Chemistry: physical processes
Patent
1979-10-11
1981-07-07
Jenkins, Robert W.
Chemistry: physical processes
210325, 233 16, B04B 900, B04B 1100
Patent
active
042770173
ABSTRACT:
A flow-through coil planet centrifuge mechanism with variable rotation-revolution (r/R) speed ratios, which does not employ rotating seals. The rotation and revolution rates are continuously adjustable by using separate variable-speed drive motors. A system of gearing and belts compensates for the rotation and revolution of the centrifuge column relative to a stationary supporting frame structure to avoid twisting of the flow tubes. A first motor drives a pair of spider assemblies arranged coaxially with a column-supporting spool. One spider assembly has planetary gearing cooperating with a fixed gear belt to rotate the column relative to the spool. The other spider assembly has planetary gearing driven by a second motor and coupled to the column support spool so that the spool revolves relative to the stationary frame structure and simultaneously the column rotates relative to the spool.
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Jenkins Robert W.
The United States of America as represented by the Department of
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