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| Number | Title | Issue Date |
| 8038867 | Electrodialysis device and process A device includes a first electrode and a second electrode spaced from the first electrode to define a volume. An anion exchange membrane and a cation exchange membrane are disposed within the volume. A controller controls a supply of electrical current from an elec... | 10/18/2011 |
| 7341597 | Method and apparatus for electrolytic hydrotherapy A device and method for increasing the number and type of ions in a hydrotherapy treatment to assist in removing unwanted chemicals from the body. A battery-powered array is submerged into a liquid foot bath to generate ions through electrolysis. The array has at le... | 03/11/2008 |
| 7258779 | Method and means for hydrogen and oxygen generation A method and means for producing a combustible mixture of hydrogen and oxygen by electrolysis of water using a pulsed application of water onto electrodes while applying an electrical potential between electrodes and where the electrodes are not immersed in the wate... | 08/21/2007 |
| 7238278 | Apparatus for purifying water The invention relates to a method for purifying water by forming in an electrolytic cell molecular halogen, hypohalic acid, hypohalite ions or combinations thereof, from halide ions dissolved in the water; and dissolving one or more soluble metal salts in the water ... | 07/03/2007 |
| 7211185 | Method and apparatus for electrocoagulation of liquids An electrocoagulation treatment device includes a plurality of spaced reaction plates disposed within a reaction chamber. A voltage is applied to selected reaction plates to create an electrical field within the electrocoagulation chamber. The plates are arranged ve... | 05/01/2007 |
| 7192513 | Cathodic protection junction box current equalizer A cathodic protection junction box current equalizer has a plurality of output terminals each being connectable through a variable resistors to an anode, the resistors being controlled such that the corresponding anode outputs a desired current. ... | 03/20/2007 |
| 7160434 | Therapeutic electrolysis device An electrolysis device is provided. The electrolysis device includes an ionizer unit having first and second plate assemblies that each provide a different surface area that is contacted by water when the unit is in use. The plate assemblies may each provide a diffe... | 01/09/2007 |
| 7107838 | Apparatus and methods for monitoring water consumption and filter usage Apparatus and methods for employing electrical properties of water to indicate the level of filtered water in a filtered water container. The container is fitted with a hopper that holds unfiltered water. The hopper is fitted at its base with a removable and replace... | 09/19/2006 |
| 7018543 | Waste water treating method and waste water treating apparatus An object of the present invention is to provide a waste water treating method and a waste water treating apparatus which are capable of treating for-treatment water containing a nitrogen compound and a phosphorus compound at low costs and efficiently. The waste wat... | 03/28/2006 |
| 6913684 | Method for removal of solid deposits from electrode surfaces in water disinfecting systems using electrolytic cells, and a device for use thereof A method for removal of solid deposits from surfaces of electrodes of a DC electrolytic cell for disinfecting of water in a closed system, especially in a swimming pool, SPA or hot tub, includes simultaneous spinning the water over the electrode surfaces and electro... | 07/05/2005 |
| 6887368 | Method and device for electroextraction of heavy metals from technological solutions and wastewater The basic principles of the method for heavy metals electroextraction from technological solutions and wastewater includes pretreating to remove Chromium-6 and high concentrations of heavy metals and periodically treating in a six-electrode bipolar cylindrical elect... | 05/03/2005 |
| 6821403 | Method and device for cleaning and disinfecting treatment of water Method for cleaning and disinfecting treatment of water, during which the water is exposed to at least one electric field, whereby the electric field is a low-current field with pulsating direct voltage. Device for realization of the method which includes a source o... | 11/23/2004 |
| 6811660 | Apparatus for purifying water containing dissolved organic matters and trace harmful substances Various kinds of wastewater and water such as methane fermentation digestion liquids, domestic wastewater, sewage, service water, culture pond water, wastewater defined by an active sludge law and wastewater from food industries are decomposed, cleaned and treated w... | 11/02/2004 |
