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| Number | Title | Issue Date |
| 7294267 | Hollow fiber membrane module, hollow fiber membrane module unit, membrane filtration device using the same and method of operating the same A hollow fiber membrane module using a sheet-form hollow fiber membrane having excellent cleaning properties in which the pressure resistance of a hollow fiber membrane anchor section does not deteriorate, even when the membrane area increases; a hollow fiber membra... | 11/13/2007 |
| 7273549 | Membrane contactor apparatus including a module having hollow fiber membranes An apparatus including a first hollow fiber membrane module, baffle assembly, and fluid source. The module includes a plurality of elongated hollow fiber membranes located generally in adjacent, parallel relationship to each other. Each of the membranes includes a g... | 09/25/2007 |
| 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 |
| 7223339 | Hollow-fiber membrane module This invention provides an inexpensive hollow-fiber membrane module that can prevent diaphragms from peeling or coming off from the cylindrical casing. The invention includes a hollow-fiber membrane module, comprising a cylindrical casing having an inlet port for th... | 05/29/2007 |
| 7172696 | Radial dispersion mass transfer device having a semi-permeable tubular hollow fiber membrane wound around a porous core A mass transfer device having a fluid permeable core wound with many stands of a hollow fiber. A bulk fluid enters the interior of the core, passes through the side wall of the core, and along the outer surfaces of the hollow fibers. A baffle positioned in the cente... | 02/06/2007 |
| 7150932 | Production of tubular fuel cells, fuel cell modules, base elements and ion exchanger membranes The present invention relates to a composite system comprising an electrode and a membrane, which can be used as a fuel cell element or an ion-exchange membrane. ... | 12/19/2006 |
| 7150830 | Permselective membrane module Disclosed is a permselective membrane module comprising i) two permselective membrane elements formed of hollow fibers arranged substantially in parallel and bundled together and ii) a container, the two elements being arranged in the container longitudinally of the... | 12/19/2006 |
| 7063788 | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes An apparatus is described for withdrawing filtered permeate from a substrate contained in a reservoir at ambient pressure. The apparatus includes a plurality of membrane assemblies. Each assembly has a plurality of hollow fiber filtering membranes, immersed in the r... | 06/20/2006 |
| 7022231 | Apparatus incorporating potted hollow fiber membranes Apparatus incorporating potted hollow fibre membranes has a solid mass of potting material having a first face, a plurality of hollow fibre membranes sealed in the potting material. Portions of the membranes adjacent open ends of the membranes protrude from the firs... | 04/04/2006 |
| 7014765 | Filter comprising membranes made of hollow fibers The invention relates to a filter comprising membranes made of hollow fibers in which the hollow fibers are arranged as a bundle in a tubular housing. The housing comprises an end cap on each of its ends, whereby the hollow fiber bundle is placed between the ends of... | 03/21/2006 |
| 6860993 | Pump for low flow rates The present invention concerns a pump for flow rates from about 1 to 1000 nl/min in which liquid transport takes place by evaporation of a transport liquid through a wettable membrane. The pumps according to the invention are particularly suitable for applications i... | 03/01/2005 |
| 6776912 | Hemodiafiltration system and method A hemodiafiltration system for treating blood which has module having a housing in which hollow-fiber membranes are arranged in the direction of the longitudinal extent and are embedded at their ends in first and second sealing compounds joined to the inner wall of ... | 08/17/2004 |
| 6719907 | Dual-stage filtration cartridge A dual-stage filtration cartridge is provided. The cartridge can be embodied as a mid-dilution hemodiafiltration cartridge or a redundant sterilization filtration cartridge. The cartridge includes a housing having a first end and an opposing second end. The housing ... | 04/13/2004 |
| 6656356 | Aerated immersed membrane system An element of immersed, suction driven, filtering membranes has a plurality of hollow fiber membranes suspended between upper and lower headers. The lower header is movable between a first position in which the fibers are substantially elongated and secon... | 12/02/2003 |
| 6635179 | Sterile fluid filtration cartridge and method for using same A filtration assembly is presented which removes bacteria and endotoxin from a solution so that a sterile fluid is produced. The sterile fluid is suitable for direct on-line infusion to a patient from a device, such as a dialysis machine. The filtration a... | 10/21/2003 |
| 6592759 | Gel potting method and method to reduce twinning for filtering hollow fiber membranes To pot membranes in a header, a dense, viscous liquid, suspension or, preferably, a thixotropic, water soluble gel, is placed in a header pan in space reserved for a permeate channel. A plurality of hollow fiber membranes are collected together and their ... | 07/15/2003 |
| 6555005 | Scouring method A method and apparatus for removing fouling materials from the surface of a plurality of porous membranes (9) arranged in a membrane module (4) by providing, from within the module, by means (10) other than gas passing through the pores of said membranes,... | 04/29/2003 |
| 6331248 | Hollow fiber membrane module A hollow fiber membrane module comprising a module case and a hollow fiber membrane bundle comprising a plurality of hollow fiber membranes, at least one end of the bundle being bonded to and fixed on the module case, wherein the bonding portions of the h... | 12/18/2001 |
| 6224766 | Membrane treatment method and membrane treatment apparatus In a membrane treatment method, raw liquid is supplied to a circulation tank, and circulation liquid is supplied into an inter-membrane passage between filtration membranes disposed within a membrane apparatus, which is disposed separately from the circul... | 05/01/2001 |
| 6203699 | Filtration membrane module The invention relates to a capillary filtration membrane module, comprising a filter housing provided with an inlet, an outlet and a membrane compartment accommodating a bundle of capillary filtration membranes, the filtration membranes being cased at bot... | 03/20/2001 |
