Envelopes – wrappers – and paperboard boxes – Paperboard box – Tamper indicating
Patent
1997-08-06
2000-06-06
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Tamper indicating
229134, 229136, 206807, B65D 500
Patent
active
060707909
ABSTRACT:
The tamper evidency of a carton is increased by producing stronger end flap seals. This can be done by anchoring the adhesive onto at least one of the end flaps. In a preferred embodiment there is at least one lower flap with at least one recessed area, at least one seal flap with at least one aperture and at least one top flap. The lower flaps are folded inward followed by the seal flap. An adhesive is on the inner surface of the top flap which then is folded inward onto the seal flap. The adhesive flows through the at least one aperture in the seal flap and spreads outwardly in the at lest one recessed area below the at least one seal flap to become anchored to the seal flap. This is enchanted by a plurality of recesses in the at least one lower flap adjacent to the at least one aperture in the at least one seal flap. By being anchored to the seal flap and adhesively attached to the fiberboard underside of the top flap, a strong end seal is formed on the carton. This is highly tamper evident since flaps are permanently altered on opening the carton.
REFERENCES:
patent: 837324 (1906-12-01), Mitchell
patent: 2005131 (1935-06-01), De Luce
patent: 2084106 (1937-06-01), Palmer et al.
patent: 2330478 (1943-09-01), Englert
patent: 2521208 (1950-09-01), Eaton
patent: 2564099 (1951-08-01), Dunning
patent: 3367556 (1968-02-01), Whitby
patent: 4746052 (1988-05-01), Schissrauter
patent: 5148970 (1992-09-01), Johnston
patent: 5265794 (1993-11-01), Johnston
Colgate-Palmolive Company
Elkins Gary E.
Mai Tri M.
McGreal Michael
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