Easily laterally opened type paper container

Details Easily laterally opened type paper container Easily laterally opened type paper container

1996-11-26

1999-04-27

Garbe, Stephen P.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Having means to facilitate opening the box by severing box...

229238, 229926, 383201, 383205, 383908, B65D 1734

Patent

active

058970525

ABSTRACT:
The provision of an easily laterally opened type paper container includes: a paper base material which is made of material having thermoplastic resin layers on both sides thereof; an opening piece which is formed of a resin film, and sandwiched and bonded between an upper piece and a lower piece of an overlap width portion of the paper base material which is overlapped and laminated on each other with a picking length; a notch portion defined in the upper piece of said overlap width portion in correspondence with both ends of said opening piece laterally; and an oriented polyolefine film having such a characteristic that an orientation magnification of the film in one direction is larger than that in a direction orthogonal to the one direction, which is stacked on an inner surface of the paper container material in such a manner that the one direction having the larger orientation magnification coincides with an opening direction of the paper container.

REFERENCES:
patent: 2370079 (1945-02-01), Schmidt
patent: 2383728 (1945-08-01), Little
patent: 2725172 (1955-11-01), McCullough et al.
patent: 3291377 (1966-12-01), Eggen
patent: 3426936 (1969-02-01), Palmer
patent: 3566752 (1971-03-01), Dreher
patent: 4411365 (1983-10-01), Horikawa et al.
patent: 4834245 (1989-05-01), Ohga et al.
patent: 5582342 (1996-12-01), Jud

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