Paper container for fluid having spout plug

Details Paper container for fluid having spout plug Paper container for fluid having spout plug

2004-04-23

2009-06-02

Elkins, Gary E (Department: 3782)

Envelopes, wrappers, and paperboard boxes

Paperboard box

With closure for an access opening

C229S125150, C222S083000, C220S277000

Reexamination Certificate

active

07540405

ABSTRACT:
A paper container for fluid including a spout plug, in which the spout plug is formed of a spout positioned on a spout hole part for cutting and opening and incorporates a rotary opening blade and a cap. The spout plug is fitted to a top panel, which includes the spout hole part for cutting and opening in which a spout hole is formed in a paper base material and is sealed by a sealing layer. The contained further including a cut and opened piece fall prevention mechanism produced when the sealing layer is cut and opened by the rotary opening blade of the spout plug and capable of preventing a part of the cut and opened piece of the sealing layer from being cut off and giving hinge function to the uncut part of the cut and opened piece in the spout hole part for cutting and opening.

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patent: 2000-344261 (2000-12-01), None
patent: 03/002419 (2003-01-01), None

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