Patent ID: 6749551
Filing Date: 2004-06-15
Classification: B65D

Abstract:
A method of forming a container blank comprising the steps of:providing a substrate; cutting said substrate to form at least two side panels, two end panels; at least one glue panel extending from at least one end panel, at least two top panels, at least one bottom panel, and a plurality of dust panels secured to said plurality of top and bottom panels; forming an aperture on a first top panel; forming a moveable flap on a second top panel wherein said moveable flap is aligned with and larger than said aperture; securing a first ferrite material around the external perimeter of said aperture on the external side of said container; securing a second ferrite material around the interior perimeter of said moveable flap and on the opposite side of the substrate from said first ferrite material; generating a first magnetic field in said first ferrite material; generating a second and opposite magnetic field in said second ferrite material; forming fold lines between said plurality of panels; folding said plurality of panels to form a container wherein said moveable flap is aligned with and covers said aperture in a closed position and wherein said second ferrite material is secured to said first ferrite material by magnetic attraction.