Electrokinetic high pressure hydraulic system
Patent 6572749 Issued on June 3, 2003. Estimated Expiration Date: 
July 23, 2021. 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.
July 23, 2021. 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 ReferencesElectrokinetically pumped high pressure sprays Patent #: 6495015 Inventors
AssigneeApplicationNo. 912154 filed on 07/23/2001US Classes:204/450, Electrophoresis or electro-osmosis processes and electrolyte compositions therefor when not provided for elsewhere204/600, Electrophoretic or electro-osmotic apparatus204/601Capillary electrophoresis typeExaminersPrimary: Phasge, Arun S.Attorney, Agent or FirmInternational ClassB05B 005/00AbstractAn electrokinetic high pressure hydraulic pump for manipulating fluids in capillary-based system. The pump uses electro-osmotic flow to provide a high pressure hydraulic system, having no moving mechanical parts, for pumping and/or compressing fluids, for providing valve means and means for opening and closing valves, for controlling fluid flow rate, and manipulating fluid flow generally and in capillary-based systems (microsystems), in particular. The compact nature of the inventive high pressure hydraulic pump provides the ability to construct a micro-scale or capillary-based HPLC system that fulfills the desire for small sample quantity, low solvent consumption, improved efficiency, the ability to run samples in parallel, and field portability. Control of pressure and solvent flow rate is achieved by controlling the voltage applied to an electrokinetic pump. |
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