Patents
Patents for B01D 65 - Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes (9,726)
07/1993
07/22/1993CA2126745A1 Priming system
07/20/1993US5228991 Membrane filter module for filtering fluids in a cross-flow
07/18/1993CA2074670A1 Priming system
07/14/1993EP0387270B1 Transfer membrane apparatus
07/13/1993US5227071 Method and apparatus for processing oily wastewater
07/13/1993CA1320143C Tapered, spirally wound filter cartridge and method of making same
07/13/1993CA1320140C Flow control manifold for cross-flow membrane system
07/08/1993WO1993012867A1 Catalytic filtration device and method
07/08/1993WO1993012859A1 Dynamic filter system
07/08/1993CA2126672A1 Dynamic filter system
07/06/1993US5225079 Modular hollow-fiber filter unit
07/01/1993CA2085788A1 Spiral-wound hollow fiber membrane fabric cartridges and modules having integral turbulence promoters
06/1993
06/22/1993US5221484 Useful for catalyzing gas phase reactions, such as, oxidation of nitrogen oxides, oxidation of sulfur dioxide and organic vapors
06/22/1993US5221479 Dead-end type using a filter membrane having an anisotropic structure
06/22/1993US5221473 Filter cartridge assembly for a reverse osmosis purification system
06/22/1993US5221388 Selective sealing of defective gas separation hollow fibers
06/09/1993DE4140058A1 Tubular membrane fluid separator construction - avoids leakages due to temp. induced dimensional chambers, and suitable for liquids and gases
06/08/1993US5217627 System and method for processing biological fluid
06/01/1993US5215663 Easily replaceable rotor membrane pack
05/1993
05/19/1993DE4138179A1 Membrane filtration appts. - has porous tubes with membranes between agitators and housing wall to give large membrane surface without build=up
05/18/1993US5211728 Separators for gases
05/18/1993CA1317889C Control of cleaning of dialysate preparation apparatus
05/13/1993WO1993008987A1 Selective sealing of defective gas separation hollow fibers
05/11/1993US5209852 Charging bubbles on outer surface of fibers to exfoliate fine particles, draining
05/04/1993US5207917 Recycling and recovery of aqueous cleaner solutions
04/1993
04/29/1993WO1993007957A1 Apparatus for exchanging substances
04/29/1993WO1993005828A3 Integrated centrifugal pump and membrane oxygenator
04/28/1993EP0367774B1 Reverse osmosis apparatus
04/20/1993US5204002 Curved channel membrane filtration
04/20/1993CA1316578C Electronic controller for a water purifying unit
04/20/1993CA1316313C Surface-hydrophilic, highly selective semipermeable membrane
04/15/1993WO1993006918A1 Clamshell retainer used in hollow fiber membrane devices
04/15/1993CA2120246A1 Clamshell retainer used in hollow fiber membrane device
04/08/1993DE4131604A1 Outwards flow tubular membrane cross-flow filter - with internal low clearance pump rotor for solids concn.
