Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1989-04-28
1989-11-28
Elkins, Gary
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
229169, 229174, 229918, B65D 522
Patent
active
048832219
ABSTRACT:
An articulable carton tray apparatus for containment and protection of articles, such as food produce articles, which apparatus may be assembled in a facilitated manner, with reduced amounts of paper materials, while being capable of resisting collapse during stacking and maintaining its assembled configuration under load and stress. The apparatus includes a bottom wall, and side, end and top walls. Flaps emanate from the side, end or top wall to align and lock to one another, remaining ones of the side, end or top walls--to maintain the apparatus in its articulated configuration, through locking means operably positioned within the flap. These locking means engage and co-operate with elements in the adjacent side, end or top wall. Support columns extend between the top walls and the bottom wall to further resist collapse of the apparatus during stacking.
REFERENCES:
patent: 3157346 (1964-11-01), Hamilton
patent: 3871570 (1975-03-01), Garmon
patent: 4197980 (1980-04-01), Johnson
patent: 4349147 (1982-09-01), Jensen
patent: 4385721 (1983-05-01), Olsen et al.
patent: 4418863 (1983-12-01), Kimbrell, Sr.
patent: 4537344 (1985-08-01), Thomas
patent: 4546913 (1985-10-01), Castillo
Carton tray apparatus manufactured and sold by Georgia-Pacific Corporation (as shown in accompanying four photographs), date unknown.
Elkins Gary
Stone Container Corporation
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