Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7442414 | Methods for producing reinforced carbon nanotubes Methods for producing reinforced carbon nanotubes having a plurality of microparticulate carbide or oxide materials formed substantially on the surface of such reinforced carbon nanotubes composite materials are disclosed. In particular, the present invention provid... | 10/28/2008 |
| 7431965 | Continuous growth of single-wall carbon nanotubes using chemical vapor deposition The invention relates to a chemical vapor deposition process for the continuous growth of a carbon single-wall nanotube where a carbon-containing gas composition is contacted with a porous membrane and decomposed in the presence of a catalyst to grow single-wall car... | 10/07/2008 |
| 7384663 | Method of making a three-dimensional fiber structure of refractory fibers Carbon nanotubes are incorporated in the fiber structure by growing them on the refractory fibers of the substrate so as to obtain a three-dimensional substrate made of refractory fibers and enriched in carbon nanotubes. The substrate is densified with a matrix to f... | 06/10/2008 |
| 7381445 | Method of coating a ceramic matrix composite fiber A method of coating a ceramic matrix composite fiber is disclosed. The method includes passing the composite fiber through a reaction zone along a path substantially parallel to a longitudinal axis of the reaction zone. It also includes passing a flow of a fiber coa... | 06/03/2008 |
| 7306826 | Use of biased fabric to improve properties of SiC/SiC ceramic composites for turbine engine components A method for making a ceramic matrix composite turbine engine component, wherein the method includes providing a plurality of biased ceramic plies, wherein each biased ply comprises ceramic fiber tows, the tows being woven in a first warp direction and a second weft... | 12/11/2007 |
| 7297368 | Method of making carbon fiber-carbon matrix reinforced ceramic composites A method of making a carbon fiber-carbon matrix reinforced ceramic composite wherein the result is a carbon fiber-carbon matrix reinforcement is embedded within a ceramic matrix. The ceramic matrix does not penetrate into the carbon fiber-carbon matrix reinforcement... | 11/20/2007 |
| 7290667 | Microfluidic sieve using intertwined, free-standing carbon nanotube mesh as active medium A microfluidic sieve having a substrate with a microfluidic channel, and a carbon nanotube mesh. The carbon nanotube mesh is formed from a plurality of intertwined free-standing carbon nanotubes which are fixedly attached within the channel for separating, concentra... | 11/06/2007 |
| 7252860 | Process for producing a high temperature stable fiber reinforced ceramic A process is disclosed for producing a high temperature stable fiber composite ceramic by chemical vapor infiltration (CVI) with a silicon carbide precursor in a suitable carrier gas on carbon fiber preforms or silicon carbide fiber preforms. This process is charact... | 08/07/2007 |
| 7182980 | Chemical vapor infiltration method for densifying porous substrates having a central passage Annular substrates (20) are stacked in an enclosure where they define an inside volume (24) and an outer volume (26) outside the stack. A gas containing at least one precursor of a matrix material to be deposited within the pores of the substrat... | 02/27/2007 |
| 7169437 | Method of coating an anode/collector with carbon nanotubes The electron impact surface of an anode/collector is coated with a carbon nanotube coating to reduce the production of secondary electrons and, concomitantly, to suppress the formation of neutral gases and plasma. A carbonizable resin is first applied to the electro... | 01/30/2007 |
| 7153543 | Refractory-carbon composite brake friction elements Refractory carbide particles are located in a defined area of a matrix, specifically silicon carbide particles are encapsulated within a porous matrix or carbon precursor, by locating particles of refractory carbide-forming material or a precursor thereof in a defin... | 12/26/2006 |
| 7063870 | Manufacture of functionally graded carbon-carbon composites Annular brake disc preform (15), wherein 40 to 80 layers of reinforcement fibers of at least two different lengths (11, 19) ranging from 10–60 mm are distributed in a planar gradient throughout the body of the preform, with the reinforcement fibers l... | 06/20/2006 |
| 6979490 | Fiber-reinforced ceramic composite material comprising a matrix with a nanolayered microstructure A fiber-reinforced ceramic matrix composite material exhibiting increased matrix cracking strength and fracture toughness is produced by sequentially depositing a plurality of 5-500 nanometer-thick layers of a primary ceramic matrix material phase periodically separ... | 12/27/2005 |
