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 |
| 5875827 | Router table push shoe The router table push shoe 10 of the present invention has an upwardly extending handle 11 which is angled slightly towards the operator and away from the router table fence 55. The push shoe of the present invention comes with an adjustable bottom guard ... | 03/02/1999 |
| 5186577 | Secondary containment system for manholes and the like The invention provides secondary contaiment for liquid carrying equipment which is in a confined area. The invention is especially well suited for retrofitting manholes containing pumps for underground gasoline distribution systems. The pumps or other equ... | 02/16/1993 |
| 4328847 | Universal woodworking machine A pair of routers are serially mounted on a pivotable support on a cutting table such that the routers may be adjusted in unison relative to the table. In addition the routers are adjustable relative to each other in a seesaw manner about a central cuttin... | 05/11/1982 |
