...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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| Application No. | Application Title | Issue Date |
| 20100258102 | DEVICE AND METHOD FOR PROCESSING SLABS OF STONE OR STONE-LIKE MATERIALS A device (1) for processing a slab of stone or stone-like material, comprises a support table (2), adapted for receiving slab, and a fixed guide rail (3) running in a first direction (X) along a side of the support table. The device further comprise... | 10/14/2010 |
| 20100006081 | METHOD FOR MANUFACTURING SILICON MATTER FOR PLASMA PROCESSING APPARATUS The present invention relates to a method for manufacturing silicon articles for a plasma processing apparatus. The present invention provides a method for manufacturing silicon articles, comprising: preparing a silicon ingot; forming a hollow silicon cylinder and a sil... | 01/14/2010 |
| 20080302349 | STONE THICKNESS CORRECTING TOOL FOR HANDHELD MACHINES A tool for creating uniform thickness around the edge of a stone slab for seaming or profiling thereof. The tool is used with portable routers or other handheld machines. A spindle side spacer, bearing assembly and blade side spacer establish a fixed depth at which the ... | 12/11/2008 |
| 20060211341 | Apparatus and method for edging stone or stone tiles A stone machine and a process for working the edge of a stone or a set of stone tiles is provided. The stone machine has a stone receiving area, where stones are placed and their back edges aligned. A lift bar moves a pressure plate so that the pressure plate applies a ... | 09/21/2006 |
| 20060076002 | Assembly and a method for cutting or forming an object A method and an apparatus 10 for cutting an object 64, such as a grinding wheel. Particularly, the object 64 is placed in a horizontal manner and concomitantly rotated with the cutter 14 during the entire cutting operation. The rotation occur... | 04/13/2006 |
| 20050252501 | Sharpening apparatus A sharpening apparatus having a slightly convexly or concavely curved abrasive surface, for use in sharpening woodworking tools or in other fields requiring such processing of precision parts or tools. The invention may further employ either cylindrical or conic abrasiv... | 11/17/2005 |