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 |
| 6583074 | Nonwoven metal fabric A nonwoven, metal fabric is formed by providing a mass of loose fibers with sufficient lubricating oil for them to be carded without disintegration of the fiber web. The fiber web is then lapped and needled to form a metal fabric of superior strength, den... | 06/24/2003 |
| 5781976 | Method of and apparatus for fabricating dimensionally stable, cylindrical filler bodies and expanded material A method of and an apparatus for the performance of the method for the fabrication of dimensionally stable, cylindrical filler bodies for increasing the surface area in receptacles, e.g. for the protection against explosive combustions, consisting of foil... | 07/21/1998 |
| 5289853 | Apparatus for producing all metal spring cushions For producing an all-metal spring cushion, a knitted piece knitted from spring wire is wound in a winding sleeve (14). In the winding sleeve (14), the end of the knitted piece is fixed to the knitted roll (76) by micro-welding. In a pressing station (22),... | 03/01/1994 |
| 5207756 | Compositions of matter for stopping fires, explosions and oxidations of materials and build up of electrostatic charges and method and apparatus for making same This invention pertains to an apparatus for producing ellipsoid forms from an expanded metal net. The apparatus includes a first frame defining a path of travel for a continuous sheet of slitted metal foil, an input feed roller for holding the continuous ... | 05/04/1993 |
| 5111561 | Method of forming spacing ring for tubes in high temperature environment A spacing ring for placement between a radially inwardly facing annular surface on a first member and a radially outwardly facing annular surface on a second member to maintain the first and second members in predetermined radially spaced relationship. Th... | 05/12/1992 |
| 4546515 | Scouring pad and method for producing same A scouring pad is formed by disposing layers of a thermoplastic resin above and below a layer of metal wool. The resin and metal are compressed and heated to a temperature above the melting point of the resin. The resulting pad has mat-like upper and lowe... | 10/15/1985 |
| 4176420 | Surface treating pad A pad for treating surfaces such as floors or the like which includes a plate member of rigid material which is wrapped with a continuous ribbon of stainless steel which is relatively thin and narrow, the wraps extending in a circular manner successively ... | 12/04/1979 |
