B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 15/00 (2006.01) B01D 65/08 (2006.01) B01F 11/00 (2006.01)
Patent
CA 2059637
2059637 9103313 PCTABS00003 A driving device for a vortex mixing apparatus comprises means (9, 10) for holding a mixing unit of a type having at each opposite end a pumping diaphragm (28) for imposing a pulsatile flow on a liquid passing through a primary channel in the unit; two pistons (17), each arranged to cooperate with a respective one of the diaphragms and reciprocatable between a retracted position clear of the unit and an extended position in which it extends into a housing of the unit and compresses the respective diaphragm; driving means (19-24) normally arranged to reciprocate the pistons in phase at the same frequency such that when one piston is moving from its retracted position to its extended position the other is moving from its extended position to its retracted position and vice versa; and control means (25-27) arranged, upon stopping of the driving means, to cause both pistons to adopt retracted positions so that the unit may be inserted into, and removed from the holding means without interference from the pistons.
Hall Richard Charles
Lewis-Stevenson Marcus Anthony
Bellhouse Technology Limited
Borden Ladner Gervais Llp
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