Patents
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)
08/1993
08/04/1993EP0422069B1 Wave screen plate and manufacturing method
08/03/1993US5232595 Deep bed filter, method of manufacture of a filter layer and a filter module
08/03/1993US5232588 Environmentally beneficial bypass filter system for use with low pressure centrifugal refrigeration equipment
08/03/1993US5232587 Stormwater inlet filter
08/01/1993CA2060430A1 Bag filter with thermoplastic tape-sealed sewn seam
07/1993
07/29/1993DE4140770A1 Waste water cleaning unit, especially for use underground - comprising cylindrical housing contg. filter element(s) with water level in housing automatically reduced and filter cake removed compressed air when required
07/28/1993EP0552344A1 Connecting adapter for filter candles
07/28/1993EP0439532B1 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
07/27/1993US5230804 Process for separating catalysts from suspensions by filtration
07/27/1993US5230798 Leaf trap assembly
07/27/1993US5230760 Method for manufacturing micro membrane pleats type filter cartridge
07/27/1993US5230131 Recyclable flexible filter tube and method for recycling filter tubes
07/22/1993DE4300493A1 Sludge filter - has closure blocks to be operated for rinsing to clean filter without interrupting the filtration
07/22/1993DE4201041A1 Filter for liquids, esp. internal combustion engine lubricants
07/21/1993EP0545934A4 Filter apparatus for machine tool coolant
07/21/1993EP0532633A4 Method for producing high solids slurries of clay water products
07/21/1993CN2138519Y Improved structure water filter
07/21/1993CN1074505A Method of manufacturing a selective isolation screen
07/20/1993US5228993 Cleanable filter system with longitudinally movable and rotatable cleaning member
07/20/1993US5228987 Method and apparatus for clarifying liquids
07/20/1993CA1320469C Feed box assembly
07/14/1993EP0304443B1 Filter construction and method for the formation of a filter construction
07/14/1993CN1074269A Well screens and screen prepacks
07/13/1993US5227137 Vacuum clamped multi-sample filtration apparatus
07/13/1993US5227076 Clarification, back-pulse filtration
07/13/1993US5227060 Apparatus and method for removing liquid from a composition and for storing the deliquified composition
07/13/1993US5227048 Backwashable filter device having means to add additional fluids to filtrate backwash fluid
07/13/1993CA1320150C Device for removing waste material
07/13/1993CA1320149C Vacuum actuated scraper arrangement for a drum filter
07/13/1993CA1320143C Tapered, spirally wound filter cartridge and method of making same
07/08/1993WO1993012859A1 Dynamic filter system
07/08/1993WO1993012858A1 Filter system for filtering fluids
07/08/1993WO1993012853A1 Vacuum filtration device
07/08/1993CA2126672A1 Dynamic filter system
07/07/1993EP0550297A2 Filter for molten metal with perforated plates made from refractory material
07/07/1993EP0549882A2 Apparatus for treating waste paint sludge
07/07/1993CN2137557Y Improved structure of water-filter
07/06/1993US5225077 Joining end caps to filter cartridges
07/01/1993DE4240656A1 Filter for engine fuel or lubricating oil
06/1993
06/30/1993EP0548910A1 Method of manufacturing a selective isolation screen
06/30/1993EP0548903A1 Method of manufacturing a selective isolation screen
06/30/1993EP0548397A1 Apparatus for the separation of particles containing solids from a water suspension
06/30/1993EP0548289A1 Method of washing an upflow filter and filter bed employed in said filter
06/30/1993CN1073742A Method of manufacturing a selective isolation screen
06/29/1993US5223155 Discharging of filter cake using water pulses
06/29/1993US5223154 Controlling water pollution
06/29/1993US5223136 Elongated fluid filtering assembly
06/29/1993US5223134 Device for the rapid fastening and unfastening of tubular filtering fabrics
06/29/1993US5223012 Dimensionally stable telescopically engaging hollow tubular segments for high speed gas filtration
06/29/1993CA1319626C Flexible filter element employing filtering sheets formed with bypass openings
06/29/1993CA1319623C Fluid filter
06/24/1993WO1993011849A1 A filter and filtration method
06/24/1993DE4235316A1 Candle for pressure candle filter - has smooth candle body of polygonal or helical cross=section
06/24/1993DE4142612A1 Filtering aq. suspensions in filter column - with closed backflushing circuit fed with filtered liq., used for treating contaminated aq. solns., coolants and lubricants from metal machining, etc.
