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| Number | Title | Issue Date |
| 7922964 | Ceramic hollow fibers made from nanoscale powder particles The invention relates to a method for producing ceramic hollow fibers from nanoscale particles and to hollow fibers produced in such a manner. The inventive method is characterized in that the ceramic material has a solids content of >25% by volume, preferably >30% ... | 04/12/2011 |
| 7163596 | Fibers and ribbons for use in the manufacture of solar cells This invention is directed to a process for the fabrication of features on a silicon wafer utilizing fibers or ribbons comprising organic polymer and inorganic material. ... | 01/16/2007 |
| 7108787 | Modified hollow-fiber membrane A modified hollow-fiber membrane which has improved surface hydrophilicity without increasing the amount of components released therefrom, is less apt to interact with living-body components, does not adsorb proteins, and is less apt to deteriorate in performance. T... | 09/19/2006 |
| 6855137 | Catheter shaft with coextruded stiffener A steerable catheter having a shaft with one or more internal stiffeners coextruded within the shaft along a portion of its length. The internal stiffeners have a higher or lower hardness than the body of the catheter shaft. The overall stiffness of the shaft varies... | 02/15/2005 |
| 6770111 | Pollucite-based ceramic with low CTE A ceramic structure which is pollucite-based and has high refractoriness and high resistance to thermal shock. The inventive structure is suitable in high temperature applications such as a filtering particulates from diesel engine exhaust. ... | 08/03/2004 |
| 6723262 | Method for manufacturing a honeycomb structure having slits A method for manufacturing a honeycomb structure having slits is provided which permits accurate forming of fine slits to cut or grind a targeted cell array alone and which is suitable for application to mass production. The method provides a honeycomb structure hav... | 04/20/2004 |
| 6696130 | Ceramic honeycomb structure and process for production thereof A ceramic honeycomb structure has an open frontal area of 50% to 85%, a porosity of 0.1% to 10%, and a proportion of the volume of pores of 1 μm or larger in diameter, in total pore volume, of 20% or more; a regenerative thermal oxidizer using the cerami... | 02/24/2004 |
| 6592804 | Method and apparatus for forming green ceramic arc tubes using pressurized fluid assisted injection molding A method and apparatus for forming a green ceramic arc tube for a metal halide lamp. A feedstock material comprising ceramic and a binder is prepared and injected into an inner cavity of a mold. The inner cavity of the mold has an inner surface that corre... | 07/15/2003 |
| 6592808 | Cermet sintering of ceramic discharge chambers A method of making a ceramic discharge chamber comprising forming a plurality of preform chambers by assembling at least two ceramic components. The preform chambers are axially aligned within a tube, comprised of an alumina cermet. The tube containing th... | 07/15/2003 |
| 6558597 | Process for making closed-end ceramic tubes A process for forming an end cap in an extruded ceramic tube. An end cap forming cavity of an end cap forming die is positioned so that, when the body of the end cap forming die is situated against an extrusion die, ceramic material is able to be forced i... | 05/06/2003 |
| 6548142 | Silica glass honeycomb structure from silica soot extrusion The present invention describes a glass honeycomb structure having a variety of shapes and sizes depending on its ultimate application. Unlike prior art honeycomb structures made from ceramics, the inventive glass honeycomb can be readily bent and/or redr... | 04/15/2003 |
| 6294128 | Method of making a supported plurality of electrochemical extruded membranes The present invention is a method for the manufature of a membrane structure for use in electrochemical conversions. The method includes providing a first mixture at a first temperature and a second mixture at a second temperature, extruding the first mix... | 09/25/2001 |
| 6261510 | Method for producing hollow fibrous membranes for microfiltration, ultrafiltration or gas separation A method for producing hollow fibrous membranes includes the steps of mixing a ceramic powder with a binder to form a paste having a sufficient viscosity to be extruded without heating, characterized in that said binder is a binder dissolved in water or a... | 07/17/2001 |
