Classifying – separating – and assorting solids – Sifting – Plane sifters
Patent
1996-04-02
1998-10-06
Krizek, Janice L.
Classifying, separating, and assorting solids
Sifting
Plane sifters
209332, 2093665, 209395, B07B 136
Patent
active
058164120
ABSTRACT:
The subject invention relates to a screening system, preferably a finger screening system, for screening particulate material. The screening system for screening particulate material comprises a screening assembly including a housing. A plurality of screening modules are mounted for direct attachment to and removal from the screening assembly. Each screening module comprises a support block having a front end and a back end and a plurality of rods joined at a first end to the front end of the support block. The second end of the rods are free of attachment and form a row of the rods extending outwardly from the support block. The row of rods define an array of sieve openings of a predetermined size for allowing particulate material up to a predetermined size to pass through the screening module. A plurality of attachment assemblies are also provided for clamping the plurality of screening modules to the screening assembly. Each attachment assembly comprises a first clamping member and second clamping member which are disposed for relative movement one with respect to the other. Clamping and unclamping of the screening modules within the screening assembly is implemented by moving at least one of the first clamping member and second clamping member along a path toward the rear of the screening assembly until the screening modules become interlockingly engaged by the first clamping member and second clamping member.
REFERENCES:
patent: 3221877 (1965-12-01), Dekoning
patent: 3241671 (1966-03-01), Brauchla
patent: 3454162 (1969-07-01), Cover
patent: 4956078 (1990-09-01), Magerowski et al.
patent: 5219078 (1993-06-01), Hadden
patent: 5322170 (1994-06-01), Hadden
Krizek Janice L.
Western Wire Works Inc.
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