Valve for fluid control
Patent 6224728 Issued on May 1, 2001. Estimated Expiration Date: 
August 13, 2019. 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.
August 13, 2019. 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 ReferencesThermal micropump with values formed from silicon plates Electrokinetic high pressure hydraulic system Patent #: 6019882 InventorsAssigneeApplicationNo. 373872 filed on 08/13/1999US Classes:204/450, Electrophoresis or electro-osmosis processes and electrolyte compositions therefor when not provided for elsewhere204/600, Electrophoretic or electro-osmotic apparatus204/647, Particle bed separator (e.g., inert particles, ion exchange beads, etc.)204/648, Bulk separator for solids and liquids (e.g., to dewater solids, clarify water, etc.)417/52EXPANSION AND CONTRACTION OF PUMP FLUIDExaminersPrimary: Phasge, Arun S.Attorney, Agent or FirmInternational ClassC12Q 001/68AbstractA valve for controlling fluid flows. This valve, which includes both an actuation device and a valve body provides: the ability to incorporate both the actuation device and valve into a unitary structure that can be placed onto a microchip, the ability to generate higher actuation pressures and thus control higher fluid pressures than conventional microvalves, and a device that draws only microwatts of power. An electrokinetic pump that converts electric potential to hydraulic force is used to operate, or actuate, the valve.Field of SearchElectrophoresis or electro-osmosis processes and electrolyte compositions therefor when not provided for elsewhereElectrophoretic or electro-osmotic apparatus Particle bed separator (e.g., inert particles, ion exchange beads, etc.) Bulk separator for solids and liquids (e.g., to dewater solids, clarify water, etc.) EXPANSION AND CONTRACTION OF PUMP FLUID |
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