Envelopes – wrappers – and paperboard boxes – Paperboard box – Including a polygonal – nonrectangular wall
Patent
1989-12-08
1991-03-19
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Including a polygonal, nonrectangular wall
220418, 220443, 220462, 229120, 229906, 229DIG14, B65D 542
Patent
active
050003747
ABSTRACT:
Several versions of a container incorporating a corner structure including at least one locking tab are disclosed. The corner structure comprises a top or bottom panel, a front wall connected to the top or bottom panel, a side wall connected to the top or bottom panel, a diagonal side wall panel connected to the side wall, a coupling panel connecting the diagonal side wall panel to the top or bottom panel and a reverse diagonal side wall panel connected to the front wall and the coupling panel. A first locking tab may be connected to the diagonal side wall panel opposite the side wall. The first locking tab is received between the front wall and the reverse diagonal side wall panel. A second locking tab may be connected to the first locking tab, opposite the diagonal side wall panel. The second locking tab is positionable in face-to-face relationship with the front wall. A tray embodiment includes four corner structures with locking tabs. A double side wall container embodiment is disclosed with outer corner structures including an outer coupling panel provided with a tab which can be held captive between opposed portions of the container to provide additional structural integrity. In a container with opposed corner structures provided on the bottom panel, a closure flap can be provided on the top panel. The closure flap is frictionally held between first locking tabs and the front wall or between first and second locking tabs.
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Elkins Gary E.
Purdue David C.
Purdue John C.
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