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 |
| 7240520 | Method and device for pulverizing and granulating melts In a process for pulverizing and granulating melts, especially oxidic slag, glass, or thermoplastic melts, in which the melts are heated with burner (6) in an antechamber (5) and ejected as a shroud surrounding a propellant stream into a granulating ch... | 07/10/2007 |
| 6862901 | Process and apparatus for producing glass fibers A process and an apparatus for producing glass fibers by centrifugal force are provided. Molten glass is fed into a hollow cylinder of rotating member which rotates at high speed by means of a driving device and is heated. The molten glass is ejected to an outside o... | 03/08/2005 |
| 6227009 | Method of making long, fine diameter glass fibers and products made with such glass fibers Relatively viscous glass is fiberized in a rotary fiberization process at relatively high disk speeds and through relatively large diameter holes to form long, fine diameter glass fibers which preferably are rapidly solubilized in biological fluids. The m... | 05/08/2001 |
| 5914439 | Diffusion barrier for bores of glass fiber spinners providing high corrosion and oxidative resistance at high temperatures A durable, corrosion-resistant glass fiber spinner is prepared by applying as a barrier layer a uniform layer of an alloy, compatible with the material of the spinner, on the walls of the spinner bores. A layer of platinum group metal is applied over the ... | 06/22/1999 |
| 4539029 | Process and an apparatus for the division of melts A drawing nozzle for finely dividing melts according to the nozzle blasting process, wherein (a) the contour of the nozzle inlet from the upper edge of the nozzle passes initially inside a radius R1 =40% of the narrowest cross-sectional dimensi... | 09/03/1985 |
| 4533376 | Nozzle drawing process and drawing nozzle for the separation of melts A process for finely dividing melts according to the nozzle drawing process is described wherein the pressure gradient of the gas flowing into the inlet opening of the drawing nozzle is increased by the provision of obstacles to that flow of gas. The obst... | 08/06/1985 |
| 4466819 | Method and apparatus for producing a continuous glass filament mat A method and apparatus is provided for producing a mat of continuous glass filaments at increased throughput while maintaining desirable tensile strength characteristics by means of a fluidic distribution system employing diagonally opposed Coanda effect ... | 08/21/1984 |
| 4116656 | Method of manufacturing fibers of inorganic material and apparatus for same Using a vessel which has a circular discharge port at the bottom and is provided with a nozzle in a coaxial arrangement with the port for ejecting a pressurized gas vertically downwards, a molten inorganic material such as a glass composition is allowed t... | 09/26/1978 |
