Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 29 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups; filtering elements therefor
Patents for B01D 29 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups; filtering elements therefor (33,527)
10/1991
10/09/1991EP0449873A1 Filtering apparatus
10/09/1991EP0250417B1 Method and an apparatus for wrapping an external tape support about a filter element assembly
10/08/1991US5055207 Filtration of cellulose ester dope
10/08/1991US5055192 Cell-type filter cartridge retaining ring
10/08/1991US5055187 Fuel filter incorporated in a fuel tank
10/03/1991WO1991014603A1 Process and installation for supplying (washing) water and use of filter papers therefor
10/02/1991EP0449707A1 Filter, especially for swimming pool
10/02/1991EP0448876A2 Filter cartridge
10/02/1991DE4022315A1 Self-contained gravity filter - uses disposable filter material
10/02/1991DE4000148A1 Appts. for decontaminating contaminated earth - by sepg. solids using high pressure water and air, washing solids with wash fluid floc-filtering obtd. colloidal dispersion, etc.
10/01/1991US5053141 Procedure and means for filtering, cleaning and homogenizing liquid substances using ultrasonics
10/01/1991US5053131 Block structure; zig-zag folded walls
10/01/1991US5053129 Filter device
10/01/1991CA1289894C Apparatus for, and methods of, operating upon a fluid
09/1991
09/30/1991CA2036639A1 Filter cartridge
09/26/1991DE4009552A1 Rotary air jet assembly for cleaning tubular-shaped filters - comprises rotary air filter jets mounted on H-frame secured to central tube rotating on bearings
09/25/1991EP0448217A2 Fluid filter for an automated analyzer and filter method
09/25/1991EP0447875A2 Filter element comprising filter material either pleated in zig-zag fashion or in the shape of a star or a slab
09/25/1991CN2085251U 天然气过滤器 Gas Filter
09/24/1991US5051174 Bar screen rake apparatus
09/24/1991US5051168 Device for screening and treating pulp
09/24/1991US5051167 Apparatus for screening a suspension of fibrous cellulose material
09/24/1991CA1289480C Filter cartridge including external cell separators
09/19/1991WO1991013673A1 A method and apparatus for filtering a fluid
09/19/1991WO1991013671A1 Device for purifying liquids, in particular water
09/19/1991WO1991012062A3 Filter
09/18/1991EP0446471A1 Process for making a microfiltration, ultrafiltration, pervaporation or reverse osmosis membrane for suspensions, emulsions or gas separation
09/18/1991EP0446389A1 Multi-layer filter cartridge
09/18/1991EP0446226A1 Method and device for separation of particles
09/17/1991US5049326 Filter element and manufacture method thereof
09/17/1991US5049273 Suction straining apparatus
09/17/1991US5049271 Fuel tank filter
09/17/1991US5049267 Filter arrangement for a fuel tank comprising shaped mesh sections
09/17/1991US5049263 Fluid strainer with blockage detection
09/17/1991US5048765 Paper material refining apparatus
09/17/1991CA1289084C Floating object removing device for oval or round pools
09/12/1991DE4006970A1 Inclined rotary sieves immersed in waste water flow - discharge separated solids into upwardly directed feed worm
09/11/1991CN2084385U Hollow synthetic dry-wet fibre spinning filter core
09/11/1991CN1054424A Process for synthetizing solid catalyst of ziegler type or solid components of solid catalyst in multifunctiuonal rotary reactor, and agitator of magnetic drive in this reactor
09/10/1991US5047215 Multiwell test plate
09/10/1991US5047157 Flexible tubular conduit; flushing port
09/10/1991US5047154 Method and apparatus for enhancing the flux rate of cross-flow filtration systems
09/10/1991US5047148 Retained wire filter element
09/10/1991US5047123 Apparatus for clarifying liquids
09/10/1991CA1288733C Apparatus for screening paper fiber stock
09/07/1991WO1991013672A2 Apparatus for separating liquids and solids
09/07/1991CA2077687A1 Apparatus for separating liquids and solids
