Rotor for sedimentation field flow fractionation
AssigneeE. I. Du Pont de Nemours and Company
InventorJohn W. Grant
Life of this patent
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Abstract
A long, thin annular belt-like channel is designed for use in sedimentation field flow fractionation. This channel, which is the rotor of a centrifuge, is designed to maintain its thickness dimension constant and yet facilitate its manufacture and cleaning by forming the rotor of a double mating ring in which the inner ring is split. This permits the inner ring to conform to the outer load carrying ring.
Claims11
In an apparatus for separating particulates suspended in a fluid medium according to their effective masses, said apparatus having an annular cylindrical channel with a cylinder axis, means for rotating said channel about said axis, means for passing said fluid medium circumferentially through said channel, and means for introducing said particulates into said medium for passage through said channel, the improvement wherein said channel comprises:
- an outer support ring having a constant inner radius, and
- a unitary inner ring, separated at one point along its circumference, mating with said outer ring to define said channel there between.
Dependencies are inferred from the claim text.