Liquid container opening device

Details Liquid container opening device Liquid container opening device

1988-06-20

1989-04-18

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

With closure for an access opening

206617, 206628, 2066313, 206633, B65D 542

Patent

active

048219509

ABSTRACT:
An improved, easily openable rectangularly-shaped container for liquids such as milk and juice formed of folded sheet paper or plastic, the improvement comprises the addition of an opening device having a first portion connected to the sealed pour spout and a second position integral with the first portion which extends free from the pour spout adapted for hand grasping. The first portion, when the second portion is pulled away from the pour spout, separates the sealed mating upper margins of the pour spout. The improvement may also be detachable after initial opening of the container.

REFERENCES:
patent: 2315116 (1943-03-01), Flizikowski
patent: 2353746 (1944-07-01), Moore
patent: 3074610 (1963-01-01), Pugh
patent: 3426936 (1969-02-01), Palmer
patent: 3520464 (1970-07-01), Pugh, Sr.
patent: 3567108 (1971-03-01), Corridon
patent: 3617311 (1971-11-01), Beltle
patent: 4441613 (1984-04-01), Hain et al.

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