Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8163071 | Hollow fiber, dope composition for forming hollow fiber, and method of preparing hollow fiber using the same Disclosed is a hollow fiber that includes a hollow positioned at the center of the hollow fiber, macropores positioned at adjacent to the hollow, and mesopores and picopores positioned at adjacent to macropores, and the picopores are three dimensionally connected to... | 04/24/2012 |
| 8114199 | Sweep air system for membrane air dryer A membrane dryer includes a shell having an inner tube and an outer tube and a bundle of hollow fibers supported in the shell. A dryer air inlet into the hollow fibers and a sweep air outlet from the inner tube are at a first end of the shell. A dryer air outlet int... | 02/14/2012 |
| 7998254 | Membrane module A helically wound hollow membrane module having a core with a plurality of helically wound layers of semi-permeable hollow fibers wound on the core. The fiber wind angle with respect to any one layer of fibers may be essentially constant along the axial length of th... | 08/16/2011 |
| 7708812 | Hydrogen gas separator fixing structure and hydrogen gas separating device using the same A hydrogen gas separator fixing structure includes a gas separator having a support and a membrane provided on at least one surface of the support, which membrane contains a first metal capable of separating hydrogen gas from a hydrogen-containing gas, a metal flang... | 05/04/2010 |
| 7431754 | Artificial lung An artificial lung includes a housing, a tubular hollow fiber membrane bundle contained in the housing and providing a multiplicity of hollow fiber membranes having a gas exchange function, a gas inflow port and a gas outflow port communicating with each other throu... | 10/07/2008 |
| 7427312 | Integrated degassing and debubbling apparatus An apparatus for removing gas bubbles from a fluid includes a fluid inlet and a separation chamber that is in fluid communication with the fluid inlet. The separation chamber has first and second end portions, with the first end portion being operably oriented gravi... | 09/23/2008 |
| 7422623 | Separation membrane by controlled annealing of polyimide polymers This abstract discusses membranes needed to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. ... | 09/09/2008 |
| 7410580 | Hollow fiber module The invention relates to a hollow fiber separation module comprising an inlet (20) for the gas to be dried, an outlet (22) for dried gas, an access element (26) and a discharge element (28) for circulation gas, and a plurality of hollow f... | 08/12/2008 |
| 7407529 | System and method for reducing thermal shock in a hydrogen diffusion cell A system and method of purifying hydrogen gas. The system includes heating elements for heating the hydrogen diffusion cell to a predetermined operational temperature. A preheater is provided for heating unpurified gases that will enter the hydrogen diffusion cell. ... | 08/05/2008 |
| 7404844 | Method for making carbon membranes for fluid separation There is disclosed a method of making a high performance carbon membranes from polymer membranes. The method comprising the steps of exposing polymer precursor compounds to a polar organic liquid before pyrolysis of the exposed polymer precursor compounds. ... | 07/29/2008 |
| 7404843 | Gas separation membrane module assembly A gas-separation membrane module assembly and a gas-separation process using the assembly. The assembly includes a set of tubes, each containing gas-separation membranes, arranged within a housing. The housing contains tube sheets that divide the space within the ho... | 07/29/2008 |
| 7399345 | Capillary flow restrictor apparatus A pump for use in operably evacuating a chamber in a vacuum degassing apparatus includes one or more pumping cavities that are in fluid communication with the chamber, and a continuous vent channel that has an outlet disposed in fluid communication with a respective... | 07/15/2008 |
| 7399344 | Hydrogen peroxide recovery with hydrophobic membrane An apparatus and process are presented that provide for the separation of hydrogen peroxide from a solution having an acid and hydrogen peroxide. ... | 07/15/2008 |
| 7399339 | Polyoxometalate material for gaseous stream purification at high temperature A method for purification of a gaseous stream having at least one impurity in which a porous material having at least one polyoxometalate-based material is contacted with the gaseous stream and the at least one impurity is passed through the porous material, produci... | 07/15/2008 |
