Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1975-10-09
1976-10-19
Gerin, Leonard H.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74219, F16H 128, F16H 700
Patent
active
039864421
ABSTRACT:
A drive system for a centrifugal liquid processing apparatus or the like wherein a rotor assembly having a container for receiving a liquid to be processed by centrifugation is rotatably mounted on a rotor drive assembly, which in turn is rotatably mounted to a stationary base. Liquid communication is maintained with the container during rotation of the rotor by means of a flexible umbilical cable which extends from the container to a location external to the apparatus by way of a passageway provided in the support shaft of the rotor assembly and a guide sleeve carried on and rotatably mounted to the rotor drive assembly. The rotor assembly is rotatably driven in the same direction as the rotor drive assembly with a speed ratio of 2:1 and the guide sleeve is rotatably driven in the opposite direction with a speed equal to that of the rotor drive assembly to prevent the umbilical cable from becoming twisted during operation of the apparatus. This is accomplished by a novel drive arrangement which includes a planetary drive gear on the rotor drive assembly which is rotatably coupled to the rotor and guide sleeve by means of a single drive belt.
REFERENCES:
patent: 2559299 (1951-07-01), Helling
patent: 3115795 (1963-12-01), Morin
patent: 3842685 (1974-10-01), Philpott et al.
Coker, Jr. George M.
Khoja Mirza A.
Baxter Laboratories, Inc.
Cummings Eugene M.
Gerin Leonard H.
Kinney Richard G.
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