Fluid separation and processing device

Details Fluid separation and processing device Fluid separation and processing device

1987-07-01

1990-01-09

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

436 45, 356426, 356427, G01N 2107

Patent

active

048927082

ABSTRACT:
An assembly for separating, metering and delivering fluids includes a central rotating member rotatable about a fixed spin axis. A processing chamber holding member is connected to the central rotating member by a centrifugally actuated frame. At rotational speeds below a first predetermined speed, the centrifugally actuated frame is in a first position. At rotational speeds greater than the first speed, centrifugal force moves the frame to a second position angularly spaced from and at greater distance from the spin axis than the first position. A processing chamber is mounted on the holding member and its orientation relative to the spin axis is the same in the first and second positions. Fluid is provided in the processing chamber. By accelerating the processing chamber to the first predetermined speed and decelerating below the first predetermined speed in a selected sequence, specific centrifugal force vectors are generated in the processing chamber that move the fluid and retain it in selected chambers. During this sequence, the fluid is metered, separated and delivered to a reduction area where measuring is performed.

REFERENCES:
patent: 4812294 (1989-03-01), Combs
patent: 4814282 (1989-03-01), Holen

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