06/23/1993EP0547865A2 Well screen with prepacked screen element
06/23/1993EP0547512A1 Crystallizer filter
06/23/1993EP0547291A1 Fuel filter and/or lubricating oil filter for internal combustion engines
06/22/1993US5221475 Filter support
06/22/1993US5221472 Vacuum filtration apparatus with horizontal filter-like conveyor
06/22/1993US5221469 Filtration system
06/22/1993US5221468 Pneumatically-operated filtering apparatus with filter movement controlled by level sensor
06/22/1993US5221437 Screening apparatus for paper making stock
06/17/1993CA2085437A1 Well screens and screen prepacks
06/16/1993EP0546520A1 Apparatus for cleaning cooling-agents or the like fluids
06/16/1993EP0546308A1 Filtration system
06/16/1993EP0545934A1 Filter apparatus for machine tool coolant.
06/16/1993CN1021201C Filter for separation of solid from hot gas or liquid
06/16/1993CN1021200C Filter core for whole flow depth purifier of lubricating oil
06/15/1993US5219468 Method for dewatering using addition of water to facilitate material movement
06/15/1993US5219006 Method and apparatus for a strainer funnel with support means
06/15/1993CA1319022C Cooking oil filtering system and method
06/14/1993CA2082184A1 Crystallizer filter
06/10/1993WO1993011087A1 Structure for a filter or a heat exchanger and a method for making the structure
06/10/1993WO1993010879A1 Ceramic filter
06/10/1993WO1993010878A1 Filter identification device
06/08/1993USRE34274 Readily removable; removing contaminants from circulating liquids such as llubricating systems
06/08/1993US5217629 Procedure for cleaning filter used in production of hydrogen peroxide from anthraquinone
06/08/1993US5217619 Liquid-solid extraction apparatus and method of using same
06/08/1993US5217605 Portable multi-element electric discharge machine filter system
06/03/1993DE4139680A1 IC engine lubricating oil filter arrangement - incorporates filter insert fitted in housing as replacement engine part
06/03/1993DE4139634A1 Fourdrinier for removal of water from wet fibre suspension - has impermeable film fused to support structure with passages for liq. and gas to pass through
06/03/1993DE4138890A1 Fan folded filter insert with folded edges prevents unfiltered gas ingress - requiring no heat applied plasticised sealing material and avoiding heat damage esp. for automotive applications
06/02/1993EP0239600B1 Apparatus for, and methods of, operating upon a fluid
06/01/1993US5215661 Multi-layer filter cartridge
06/01/1993US5215655 Dispenser interlock fuel filter system disabled in response to filter removal
06/01/1993US5215615 Process for multiple yarn winding in ordered fashion and resulting product
06/01/1993CA1318492C Filter device with non-by pass edge seal
05/1993
05/27/1993WO1993010312A1 Filter unit
05/27/1993CA2066462A1 Paper material screening/refining apparatus
05/25/1993US5213688 Shower water filter assembly
05/25/1993US5213687 Apparatus for filtering mineral slurries
05/25/1993US5213685 Cycle of filtration for liquids containing solids in suspension and rotary filter suited to realize said cycle of filtration
05/25/1993US5213684 Filter apparatus
05/25/1993CA1318283C Method and apparatus for treating fiber suspension
05/25/1993CA1318259C Filter apparatus and method
05/25/1993CA1318258C Filtration apparatus
05/25/1993CA1318257C Process for the separation of solids from suspensions having a high solids content
05/19/1993EP0542547A1 Fuel tank filter
05/19/1993DE4237151A1 Paper suspension sieve assembly - has drum rotors within sieve bodies contained in a cylindrical housing
05/19/1993CN2133349Y Solid and liquid separator with micro hole filtering