Plastic and nonmetallic article shaping or treating: processes – Repairing or restoring consumer used articles for reuse – Inorganic material containing articles
Reexamination Certificate
2008-02-27
2010-11-23
Johnson, Christina (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Repairing or restoring consumer used articles for reuse
Inorganic material containing articles
C137S015080
Reexamination Certificate
active
07837906
ABSTRACT:
An air plenum tank comprising a plurality of outlets aerate and agitate wastewater in a liquid treatment facility through the use of high pressured air creating cracks on the floor of the air plenum tank. Advantageously, the cracks are sealed using a system and method comprising isolating and positively pressurizing the air plenum tank and then sealing the tank using a sealant compound.
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Hauth Galen
Johnson Christina
Knobbe Martens Olson & Bear LLP
Versaflex, Inc.
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