Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With classifying – separating or screening of pulp
Reexamination Certificate
2006-11-28
2006-11-28
Griffin, Steven P. (Department: 1731)
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With classifying, separating or screening of pulp
C162S212000, C162S315000, C209S729000
Reexamination Certificate
active
07141139
ABSTRACT:
In a process and an arrangement for directing a papermaking pulp towards a regulated outlet (9), accept from successive cleaning stages (6, 14, 20) is totally or partly led towards the outlet (9) while excess accept is led in the opposite direction to the inlet (5) of the preceding cleaning stage (6). For feeding of a forming wire, a common base pipe (8) for collecting accept extends between the outlet (9) and a feeding (3) for fresh pulp, while reject pipes (11, 18) lead to the next cleaning stage (14, 20).
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Lahti Juha
Meinander Paul O
Nykanen Risto
Browdy and Neimark PLLC
Griffin Steven P.
Kinney Anna L.
Pom Technology Oy AB
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