| 6719894 | Process for electrocoagulating waste fluids An electrocoagulation process for removing organic and metal contaminants from a pressurized waste fluid is disclosed in which a clarified waste fluid is produced when the pressure is released. ... | 04/13/2004 |
| 6706168 | Wastewater treatment method and apparatus Wastewater treatment operations, i.e. the coagulation, decomposition, sterilization and separation of impurities such as the sludge, organisms, etc. in a liquid to be treated are carried out by applying an AC voltage of a specific frequency between first and second ... | 03/16/2004 |
| 6645366 | Waste water treatment device A waste water treatment device is provided in which removal of phosphorus and removal of nitrogen can efficiently be carried out and a decrease in size of the device and a decrease in cost can be achieved. The waste water treatment device includes a waste... | 11/11/2003 |
| 6488835 | Method for electrocoagulation of liquids An electrocoagulation treatment method wherein voltage is applied to selected reaction plates to create an electrical field within the electrocoagulation chamber. The plates are arranged vertically with respect to the chamber which induces a vertical flow... | 12/03/2002 |
| 6478949 | Method and apparatus for increasing the oxygen content of water A method and apparatus for increasing the oxygen content of water have been shown and described. A volume of water is passed between the electrodes of an electrolytic cell, a portion of the volume of water converting to dissolved oxygen. A desired level o... | 11/12/2002 |
| 6387243 | Separation of metal ions absorbed on a resin and installation for recycling photographic effluents including an exchanger and an electrolytic vessel A method for separating metal ions absorbed on a resin includes: suspending or percolating a cationic exchange resin charged with a polar solvent containing an eluting agent or a mixture of eluting agents containing at least an organic or mineral ligand c... | 05/14/2002 |
| 6319390 | Method of and system for cleansing a toilet or urinal A method of and system for cleansing a toilet or urinal are proposed which require less maintenance work and are safer to users than conventional methods using acid substances, and which can prevent the formation of stain on the toilet or urinal effective... | 11/20/2001 |
| 6296756 | Hand portable water purification system A hand portable water purification system includes a portable electrolytic cell to increase the content of oxygen and chlorine in water to be purified. The electrolytic cell includes a housing and a set of electrodes. The housing provides physical support... | 10/02/2001 |
| 6280601 | Electrolytic method for sterilization of microorganisms and/or mineralization of organic and/or inorganic substances in ground soil This invention relates to a method for sterilizing microorganisms and/or decomposing organic and inorganic pollutants in a region of ground soil by passing a specified direct current through the contaminated soil region with a controlled voltage applied b... | 08/28/2001 |
| 6251259 | Method and apparatus for producing electrolyzed water An electrolytic cell capable of controlling the pH and the ORP independently to each other, comprising an electrolytic chamber (113) to which subject water to be electrolyzed are supplied, membranes (115, 115) provided on the both side walls of the electr... | 06/26/2001 |
| 6171469 | Method and apparatus for increasing the oxygen content of water A method and apparatus for increasing the oxygen content of water have been shown and described. A volume of water is passed between the electrodes of an electrolytic cell, a portion of the volume of water converting to dissolved oxygen. A desired level o... | 01/09/2001 |
| 6139717 | Process for treating water and apparatus therefor The invention provides a process and apparatus for treating water, which can be stably operated with high efficiency over a long period of time. The apparatus has a grounding electrode and a pair of applying electrodes connected to a DC voltage source thr... | 10/31/2000 |
| 6007693 | Spa halogen generator and method of operating A halogen generator produces a halogen sanitizing agent to sanitize water in a spa or other water feature. A coaxial wall fitting desirably couples the halogen generator to the water feature. The halogen generator desirably includes a bipolar electrolytic... | 12/28/1999 |
| 5985155 | Method and apparatus for automatic adjustment of halogen production in a water treatment system A method and apparatus for automatically adjusting electrolytic production or feeding of a sanitizer such as halogen for treating a water body such as a swimming pool or spa. A microprocessor is responsive to sensors monitoring pH and temperature of the w... | 11/16/1999 |
