Paper making and fiber liberation – Apparatus – Foraminous forming mold for discrete articles
Reexamination Certificate
2007-11-20
2007-11-20
Halpern, Mark (Department: 1731)
Paper making and fiber liberation
Apparatus
Foraminous forming mold for discrete articles
C264S037180, C264S040100, C264S086000, C425S217000, C425S257000, C162S221000, C162S218000, C162S227000
Reexamination Certificate
active
10701969
ABSTRACT:
Apparatus for forming fibrous filter elements such as tubular elements molded from borosilicate microfibers. Molding rigs are supplied with a slurry from a system including a holding tank and a reservoir. The reservoir is coupled to a water intake and also receives recycled aqueous liquid. The holding tank receives a mixture of fibers and aqueous liquid. A controller monitors volume levels in the holding tank and reservoir and allows for incremental pH changes.
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PSI Global Ltd.
Schwegman Lundberg & Woessner, P.A.
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