Envelopes – wrappers – and paperboard boxes – Paperboard box – Collapsible along supplemental fold line
Patent
1994-04-26
1996-02-20
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Collapsible along supplemental fold line
229405, B65D 536
Patent
active
054922690
ABSTRACT:
A collapsible or foldable container formed by sheet material comprising at least a bottom (15), a first pair of opposite side walls (12) (14) and a second pair of opposite side walls (11) (13). The bottom (15) and the second pair of side walls (11) (13) are respectively provided with folding guider means along their middle lines (42) (29) (32) which are coplanar. Also the two legs of two respective isosceles triangles defined by two isosceles triangular zones at the lower part of the two side walls (11) (13) are also provided with folding guider means. Thus the container can be easily collapsed into a planar structure to facilitate its carrying, storage, transport or disposal.
REFERENCES:
patent: 715026 (1902-12-01), Crawford
patent: 1255133 (1918-02-01), Carr
patent: 2361876 (1944-10-01), Schell
patent: 3580473 (1971-05-01), Gill
patent: 3945561 (1976-03-01), Strebelle
patent: 5292058 (1994-03-01), Zoss et al.
Elkins Gary E.
McDonald Christopher J.
Sunglare Merchandising Inc.
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