Special receptacle or package – With pallet feature – Knockdown or collapsible type
Patent
1984-01-17
1985-01-08
Garbe, Stephen P.
Special receptacle or package
With pallet feature
Knockdown or collapsible type
206632, B65D 2734
Patent
active
044923082
ABSTRACT:
A quick opening envelope which gives full access to its interior upon opening is disclosed. The envelope is formed from a blank constructed from a single sheet of flexible material having a plurality of fold lines defining a front panel, a back panel, two side flaps and a closure flap. The back panel is attached to marginal areas of the side flap by means of a releasable adhesive material and to a central tab portion of the closure flap by conventional adhesive material. The closure flap tab is defined by a V-shaped formation of die cut perforations, each of which includes a curved portion and a straight portion. The V-shaped formation of perforations enables neat and easy opening of the envelope by lifting to separate the tab from the closure panel and the back panel from the side panels.
REFERENCES:
patent: 570380 (1896-10-01), Chalmers
patent: 1336646 (1920-04-01), Mendenhall
patent: 3460743 (1969-08-01), Burnett
patent: 3489332 (1970-01-01), Knittel
patent: 3522907 (1970-08-01), Utterback, Jr.
patent: 3652008 (1972-03-01), Grotefend
patent: 3773251 (1973-11-01), Hadick
patent: 3853262 (1974-12-01), Tucker et al.
patent: 4093074 (1978-06-01), Bielawski
Lillibridge Harold R.
Meeker David M.
Champion International Corporation
Garbe Stephen P.
Jones William W.
Mulholland John H.
Sommer Evelyn M.
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