Imperforate bowl: centrifugal separators – Including plurality of miniature bowls distrubuted about...
Patent
1988-07-01
1989-07-25
Jenkins, Robert W.
Imperforate bowl: centrifugal separators
Including plurality of miniature bowls distrubuted about...
B04B 502
Patent
active
048509515
ABSTRACT:
In a centrifuge rotor with defined and discrete sample receiving cells, an improvement to the fastening of a lid on top of the rotor by a bolt for preserving gas pressure on sample is provided. The rotor is of the type having a rotor body and rotor adaptor for attachment to a drive hub. Typically, a male control surface on the drive hub mates with a corresponding female mating surface on the rotor adaptor. The mating surfaces include paired opposed pins on the rotor adaptor received in grooves on the drive hub. A central aperture along the spin axis of the rotor is provided through the rotor body. This aperture is provided for viewing the rotor coupling at the pins to the grooves in the drive hub as well as providing a path through which a bolt can attach a lid on the top of the rotor to the drive hub with the rotor compressed therebetween the lid and drive hub, a sample preserving atmosphere may be maintained in the rotor during centrifugation. The invention comprises cantilevering a bushing from the lid down to the vicinity of the drive hub within the central aperture of the rotor body.
REFERENCES:
patent: 4412830 (1983-11-01), Strain
patent: 4553955 (1985-11-01), Lam
Blueprint Rotor Assy Ja-14/7/24/74/Beckman Instruments, Inc., Jul., 1974.
Instructions for using the JA-14 Fixed Angle Rotor in Beckman J-21 and J-S Series Centrifuges, Mar. 1988.
Brown Hugh O.
Cheng David W.
Beckman Instruments Inc.
Harder Paul R.
Jenkins Robert W.
May William H.
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