Classifying – separating – and assorting solids – Sifting – Drum sifters
Patent
1986-04-15
1987-05-05
Bashore, S. Leon
Classifying, separating, and assorting solids
Sifting
Drum sifters
209250, 209273, 210415, 162 55, 162251, 241 74, B07B 120, B01D 2900, D21C 700
Patent
active
046630309
ABSTRACT:
In screening apparatus for paper making stock including a housing, a cylindrical perforated screen member separating the interior of the housing into a supply chamber and an accepts chamber on the inside and outside respectively of the screen member, an inlet port for supplying stock to one end of the supply chamber, an outlet port from the accepts chamber, a reject port from the supply chamber, and a rotor mounted for rotation within the screen member, the rotor is characterized by comprising a substantially circular disk which is of a thickness constituting a very minor fraction of the axial length of the screen member and has vanes mounted on its outer periphery which extend lengthwise of the screen member for rotation with the disk in the annular space between the periphery of the disk and the inner surface of the screen member.
REFERENCES:
patent: 791566 (1905-06-01), Mayer
patent: 982454 (1911-01-01), Willoughby
patent: 1036318 (1912-06-01), Pariter
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patent: 1525449 (1925-02-01), Johnson
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patent: 2908390 (1959-09-01), Rich et al.
patent: 3145165 (1964-08-01), Sandison
patent: 3680696 (1972-08-01), Morin
patent: 4396502 (1983-08-01), Justus
Chupka David E.
Gilkey Mark W.
Markham Larry D.
Winkler Jimmy L.
Bashore S. Leon
Lithgow Thomas M.
The Black Clawson Company
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