Rotor with multiple foils for screening apparatus for papermaking pulp
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United States of America Patent
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Sep 13, 2005
Grant Date -
Mar 3, 2005
app pub date -
Sep 2, 2003
filing date -
Sep 2, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rotor adapted for use in a hydrodynamic device comprising a cylindrical screen having a circumferentially continuous apertured zone. The rotor has an axis of rotation and includes a substantially cylindrical outer surface adjacent the cylindrical screen surface. The rotor further includes a plurality of sets of a plurality of adjacent vane members supported above a substantially cylindrical outer surface of a rotor by a plurality of brackets. The rotor has an axis of rotation and is mounted within and co-axial with the cylindrical screen to define an annular screening chamber between the rotor and the screen. The sets are equally spaced apart in a direction circumferential to the rotor axis, and the vane members extend the length of the screening chamber parallel to the rotor axis.
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