Solid material comminution or disintegration – Apparatus – Including means applying fluid to material
Reexamination Certificate
2005-03-01
2005-03-01
Tolan, Ed (Department: 3725)
Solid material comminution or disintegration
Apparatus
Including means applying fluid to material
C241S185500, C241S186200, C241S189100
Reexamination Certificate
active
06860440
ABSTRACT:
A hammermill for singulating cellulosic fibers from a pulp sheet comprises a cylindrical housing, a feed slot with a breaker bar positioned therein and a rotor mounted for rotation in the housing. Feed rolls are provided to feed a sheet of pulp into the feed slot upstream of the breaker bar. A plurality of hammers are mounted on the rotor. Air is introduced into the hammermill housing tangentially downstream from the second feed slot. An air outlet is positioned tangentially on the housing downstream from the air inlet to allow air and singulated fibers to escape.
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patent: 3966126 (1976-06-01), Werner
patent: 4241881 (1980-12-01), Laumer
patent: 4650127 (1987-03-01), Radwanski et al.
patent: 5253815 (1993-10-01), Bowns et al.
patent: 5560553 (1996-10-01), Crane
patent: 5836527 (1998-11-01), Irwin et al.
patent: 5967436 (1999-10-01), Balvanz
patent: 6405950 (2002-06-01), Gunderson
Crane Ray
Johnson Nordahl K.
Christensen O'Connor Johnson & Kindness PLLC
Tolan Ed
Weyerhaeuser Company
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