Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Reexamination Certificate
2008-10-09
2011-10-25
Huson, Monica A (Department: 1742)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Including application of internal fluid pressure to hollow...
C264S525000
Reexamination Certificate
active
08043552
ABSTRACT:
A process for pressurization of a thin-walled plastic container having a container weight to wall surface ratio on the order of 150 g/m2to 250 g/m2, designed to contain a flat liquid, comprising the following stages: providing a container; filling the container that has residual stresses under cold conditions with said flat liquid; sealing the container after filling; and, heating the container, without raising the temperature of the liquid, to reach the temperature of the container's glass transition point so as to generate a pressurization of the interior of said container.
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Huson Monica A
Plastipak Packaging, Inc.
Tabone Mario A.
Tecsor HR
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