Hybrid centrifuge rotor

Details Hybrid centrifuge rotor Hybrid centrifuge rotor

1989-08-21

1991-10-15

Hornsby, Harvey C.

Imperforate bowl: centrifugal separators

Including plurality of miniature bowls distrubuted about...

29447, 494 81, B04B 502, B04B 708, B23P 1102

Patent

active

050570714

ABSTRACT:
A hybrid centrifuge rotor having a rotor core surrounded by a prestressed anisotropic reinforcement ring is disclosed. The rotor core may be made from aluminum and an anisotropic reinforcement ring may be a cylindrical filament wound ring, made from graphite fiber and epoxy resin. The rotor core is manufactured to have a nominally greater diameter than the inner diameter of the reinforcement ring. This rotor core, during the manufacturing process, is subjected to a cryogenic environment where the diameter is shrunk down so that the rotor body may fit and telescope within the reinforcement ring. The rotor body core and reinforcement ring assembly, upon attainment of ambient temperatures, have an interface fit wherein substantial outward force from the rotor body core prestresses the reinforcement ring so that a light weight and strong centrifuge rotor is disclosed.

REFERENCES:
patent: 3248046 (1966-04-01), Feltman, Jr. et al.
patent: 3797737 (1974-03-01), Kadotani et al.
patent: 3844730 (1974-10-01), Laussermair
patent: 3913828 (1975-10-01), Roy
patent: 3993243 (1976-11-01), Dietzel et al.
patent: 4093118 (1978-06-01), Sinn et al.
patent: 4102490 (1978-07-01), Chulay
patent: 4160521 (1979-07-01), Lindgren
patent: 4170814 (1979-10-01), Baram
patent: 4468269 (1984-08-01), Carey

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