Envelopes – wrappers – and paperboard boxes – Wrapper – Bottle
Patent
1980-05-16
1981-10-20
Moorhead, Davis T.
Envelopes, wrappers, and paperboard boxes
Wrapper
Bottle
312258, 312290, 312183, B65D 522
Patent
active
042955998
ABSTRACT:
An expanding file box includes a flat bottom panel and a pair of hollow side walls extending upwardly from each side of the bottom panel. The side walls have front and rear entrance openings leading into the interior thereof. The file box also includes flat front and rear panels connected to the front and rear edges, respectively, of the bottom panel to each pivot between a closed substantially vertical position and an open, outwardly tilted position. With the front and rear panels in open position, files or cards located within the box can be tilted relative to each other so that substantially the entire front face of the file is visible. The front panel includes a front sliding panel extending rearwardly from each side edge portion of the front panel to slidably extend into the hollow interior of a corresponding side wall to pivot with the front panel to form an extension of the side walls when the front panel is tilted in open position. Likewise, the rear panel includes rear sliding panels extending forwardly from each side edge of the rear panel to slidably extend into the hollow interior of a corresponding side wall to pivot with the rear panel to form a rear extension of the side walls when the rear panel is tilted rearwardly in open position.
REFERENCES:
patent: 1826962 (1931-10-01), Spare
patent: 1909472 (1933-05-01), Keppler
patent: 2105953 (1938-01-01), Ouellette
patent: 2374965 (1945-05-01), Weston
patent: 2505034 (1950-04-01), Fettinger
patent: 2663487 (1953-12-01), Paige
patent: 2942768 (1960-06-01), McCall
patent: 3373923 (1968-03-01), Martelli
patent: 3645437 (1972-02-01), Giebel et al.
patent: 3669341 (1972-06-01), Hughes
patent: 4062607 (1977-12-01), Locatelli
Gunderson Gary M.
Locatelli John D.
Locatelli John D.
Moorhead Davis T.
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