Sift resistant economy seal carton

Details Sift resistant economy seal carton Sift resistant economy seal carton

1983-11-02

1985-07-23

Shoap, Allan N.

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

229 43, B65D 502

Patent

active

045304610

ABSTRACT:
A paperboard carton, of improved end sealability, has two end flaps with debossed portions, a third end flap with an embossed portion, and a fourth, planar, end flap captured between the debossed and embossed flaps. The debossed end flaps comprise an opposed pair connected to the narrower side panels of the carton, while the embossed and planar flaps are connected to the relatively wider front and back panels respectively. Due to the effectiveness of the end closure, substantial flap overlap is no longer required for adequate sealing and it is possible to substantially reduce the length of the end flaps connected to the side panels and the back panel, as compared to those of a conventional carton of the same overall size.

REFERENCES:
patent: 2563619 (1951-08-01), Ringler
patent: 3003677 (1961-10-01), Hennessey
patent: 3144978 (1964-08-01), Asman
patent: 3197109 (1965-07-01), Nelson
patent: 3934791 (1976-01-01), Dick et al.
patent: 4072263 (1978-02-01), Focke
patent: 4083486 (1978-04-01), Bergstein

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