Imperforate bowl: centrifugal separators – Including plurality of miniature bowls distrubuted about... – Having bowls – or holders therefor – pivotaby attached to...
Patent
1995-09-08
1996-12-17
Cooley, Charles E.
Imperforate bowl: centrifugal separators
Including plurality of miniature bowls distrubuted about...
Having bowls, or holders therefor, pivotaby attached to...
494 37, B04B 502
Patent
active
055847900
ABSTRACT:
A variable inclination centrifugation or rotor assembly and a method for rapid separations. The samples, such as whole blood, are centrifuged within pivoting tube holders while in a first position wherein the longitudinal axes of the tube holders are substantially parallel to a central axis of rotation. As rotation continues, the tube holders are inclined in a radial direction by controlled adjustment of the tube holders toward a second position wherein the axes of the tube holders and the rotation axis are substantially perpendicular. The first embodiment of the assembly employs a worm gear to incline the samples and allows for inclination and rotation of the samples to be controlled independently. The second and third embodiments employ a spring-loaded linkage system and a governor mass and three-arm linkage system, respectively, for inclination. These are activated by the rotational speed of the samples. The assemblies of the present invention may be utilized within standard centrifuges, and may be removed from the centrifuge, as for sterilization.
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Bell Michael L.
Lowe Winston H.
Beckman Instruments Inc.
Cooley Charles E.
Henry Janis C.
May William H.
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