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 |
| 7458235 | Process and device for formation of mineral wool and mineral wool products A method is provided to produce fine diameter glass fibers with fewer defects through a combination of lower attenuating gas velocities and the use of spinners having more and smaller holes. The method uses a device for internal centrifugation of mineral fibers incl... | 12/02/2008 |
| 7354541 | Method and device for making mineral fiber felts The subject of the invention is a unit for manufacturing felts (6) which are formed from crosslinked mineral fibers, comprising at least one pair of conveyors formed by a lower conveyor (11) and an upper conveyor (12) which are placed opposite e... | 04/08/2008 |
| 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 |
| 6536241 | Method and device for drawing out mineral wool fibres by free centrifuging At least two machines placed side by side, including a series of centrifuging wheels arranged in a cascaded manner and driven in rotation about axes all having substantially in a same direction. Two consecutive wheels rotate in opposite directions, and ar... | 03/25/2003 |
| 6313050 | Mineral wool composition The subject of the invention is a mineral wool capable of being dissolved in a physiological medium and comprising the constituents below in the following percentages by weight: SiO2 38-52% Al2 | 11/06/2001 |
| 6107224 | Glass compositions for high thermal insulation efficiency glass fibers Glass compositions displaying decreased far infrared radiation transmission, high biosolubility, and excellent moisture resistance are capable of fiberization by the rotary process, and may be used to prepare thermal insulation products exhibiting high th... | 08/22/2000 |
| 5961897 | Manufacture of man-made vitreous fiber products A process is provided for making filled mineral fiber products which comprises applying mineral melt to a rotating fiberizing rotor and thereby throwing from the rotor as fibers and forming a substantially annular cloud of fibers, spraying binder into the... | 10/05/1999 |
| 5906669 | Man-made vitreous fiber products and processes and apparatus for their production The invention relates to an arrangement for cleaning a wool chamber in the manufacture of mineral wool. In the manufacture of mineral wool a binder is added to the stream of fibers which is deflected towards the wool chamber and the binder deposits itself... | 05/25/1999 |
| 5900206 | Method of making a fibrous pack A method of making a fibrous pack includes centrifuging at least two sets of mineral fibers from molten mineral material using at least two rotary mineral fiber spinners that are arranged in a machine direction along a collection surface, directing each s... | 05/04/1999 |
| 5688301 | Method for producing non-woven material from irregularly shaped glass fibers An irregularly shaped glass fiber is provided which enjoys improved resiliency, and openness in pack structures. Wool packs and other wool portions having such irregularly shaped fibers may be processed directly through needling to form a non-woven materi... | 11/18/1997 |
| 5614132 | Method for manufacturing a mineral fiber product A method for manufacturing a mineral fiber product includes centrifuging mineral fibers with a spinner, forming a veil of the mineral fibers moving in the direction of the axis of the spinner, directing toward the veil, from a position within the veil, or... | 03/25/1997 |
| 5468274 | Process and apparatus for making mineral wool fibres The invention relates to fiberizing apparatus for forming mineral wool and a process using that apparatus. The apparatus comprises a set (1) of at least three rotors mounted for rotation about respective horizontal axes. Melt is poured onto the top rotor ... | 11/21/1995 |
| 5458822 | Method for manufacturing a mineral fiber product A method for manufacturing a mineral fiber product comprises centrifuging mineral fibers with a spinner, forming a veil of the mineral fibers moving in the direction of the axis of the spinner, directing toward the veil, from a position within the veil, p... | 10/17/1995 |
| 4759974 | Glass fiberization Glass fibers for insulation uses are produced by means of a centrifugal spinner which introduces glass streams into an annular attenuating blast adjacent the periphery of the spinner. An improved product quality and/or production rate as well as prolonged... | 07/26/1988 |
| 4468241 | Method and apparatus for fiberizing meltable materials The high velocity gradients associated with the shear layer or boundary layer of a supersonic gas stream, especially the potential core thereof, are applied to form fibers of a melted material projected across such gradients. Optimization of the effects o... | 08/28/1984 |
| 4309244 | Process for manufacturing boron nitride fiber mats A process is disclosed for producing a non-woven, boron nitride-bonded boron nitride fiber mat, suitable for use as an electric cell separator in a lithium-sulfide battery. Molten boron oxide is centrifugally spun into strands and attenuated by an annular... | 01/05/1982 |
| 4298367 | Method of and device for cleansing in a fibre blanket manufacturing plant In a plant of making a blanket from fibres which are thrown or set together with polymerizable binder particles or droplets onto a perforated conveying belt, a method of cleansing consisting in: associating means for sucking air loaded with fibre dust and... | 11/03/1981 |
| 4263034 | Method and apparatus for control of fiberization of thermoplastic material A process and apparatus for controlling the operating conditions, particularly the temperature and pressure, of attenuating gas employed in the fiberization of thermoplastic materials. The arrangement disclosed provides for temperature and pressure contro... | 04/21/1981 |
| 4234329 | Method for the production of mineral fibers with unitary fiber length characteristics A sample of mineral fibers is dispersed in a liquid and viscosity of the dispersion is measured. The viscosity value provides a rapid measure of the length of the fibers. The measurement is sufficiently rapid that adjustments can be made to operating cond... | 11/18/1980 |
| 4087267 | Controls for use in fiberization systems embodying means for suppression of pollution System for suppression of pollution in fiber attenuating operations, especially in mineral fiber insulation blanket production. The system disclosed provides gas blast attenuation of the attenuable material in a fiber forming chamber and for recirculation... | 05/02/1978 |
