Imperforate bowl: centrifugal separators – Rotatable bowl – Material of bowl wall
Patent
1987-06-05
1988-12-13
Jenkins, Robert W.
Imperforate bowl: centrifugal separators
Rotatable bowl
Material of bowl wall
156172, 494 16, B04B 708
Patent
active
047908084
ABSTRACT:
A composite material centrifuge rotor and process of construction of the rotor is disclosed. A rotor having high stiffness of fibers, preferably carbon, bound together with resin is disclosed. The rotor includes a top disk, a bottom disk and a spacer belt spacing the two disks apart to form a rotor assembly. The top and bottom disks are fabricated by overlying multiple layers of tape, the tape being made from longitudinally extending and parallel fibers held together with resin. Successive layers of tape are oriented so as to vary the longitudinal direction of the fiber with respect to a preselected radius vector from the spin axis of the rotor. When the tape is compiled in multiple layers to a thickness of the top and bottom disk, the tape is compressed between two metal plates and cured at a temperature well above the expected autoclave temperature of sterilization of the rotor. Thereafter, the entire assembly is wound by a peripheral belt with resin impregnated high stiffness fiber. This fiber is cured and shrinks during curing to exert hoop tension around the periphery of the rotor assembly. This hoop tension in turn radially prestresses the rotor equal and opposite to the radial tension forces of centrifugal force when the rotor is in use.
REFERENCES:
patent: 1827648 (1931-10-01), Greene
patent: 2974684 (1961-03-01), Ginaven et al.
patent: 3913828 (1975-10-01), Roy
patent: 3993243 (1976-11-01), Dietzel et al.
patent: 3997106 (1976-12-01), Baram
patent: 4160521 (1979-07-01), Lindren
patent: 4468269 (1984-08-01), Carey
patent: 4695341 (1987-09-01), Matuska
Beckman Instruments Inc.
Harder Paul R.
Jenkins Robert W.
May William H.
LandOfFree
Composite material centrifuge rotor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composite material centrifuge rotor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite material centrifuge rotor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2194513