Two-way envelope

Special receptacle or package – With pallet feature – Knockdown or collapsible type

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Details

229 73, B65D 2734, B65D 2706

Patent

active

041801687

ABSTRACT:
A two-way envelope includes a body portion, a pair of opposed side flaps, a bottom flap and a seal flap integrally connected to the body panel by a tear line. A fold line extends along the seal flap above the tear line and the side flaps have bold lines extending therealong in positions approximately colinear with the seal flap tear line and defining side flap upper portions having seal adhesive thereon. The side flaps are folded into partially overlapping relation and joined together forming a pocket with the body panel and the bottom flap. The seal flap is folded along the seal flap fold line over the side flap upper portions to seal the pocket for a first trip and the seal flap is removed from the body panel along the seal flap tear line whereupon the side flap upper portions are folded along the side flap fold lines to seal the pocket for a second trip. A method of producing the envelope is disclosed which includes the steps of applying the seal adhesive to the seal flap and the side flap upper portions as a single operation and on the same surface of an envelope blank, and folding the side flaps over the body panel causing the side flap adhesive to face in a direction opposite the seal flap adhesive.

REFERENCES:
patent: 1834570 (1931-12-01), Becker et al.
patent: 1895267 (1933-01-01), Poppe
patent: 2710095 (1955-06-01), Robins
patent: 3062431 (1962-11-01), Rabenold
patent: 3512702 (1970-05-01), Pritchard, Jr.
patent: 3558040 (1971-01-01), Krueger

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