Envelopes – wrappers – and paperboard boxes – Paperboard box – Variable volume
Patent
1989-05-01
1990-12-25
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Variable volume
229138, 229164, B65D 522, B65D 4316
Patent
active
049796666
ABSTRACT:
An articulated tray apparatus for describing a shallow depth container for use on conveyor packaging lines, capable of retaining loose piece-part objects deposited therein, and constructed in a manner to permit formation of the container by automated trayformer-carton erection equipment as well as to permit facilitated closure of the apparatus after filling. At least two opposite side walls and respective top panels are joined, upon articulation of the container blank, to at least two opposite end walls and respective end panels, by connection flaps which have upper and lower portions connected to one another. The upper portion of the connection flaps each contain an articulation fold line for facilitating articulation and closure of the connection flaps, while relieving resistance upon closure and sealing of the container.
REFERENCES:
patent: 2810506 (1957-10-01), Kessler
patent: 3112853 (1963-12-01), Welshenbach
patent: 3346399 (1967-10-01), Watson et al.
patent: 3502488 (1970-03-01), Bridgford
patent: 3581977 (1971-06-01), Kirsky
patent: 4782788 (1988-11-01), Arcand
Kantola Ronald G.
Zion Kenneth J.
Elkins Gary E.
Stone Container Corporation
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