Windowed boxes, blanks for making the same and associated method

Details Windowed boxes, blanks for making the same and associated method Windowed boxes, blanks for making the same and associated method

1990-03-08

1991-10-29

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Window or transparent portion

206 4531, 493 56, 493 84, 493905, B65D 542

Patent

active

050608525

ABSTRACT:
A box having a cover with a plurality of windows and at least a majority of the windows being elongated and oriented in generally spaced relationship with respect to each other. Each window is defined at least in part by a pair of spaced window defining sides. A first or leading series of such window defining sides is disposed in non-parallel relationship with each of a second or trailing series of window defining sides. This serves to facilitate manufacture of boxes from blanks that are readily movable over each other without undesirable edge-to-edge continuous contact which inhibits relative sliding movement during manufacture. The non-parallel window defining sides may be inwardly concave or have each window defined in part by a pair of straight window defining sides which diverge. An associated method for establishing container blanks of this type is disclosed.

REFERENCES:
patent: D86129 (1933-02-01), Levkoff
patent: 1831920 (1931-11-01), Marsh
patent: 2013227 (1935-09-01), Wilson
patent: 2113288 (1938-04-01), Berger
patent: 2170906 (1939-08-01), Mertz
patent: 2575452 (1951-11-01), Klein
patent: 2921673 (1960-01-01), Ryan
patent: 2944727 (1960-07-01), Moore
patent: 3690523 (1972-09-01), Link
patent: 4117924 (1978-10-01), Growney
patent: 4424897 (1984-01-01), Ondris et al.

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