Carton with self-locking top and bottom closure flaps and blank

Details Carton with self-locking top and bottom closure flaps and blank Carton with self-locking top and bottom closure flaps and blank

1979-11-15

1981-07-21

Moorhead, Davis T.

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

229 41B, B65D 510

Patent

active

042793777

ABSTRACT:
A self-locking, reusable carton, formed from a unitary blank of paperboard, comprising a tubular body portion, a plurality of top closure flaps and a plurality of bottom closure flaps. The top closure flaps include two flaps having L-shaped slits therein and a locking flap having a reduced-width locking tab at the end for reception in the two L-shaped slits. The bottom closure flaps include first and second flaps, each having a set of two L-shaped slits therein, and third and fourth flaps, the third flap being received in one of the slits in the first flap and in one of the slits in the second flap, and the fourth flap being received in the other of the slits in the first flap and in the other of the slits in the second flap.

REFERENCES:
patent: 1546601 (1925-07-01), Morris
patent: 2337198 (1943-12-01), Holy
patent: 2361603 (1944-10-01), Cohen et al.
patent: 2713965 (1955-07-01), Acker
patent: 2779527 (1957-01-01), Fallert
patent: 2934254 (1960-04-01), Ullger
patent: 3178096 (1965-04-01), Reeves et al.
patent: 3302853 (1967-02-01), Locke
patent: 3819105 (1974-06-01), Heimann

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