side flanges extending from outer edges of the side walls, opposing end walls extending from respective ends of the bottom portion, wherein a pull tab extending outward from one of the first and second side flanges, wherein each end wall includes opposing corner flaps extending from lateral edges of the end wall, each corner flap comprising an angled free edge and an arcuate free edge and being folded inward toward an interior of the tray and adhered to an inner surface of a respective side wall, the adhered corner flaps overlapping the respective side walls to resist separation of the side walls from the end walls during handling, and first and second end flanges extending from outer edges of the end walls, the tray having an interior, the method comprising the steps of:
folding tray end walls toward the interior;
folding end flanges away from the interior;
folding corner flaps toward the interior;
folding side walls toward the interior;
folding side flanges away from the interior;
adhering corner flaps to respective side walls.
6 . The method of claim 5 , wherein the adhering steps are performing by heat sealing.
7 . The method of claim 5 , wherein the tray defines a rectangular prism.
8 . The method of claim 5 , wherein the tray defines a truncated pyramid.
9 . The method of claim 8 , wherein the corners of the tray deviate from perpendicular by 20 degrees, 15 degrees, or 10 degrees.