Air valve for a fillable poly bag

Details Air valve for a fillable poly bag Air valve for a fillable poly bag

2007-12-25

2007-12-25

Newhouse, Nathan J. (Department: 3782)

Flexible bags

With closure

Self-closing type

C383S044000, C383S100000, C383S094000, C383S050000, C383S053000, C383S058000, C383S046000, C383S048000

Reexamination Certificate

active

10885816

ABSTRACT:
An air valve for a poly bag that permits the escape of air from the bag as it is filled by a filling tube. The air valve consists of a plurality of slitted openings in one top corner of the bag and a valve flap mounted in the poly bag near the slitted openings that closes and seals the openings as filling material engages and moves the flap.

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