Flexible bags – With venting or ventilation means – Opening in bag material
Reexamination Certificate
2004-06-29
2010-06-01
Newhouse, Nathan J (Department: 3782)
Flexible bags
With venting or ventilation means
Opening in bag material
C383S100000, C383S044000, C053S405000
Reexamination Certificate
active
07726880
ABSTRACT:
The flexible storage bag includes overlaying first and second sidewalls defining an internal volume that can be accessed from an open top edge. To evacuate air from the internal volume after the open top edge has been closed, the bag includes a one-way valve element attached to the first sidewall and communicating with the internal volume. To prevent the one-way valve element from becoming clogged by the opposing second sidewall, the bag also includes a clearance member that maintains at least a partial clearance between the first and second sidewalls proximate the valve element. The clearance member can take many forms such as a textured portion on the second sidewall that includes evacuation passages which provide air in the internal volume access to the valve element, a permeable element covering the valve element, and a rigid or compressible structure that spaces the second sidewall from the valve element.
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Bergman Carl Louis
Borchardt Michael G.
Gaw Chinto Benjamin
Zimmerman Dean Arthur
Feix Thomas C.
Morgan, Jr. Jack H
Newhouse Nathan J
The Glad Products Company
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