Fluent material handling – with receiver or receiver coacting mea – Processes – Gas or variation of gaseous condition in receiver
Reexamination Certificate
2006-05-04
2009-08-25
Maust, Timothy L (Department: 3751)
Fluent material handling, with receiver or receiver coacting mea
Processes
Gas or variation of gaseous condition in receiver
C141S010000, C141S065000, C141S313000, C383S048000, C383S103000
Reexamination Certificate
active
07578320
ABSTRACT:
The flexible bag includes overlaying first and second sidewalls that provide an internal volume that can be accessed via an opening. 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. The bag is configured to prevent objects from clogging the valve element during evacuation. In one embodiment, the bag may include a plurality of ridges formed along the inner surface of at least one sidewall that can maintain separation of the sidewalls and contents from the valve element. In another aspect, the valve element is beneficially located at a top corner of the bag where the valve element is spaced apart from those locations in the bag where contents are likely to collect.
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Arnett Nicolas A
Felix Thomas C.
Maust Timothy L
The Glad Products Company
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