| 6063465 | Polyester container and method for making same A polyester container made from a polymer having ethylene glycol moieties, isosorbide moieties and terepthaloyl moieties, and the method of making the container is described. The polyester container is suitable for holding liquids and solids, and may be h... | 05/16/2000 |
| 5993985 | Fuel cell tubes and method of making same A method of manufacturing porous ceramic tubes for fuel cells with improved properties and higher manufacturing yield is disclosed. The method involves extruding a closed end fuel cell tube, such as an air electrode of a solid oxide fuel cell, in which th... | 11/30/1999 |
| 5972250 | Apparatus for fabricating an optical information medium The disk-shaped optical information medium of this invention includes: a first substrate having a center hole; a second substrate having a center hole; and a radiation curable resin interposed between the first and second substrates for bonding together t... | 10/26/1999 |
| 5966582 | Method for rapid stiffening of extrudates A method for extruding a stiffer powder mixture at lower extrusion pressure involves providing an aqueous mixture of inorganic powder that can be metal, ceramic, glass, glass ceramic, molecular sieve, and/or carbon, fatty acid the main chain of which has ... | 10/12/1999 |
| 5925309 | Method for the extrusion of ceramic filter media A method of manufacturing ceramic filter media for water filters involves the steps of mixing a plurality of raw ceramic materials and a plurality of extrusion-aid materials to form a mixture of constituent materials, extruding the constituent materials t... | 07/20/1999 |
| 5707584 | Method for the production of ceramic hollow fibres In order to produce ceramic hollow fibers, in particular hollow fiber membranes for microfiltration, ultrafiltration and gas separation, a paste is made filling a polymer binder system with a ceramic powder. The paste is processed by extruding through a s... | 01/13/1998 |
| 5656220 | Method for the extrusion of ceramic filter media A method of manufacturing ceramic filter media for water filters involves the steps of mixing a plurality of raw ceramic materials and a plurality of extrusion-aid materials to form a mixture of constituent materials, extruding the constituent materials t... | 08/12/1997 |
| 5487855 | Polymeric binders for enhancing green strength of pressed ceramics A composition suitable for use as a binder of ceramic materials and a method for preparing a ceramic material which provides relatively greater green ceramic strength is disclosed. The improved binder contains substantially hydrolyzed copolymer made from ... | 01/30/1996 |
| 5227105 | Process for manufacturing ceramic tubes Ceramic tubes are manufactured from a mixture that includes ceramic powder. The mixture is extruded through a die to form a tube. The tube is passed through an open-ended dryer, calciner, transition zone, sintering furnace, and cooler. Thereafter, the tub... | 07/13/1993 |
| 5059367 | Aluminum oxide tubes and process for their manufacture A process is described for the manufacture of a gas-tight aluminum oxide tube which is suitable for performing catalytic high-temperature reactions. For this purpose water, a binder and a plasticizer are added to aluminum oxide powder, the mixture is extr... | 10/22/1991 |
| 5043116 | Process for producing one end-sealed ceramic double wall-structural tubes One end-closed ceramic double wall-structural tubes are disclosed, which each include inner and outer tube members, and plural supporting portions integrating the outer and inner tube members. One end of the outer tube member only is sealed. A process for... | 08/27/1991 |
| 4923655 | Sealing of end faces of ceramic tubes A process for sealing an end face of a ceramic tube is disclosed. The process includes the steps of inserting a porous member made of an organic material into one end of the ceramic tube after the ceramic tube is dried, and pouring and depositing a slurry... | 05/08/1990 |
| 4902328 | Method of manufacturing shaped bodies from ceramics or glass A method of manufacturing shaped bodies from ceramic or glass, in which a green body is formed from the starting material for the shaped body in the form of a plastic mass consisting of microdispersed solid particles and water as a dispersing liquid and, ... | 02/20/1990 |
| 4725467 | Polycrystalline, translucent sintered tubes An improved process for producing polycrystalline, translucent sintered aluminum oxide tubes for use as high pressure gas discharge lamps is provided, in which an aluminum oxide powder mixture is dispersed and foamed prior to plasticizing. Into the dried ... | 02/16/1988 |