| 6171496 | Antimicrobial filter cartridge An antimicrobial microfiltration filter is made from a bundle of polymeric semipermeable hollow fibers treated with an antimicrobial agent and a microporous filter medium which may also be treated with an antimicrobial agent.... | 01/09/2001 |
| 6153097 | Internal staged permeator for fluid separation A gas separation membrane device comprising an internally staged permeator containing a three dimensional array of hollow fiber membranes grouped into multiple sets in intimate contact with each other is described. The incorporation of the internally stag... | 11/28/2000 |
| 6042677 | Potted header for hollow fiber membranes and method for making it A filtration device is provided for withdrawing permeate essentially continuously from a multicomponent aqueous substrate containing growing microorganisms in a reservoir. A vertical skein of fiber is scrubbed with coarse bubbles which emanate from a conv... | 03/28/2000 |
| 5938922 | Contactor for degassing liquids A contactor for degassing liquids includes a perforated core, a plurality of microporous hollow fibers, and a shell. The fibers surround the core and have two ends. A tube sheet affixes the ends of the fibers. A baffle is located between the tube sheets. ... | 08/17/1999 |
| 5906739 | Membrane filtration assembly Membrane filtration assembly where the fluid to be filtered is recirculated on the retentate side of a membrane filter and where the filtered fluid, i.e. the permeate, is recirculated on the permeate side of the membrane filter in such a manner that the t... | 05/25/1999 |
| 5882516 | Dialyzer The invention relates to a dialyzer comprised of two modules that are realized in one basic unit. The first module has a bundle of membrane capillaries and one inlet and one outlet each for the fluid to be treated and one inlet and one outlet for the dial... | 03/16/1999 |
| 5817278 | Blood oxygenator and method of oxygenating blood A blood oxygenator having a substantially cylindrical structure provided with an inner wall or core and an outer wall that define an oxygenation chamber. The oxygenation chamber contains a hollow fiber bundle comprised of hollow microporous semi-permeable... | 10/06/1998 |
| 5700372 | Dialyzer with a constricted part made of a material capable of swelled by dializing liquid A dialyzer provided in a cylindrical housing with a bundle of hollow fiber membranes and first flow paths and second flow paths separated from each other by said hollow fiber membranes and allowed to effect dialysis and ultrafiltration through the medium ... | 12/23/1997 |
| 5628909 | Membrane filters with corkscrew vortex generating means A filter comprising a tubular filter membrane (1) within which is mounted a concentric core (2) formed with a helical groove (3) and leaving a gap (G). Fluid to be filtered is passed in the upwards direction into the space between the core (2) and the mem... | 05/13/1997 |
| 5525144 | Tangential flow filtering and separating A membrane cartridge has a feed inlet at one end and a retentate outlet at the other. Membrane structure of geometry defines a feed flow path and a permeate flow path between the feed inlet and retentate outlet. The cartridge has flow restrictions along t... | 06/11/1996 |
| 5445731 | Pervaporation vessel Apparatus for breaking or separating a liquid mixture or emulsion having two or more components. The apparatus includes a closed vessel having one or more sequentially connected filtering compartments holding a filtering element such as a membrane assembl... | 08/29/1995 |
| 5358689 | Hollow fiber blood oxygenator A hollow fiber blood oxygenator is provided having an plurality of enclosed, coaxial heat exchanger coils, having a common header to insure uniform temperature in the coils. An enclosed fiber bundle is concentrically positioned inside the heat exchanger c... | 10/25/1994 |
| 5352361 | Spiral-wound hollow fiber membrane fabric cartridges and modules having flow-directing baffles This invention provides spiral-wound hollow fiber membrane fabric-containing cartridges and modules for separations and other phase contact applications, in which the cartridges contain baffles that induce radial feed fluid flow in the shell side of the h... | 10/04/1994 |
| 5288308 | Multiple stage countercurrent hollow fiber membrane module A hollow fiber separation module is provided having a single, elongated pressurizable shell and containing multiple separation stages by multiple sections of hollow fiber bundles contained within the shell, with the ends of each bundle section potted with... | 02/22/1994 |
| 5188801 | Device for the treatment of blood The invention relates to a blood-treatment device including hollow fibers which are suitable for conveying a fluid and are in a plurality of superposed layers arranged in directions which are offset from layer to layer so as to create a uniform flow of bl... | 02/23/1993 |
| 5176725 | Multiple stage countercurrent hollow fiber membrane module A hollow fiber separation module is provided having a single, elongated pressurizable shell and containing multiple separation stages by multiple sections of hollow fiber bundles contained within the shell, with the ends of each bundle section potted with... | 01/05/1993 |
| 5169530 | Hollow fiber module using fluid flow control baffles Hollow fiber membrane separation elements are improved with respect to fluid flow and contacting by dividing the bundle of hollow membrane fibers in the element into discrete sub-bundles by use of baffles in the module.... | 12/08/1992 |
| 5158581 | Fluid separation membrane module with hollow fibers having segregated active surface regions A membrane module for separation of a fluid mixture comprises a containment vessel enclosing a bundle of hollow fiber membranes having all fibers potted in a common end-plug located at a first end where all fiber bores are open. A fluid-impervious barrier... | 10/27/1992 |
| 5139741 | Blood processing apparatus of hollow fiber type A housing accommodates a hollow fiber bundle such that a blood port zone is defined between an open end surface of the hollow fiber bundle and an inner wall surface of the housing. The blood port zone includes an increased distance space, which is formed ... | 08/18/1992 |
| 5094750 | Hollow fibre filter cartridge and header A fluid filter has a bundle of hollow fibres (40) within a casing. At one end of the casing (40) there is a header (41) which has a feed passageway (55) therethrough and in communication with the interior of the casing (40) and the exterior of the fibres.... | 03/10/1992 |
