Frangible fitment for container

Details Frangible fitment for container Frangible fitment for container

1992-09-30

1994-04-19

Elkins, Gary E.

Receptacles

Closures

With closure opening arrangements for means

220266, 220276, 220359, 22912515, 222541, B65D 1734, B65D 1740

Patent

active

053038380

ABSTRACT:
A container (e.g., an 8 oz. milk container) formed of paperboard, or the like, is formed with an aperture. A plastic disk is attached to the paperboard over the aperture by thermoplastic welding or other means. The disk has a frangible area which is opened to dispense contents. Typically the frangible area is penetrated by the end of a drinking straw. For aseptic packaging, the paperboard may be lined with a barrier, such as foil. Alternatively foil may be attached to the disk and welded to the paperboard surrounding the aperture or welded to a foil or polyethylene liner for the paperboard.

REFERENCES:
patent: 3458080 (1969-07-01), Laurizio
patent: 3990603 (1976-11-01), Brochman
patent: 4391385 (1983-07-01), Rausing
patent: 4393979 (1983-07-01), Ball et al.
patent: 4408697 (1983-10-01), Yoshikawa et al.
patent: 4513876 (1985-04-01), Buchner
patent: 4669640 (1987-06-01), Ando et al.
patent: 4770325 (1988-09-01), Gordon et al.
patent: 4801037 (1989-01-01), Hayashida et al.
patent: 4887765 (1989-12-01), Rausing
patent: 5069372 (1991-12-01), Kawajiri

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