Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7147363 | Device for thermal treatment of flour for hygenic purposes This invention relates to a method and a device for thermally treating flour, especially middlings, for hygienic purposes. The device includes modules which are a first, heatable batch mixer (4) with a pre-mounted depot (1). The batch mixer is connecte... | 12/12/2006 |
| 7124765 | Dishwasher having a water softener with a salt container located in the dishwasher door A dishwasher includes a door, a washing tub closable by the door, and a water softener including an ion exchanger and a salt container. The salt container is disposed in an area of the door and includes a first and a second side wall, a bottom, narrow connecting wal... | 10/24/2006 |
| 7100994 | Producing hydrocarbons and non-hydrocarbon containing materials when treating a hydrocarbon containing formation A method for treating a hydrocarbon containing formation is provided. In one embodiment, heat from one or more heaters may be provided to at least a portion of the formation. Heat may be allowed to transfer from the one or more heaters to at least a part of the form... | 09/05/2006 |
| 7077968 | Method for continuously filtering raw brine for use in chlor-alkali electrolysis The method of continuously processing raw brine with a solids content to obtain substantially solids-free pure brine (E) for use in chlor-alkali electrolysis. In this method the raw brine (A) is separated, by means of a decanter (1), into a clear brine (B) wi... | 07/18/2006 |
| 6997518 | In situ thermal processing and solution mining of an oil shale formation An oil shale formation may be treated using an in situ thermal process. Heat may be provided to the treatment area. Fluids may be injected into the formation to remove a component within the formation. Hydrocarbons, H2, and/or other formation fluids may b... | 02/14/2006 |
| 6908507 | Process and a plant for the production of Portland cement clinker A process is disclosed for producing cement clinker, comprising the steps of: a) providing a mixture of ground calcareous materials and ground argillaceous materials; b) heating the mixture of step a) to a temperature sufficient to calcine and fuse the ground materi... | 06/21/2005 |
| 6652820 | Methods of making cesium salts and other alkali metal salts A method of making a cesium salt is described and involves reacting a cesium sulfate containing solution with lime to form 1) a solution containing at least cesium hydroxide and 2) a residue comprising calcium sulfate. The method further involves removing... | 11/25/2003 |
| 6596252 | Recycling of spent pot linings A process is described for the treatment of spent pot lining material from electrolyte reduction cells, this spent material having a substantial content of cryolite. The spent material is first leached with water at a dilution and a time sufficient to dis... | 07/22/2003 |
| 6162408 | Process for purifying ash which principally consists of sodium sulphate from a recovery boiler Ash from a recovery boiler is purified by leaching or evaporation-crystallizing contaminants such as, chlorides and potassium salts in water. The leaching or evaporation-crystallizing takes place in an aqueous solution at a temperature that is in the vici... | 12/19/2000 |
| 5840085 | Process for removing sodium chloride and potassium salts from ash collected from a soda recovery boiler This invention relates to a process for removing sodium chloride and potassium salts, which are impurities concentrated and accumulated in pulp digesting chemicals, from ash collected from a soda recovery boiler. This process comprises the steps of (a) mi... | 11/24/1998 |
| 5810020 | Process for removing nitrogen-containing anions and tobacco-specific nitrosamines from tobacco products There is disclosed a process for denitrifying tobacco materials and removing barium from tobacco materials, comprising mixing an aqueous-immiscible organic solvent containing a crown ether with an aqueous solution containing soluble components from tobacc... | 09/22/1998 |
| 5605669 | Process of preparing cesium salts from cesium aluminum alum This invention relates to the preparation of cesium salts from cesium-aluminum-alum in a process in which the cesium-aluminum-alum is reacted in a single vessel in the presence of water with calcium hydroxide in an amount which is equimolar to the amount ... | 02/25/1997 |
| 5508012 | Methods for recovering sodium sulfides from a sulfur scavenging reaction A method is provided for the regeneration of a scavenging compound that has been reacted with hydrogen sulfide. Regeneration is accomplished through the use of calcium oxides and sodium hydroxide. Sodium sulfide is recovered from the regeneration process ... | 04/16/1996 |
