Tapered carton and blank for forming it

Details Tapered carton and blank for forming it Tapered carton and blank for forming it

1990-10-15

1991-05-14

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Including a polygonal, nonrectangular wall

229122, 229193, 229900, B65D 506, B65D 554

Patent

active

050149059

ABSTRACT:
A tube type carton formed from a unitary blank of paperboard and having at each end closure panels defined by a pair of opposed dust flaps and opposed major and minor closure flaps. The major flaps and two opposite side wall panels of the four side panels are trapezoidal. The remaining two opposite side wall panels are square but of different size. A pair of rectangular interior tucking panels joins one edge of the smaller square side wall panel to the shortest edge of one of the two opposite trapezoidal side wall panels, these interior panels being tucked into the interior of the carton. By virtue of the tucking, the cross-section of the tube is changed from rectangular to trapezoidal. The fully erected configuration of the carton is that of a truncated, right, four-sided, rectangular pyramid. The minor flaps, near the interior tucking panels, are each provided with cut-outs on one of their free edges so that adhesive on the major flaps can contact the two dust flaps nearest the interior tucking panels and thus prevent the smaller square side wall panel and that trapezoidal side wall panel joined to it by the tucking panels from moving away from each other due to the resiliency of the paperboard.

REFERENCES:
patent: 695211 (1902-03-01), Keller
patent: 1993153 (1935-03-01), Eggebrecht
patent: 2374458 (1945-04-01), Siewart
patent: 3246829 (1966-04-01), Sexton

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