09/05/1991DE4106742A1 Combining similarly holed micrometer pored plastic - or metal filter elements when offset to produce microporous structure
09/04/1991EP0444985A1 Double diffuser with flexible bellows and internal actuator
09/04/1991EP0444285A1 Serial crossflow filtration assembly
09/04/1991EP0444141A1 Dry cleaning solvent filtration and recovery system
09/03/1991US5045200 Apparatus and method of filtering fatty acids from cooking oil
09/03/1991US5045199 Stacked filter supports with corresponding profile seals
09/03/1991US5045194 Filter apparatus having a bag with handles
09/03/1991US5045193 Device for detection, analysis, identification and characterization by filtration and immunofiltration
09/03/1991US5045192 Filter assembly with lockable lug means
09/03/1991US5045186 Filtration method and filter press for employing the method
09/03/1991US5045183 Device for screening fiber suspensions
09/03/1991US5045111 Filtration of molten ferrous metal
09/03/1991CA1288216C Process for separating solid particles and/or liquid from a suspension, and wash column
08/1991
08/29/1991WO1991012870A1 A method and apparatus for filtering a particle-liquid suspension
08/28/1991EP0443469A2 Rotor filter press with divided filter discs
08/28/1991EP0443385A2 Process and device for separating solids from mud with screw presses
08/28/1991EP0443310A2 Garbage disposer
08/28/1991EP0442891A1 Process and device for folding back the membrane of a pressure filter for suspensions.
08/28/1991EP0442890A1 Device for operating a pressure filter.
08/27/1991US5043116 Process for producing one end-sealed ceramic double wall-structural tubes
08/27/1991US5043068 Tubular filter element with axially yieldable section
08/27/1991CA2036694A1 Double diffuser with flexible bellows and internal actuator
08/27/1991CA1288059C Method and system for cleansing a filter bed
08/27/1991CA1288057C Cross flow microfilter
08/27/1991CA1287974C Filtration apparatus
08/22/1991DE4105109A1 Self-cleaning filter for fluids - which jets interior from turbine structure automatically covering entire clogged surface
08/22/1991DE4021350A1 Paper sorting sieve - consists of drum on horizontal axis to divide the tank into two chambers
08/22/1991DE4004794A1 Cartridge filter for high viscosity materials - which has replaceable sleeve
08/21/1991EP0442069A2 Filter candle with filter sock
08/21/1991EP0441789A1 Liquid filter.
08/21/1991EP0181366B1 Improvements in and relating to filters
08/21/1991CN2083064U Porous plate-type filter
08/20/1991US5041219 Dual chamber water filter
08/20/1991US5041212 Efficiency screen plate for screening pulp
08/17/1991WO1991012064A1 Apparatus for filtering liquids
08/14/1991EP0440798A1 Magnetic filter
08/14/1991EP0440747A1 Drilling mud separation system
08/14/1991EP0440679A1 Filter for removing hydrophobic substances from electrophoretic enamel coatings
08/13/1991WO1991012061A1 Dual chamber water filter
08/13/1991US5039410 Filter apparatus having a bag with a gasket
08/10/1991WO1991012062A2 Filter
08/10/1991CA2075634A1 Refractory filter
08/09/1991WO1991012068A1 Filter insert
08/08/1991WO1991011245A1 Modular device for collecting, incubating and filtering of multiple samples
08/07/1991EP0440352A2 Cylindrical filters and their manufacture
08/07/1991EP0439532A1 Device for the parallel filtration of a plurality of samples with automatic control of filtered volumes and of clogging as well as with filter indexing, and filtration method.
08/07/1991EP0439479A1 Screen and method of manufacture
08/07/1991EP0252161B1 Device for purification, particularly filtration, of a fluid or gaseous medium
08/07/1991EP0250602B1 Device for filtration of a fluid or gaseous medium
08/07/1991CN2082190U Mud filter-dryer
08/07/1991CN1053565A Size grading method and apparatus for micropowders via sharply-turned efflux
08/06/1991US5037548 Multiple-disc filter having smaller passageways on the outlet side
08/06/1991US5036569 Immunotesting
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