An improved method and apparatus for filtration includes an outer stationary body, an inner rotating body defining a gap with the outer body for receiving a fluid sample, the surface of one of the bodies defining the gap being a filter. The rotation of the inner body creates Taylor vortices which continuously...http://www.google.fr/patents/US4876013?utm_source=gb-gplus-shareBrevet US4876013 - Small volume rotary filter
