The filter assembly for swinging bucket type centrifuges includes a cylindrical filter body disposed within a filter body holder, both having hemispherical outer ends. The diameter of curvature of the filter body is smaller than the diameter of curvature of the holder allowing the contact surface between...http://www.google.com.au/patents/US4472276?utm_source=gb-gplus-sharePatent US4472276 - High-speed centrifugal filter assembly and method
