Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 4957610 | Generation of hydrogen and oxygen Hydrogen and oxygen are generated by directing the output of a solar-pumped laser through a beam expander and a frequency multiplier to increase the frequency of the laser beam to the ultraviolet level. The frequency-multiplied laser beam is directed onto... | 09/18/1990 |
| 4956069 | Electrolytic membrane cells for the production of alkalis Electrolytic membrane cells for use in the production of alkalis are provided. A central anode reservoir chamber (1) has titanium (12) spread in sheets on opposite sides for electrolytic reaction with two cathode reservoir chambers (7) to form a monopolar... | 09/11/1990 |
| 4952297 | Storage, transportation and installation container for ion-exchange membranes A storage, transportation and installation apparatus for ion exchange membranes for bipolar ion-exchange membrane chlorine cells which protects the ion-exchange membrane from the environment. The apparatus includes a container which allows the wet membran... | 08/28/1990 |
| 4952298 | Corrective controller system for electrolytic cells An electrolytic cell, e.g., for the electrolysis of NaCl to produce chlorine and sodium hydroxide, has an improved operation control system, such system including a plurality of means for monitoring and controlling the flowstreams of inlet starting materi... | 08/28/1990 |
| 4950371 | Electrochemical hydrogen separator system for zero gravity water electrolysis A zero gravity phase separation water electrolysis system (FIG. 1) for producing hydrogen and oxygen in gaseous form from water, in which the hydrogen output (12), which includes proton water, is fed first to a hydrophilic separator (10), or some other fo... | 08/21/1990 |
| 4948476 | Hybrid chromium recovery process There are disclosed method and apparatus for recovering chromium from chromium-containing wastes, using an electrolytic oxidation cell divided by an anion exchange membrane and a coupled transport module containing a membrane containing a chromium(VI) com... | 08/14/1990 |
| 4927511 | Method and device for breaking a disperse system in an electrochemical cell A method and a device for breaking an aqueous emulsion, wherein the emulsion flows through an electrochemical cell in which the small emulsified droplets combine in or on a working electrode to form larger separable droplets. The method can be applied in ... | 05/22/1990 |
| 4923582 | Monopolar, bipolar and/or hybrid memberane cell Monopolar, bipolar, and hydrid filter press electrolytic cells for electrolytic processes utilizing a novel method of introducing and removing electrical energy are disclosed. The invention contemplates a novel low pressure, high surface contact area conn... | 05/08/1990 |
| 4921585 | Electrolysis cell and method of use The present invention discloses an improved solid polymer electrolysis cell for the reduction of carbon dioxide. The improvement being the use of a cathode having a metal phthalocyanine catalyst which results in the suppression of the formation of hydroge... | 05/01/1990 |
| 4921586 | Electrolysis cell and method of use The present invention discloses an improved solid polymer electrolysis cell for the reduction of carbon dioxide. The improvement being the use of a cathode having a metal phthalocyanine catalyst which results in the suppression of the formation of hydroge... | 05/01/1990 |
| 4915803 | Combination seal and frame cover member for a filter press type electrolytic cell A combination electrolysis cell seal member and electrolysis cell frame cover member suitable for use as a gasket/cover member in an electrolytic cell of the filter press type. The gasket/cover member used for a filter press-type electrolytic cell include... | 04/10/1990 |
| 4885142 | Apparatus in the form of a disk for the separation of oxygen from other gases and/or for the pumping of oxygen and the method of removing the oxygen An apparatus in the form of a disk for the separation of oxygen from gases, or for the pumping of oxygen, uses a substantially circular disk geometry for the solid electrolyte with radial flow of gas from the outside edge of the disk to the center of the ... | 12/05/1989 |
| 4867856 | Electrolysis unit for forming electrolyzed water In an electrolysis unit for forming electrolyzed water, in which electrodes of polarity different from each other are opposed to each other and both of said electrodes are partitioned with an electrolyzing diaphragm into a pair of electrode chambers to de... | 09/19/1989 |