04/07/1993EP0535546A1 Manifold segment stack with intermediate feed manifold
04/06/1993US5200076 Easily disassembled rotor system
04/06/1993CA1315706C Transfer membrane apparatus
04/01/1993WO1993005828A2 Integrated centrifugal pump and membrane oxygenator
03/1993
03/31/1993CN1020181C Apparatus for filtering machining liquid of electroerosion machine
03/30/1993US5198116 Maintenance of reverse osmosis membranes
03/17/1993EP0531576A1 Device and housing for filtering and separating of fluids
03/17/1993EP0525096A4 Modular microporous filter assemblies
03/16/1993US5194149 Filter cartridge manifold
03/16/1993US5194145 Method and apparatus for separation of matter from suspension
03/10/1993EP0381757B1 Medical instrument and production thereof
03/09/1993US5192459 Sterilant compositions
03/09/1993US5192456 Apparatus for treating activated sludge and method of cleaning it
03/09/1993US5192440 Hollow cellulose dialysis fibers
03/09/1993US5192340 Hollow fiber filter cleaning system and more particularly to the control of emissions from solvent cleaning equipment
03/03/1993EP0529921A1 Semipermeable membrane cartridge and method of making
03/03/1993EP0529682A2 Membrane filtration unit and cassette, and method of making a membrane filtration unit
02/1993
02/18/1993WO1993002781A1 Portable water purification system
02/18/1993WO1993002779A1 Concentration of solids in a suspension using hollow fibre membranes
02/18/1993WO1993002714A1 Method of checking the rate of removal of pyrogenic substances, in particular viruses, from organic material
02/16/1993CA1313625C Cleaning of reverse osmosis apparatus and method therefor
02/09/1993US5185082 Method for evaluating the virus-removing capability of a porous polymeric membrane module for removing viruses
02/03/1993EP0526372A1 Process and apparatus for cleaning filter membranes
02/03/1993EP0525096A1 Modular microporous filter assemblies
02/02/1993US5183569 Useful for collection of a filtrate from a bulk body fluid being sampled for biomedical analysis or fermentate analysis
02/02/1993US5183567 Apparatus for filtering and separating flowing medium
01/1993
01/27/1993EP0524769A2 Apparatus for a method of fluid separation
01/26/1993CA2074311A1 Apparatus for a method of fluid separation
01/07/1993EP0160014B1 Cleaning of filters
01/05/1993US5176828 Manifold segment stack with intermediate feed manifold
12/1992
12/30/1992CN1019645B Apparatus for preparation of machining liquid for electroerosion machine
12/29/1992US5174894 Blood component separation apparatus
12/23/1992EP0519028A1 Device for cleansing the machining fluid for a spark-erosion or electrochemical processing machine
12/23/1992EP0324025B1 Electrofilter apparatus and process for preventing filter fouling in crossflow filtration
12/22/1992US5173190 Reconditioning and reuse of chilled water for poultry and food processing
12/16/1992EP0518250A1 Method and apparatus for testing the integrity of filter elements
12/09/1992EP0517501A2 Method for evaluating the virus-removing capability of a porous polymeric membrane module for removing viruses
12/09/1992EP0516846A1 Bag-like filter
12/01/1992WO1992021426A1 Rotary disc filtration device
12/01/1992WO1992021425A1 Rotary filtration device and filter pack therefor
12/01/1992US5167817 Transfer membrane apparatus
11/1992
11/10/1992US5162102 Medical instrument and production thereof
11/03/1992US5160616 Filtering apparatus
11/03/1992US5160615 Hollow fiber type liquid processing apparatus
10/1992
10/29/1992WO1992018218A1 Horizontal motion quick-disconnect filter system with recirculating bypass
10/28/1992EP0510328A2 Apparatus for treating activated sludge
10/28/1992EP0213157B1 Concentration of solids in a suspension
10/22/1992DE4112231A1 Ultrafiltration using membrane assembly fabricated from fine-woven wire mesh
10/14/1992EP0508646A1 Filter element and spiral-wound membrane cartridge containing same
10/14/1992EP0508645A2 Filters and filter units
10/07/1992CN1065054A Apparatus for treating activated sludge
09/1992
09/29/1992US5151191 Filtration process using hollow fiber membrane module
09/29/1992US5151180 Radial and axial flow stage filter device
09/28/1992CA2064155A1 Filters and filter units
09/23/1992EP0504839A1 Separation process of catalysts from suspensions by filtration
09/22/1992US5149447 Creosote filtration system with a shell and tube type filtration device
09/22/1992US5149430 Fluid distributing head for a membrane filter module for filtration of fluids
09/20/1992CA2063324A1 Process for separating catalysts from suspensions by filtration
09/15/1992US5147613 Apparatus for sterilizing a medical unit
09/15/1992US5147605 Using hydrofluoric acid
09/15/1992US5147552 Method of and apparatus for cleaning filters in tangential microfiltration
09/15/1992US5147542 Manifold and manifold segment for tangential flow filtration apparatus
09/15/1992US5147541 Spiral filtration module with strengthened membrane leaves and method of constructing same
09/01/1992US5143630 Rotary disc filtration device
09/01/1992US5143612 Cylinder casting and hollow fibers
09/01/1992US5143601 Fluid purification system
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