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...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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Class 340/14.5 - Bistable crosspoint


Subclass of Class 340 - Communications: electrical
Definition: Subject matter wherein an element has, or is part of,
No. of patents: 1
Last issue date: 12/19/2006


NumberTitleIssue Date
7151432Circuit and method for a switch matrix and switch sensing
Aspects of a switch matrix circuit are provided. In accordance with a circuit aspect, a plurality of switches are organized in a row and column configuration. Coupled to the plurality of switches is a current sensing circuit. The current sensing circuit includes a t...
12/19/2006
 
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