...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 |
| 6499991 | Liquid fuel vaporizer having single fuel injector A liquid fuel vaporizer includes a combustion chamber in which heat is generated by burning fuel therein, an vaporization chamber in which liquid fuel is vaporized by the heat transferred from the combustion chamber to the vaporization chamber. Both chamb... | 12/31/2002 |
| 6450162 | Indirect radiant heating device An indirect radiant heating device burns gaseous or liquid fossil fuels for the heat treatment of running products, such as bars, tubes, and strips kept in a protective atmosphere. The device includes a radiant cassette of parallelepipedal shape, with a c... | 09/17/2002 |
| 6126913 | Thermal oxidizers with improved preheating means and processes for operating same The present invention provides thermal oxidizers containing improved preheating designs and processes for improving the preheating of thermal oxidizers. The processes are practiced by preheating the matrix-bed of matrix materials in a flow path that is op... | 10/03/2000 |
| 6015540 | Method and apparatus for thermally reacting chemicals in a matrix bed An improved method and apparatus is provided for thermally reacting chemicals in a matrix bed of porous inert media. The reaction is conducted in an apparatus that is capable of establishing and maintaining a non-planar reaction wave within the matrix bed... | 01/18/2000 |
| 4457704 | Method for the operation of a gas burner exposed to an air current as well as burners to implement the method The method and apparatus sucks the entire combustion air volume in laterally with respect to the direction of flow of the air current with the help of the impulse of a fuel gas jet out of the air current into a mixing pipe and the formation of a different... | 07/03/1984 |
| 4445842 | Recuperative burner with exhaust gas recirculation means A recuperative burner having a recirculating conduit to direct flue gas to the combustion chamber with the air and fuel, and a compact recuperative stack with a recuperative flue gas conduit and an air passage in which air separated from the flue gas by t... | 05/01/1984 |
| 4366860 | Downhole steam injector An improved downhole steam injector has an angled water orifice to swirl the water through the device for improved heat transfer before it is converted to steam. The injector also has a sloped diameter reduction in the steam chamber to throw water that co... | 01/04/1983 |