| 5853562 | Method and apparatus for electrolyzing water A method and an apparatus for electrolyzing water in which electrolysis of water can be carried out while effectively removing scales such as calcium carbonate and by which the service life of electrode can be extended on the order of several years. Repea... | 12/29/1998 |
| 5807473 | Electrolytic water treatment An apparatus and method for electrolytically treating water which includes one or more reactors. Each reactor has a liquid containing vessel and one or more pairs of electrodes. The electrodes are suitable for a continuous anodic or cathodic operation for... | 09/15/1998 |
| 5759384 | Spa halogen generator and method of operating A halogen generator produces a halogen sanitizing agent to sanitize water in a spa or other water feature. A coaxial wall fitting desirably couples the halogen generator to the water feature. The halogen generator desirably includes a bipolar electrolytic... | 06/02/1998 |
| 5738778 | Method related to the sterilization of microorganisms and/or to the mineralization of organic substances including microbic metabolites in a ground region and in the ground water by means of electric current This invention relates to a method for sterilizing microorganisms and/or decomposing organic and inorganic pollutants in ground soil and ground water by means of a specified direct current applied between at least one pair of electrodes incorporated into ... | 04/14/1998 |
| 5688393 | Method for the electro-oxidation of photographic solutions The invention concerns a method for the treatment by electrolysis of used photographic solutions, in particular those containing developers for X-ray films, in an electrolysis cell comprising at least one platinum anode and at least one cathode. According... | 11/18/1997 |
| 5614078 | Method and apparatus for removing nitrates from water An apparatus for reducing nitrates in an aqueous solution includes an electrochemical cell having a container for containing the aqueous solution containing nitrates, a carbon fiber cathodic electrode, a carbon fiber anodic electrode, and a reference elec... | 03/25/1997 |
| 5599437 | Electrolysis of electroactive species using pulsed current A waste solution containing electroactive species, e.g., metal ions, can be remediated to very low levels of contaminant by an electrolysis method including the steps of introducing an electrolyte containing an electroactive species into an electrolytic c... | 02/04/1997 |
| 5549812 | Process and apparatus for processing industrial waste water by electrolysis Electrolysis of water is effected while the water flow is pulsed utilizing pulse direct current in an electrolyzer having a medium flow between pairs of electrodes and a meandering flow from electrode pair to electrode pair, treating waste water and produ... | 08/27/1996 |
| 5478449 | Method and apparatus for processing waste gas Disclosed is an improved waste gas processing method and apparatus using reduced water to contact waste gas, thereby removing noxious substances therefrom or turning it into nontoxic gas. Also, inactivation of acid effect is advantageously caused, and hen... | 12/26/1995 |
| 5451301 | Device for electroactivating fluids and preparations consisting of electroactivated fluids Device for the electroactivation of a fluid (1), preferably a somewhat saliferous solution, having a pH value of 6-8, with two electrodes (3,4) that are lowered into the fluid (1) and a thin membrane (5) which has a very small electrical conductivity and ... | 09/19/1995 |
| 5439566 | Scale control device and method Water containing scale forming materials is passed in a tortious path into contact with a series of alternating positively and negatively charged grids, causing scale to be selectively deposited on the grids. The grids are vibrated periodically to break u... | 08/08/1995 |
| 5435894 | Process and apparatus for improving quality of water The invention provides a process and apparatus for improving the quality of water in an easy manner and with reasonable cost and high efficiency. The process provides a grounding electrode and a pair of applying electrodes in water to be treated. First an... | 07/25/1995 |
| 5423962 | Electrolytic treatment apparatus Polarizing conductive conduits are mechanically and electrically mounted to respective ones af a pair of electrodes to which a voltage source is connected to establish an electric field between the electrodes. Liquid to be purified is first passed through... | 06/13/1995 |
