Classifying – separating – and assorting solids – Sifting – Elements
Reexamination Certificate
2011-08-02
2011-08-02
Rodriguez, Joseph C (Department: 3653)
Classifying, separating, and assorting solids
Sifting
Elements
C209S358000
Reexamination Certificate
active
07987991
ABSTRACT:
A screening machine for a fiber suspension includes a vessel; a rotor disposed within the vessel; and a screen plate positioned in stationary opposition to the rotor. The screen plate includes a plurality of substantially parallel first grooves extending in a first direction and a plurality of substantially parallel second grooves extending in a second direction. The first grooves intersect with the second grooves. The first grooves and the second grooves conjunctively define a plurality of lands and depressions. A plurality of the lands and a plurality of the depressions include a through-hole extending through the screen plate.
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Matz Robert J.
Piper Michael
Kumar Kalyanavenkateshware
Rodriguez Joseph C
Taylor IP PC
Voith Patent GmbH
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