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 |
| 6107710 | Alternator rectifier assembly connection conversion means and method Means are disclosed which allow certain automobile alternators to be converted so that their electrical hook ups are reverted to an older more efficacious terminal connection style thereby enabling the use of older alternator frames when rebuilding or rem... | 08/22/2000 |
| 5665342 | Scalp and hair care product and process of preparing same A live hair and skin treating cosmetic formulation containing a mixture of biochemicals obtained by boiling in water a composition containing potato peelings and lantana leaves.... | 09/09/1997 |
| 5636482 | Wood fence post repair device and method The invention constitutes an apparatus and method for inexpensively, repairing wooden fences which fence posts have rotted or failed. The apparatus comprises segment of 90 degree angle iron or angle aluminum or similarly tough angle hardware, which is gen... | 06/10/1997 |
| 5588687 | Child proof refrigerator door latch A device or kit for making a refrigerator door child proof is disclosed. The device comprises about four distinct parts: a segment of shock cord (lanyard), a spring clasp having a swivel eyelet butt end connected to one end of the shock cord, a first adhe... | 12/31/1996 |
| 5489045 | Door alarm/sprayer with options A portable anti-burglar device with optional fluid dispensing, alarm and fingerprint retention features is disclosed which when activated by the opening of a door or window or other violation of a secured aperture a spring biased actuating member operates... | 02/06/1996 |
| 5467640 | Pipeline testing and leak locating apparatus and method The invention constitutes an apparatus and method for inexpensively, testing sewer drainage pipes and other pipes for leaks especially where exterior inspection is impractical, which includes the use of an inflatable test ball, a remotely operated camera ... | 11/21/1995 |
| 5387018 | Child proof refrigerator door latch A device or kit for making a refrigerator door child proof is disclosed. The device comprises about four distinct parts: a shock cord, a spring clasp, one adhesive backed mounting plate or pad with a loop for receiving the spring clasp, another adhesive b... | 02/07/1995 |
| 5312641 | Non-spread peanut butter slices and method of making A non-spread, sliced peanut butter product containing chunky peanut butter, powdered egg white, flour, and an emulsifier. The ingredients are mixed together, pressed or extruded into sheets which are separated by waxed paper into pieces the size of a brea... | 05/17/1994 |
