B - Operations – Transporting – 67 – D
Patent
B - Operations, Transporting
67
D
B67D 1/12 (2006.01) B67D 1/10 (2006.01) F04B 49/06 (2006.01)
Patent
CA 2657673
An apparatus and method for dispensing a discrete volume of fluid. The apparatus includes a pump operable in discrete cycles, a power source connected to the pump, and a controller connected to at least one of the pump and the power source. The controller is configured to vary the power provided from the power source to the pump during at least a portion of each discrete cycle based on characteristics of the pump and the fluid. For example, the controller may vary power by controlling the duration of the provision of power, or by controlling the amplitude of the power. Varying the power is intended to improve the accuracy of the discrete volume of fluid dispensed. Correspondingly, the method of dispensing a discrete volume of fluid includes receiving information pertaining to the fluid to be dispensed, and adjusting a provision of power to a pump based on the information. The method may include adjusting the duration of the provision of power, or adjusting the amplitude of the provision of power.
La présente invention concerne un appareil et un procédé de distribution d'un volume discret de fluide. L'appareil comporte une pompe opérable en cycles discontinus, une source d'alimentation raccordé à la pompe, et un contrôleur raccordé à au moins une parmi la pompe et la source d'alimentation. Le contrôleur est configuré pour faire varier l'alimentation provenant de la source d'alimentation vers la pompe au moins lors d'une partie de chaque cycle discontinu en fonction des caractéristiques de la pompe et du fluide. Par exemple, la contrôleur peut faire varier l'alimentation en contrôlant la durée de la fourniture d'alimentation, ou en contrôlant l'amplitude de l'alimentation. La variation de l'alimentation est destinée à améliorer la précision du volume discret de fluide distribué. De manière correspondante, le procédé de distribution d'un volume discret comprend la réception d'information concernant le fluide à distribuer. Le procédé peut comprendre l'ajustement de la durée d'alimentation ou l'ajustement de l'amplitude de la fourniture d'alimentation.
Fine Richard
Litterst Charles
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Zavida Coffee Company Inc.
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