...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 |
| 4198914 | Installation for treatment of sediments coming from stations for purification of industrial waste water An installation for the treatment of sediment coming a purification station for industrial waste water. The installation consists of a static furnace incinerator into which sediment is transferred by means of an injector. The injector is made up of an elb... | 04/22/1980 |
| 4188892 | Method and apparatus for removal of fly ash from a waste incinerator with liquid slag discharge After the fly ash is removed from the flue gases by a separator, it is introduced into a combustion chamber which may be either the primary combustion chamber of the furnace or a separate chamber in a secondary combustion chamber. There, it is burned unti... | 02/19/1980 |
| 4179263 | Process for the utilization of waste substances and device for carrying out the process The invention relates to a process for the utilization of waste substances containing combustible components and showing fluctuations in their composition and properties and to a device for carrying out the process. The improvement comprises effecting the vola... | 12/18/1979 |
| 4173190 | Sludge incinerator utilizing coiled channel immersed in molten salt and method of oxidizing sludge utilizing same An incinerator is provided having an extended length of tubing, preferably coiled, and immersed within a bath of molten salt. Means are provided for introducing sludge at a controlled rate along with hot air under pressure for carrying the sludge through ... | 11/06/1979 |
| 4170551 | Waste oil recovery unit Waste oil on board ship is disposed of usefully by burning in the ship's steam raising boiler. Apparatus for rendering the waste oil burnable comprises a tank with waste oil and fuel oil and fuel oil inlets, a tank heater, a drain pipe and filter for sepa... | 10/09/1979 |
| 4167973 | Process for chemical decontamination of layers of earth and/or water contaminated with organic materials There is provided an apparatus for the chemical decontamination of layers of earth and/or water contaminated with organic materials comprising the following block units: Device for withdrawal of water from a water pressure line which water is to be treate... | 09/18/1979 |
| 4157942 | Method for recovery of metals from metal plating baths and neutralizing toxic effluents therefrom Method for recovering metals from cyanide and hexavalent chromium plating baths comprising immersing plated articles in a reclaiming bath containing an aldehyde or an aldehyde percursor, and optionally an oxidizing agent, to precipitate the excess metal i... | 06/12/1979 |
| 4154811 | Method for producing hydrohalic acids in a diesel engine A method is disclosed for producing hydrohalic acids, using a Diesel engine for a reactor. In a typical operation for producing hydrochloric acid, the engine fuel is a liquid phase mixture containing a hydrocarbon, such as Diesel fuel oil, and one or more... | 05/15/1979 |
| 4108113 | Method for reducing concentration of harmful or offensive vapors in the atmosphere It is common practice to discharge waste vapors from certain chemical processes into the atmosphere. Many of these vapors, usually referred to as "vent gases", contain compounds which are considered to be pollutants in the atmosphere. In this invention th... | 08/22/1978 |
| 4102651 | Ultrasonic atomizer for waste sulfuric acid and use thereof in acid cracking furnaces A furnace chamber of substantially circular cross section having a ceiling and a side wall, a burner positioned adjacent said ceiling and substantially evenly spaced from said side wall, a plurality of ultrasonic atomizer assemblies positioned around said... | 07/25/1978 |
| 4100860 | Safe transporation of hazardous materials A shipping container overpack for safe transportation of radioactive and other hazardous materials provides a leakproof receptacle for containing and protecting the material to be shipped against accidental release and dispersal into the surrounding envir... | 07/18/1978 |
| 4072596 | Apparatus for removal of contaminants from water A vessel is described for facilitating the removal of difficultly oxidizable impurities such as phenol and/or polychlorinated biphenyl from dilute aqueous solutions or dispersions. The vessel contains stacked, packed beds having characteristics of alterna... | 02/07/1978 |
| 4041882 | Apparatus for incinerating non-halogenated waste liquids An installation for burning waste solvents is characterized by the use of a concentrically constructed nozzle by means of which the waste solvents and a mixture of compressed air and fuel may be burned simultaneously. The compressed air/fuel mixture may e... | 08/16/1977 |
| 4019628 | Disposal system Hazardous materials such as askarels, chlorinated hydrocarbons or other ecologically undesirable liquids are disposed of by gelling the liquid within a combustible package and subsequently shipping the package to a qualified disposal site, such as an inci... | 04/26/1977 |
| 3984206 | Apparatus for the combustion of halogenated hydrocarbons A process and apparatus for combusting halogenated organic materials wherein such materials are combusted at a temperature of at least 600°C in a refractory-lined furnace, the combustion gases formed are cooled and the acid constituent(s) thereof are sub... | 10/05/1976 |
| 3980417 | Apparatus for incinerating non-halogenated waste liquids An installation for burning waste solvents is characterized by the use of a concentrically constructed nozzle by means of which the waste solvents and a mixture of compressed air and fuel may be burned simultaneously. The compressed air/fuel mixture may e... | 09/14/1976 |
| 3974784 | Solid-liquid waste incinerator utilizing liquid catalysts A solid-liquid waste incinerator is disclosed which provides a novel thermodynamic interaction between a liquid catalyst, which is employed for cleansing the exhaust gases from the incinerator, and a combustion stage in which the solid-liquid wastes are b... | 08/17/1976 |
| 3958518 | Incinerator for oil-containing waste sludge and method thereof Incinerator for oil-containing waste sludges having a furnace, a tank for mixing and stirring the oil-containing waste sludges and oil such as fuel oil or waste oil, a burner for spraying and incinerating the mixture into said furnace, a gas duct containi... | 05/25/1976 |
| 3957647 | Removing oil from waste water with sulfur This invention relates to water pollution control and concerns a system for removing dispersed oil from water by contacting the oily water with sulfur to cause the oil to coalesce or agglomerate. In a preferred embodiment, the water containing the dispers... | 05/18/1976 |
| 3954594 | Electrochemical cell for decreasing the cyanide and heavy metal content of an aqueous solution Apparatus and method are provided for concurrently decreasing the cyanide and heavy metal content of an aqueous solution, such as a waste water. The apparatus comprises an electrochemical cell provided with separate cathode and anode compartments. Each of the ... | 05/04/1976 |
| 3948774 | Water purification process and apparatus Process and apparatus for continuously obtaining separate outflows of pure water and sterile sludge when starting with various aqueous slurries containing organic or oxidizable contaminants (as exemplified by domestic sewage or industrial waste) and first... | 04/06/1976 |
| 3946679 | Method and apparatus for treating a continuous flow of fluid waste products and other materials Moisture is removed from a fluid waste product or material by pumping the material axially through an elongated porous tube, forcing a gas generally radially inwardly through the tube to effect disintegration of the material, and then directing the materi... | 03/30/1976 |