A helically moving fluid body leaving an extruder screw and brought into contact with rotating shearing means, undergoes laminar displacement, is then guided through a stationary sleeve along undulating linear paths of travel of relatively short axial length, and thereafter undergoes further laminar...http://www.google.ca/patents/US4697928?utm_source=gb-gplus-sharePatent US4697928 - Modular mixing apparatus including interchangeable fluid processing means