| 5433932 | Process to recover azide values from azide-based gas generating materials In a process for recovering an alkali metal azide from a waste gas generating material containing the alkali metal azide and a metal oxide reactable with the azide, the gas generating material is mixed with a solvent for the alkali metal azide. This produ... | 07/18/1995 |
| 5330618 | Process for separating dissolved solids from a liquid using an anti-solvent and multiple effect evaporators A process and system for treating aluminum salt cake containing water soluble halide salts by contacting the salt cake with water to dissolve water soluble halide salts forming a saturated brine solution. Transporting a portion of about 25% of the saturat... | 07/19/1994 |
| 5238664 | Soda ash production Process for disposing of insoluble tailings that remain when solubilizing uncalcined or calcined trona in the process of producing soda ash, in which the tailings are slurried with water or waste solutions of sodium carbonate and/or sodium bicarbonate, ad... | 08/24/1993 |
| 5211922 | Process for the recovery of values from secondary aluminum dross A process for recovery of metallic aluminum, sodium and potassium chloride and an aluminum oxide-metallic aluminum product from secondary aluminum dross. A secondary aluminum dross feed is separated by particle size into a first dross portion which is wat... | 05/18/1993 |
| 4997637 | Digestive crystallizing process and apparatus for purification of KC1 Disclosed is a method of reducing the sodium chloride content of potassium chloride by forming an aqueous slurry of potassium chloride feed crystals having a wide particle size distribution with an average diameter of about 0.1 to about 50 microns in a li... | 03/05/1991 |
| 4938934 | Recovery of cesium chloride from pollucite ore A process for recovering purified cesium chloride from a cesium aluminum silicate ore in which the ore is digested with aqueous hydrochloric acid and the silica solids removed to obtain an aqueous acidic digest solution of metal chlorides consisting of ce... | 07/03/1990 |
| 4753740 | Antiflocculating agents for metal halide solutions A process for making a dry metal halide salt which will not form an insoluble flocculent material upon dissolving in water in which an initial aqueous solution of a metal halide salt is prepared and a member selected from the group consisting of ammonium ... | 06/28/1988 |
| 4751066 | Process for preparing alkali metal phosphate Alkali metal phosphates are recovered from a water immiscible solvent solution of aqueous wet process phosphoric acid by neutralizing the acid with a basic alkali metal salt in a ratio of alkali metal to phosphorus of 1 to 3.5 to form at least the mono al... | 06/14/1988 |
| 4738835 | Method of recovering alkali chemicals from flue gases containing alkali metal vapor A method of recovering alkaline chemicals from a material containing sodium or potassium compounds. The material is gasified by an external heat source after which the gas is rapidly cooled by arranging it to contact with cooled solid particles separated ... | 04/19/1988 |
| 4724130 | Recovery of promoters used in flue gas desulfurization In flue gas desulfurization, sorbent promoters are recovered by mixing collected particulates with water to form a slurry. The slurry is dewatered and wet solids are disposed. The recovered material contains water soluble desulfurization promoters and is ... | 02/09/1988 |
| 4716027 | Method for simultaneously scrubbing cement kiln exhaust gas and producing useful by-products therefrom This invention relates to an apparatus and method for simultaneously scrubbing acidic exhaust gases and removing metal salts from alkaline waste dust from a cement plant or the like thereby producing useful products from what would otherwise be wasted. In... | 12/29/1987 |
| 4708855 | Method and system for exhaust gas stream scrubbing Method and system for scrubbing exhaust gas stream from a wet process cement plant wherein a supply of alkaline water and a supply of compressed air are delivered to spray nozzles which are located within the existing exhaust stream ducting. The alkali wa... | 11/24/1987 |
| 4668487 | Alkaline processing of naturally occurring calcium aluminium and iron phosphates A process for production of alkali metal phosphates from material containing calcium, iron and aluminium phosphates, for example naturally occurring phosphate rocks, involves calcining the material with alkali metal carbonates to produce alkali metal phos... | 05/26/1987 |
