Electrically driven microfluidic pumping for actuation
September 9, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElectrokinetic high pressure hydraulic system Low cost, high pumping rate electrostatically actuated mesopump Electrokinetic high pressure hydraulic system Electroosmotic flow controlled microfluidic devices Electrokinetic high pressure hydraulic system Variable potential electrokinetic device Electrokinetic pump Piezoelectrically driven fluids pump and piezoelectric fluid valve Micro-fabricated electrokinetic pump Valve for controlling flow of a fluid Patent #: 7217351 InventorsAssigneeApplicationNo. 11221967 filed on 09/09/2005US Classes:60/326Utilizing a mixture, suspension, semisolid or electro-conductive liquid as motive fluidExaminersPrimary: Lazo, Thomas EAttorney, Agent or FirmInternational ClassesG01N 27/453F16K 31/02 AbstractAn actuator cell includes a supply chamber containing fluid, and an expansion chamber for receiving fluid from the supply chamber, and being expandable to deform a predetermined area of the actuator cell. The actuator cell further includes a channel providing a fluid flow passage between the supply and expansion chambers, and a compliant material substantially surrounding the supply chamber, the expansion chamber and/or the channel. An electric circuit applies an electric field adjacent the supply and expansion chambers, and thereby causes fluid flow from the supply to the expansion chamber.Other References
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