Envelopes – wrappers – and paperboard boxes – Paperboard box – Lifting or suspending element
Patent
1989-06-21
1991-01-01
Elkins, Gary
Envelopes, wrappers, and paperboard boxes
Paperboard box
Lifting or suspending element
206141, 206427, B65D 546
Patent
active
049812530
ABSTRACT:
A corrugated paperboard carton for carrying a plurality of cans such as soft drink cans. The carton is formed from a unitary blank which is folded and glued, the upper panel of the erected carton provided with precut lines to form a handle opening for the insertion of the fingers of a purchaser, one of the precut lines being in the form of a (longitudinal) half ellipse. The handle region of the carton is provided with flex lines to assist in uniform distribution of stress and thereby minimize high stress concentrations. The handle arrangement is also such that one or more of the cans in the carton assist in distributing stresses within the paperboard when the carton is carried. In a second embodiment of the invention, the handle opening is a complete, open ellipse, the narrow ends of the ellipse extending into the carton side walls. According to a third embodiment, a pair of partially elliptical flaps partially cover an elliptical handle opening and are foldable about respective elliptical fold lines. The two ends of the handle opening are open and extend from the handle panel into respective side walls.
REFERENCES:
patent: 2785847 (1957-03-01), Forrer
patent: 4340170 (1982-07-01), Montealegre
patent: 4653686 (1987-03-01), Wood et al.
patent: 4706876 (1987-11-01), Wilson
patent: 4811894 (1989-03-01), Schuster
Doyle Michael J.
Elkins Gary
International Paper Company
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