| 4655828 | Separation of metallic lithium Lithium metal is separated from lithium salts in spent torpedo boiler fuel by solubilizing said salts in a solution of a Lewis acid such as boron trifluoride in a polar solvent such as 1,2-dimethoxyethane followed by subsequent separation of the constitue... | 04/07/1987 |
| 4402850 | Method of producing a liquid agent for improving the quality of contaminated water A method is disclosed of producing a liquid agent for improving the quality of contaminated water, particularly water in pools, natural bodies of water and waste waters, characterized by introducing with agitation comminuted rock-salt clay or a mixture th... | 09/06/1983 |
| 4396439 | Recovery and recycle of nitrate and nitrite salts from chloride containing quench bath solids A method is provided for the recovery and recycle of nitrate and nitrite salts present in environmentally hazardous chloride containing quench bath solids, comprising the steps of leaching the solids with hot water to provide an aqueous leachate that depl... | 08/02/1983 |
| 4365975 | Use of electromagnetic radiation to recover alkali metal constituents from coal conversion residues In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein particles containing alkali metal residues are produced, alkali metal constituents are recovered from the particles b... | 12/28/1982 |
| 4307066 | Extraction of metals from mixtures of oxides or silicates Metals are extracted from mixtures of oxides or silicates by reacting the mixture at elevated temperature with a gaseous chlorinating agent comprising a mixture of water vapor and hydrogen chloride to selectively chlorinate the desired metal or metals.... | 12/22/1981 |
| 4225565 | Process for treating waste slags In the treating of waste slags produced in the desulfurization and/or dephosphorization of molten pig iron with alkali carbonates, the alkali is recovered by extracting said waste slags with hot water while feeding carbon dioxide gas to form an extraction... | 09/30/1980 |
| 4193771 | Alkali metal recovery from carbonaceous material conversion process In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced in the gasifier or similar reaction zone, alkali metal ... | 03/18/1980 |
| 4151261 | Method of preparing sodium liquors low in calcium A method for dissolving calcined trona containing calcareous impurities, to obtain an aqueous sodium carbonate solution having low calcium content involves contacting calcined trona in countercurrent flow, desirably under specific temperature conditions, ... | 04/24/1979 |
| 4149879 | Recovery of mercury and caustic values from caustic sludges Mercury and caustic values are recovered from caustic sludges in a process which comprises intermixing the caustic sludge with a liquid under pressure or agitation to produce a caustic slurry which is separated into a caustic liquor, metallic mercury and ... | 04/17/1979 |
| 4133866 | Process for the selective separation of the bound sodium content of red mud The invention relates to a novel process for the selective recovery of the sodium content of red mud originating from alumina plants. According to the process of the invention red mud or a slurry thereof is admixed with a ferric sulfate solution, the resu... | 01/09/1979 |
| 4131117 | Method for removal of potassium nitrate from tobacco extracts This disclosure relates to a process for selectively removing and recovering potassium nitrate in a relatively pure state from tobacco, and especially from Burley tobacco stems. The process comprises the steps of (1) contacting tobacco plant parts with wa... | 12/26/1978 |
| 4126519 | Apparatus and method for thermal treatment of organic carbonaceous material An apparatus and method for performing a continuous thermal treatment of organic carbonaceous materials under controlled pressure in which the feed material is introduced into the system in the form of a slurry, and the level of liquid is maintained at a ... | 11/21/1978 |
| 4119698 | Reclamation treatment of red mud The red mud by-product of the Bayer process by which aluminum oxide is reed from bauxite as an aluminate, is digested with concentrated sulfuric acid or with sulfur trioxide gas to produce sulfates that can be leached out to the resulting mass with water... | 10/10/1978 |
| 4117077 | Process for alunite treatment A process for alunite ore treatment which comprises roasting alunite in the presence of oxygen at a temperature of from 580° to 620° C. for 1 to 3 hours, decomposing the roasted alunite by exposure to reducing agents at a temperature of from 580° to 62... | 09/26/1978 |