| 6913789 | Process utilizing pre-formed cluster catalysts for making single-wall carbon nanotubes A gas-phase method for producing high yields of single-wall carbon nanotubes with high purity and homogeneity is disclosed. The method involves using preformed metal catalyst clusters to initiate and grow single-wall carbon nanotubes. In one embodiment, multi-metall... | 07/05/2005 |
| 6907661 | Method of joining a high-temperature material composite component Nonmetallic high-temperature material, such as graphite, CFC or SiC, or components produced from these materials, are joined using the two-stage process. First the structural components are canned and the canning foil is tightly pressed onto the surface contour of t... | 06/21/2005 |
| 6902800 | Composite A composite comprising a structural component and a matrix component, the structural component comprising structural fibers and a toughening additive comprising non structural fibers of a first thermoplastic material and the matrix component comprising a second ther... | 06/07/2005 |
| 6875473 | Woven fabric with a modified ester resin for use as a wet friction liner Woven fabric of continuous, untwisted carbon yarn is impregnated with a modified cyanate ester resin or oligomer, preferably at least about 10% by weight of the combined weight of the cured resin and fabric. The cured fabric may be employed as a wet friction materia... | 04/05/2005 |
| 6682619 | Composite pre-preg ply having tailored dielectrical properties and method of fabrication thereof A structural dielectrically tailored prepreg panel includes structural materials having desired electrical qualities in one or more desired areas without loss of structural integrity or the addition of parasitic weight. In one method of manufacture an app... | 01/27/2004 |
| 6638569 | Apparatus and method for coating substrates with vacuum depositable materials An apparatus for coating a substrate with a diamond like coating or other vacuum depositable material comprises a chamber 11 having, or acting as, an anode, means for supporting a substrate 15 in the chamber, means for establishing a low pressure atmosphe... | 10/28/2003 |
| 6616971 | Composite articles including prepregs, preforms, laminates and sandwich moldings, and methods of making the same The present invention relates to high quality composite materials from fibers such as glass, polyaramid or graphite fibers, where the composite incorporates a polymer matrix embedding individual fibers. The composites are lightweight materials displaying ... | 09/09/2003 |
| 6416820 | Method for forming carbonaceous hard film A method for enabling the formation of a carbonaceous hard film having a high hardness, strong adherence to the substrate, a wide range of substrate compatibility, and structural stability, which can be formed at room temperature and may cover a large are... | 07/09/2002 |
| 6410088 | CVI (chemical vapor infiltration) densification of porous structures The present invention provides a method of densifying porous structures by chemical vapor infiltration. In characteristic manner, said densification method is implemented using toluene as a precursor for carbon. Said toluene is generally used mixed with a... | 06/25/2002 |
| 6361722 | Methods of producing carbon-carbon parts having filamentized composite fiber substrates A method of producing a carbon-carbon part having a filamentized composite fiber substrate is provided. A substrate having a plurality of discontinuous filamentized fibers and a binder that binds said filaments together to form a composite substrate is pr... | 03/26/2002 |
| 6342269 | Method for manufacturing ceramic-based composite material A matrix formation process 10 is configured with CVI process 12 and PIP process 14, 15, 16 in which a co-polymer containing at least polycarboxysilane (PCS) and polymethylsilane (PMS) is applied. Crosslinking of each polymer is performed at an intermediat... | 01/29/2002 |
| 6316051 | Process for producing silicon carbide fiber Silicon carbide fibers having an excellent mechanical strength and a superior heat resistance can be produced by the process in which activated carbon fibers having a thickness of 1 to 30 μm and a BET specific surface area of 700 to 1500 m2 /g... | 11/13/2001 |
| 6284357 | Laminated matrix composites A laminated matrix composite made of a reinforcement phase and coated with several layers of a metallic, ceramic, or polymeric matrix material, the average thickness of the layers of matrix material being between 0.005 and 5 μm thick.... | 09/04/2001 |