| 7396385 | System and method for efficiently separating hydrogen gas from a mixed gas source A hydrogen purification system that is used to separate hydrogen gas from a source gas. The hydrogen purification system has a hydrogen separator into which the source gas is permitted to flow. Within the hydrogen separator is at least one hydrogen permeable tube th... | 07/08/2008 |
| 7393383 | Separation membrane made from blends of polyimide with polyamide or polyimide-amide polymers Membranes are used to separate fluids for the production of oxygen-enriched air, nitrogen-enriched-air, for the separation of carbon dioxide from hydrocarbons, and the separation of hydrogen from various petrochemical and oil refining streams. Membranes are discusse... | 07/01/2008 |
| 7393390 | Hollow fiber membrane air drier Air is introduced from an intake chamber into a plurality of hollow fiber membranes in a casing. The casing is connected to a vacuum pump via a three-way valve and water vapor in air is evacuated through the membranes. Dehumidified or dried air is discharged from a ... | 07/01/2008 |
| 7393384 | Hydrogen separation using oxygen ion-electron mixed conduction membranes A process for purification of hydrogen from a stream of synthesis gas or other reformate gases is described. The process, generally conducted at temperatures of approximately 800-1000° C., involves the use of a cell in which a mixture of reformate gas and steam are... | 07/01/2008 |
| 7374601 | Air separation system and method with modulated warning flow An inerting system and method characterized by a primary air separation module configured to communicate with an upstream source of pressurized air at elevated temperature for production of a primary downstream flow of nitrogen-enriched air to be delivered to a spac... | 05/20/2008 |
| 7361211 | Moisture exchange module having a bundle of moisture-permeable hollow fibre membranes A moisture exchange module has a bundle of moisture-permeable hollow fiber membranes and at least one line element for supplying a gas stream that flows through the hollow fibers in an inner flow. The at least one line element opens out into an inflow region, which ... | 04/22/2008 |
| 7351275 | Carbon monoxide production process The present invention provides for a process for producing carbon monoxide. A feed gas stream of hydrogen, carbon monoxide and carbon dioxide is directed to a membrane unit which separates the feed gas stream into two streams. The stream containing carbon monoxide i... | 04/01/2008 |
| 7344645 | Methods of minimising the effect of integrity loss in hollow fibre membrane modules A method and apparatus for reducing the effect of integrity loss in a hollow fiber membrane module, said module including a plurality of hollow fiber membranes (5), at least one end of the fiber membranes (5) being supported in a pot (6), the me... | 03/18/2008 |
| 7338601 | Membrane separation assemblies Assemblies for use in separation of a fluid feed. Assemblies typically include an elongated housing having a fluid feed stream inlet, a residual stream outlet and a permeate stream outlet. The housing contains at least one membrane separation element to form a membr... | 03/04/2008 |
| 7323039 | Method for preparing microsphere It is to provide an improved method for preparation of microsphere from an emulsion wherein an organic phase containing an organic solvent having a boiling point lower than that of water and a hardly-water-soluble polymer is emulsified in an aqueous phase by an in-w... | 01/29/2008 |
| 7323034 | Space group Cp2 alloys for the use and separation of hydrogen A hydrogen permeation membrane is provided having a cP2 Pearson symbol (Pm3m space group) structure. Suitable alloys include an “A” element from Periodic Table groups 3b-5b and an “M” element from the Periodic Table groups 6b-1b present at a stoichiometry th... | 01/29/2008 |
| 7323033 | Nanostructured surfaces having variable permeability A nanostructured substrate is disclosed having a plurality of substrate openings disposed between the nanostructures on the substrate. When a desired fluid comes into contact with the substrate, at least a portion of the fluid is allowed to pass through at least one... | 01/29/2008 |
| 7318854 | System and method for selective separation of gaseous mixtures using hollow fibers A system and method for separation of a gas, e.g., carbon dioxide, from a gaseous mixture using a hollow fiber membrane module. The module contains an absorbent solution that is effective in absorbing the gas for an extended period, e.g., eight hours, without regene... | 01/15/2008 |
