G - Physics
01
F
G01F 11/02 (2006.01) B01F 13/10 (2006.01) B01F 15/04 (2006.01) F04B 49/12 (2006.01) G01F 11/06 (2006.01)
Patent
CA 2423349
A fluid dispense system having a computer control system that operatively controls a stepper motor driving a nutating pump. The stepper motor actuates the nutating pump piston through partial revolutions. The computer control system determines the number of stepper motor steps required to pump a desired amount of fluid by the nutating pump by rotating the piston through segments which are less than a full revolution.
L'invention porte sur un système de distribution de liquides commandé par un ordinateur agissant sur un moteur pas à pas entraînant une pompe à nutation par des tours partiels. Le système de commande détermine le nombre de pas du moteur nécessaires pour faire fournir par à la pompe la quantité désirée de liquide en faisant tourner le piston par segments inférieurs à un tour complet.
Amsler Thomas J.
Barton Jeffrey G.
Carr Charles F.
Hogan Tim
Lowan Margaret M.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Fluid Management Inc.
Micropump Inc.
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