| 6194068 | Wire for wire saw apparatus A wire for a wire saw apparatus for slicing a material includes an element wire, a binder coated on an outside circumferential surface of the element wire, and abrasive grains dispersed in the binder. The element wire is a high tensile strength metal wire... | 02/27/2001 |
| 6180223 | Densification of a porous structure A method for the densification of a porous structure comprises providing the structure with a body of material (13, 14) which includes a susceptor element foil (14) which is more susceptible to heating by electromagnetic radiation than the other material ... | 01/30/2001 |
| 6168827 | Fiber coating method A coating is applied to reinforcing fibers arranged into a tow by coaxially aligning the tow with an adjacent separation layer and winding or wrapping the tow and separation layer onto a support structure in an interleaved manner so that the separation la... | 01/02/2001 |
| 6143376 | Method for manufacturing coated short fibers A method for manufacturing coated short fibers, in which the short fibers are coated in a reactor with at least one coating agent. The method includes exposing a short fiber bundle having a coating or a plastic matrix to a high-frequency field which disso... | 11/07/2000 |
| 6051167 | Process of making carbon-carbon composites A carbon composite structure, for example, an automotive engine piston, is made by preparing a matrix including of a mixture of non crystalline carbon particulate soluble in an organic solvent and a binder that has a liquid phase. The non crystalline part... | 04/18/2000 |
| 6037016 | Capacitively coupled RF diamond-like-carbon reactor A process of coating a non-conductive fiber with diamond-like carbon, including passing a non-conductive fiber between a pair of parallel metal grids within a reaction chamber, introducing a hydrocarbon gas into the reaction chamber, forming a plasma with... | 03/14/2000 |
| 6029476 | Method and apparatus for manufacturing an optical fiber provided with a hermetic coating A method and apparatus for manufacturing optical fibers provided with hermetic coatings, wherein the bare fiber made from a heated preform advances through a stream of reactive gaseous medium which flows at a constant speed in the direction of advance of ... | 02/29/2000 |
| 5985446 | Acetylenic carbon allotrope A fourth allotrope of carbon, an acetylenic carbon allotrope, is described. The acetylenic carbon allotropes of the present invention are more soluble than the other known carbon allotropes in many common organic solvents and possesses other desirable cha... | 11/16/1999 |
| 5916633 | Fabrication of carbon/carbon composites by forced flow-thermal gradient chemical vapor infiltration The fabrication of carbon/carbon composite disks using forced flow-thermal gradient chemical vapor infiltration process using propylene diluted with hydrogen as the reagent is disclosed. The independent variables included concentration of the reagent, tot... | 06/29/1999 |
| 5895716 | Wet friction materials, methods of making them, and apparatus containing the same This invention relates to carbon--carbon (C--C) composite comprising carbon fibers or carbon fabric, carbon char on the carbon fiber or fabric and pyrolytic carbon on the carbon char, wherein the density of the carbon composite is at least 1.3 g/cc. The i... | 04/20/1999 |
| 5866195 | Methods for forming diamond-coated superconductor wire A method for producing elongated strip, wire or cable, a portion or all of which is defined by electrically metallic superconducting material. In one form, a substrate in the form of a strip, wire or cable, is formed by extrusion, rolling, drawing, castin... | 02/02/1999 |
| 5837081 | Method for making a carbon-carbon composite A carbon-carbon composite is provided comprising a preform containing interwoven mats of graphitized vapor grown carbon fibers. The mat comprises semi-aligned, semi-continuous vapor grown carbon fibers which have been interwoven in situ during growth. The... | 11/17/1998 |
| 5820922 | Method for localized deposition of noble metal catalysts with control of morphology A combustible gas sensor that uses a resistively heated, noble metal-coated, micromachined polycrystalline Si filament to calorimetrically detect the presence and concentration of combustible gases. A thin catalytic Pt film was deposited by CVD from the p... | 10/13/1998 |
| 5817272 | Process for making a biocompatible porous holllow fiber A process of making a biocampatible porous hollow fiber that is made of polyolefine material and is coated with a biocompatible carbon material is disclosed. The biocompatible hollow fiber produced can be used as exchange material, diaphragms and/or semip... | 10/06/1998 |