| 7316727 | High-selectivity supported SAPO membranes SAPO membranes and methods for their preparation and use are described. The SAPO membranes are prepared by contacting at least one surface of a porous membrane support with an aged synthesis gel. A layer of SAPO crystals is formed on at least one surface of the supp... | 01/08/2008 |
| 7314502 | Method and system for separating a component from a multi-component gas A method and apparatus for separating a component from a multi-component feed gas stream has a flow conduit (14) having a semi-permeable section (15) that permeates the component to be separated from feed gas stream (12). A sweep gas is provided... | 01/01/2008 |
| 7311830 | Filtration element and method of constructing a filtration assembly A coupler for a spiral membrane filtration element having a spiral membrane enclosed within a rigid outerwrap includes a center support, a plurality of spokes extending outwardly from the center support, a circular rim coupled with the spokes, with the face of the r... | 12/25/2007 |
| 7309385 | Efficient 3-D nanostructured gas separation membranes There is provided a high efficient gas separation membrane of two or more layers, which comprises a separating layer of 3-dimensional nanostructure and a supporting layer, wherein the 3-dimensional nanostructure can maximize a surface area per unit permeation area. | 12/18/2007 |
| 7306729 | Porous PTFE materials and articles produced therefrom Novel porous PTFE membranes are described possessing a unique combination of high strength, low flow resistance, and small pore size. Additionally, unique constructions with superior filtration and venting properties incorporating porous PTFE membranes are described... | 12/11/2007 |
| 7306647 | Mixed matrix membrane with mesoporous particles and methods for making and using the same A mixed matrix membrane for separating gas components from a mixture of gas components is disclosed. The membrane comprises a continuous phase polymer with inorganic porous particles, preferably molecular sieves, interspersed in the polymer. The polymer has a CO | 12/11/2007 |
| 7303609 | Manufacture of polyimide-hollow fibres A process for the manufacture of a polyimide hollow fibre comprising: (i) providing a dope solution comprising one or more polyimides dissolved in a solvent comprising 60-100 wt % N-methylpyrollidone and 0-40 wt % ethanol, (ii) providing a bore fluid, (iii) generati... | 12/04/2007 |
| 7297184 | Apparatus and method for separating gases An apparatus and method to separate a mixture of gases—such as carbon dioxide and methane—by an inorganic membrane comprising a ceramic support and a silica layer made from a silicon elastomer sol. The apparatus and method can efficiently separate the gaseous mi... | 11/20/2007 |
| 7294174 | Air dehydration membrane An air dehydration membrane is made of a hydrophilic polymer having a permeability for water vapor which is greater than its permeability for air, and having low selectivity between oxygen and nitrogen. The membrane has a hydrophilic coating, which itself may be a p... | 11/13/2007 |
| 7291204 | Separation membrane module with hollow fiber and a method of making the same A separation membrane module having hollow fibers, wherein a plurality of hollow fibers are heated and melted to bond and thermally fuse the external surfaces of the hollow fibers with each other; and a method of manufacturing a separation membrane module having hol... | 11/06/2007 |
| 7291267 | Molecular separator The present invention discloses a method and apparatus for separating particles and dissolved matter from a fluid stream. Specifically, the present invention includes a first pressure source which transports untreated fluid into a separator annulus with a filter ele... | 11/06/2007 |
| 7279025 | Separation and reaction method utilizing an oxygen ion transport element A method of separating oxygen from an oxygen containing feed and reacting the oxygen with a reactive substance and an oxygen ion transport membrane element utilized for such purposes. The oxygen ion transport membrane element has a self-supporting dense layer and a ... | 10/09/2007 |
| 7264725 | Hollow fiber membrane contactor and method of making same The instant invention is a hollow fiber membrane contactor, and method of making same. The hollow fiber membrane contactor includes (1) a shell, said shell having a internal bonding surface, an interlocking geometry ring being provided on said internal bonding surfa... | 09/04/2007 |
