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US 12,208,952 B2Granted
Paper blister
AssigneeSonoco Development, Inc.
InventorsMichael Lee Schultz, Bradley James Linane
Life of this patent
Estimating the term…
Abstract
A paper-based blister package comprising a flat card and a tray is provided. The tray comprises a bottom wall, two opposing side walls, two opposing end walls, two opposing side flanges, and two opposing end flanges. The bottom wall has a perimeter defined by two side fold lines and two end fold lines. Each side flange has at least one locking end that meets a side wall and a side flange fold line at a junction. The side flange and the side wall are contoured to define a side flange shoulder adjacent the junction. At least one end flange forms an outward projecting lip configured to engage the junction to maintain proper positioning of the side flange, the end flange, the side wall and the end wall.
Claims20
A blister package for holding one or more products, the blister package comprising:
- a face card;
- and
- a tray made from a tray blank fabricated from a recyclable material, the tray comprising:
- a tray bottom wall having a perimeter defined by two side wall fold lines and two end wall fold lines,
- two opposing tray side walls attached to the tray bottom wall along the side wall fold lines and extending upward from the tray bottom wall to side flange fold lines, each tray side wall having two side wall free edges,
- two opposing tray end walls attached to the tray bottom wall along the end wall fold lines and extending upward from the tray bottom wall to end flange fold lines, each tray end wall having two end wall free edges,
- two opposing tray side flanges, each tray side flange extending outward from and attached to a corresponding one of the tray side walls along a corresponding one of the side flange fold lines, each tray side flange having at least one side flange locking end extending laterally beyond the corresponding side flange fold line, wherein the side flange locking end of the tray side flange, the side wall free edge of the tray side wall and the side flange fold line meet at a junction, and wherein the tray side flange and the side wall free edge of the side wall are contoured to define a side flange shoulder in the tray side flange adjacent the junction, and
- two opposing tray end flanges, each tray end flange extending outward from and attached to a corresponding one of the tray end walls along a corresponding end flange fold line, at least one tray end flange extending laterally beyond the corresponding end flange fold line to form a lip that projects outward beyond the end wall free edge of the tray end wall at approximately a 90° angle, wherein the lip engages the tray side wall at the junction to maintain alignment of the tray side flange, the tray end flange, the tray side wall and the tray end wall.
5 more elements
A tray blank for forming a tray of a blister package for a product, the tray blank being fabricated from a recyclable material, the tray blank comprising:
- a tray bottom wall;
- a first tray side wall connected to the tray bottom wall along a first side wall fold line and having a first side wall free edge at each end of the first tray side wall;
- a first tray side flange connected to the first tray side wall along a first side flange fold line opposite the first side wall fold line;
- a second tray side wall connected to the tray bottom wall along a second side wall fold line opposite the first side wall fold line and having a second side wall free edge at each end of the second tray side wall;
- a second tray side flange connected to the second tray side wall along a second side flange fold line opposite the second side wall fold line;
- a first tray end wall connected to the tray bottom wall along a first end wall fold line extending from the first side wall fold line to the second side wall fold line and having a first end wall free edge at each end of the first tray end wall;
- a first tray end flange connected to the first tray end wall along a first end flange fold line opposite the first end wall fold line;
- a second tray end wall connected to the tray bottom wall along a second end wall fold line extending from the first side wall fold line to the second side wall fold line opposite the first end wall fold line and having a second end wall free edge at each end of the second tray end wall, wherein the first side wall fold line, the second side wall fold line, the first end wall fold line and the second end wall fold line define a perimeter of the tray bottom wall;
- a second tray end flange connected to the second tray end wall along a second first end flange fold line opposite the second end wall fold line, wherein the second tray end flange extends laterally beyond ends of the second end flange fold line to define lips that engage the corresponding first side wall free edge and second side wall free edge when the tray blank is folded into the tray to limit the rotation of the second tray end wall about the second end wall fold line at a predetermined position.
6 more elements
A tray for a blister package for a product, the tray formed from a tray blank fabricated from a recyclable material, the tray comprising:
- a tray bottom wall;
- a first tray side wall connected to the tray bottom wall and folded along a first side wall fold line to extend upward from the tray bottom wall, and having a first side wall free edge at each end of the first tray side wall;
- a first tray side flange connected to the first tray side wall and folded along a first side flange fold line opposite the first side wall fold line to extend horizontally outward from the first tray side wall;
- a second tray side wall connected to the tray bottom wall and folded along a second side wall fold line opposite the first side wall fold line to extend upward from the tray bottom wall, and having a second side wall free edge at each end of the second tray side wall;
- a second tray side flange connected to the second tray side wall and folded along a second side flange fold line opposite the second side wall fold line to extend horizontally outward from the second tray side wall;
- a first tray end wall connected to the tray bottom wall and folded along a first end wall fold line extending from the first side wall fold line to the second side wall fold line to extend upward from the tray bottom wall, and having a first end wall free edge at each end of the first tray end wall;
- a first tray end flange connected to the first tray end wall and folded along a first end flange fold line opposite the first end wall fold line to extend horizontally outward from the first tray end wall;
- a second tray end wall connected to the tray bottom wall and folded along a second end wall fold line extending from the first side wall fold line to the second side wall fold line opposite the first end wall fold line to extend upward from the tray bottom wall, and having a second end wall free edge at each end of the second tray end wall, wherein the first side wall fold line, the second side wall fold line, the first end wall fold line and the second end wall fold line define a perimeter of the tray bottom wall;
- a second tray end flange connected to the second tray end wall and folded along a second first end flange fold line opposite the second end wall fold line to extend horizontally outward from the second tray end wall, wherein the second tray end flange extends laterally beyond ends of the second end flange fold line to define lips engaging the corresponding first side wall free edge and second side wall free edge and limiting the rotation of the second tray end wall about the second end wall fold line at a predetermined position.
6 more elements
Dependencies are inferred from the claim text.