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| Number | Title | Issue Date |
| 7404884 | Injection bonded articles and methods Injection bonded articles comprised of a rigid core and secured together with an elastomeric material network which also forms seals and encapsulates at least a portion of the rigid core. The elastomeric material is selected to be compatible with the material compri... | 07/29/2008 |
| 6998044 | Electrophoretic cross-flow filtration and electrodeionization: method for treating effluent waste and apparatus for use therewith The present invention provides a method and apparatus for purifying effluent wastewater utilizing electrophoretic cross-flow filtration and electrodeionization. The method first comprises filtering the water in a cross-flow direction with a filter membrane (120 | 02/14/2006 |
| 5766439 | Production and recovery of organic acids A process is described for producing organic acids such as lactic acid. The process includes the steps of producing lactic acid by fermentation, resulting in an aqueous fermentation broth containing lactic acid, and adding a calcium base, such as calcium ... | 06/16/1998 |
| 5725748 | Process and installation for treating cellulose waste lye In a process for an electrochemical treatment of cellulose waste lye, mass transport takes place through a diaphragm or membrane between a cathode chamber and an anode chamber, and optionally through a middle chamber. Cationogenic components are removed f... | 03/10/1998 |
| 5681728 | Method and apparatus for the recovery and purification of organic acids The present invention relates to methods and apparatus for reducing the fouling of ion-selective membranes used in the electrodialytic purification of organic acids. More particularly, the present invention relates to the use of nanofiltration and chelati... | 10/28/1997 |
| 5611904 | Electrochromatography apparatus The invention provides fittings for the ends of electrochromatography cols. Each fitting includes an annular electrode surrounding one end of the passage electrical fields to be applied. The fitting also contains a passageway for eluant flowing into or o... | 03/18/1997 |
| 5558753 | Polarity reversal and double reversal electrodeionization apparatus and method Electrodeionization apparatus having a novel polarity reversal protocol designed to provide continuous, high-quality product fluid is described. The protocol involves substitution of a recirculating fluid stream established in an ion-concentrating compart... | 09/24/1996 |
| 5503729 | Electrodialysis including filled cell electrodialysis (electrodeionization) Electrodialysis ("ED") stacks are disclosed having components selected from the group: a) cation exchange ("CX") membranes and/or CX granules having in at least a surface a predominant amount of sulfonate exchange groups and a minor amount of weakly ioniz... | 04/02/1996 |
| 5407553 | Turbulent flow electrodialysis cell In a multiple-chambered electrodialysis cell having an anode chamber, a cathode chamber, a plurality of brine chambers, and a plurality of desalinate chambers, said chambers defined by a plurality of membranes wherein the improvement comprises providing m... | 04/18/1995 |
| 5308467 | Electrically regenerable demineralizing apparatus The improved electrically regenerable demineralizing apparatus uses ion exchangers that are produced by radiation-initiated graft polymerization and that are packed in the demineralizing compartment of an electrodialyzer. The apparatus may use a mosaic io... | 05/03/1994 |
| 4983267 | Water deionization and contaminants removal or degradation A method and device provide for the deionization and contaminants removal or degradation of aqueous liquids, particularly drinking water. The water is caused to flow in a first direction and while flowing it is treated so as to simultaneously effect deion... | 01/08/1991 |
| 4614576 | Microliter scale electrodialysis apparatus A non-flowing batch electrodialysis pocket cell apparatus for rapidly treating milliliter or microliter volume samples of high value biological materials. Said pocket cells being easily removeable from a holding vessel and containing a sample holding cavi... | 09/30/1986 |
| 4608140 | Electrodialysis apparatus and process Apparatuses and processes are described for transferring electrolytes from one electrolytically conducting solution to another, said apparatus comprising a pair of spaced electrodes; at least one pair of spaced electrolytically conducting barriers between... | 08/26/1986 |
| 4584075 | Process and apparatus for electrically desorbing components selectively sorbed on an electrolytically conducting barrier Processes and apparatuses are described for recovering components dispersed in an aqueous solution comprising contacting said solution as a first solution with an electrically conducting barrier, diaphragm or membrane which has a high affinity for at leas... | 04/22/1986 |
| 4569739 | Electrofilter using an improved electrode assembly A system and method for dewatering or separating particles from a liquid or a colloidal suspension which comprises the use of an electrofilter with separated, submerged electrodes wherein the electrode used for collecting the solid particles comprises an ... | 02/11/1986 |
| 4559119 | Installation and process for the preparation of acid caseinates A milk supply pipe issues into a container. By means of a pipe (4), the container content is fed to an electrodialyzer. The electrodialyzed product is partly returned to the container.... | 12/17/1985 |
| 4549947 | Method and apparatus for dehydration of water-containing substance by electro-osmosis A method and apparatus is provided for effecting dehydration of a water-containing substance held in a receiving compartment formed in an intervening space between a cathode and an anode by means of the electro-osmotic force of a microporous membrane. The... | 10/29/1985 |
| 4536269 | Multichamber two-compartment electrodialytic water splitter and method of using same for acidification of aqueous soluble salts An apparatus is disclosed for generating an acidified aqueous salt solution and an aqueous base in a multichamber two-compartment electrodialytic water splitter which comprises alternating bipolar and first cation permselective membranes and at least one ... | 08/20/1985 |
| 4468306 | Biodic electrofiltration An electrically augmented vacuum filtration apparatus and process wherein a suspension of solids is dewatered in a bath located between electrodes of opposite polarity with intermediate biodes (a biode being in a sense a combined anode and cathode structu... | 08/28/1984 |
| 4043896 | Ultrafiltration and electrodialysis apparatus A combination electrodialysis method and apparatus comprising ultrafiltration membrane cell pairs interposed between a cation-selective membrane and an ion-nonselective membrane. The solution to be treated is fed to one side of the ultrafiltration membran... | 08/23/1977 |
| 3985636 | Electrodialysis apparatus electrode system An electrode system for use in an electrodialyzer which comprises a plurality of depletion compartments and concentration compartments bounded by ion selective membranes and electrodes in compartments at opposite ends of apparatus. The end compartment ele... | 10/12/1976 |
