Envelopes – wrappers – and paperboard boxes – Wrapper – Bottle
Patent
1978-04-28
1979-04-10
Moorhead, Davis T.
Envelopes, wrappers, and paperboard boxes
Wrapper
Bottle
229 45R, 229 31FS, B65D 522, B65D 524, B65D 4500
Patent
active
041484290
ABSTRACT:
A receptacle having a self-locking closure is formed by fold assembly of an appropriately scored single piece blank. The receptacle formed from the sheet material blank includes forward, rear and opposed side walls connected to a bottom and providing for an upwardly facing opening. Corner gussets provided for on the blank are foldable in opposed relation along the outside face of the forward and rear walls of the receptacle. The blank further includes a projecting flap and first locking tab on the forward and rear walls with the flap being foldable outwardly and downwardly to hold the opposed gussets in place while the first locking tab is foldable upwardly under the opposed gussets to provide for lasting securement for the receptacle in an open condition. Closure flaps for the receptacle are provided on the opposed side walls and are foldable downwardly over the receptacle opening in overlapping relation. The closure flaps each include opposed forward and rear extensions foldable downwardly over the corresponding forward and rear projecting flaps in their folded condition. The overlying closure flap holds the opposed closure flap in place and is provided with a second locking tab on its forward and rear extensions. Each of the second locking tabs are foldable upwardly and under the corresponding first locking tabs to provide for lasting securement for the receptacle closure. The disclosure further contemplates that each of the closure flaps may provide for self-locking closure.
REFERENCES:
patent: 2373730 (1945-04-01), Williamson et al.
patent: 2407463 (1946-09-01), Williams
patent: 2597848 (1952-05-01), Reeser
patent: 2754046 (1956-07-01), Roberts
patent: 2757849 (1956-08-01), Duff, Jr.
patent: 2758781 (1956-08-01), White
patent: 3395850 (1968-08-01), Kotowick
patent: 3511429 (1970-05-01), Brian
patent: 3531041 (1970-09-01), Rohde
Burr Richard R.
Gabrielson Lyle G.
Masten, Jr. Richard R.
Menasha Corporation
Moorhead Davis T.
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