Classifying – separating – and assorting solids – Sifting – Elements
Reexamination Certificate
2006-09-18
2010-06-15
Mackey, Patrick (Department: 3653)
Classifying, separating, and assorting solids
Sifting
Elements
C209S270000, C209S291000, C209S627000
Reexamination Certificate
active
07735656
ABSTRACT:
A self-clearing rotary screening system (300, 300′, 300″, 300′″) includes a frame (110) having a longitudinally extending axis (112). The frame (110) includes a plurality of longitudinally extending frame members (114) disposed in angularly spaced relationship, one with respect to another, about the axis (112). The system (300, 300′, 300″, 300′″) includes a plurality of screening members (116) fixed between respective pairs of the plurality of frame members (114) to define a longitudinally extending cavity (118). A drive system (120) is coupled to the frame (110) for rotating the frame (110) about the axis (112). The system (300, 300′, 300″, 300′″) includes a plurality of displaceable members (210, 210′, 310, 410) pivotally coupled to respective portions of the frame (110). The displaceable members (210, 210′, 310, 410) are displaced responsive to rotation of the frame (110) about the axis (112).
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patent: 6220447 (2001-04-01), Lambert
patent: 6422394 (2002-07-01), Page
Kumar Kalyanavenkateshware
Mackey Patrick
Rosenberg , Klein & Lee
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