Classifying – separating – and assorting solids – Sifting – Plane sifters
Patent
1990-11-13
1991-12-03
Hajec, Donald T.
Classifying, separating, and assorting solids
Sifting
Plane sifters
209395, 209405, 209674, B07B 128
Patent
active
050697781
ABSTRACT:
A screen deck having spaced, canted parallel slats which present screening slots between them, wherein the slats are mounted on pedestals that are positioned and aligned by parallel rods which extend transversely through the pedestals. The pedestals are spaced apart by spacers between them, the spacers being held in place by the rods. Slat mounting is facilitated and slot width uniformity is improved by use of the pedestals.
REFERENCES:
patent: 2112367 (1938-03-01), Hyter
patent: 3381355 (1968-05-01), Bixby
patent: 3506123 (1970-04-01), Ranger
patent: 3805955 (1974-04-01), Bixby et al.
patent: 4504386 (1985-03-01), Dyren et al.
patent: 4558787 (1985-12-01), Danielsson et al.
patent: 4664790 (1987-05-01), Lundqvist
patent: 4802591 (1989-02-01), Lower et al.
Lower William E.
Mitchell Stephen C.
Hajec Donald T.
Kaufman Joseph A.
Rotex, Inc.
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