Fluid pack and process for the production thereof

Details Fluid pack and process for the production thereof Fluid pack and process for the production thereof

1988-10-26

1989-12-19

Elkins, Gary

Envelopes, wrappers, and paperboard boxes

Paperboard box

Including tearing or breaking means for opening a nonunitary...

220269, 220359, 22912514, 22912515, 22912517, B65D 570, B65D 572

Patent

active

048877654

ABSTRACT:
A fluid pack made of plastics-coated paper in which the side walls (2) and/or the cover (1) are connected together by way of fold edges (9) and provided in the cover (1) is an opening device (7) having a cover strip (10) which sealingly engages over a stamped-out hole (6).
So that the opening device (7) can be produced in an operationally reliable and economic fashion even in a high-capacity machine, the cover strip (10) is injected plastics material and the edge regions (13) thereof cover over the edge portions (14) of the stamped-out hole (6) on both inner and outer sides of the hole.

REFERENCES:
patent: 2347686 (1944-05-01), Hothersall
patent: 3250436 (1966-05-01), Kurtz
patent: 3322297 (1967-05-01), Stolle et al.
patent: 3458080 (1969-07-01), Laurizio
patent: 3900155 (1975-08-01), Rausing et al.
patent: 4170314 (1979-10-01), Weierman et al.
patent: 4244491 (1981-01-01), Takahashi et al.
patent: 4312450 (1982-01-01), Reil
patent: 4391385 (1983-07-01), Rausing
patent: 4397401 (1983-08-01), Ueno et al.
patent: 4669640 (1987-06-01), Ando et al.

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