Modified lock arrangement for cartons

Details Modified lock arrangement for cartons Modified lock arrangement for cartons

1985-04-25

1986-09-16

Price, William

Envelopes, wrappers, and paperboard boxes

Wrapper

Bottle

206140, 206152, 206157, 206434, 229148, 229 45R, B65D 7500

Patent

active

046117547

ABSTRACT:
This relates to a closure panel and lock arrangement for cartons of the wrap around type. The customary secondary lock includes at least one, and preferably two, male locking tabs which have a locking projection on one side only of a narrow neck and defining a locking shoulder. The male locking tab is associated with a separate female locking slot in an inner closure panel immediately adjacent its folded connection with a side panel of the carton wherein the female locking slot is formed by a single knife arrangement forming first and second cut lines without the removal of material. The shapes of the cut lines provide for automatic opening of the female locking slot when the inner closure panel is folded relative to an adjacent side panel and there is defined a flexible locking ear which will lock behind the shoulder of the male locking tab.

REFERENCES:
patent: 3014636 (1961-12-01), Fielding
patent: 3288349 (1966-11-01), Palmer et al.
patent: 3655117 (1972-04-01), Weiss
patent: 3705681 (1972-12-01), Rossi et al.
patent: 4200220 (1980-04-01), Ganz
patent: 4526316 (1985-07-01), Sutherland

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