| 4857162 | Chromium solution regenerator A chromium regeneration apparatus (10) is disclosed for regenerating spent chromium solution by oxidizing trivalent chromium to hexavalent chromium. The apparatus is provided with a tank (42) forming a reservoir full of spent chromium solution. A number o... | 08/15/1989 |
| 4857158 | Sodium hydrosulfite electrolytic cell process control system A process control system for a filter press membrane electrochemical cell is provided that utilizes a microcomputer for multi-tasking functions to concurrently execute four programs to control the cell operation and self-correct out-of-tolerance condition... | 08/15/1989 |
| 4839012 | Antisurge outlet apparatus for use in electrolytic cells The invention is a dampening device for use in a vertically disposed electrochemical cell unit of the type at least having: (a) a peripheral flange which defines at least one electrode chamber, said peripheral flange having a upper, substantially horizont... | 06/13/1989 |
| 4836903 | Sodium hydrosulfite electrolytic cell process control system A process control system for a filter press membrane electrochemical cell is provided that utilizes a microcomputer for multi-tasking functions to concurrently execute four programs to control the cell operation and self-correct out-of-tolerance condition... | 06/06/1989 |
| 4834847 | Electrochemical cell for the electrolysis of an alkali metal halide and the production of a halogenated hydrocarbon An electrochemical cell and process for the electrolysis of an aqueous solution of an alkali metal halide and the production of a halogenated hydrocarbon comprising an electrolytic cell having a gas depolarized anode and a cathode which can be a dimension... | 05/30/1989 |
| 4832804 | Electrolytic cell An electrolytic cell which comprises at least one anode and at least one cathode, an inlet channel through which liquor may be charged to the electrolytic cell, and an outlet channel through which liquor may be removed from the electrolytic cell, in which... | 05/23/1989 |
| 4832812 | Apparatus for electroplating metals An apparatus for electroplating metals in an electroplating bath having an anode and a cathode. The cathode is formed by a workpiece to be plated and the anode includes soluble material in the form of the metal to be plated and insoluble material in a pro... | 05/23/1989 |
| 4830721 | Electrochemical deoxygenation process for corrosion control in deionized waters The present invention relates to an electrochemical process for deoxygenating deionized water utilizing a membrane electrolyzer and optionally a catalytic reactor, characterized in that operation is carried out at ambient temperature avoiding the need for... | 05/16/1989 |
| 4828644 | Etching device for semiconductor wafers Work pieces are immersed in an etchant in a spaced contact free relationship with the electrodes of the system. The two electrodes are separated by a filter which prevents charge carrying particles dispersed in the etchant surrounding the electrode closes... | 05/09/1989 |
| 4808290 | Electrolytic pool chlorinator having baffled cathode chamber into which chlorinated water is delivered An electrolytic pool chlorinator produces chlorinated pool water that is added to the cathode chamber to continuously dilute the caustic concentration of the catholyte before being returned to the pool. The cathode chamber includes a series of baffle plat... | 02/28/1989 |
| 4793906 | Electrochemical process for producing hydrosulfite solutions A process for the electrochemical production of an alkali metal hydrosulfite by the reduction of an alkali metal bisulfite component of a circulated aqueous catholyte solution in an electrolytic membrane cell having a cathode compartment, a porous cathode... | 12/27/1988 |
| 4789451 | Means for reducing oxalic acid to a product Apparatus for reducing oxalic acid to a product includes a cell. A separator which separates the cell into two chambers; a catholyte chamber and an anolyte chamber. Each chamber has an inlet and an outlet. A porous cathode having a catalyst is arranged wi... | 12/06/1988 |
| 4784735 | Concentric tube membrane electrolytic cell with an internal recycle device The invention is a vertically disposed electrolytic cell comprising: a hollow, cylindrically shaped recycle tube; a hydraulically permeable, hollow, cylindrically shaped cathode concentric with and surrounding said recycle tube to define a first annular space ... | 11/15/1988 |
