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| Number | Title | Issue Date |
| 7351320 | Multiple frequency electrostatic coalescence A method of augmenting the separation of immiscible heavier and lighter components of an emulsion including the steps of conducting the emulsion into a treatment vessel, providing an AC voltage source, employing from the source an AC voltage of at least one selected... | 04/01/2008 |
| 6860979 | Dual frequency electrostatic coalescence A method of augmenting the separation of immiscible heavier and lighter components of an emulsion including the steps of passing the emulsion into a treatment vessel, establishing at least one dual frequency electric field within the vessel and selectably varying th... | 03/01/2005 |
| 6787043 | Water purification system and method A water purification system and method using an ionizer and an ozonation treatment for ionization, oxidation and/or decomposition of undegradeable contaminants is disclosed. A high electron-inducing voltage is first applied to the water in the ionizer so that underg... | 09/07/2004 |
| 6428669 | Method for separating the constituents of a dispersion In order to improve the efficiency of the separation of an insulating liquid from a dispersum, in particular of water dispersed in oil, the electric conductivity of a dispersion having the dispersion constituents is measured continuously or discontinuousl... | 08/06/2002 |
| 5861089 | Electric field enhanced coalescence of emulsions comprising a silicon containing compound or silicon containing polymer A process for separating an emulsion into separate and easily recoverable phases. The process comprises exposing an emulsion comprising a discontinuous phase and a non-conducting continuous phase to an electric field thereby effecting coalescence of the d... | 01/19/1999 |
| 5693214 | Apparatus for and method of separation to water and colloidal particles by agglomeration An apparatus for separating an aqueous colloidal solution into water and agglomerate of colloidal particles by applying a high frequency voltage to the aqueous colloidal solution comprises a tank accommodating the aqueous colloidal solution, and at least ... | 12/02/1997 |
| 5626734 | Filter for perfusion cultures of animal cells and the like A filter has a conduit having an opening for flow of fluid into the conduit, a pump for pumping fluid into the conduit through the opening, electrodes spaced apart from each other across the opening such that fluid flowing through the opening passes betwe... | 05/06/1997 |