| 4649003 | Method for producing an inorganic sintered body A method for producing an inorganic sintered body, comprising the steps of: providing an inorganic powder; providing an oxygen-containing wax type binder; providing the inorganic powder and wax type binder in a molding device; subjecting the combined inorganic powder an... | 03/10/1987 |
| 4629593 | Process for producing polycrystalline, translucent sintered tubes An improved process for producing polycrystalline, translucent sintered aluminum oxide tubes for use as high pressure gas discharge lamps is provided, in which an aluminum oxide powder mixture is dispersed and foamed prior to plasticizing. Into the dried ... | 12/16/1986 |
| 4615851 | Preparation of beta"-alumina tubes by the extrusion process This invention relates to an extrusion method of preparing tubular green bodies, in particular those having thin walled thickness, which after burnout and sintering have properties similar or better than those of tubular bodies produced by isostatic press... | 10/07/1986 |
| 4579707 | Method for producing a thin-walled ceramic tube A thin-walled ceramic tube having a high light transmission and high dimens precision, which has been can be used as an envelope for a high pressure lamp, is produced by an extruding process in which a stiff plastic body for extruding is prepared, said bo... | 04/01/1986 |
| 4564493 | Method of manufacturing a casting nozzle brick A composition of flake graphite, binder clay and a refractory material is extruded from an auger machine into a mold to form a cylindrical graphitic casting nozzle brick. The mold includes a coaxial core terminating short of an extrusion die of the auger ... | 01/14/1986 |
| 4451418 | Method for forming a green body of ceramic arc tubes used for a metal vapor discharge lamp and a molding die for forming said tube A ceramic green arc tube for a metal vapor discharge lamp wherein an outer diameter of the arc discharging portion is larger than that of the end portions holding the discharging electrodes is produced by preparing a stiff plastic body consisting mainly o... | 05/29/1984 |
| 4409158 | Spray drying method of preparing hollow fibers Hollow fibers are prepared by spray drying a solution of a film-former in a volatile solvent. The viscosity of the solution must be 1.5 to 10 times the viscosity that usually results in spheres or microspheres. The preferred film-forming substance is a co... | 10/11/1983 |
| 4396572 | Support for porous barriers made of baked ceramic material The invention relates to a support for a ceramic porous barrier of the kind used for obtaining a concentration of uranium 235 in uranium hexafluoride by ultrafiltration. The support is formed by superposing a number of layers in the form of pastes, the pa... | 08/02/1983 |
| 4387080 | Flaky ଲ-silicon carbide and ceramics having laminar structure produced therefrom Flaky ଲ-SiC mainly composed of ଲ-SiC which is obtained from an organic silicon polymer containing the carbon and silicon atoms as the major skeletal component and the method for producing such flaky ଲ-SiC are disclosed. Such ଲ-SiC ... | 06/07/1983 |
| 4382051 | Method for firing ceramic products Clay pipes and the like are fired in a kiln through which they are conveyed by a pusher conveyer as individual articles, instead of being carried on cars or in containers. In the main firing zone of the kiln the pipes roll along a surface to maintain roun... | 05/03/1983 |
| 4364877 | Process for producing fritted alumina members A process for producing fritted alumina members having a high optical transparency and a high mechanical strength of the type involving the production of the members from a high purity alumina powder to which has been added an organic binder and a small p... | 12/21/1982 |
| 4364783 | Ultrasonic end-capping of beta"-alumina tubes This invention comprises a method of ultrasonically end-capping a tubular green body which comprises a mixture of 40-60 volume percent sinterable beta"-alumina precursor particulate and 60-40 volume percent organic sacrificial binder wherein said sacrific... | 12/21/1982 |
| 4268278 | Inorganic anisotropic hollow fibers Essentially inorganic monolithic hollow fibers having a radially anisotropic internal void volume wall structure. Process for the production of such fibers. Apparatus and processes using such fibers.... | 05/19/1981 |