| 4781810 | Advanced chlorine generating system A chlorine generating apparatus is disclosed herein by which chlorine gas or sodium hyperchlorite is generated in small quantities from a brine solution economically enough to be practical for use in the backyard swimming pool. The apparatus includes a fr... | 11/01/1988 |
| 4776941 | Cathode for metal electrowinning A cathode for metal electrowinning is a hollow electrode, with orifices in the cathodic plates, formed in such a way that the catholyte, introduced with the necessary pressure in the interior of the cathode, goes to the interelectrodic space through those... | 10/11/1988 |
| 4770756 | Electrolytic cell apparatus A separator for use in an electrolytic cell between the anode and a cation exchange membrane is provided to prevent the membrane from touching the anode, the separator having a central mesh portion that is hydrophilic and a surrounding peripheral frame po... | 09/13/1988 |
| 4767519 | Monopolar and bipolar electrolyzer and electrodic structures thereof The present invention relates to an electrolyzer comprising at least an intermediate electrodic structure interposed between two electrodic end-structures, a separate on each side of the intermediate electrodic structure, device for impressing electrolysi... | 08/30/1988 |
| 4767511 | Chlorination and pH control system System for automatic control of chlorine content and pH in swimming pools. This system includes an electrolytic cell for generation of chlorine and caustic soda as needed, and an acid supply system for adding hydrochloric acid to the pool as required. Gen... | 08/30/1988 |
| 4761208 | Electrolytic method and cell for sterilizing water Electrolytic cell and low-voltage method for sterilizing water. The electrolytic cell of the invention contains a cathode and an anode which produce oxidants to effect sterilization of contaminated water. The anode is made of a Group VIII metal or compoun... | 08/02/1988 |
| 4749462 | Electrolytic oxidation/apparatus Process/apparatus for electrolytically oxidizing solutions of ionic compounds features the electrolytic oxidation of such solutions in a first anode compartment of an electrolytic cell, said electrolytic cell further comprising a second anode compartment,... | 06/07/1988 |
| 4740287 | Multilayer electrode electrolytic cell An improved multiple layered porous electrode for use in an electrochemical membrane cell is provided having a first perforated support layer, a second layer of fibers, a third layer of fibers less dense than the second layer and a fourth layer of meshed ... | 04/26/1988 |
| 4738763 | Monopolar, bipolar and/or hybrid membrane cell Monopolar, bipolar, and hybrid filter press electrolytic cells for electrolytic processes utilizing a novel method of introducing and removing electrical energy are disclosed. The invention contemplates a novel low pressure, high surface contact area conn... | 04/19/1988 |
| 4734181 | Electrochemical cell In accordance with the present invention an electrochemical cell unit is comprised of: an anolyte compartment, catholyte compartment separated from each other by a pair of close spaced ionic (cationic/or anionic) membranes which together with a foraminous... | 03/29/1988 |
| 4729822 | Electrolytic cell An electrolytic cell of the filter-press type which comprises plate-like anodes, cathodes, and gaskets of an electrically-insulating material, and an ion-exchange membrane between each anode and adjacent cathode to form in the cell a plurality of anode co... | 03/08/1988 |
| 4728402 | Electrolytic silver refining process An electrolytic silver refining process in which crude silver is anodically dissolved and refined silver is cathodically deposited and at the same time accompanying metals are selectively extracted from the spent electrolyte and separately cathodically de... | 03/01/1988 |
| 4724059 | Automated chlorine generator An automated chlorine generator is provided having a power source, an electrolytic cell able to generate chlorine by the electrolysis of sodium chloride. An anode and a cathode are provided each mounted in a separate compartment with chlorine generation i... | 02/09/1988 |
| 4720331 | Method and apparatus for electrolyzing water An electrolyzer for electrolysis of water comprises a series of cells each including a substantially open porous anode plate and a substantially open porous cathode plate disposed on either side of and in contact with a solid electrolyte membrane. First a... | 01/19/1988 |
