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 |
| 7356858 | Sit to stand support apparatus A rolling chassis supports dual lifting beams pivotably mounted on adjustable supporting pins. The beams are pivoted by rollers raised by dual driving piers. Each beam carried a pair of blocks for a rope running from a locking system on the chassis to one side of an... | 04/15/2008 |
| 7073874 | Vehicle drive A rotatable assembly for a vehicle road wheel includes a vehicle suspension knuckle (16), a drive shaft (24), a first bearing (30) carried by the knuckle for rotatably supporting the drive shaft, a wheel hub (13) drivingly connected to th... | 07/11/2006 |
| 6889617 | Collision energy absorbing structure of vehicle Disclosed is a collision energy absorbing structure of a vehicle capable of relieving impact by using a tubular pipe member having equally-sized rectangular cross section and equal plate thickness and including no inside ribs and by adding a suitable trigger, and be... | 05/10/2005 |
| 5333896 | Bird cage type suspension with bearing connected to axle tube A bird cage having a roller bearing imposed between the axle casing and the bird cage frame. The roller bearing may be sealed to effectively alleviate the problem of dirt accommodation interfering with the rotational action of the axle casing with respect... | 08/02/1994 |
