Shell type centrifuge rotor having controlled windage

Details Shell type centrifuge rotor having controlled windage Shell type centrifuge rotor having controlled windage

1982-10-04

1984-05-22

Jenkins, Robert W.

Imperforate bowl: centrifugal separators

Including plurality of miniature bowls distrubuted about...

B04B 502

Patent

active

044499655

ABSTRACT:
The present invention is directed to a shell type centrifuge rotor formed as a frustoconical shell having a circular rim adjacent at least one end thereof. The lower end of the shell is open, whereas the upper end has a conical recess and a central opening. The recess has an inverted frustoconical sidewall, with a plurality of apertures equally spaced therein and disposed an equal distance from the central opening.
A tube holder is mounted in each of the apertures for receiving a centrifuge test tube. The tube holder has a flange configured so as to fit the surface contour of the conical recess so that the flange fully contacts the wall of the conical recess when the tube holder is mounted in the aperture. A hub is mounted in the central opening of the conical recess and couples the frustoconical shell to the centrifuge drive shaft. Means are secured to the hub for partially enclosing the lower end of the frustoconical shell to reduce the windage of the rotor to a predetermined level.

REFERENCES:
patent: 650529 (1900-05-01), Eggeman
patent: 1730776 (1929-10-01), Lundgren
patent: 3154827 (1964-11-01), Gentry
patent: 3233825 (1966-02-01), Lomb
patent: 3720368 (1973-03-01), Allen
patent: 4057148 (1977-11-01), Meyer et al.
patent: 4221325 (1980-09-01), Kubota
patent: 4310488 (1982-01-01), Rahm et al.
Catalog Sheet Found in USPTO Examiner File Div. 55, Date Stamped May 25, 1954, Which Shows Several Centrifuges Marketed Under the Tradename "Servall."

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