Lidded cartons with improved locking

Details Lidded cartons with improved locking Lidded cartons with improved locking

1991-09-04

1992-08-18

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

With closure for an access opening

229150, 229151, B65D 520, B65D 4316

Patent

active

051391953

ABSTRACT:
Carton apparatus includes lid members having locking tabs received in pockets formed in triple layer sidewalls. The intermediate layer of the sidewall defines a recess for receiving the locking tab, and forms a pocket when inner and outer sidewall layers are brought into contact with the intermediate sidewall layer. The intermediate sidewall layer includes locking edges which engage locking edges on the locking tabs. The tab-receiving pockets may be either open or closed.

REFERENCES:
patent: 2727675 (1955-12-01), Mairs et al.
patent: 3029996 (1962-04-01), Drummond
patent: 3933300 (1976-01-01), Dempster
patent: 3998379 (1976-12-01), Myers et al.
patent: 4175691 (1979-11-01), Cornell et al.
patent: 4291830 (1981-09-01), Sorenson
patent: 4316563 (1982-02-01), Turner et al.
patent: 4339069 (1982-07-01), Poteet
patent: 4620666 (1986-11-01), Lacasa et al.
patent: 4770339 (1988-09-01), Weimer

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