Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 24 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
Patents for B01D 24 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof (8,047)
11/1999
11/17/1999EP0956129A1 Water purification cartridge assembly with unidirectional flow through filter media
11/17/1999CN2348904Y Pulse type filter back-flushing device
11/17/1999CN2348903Y 过滤器 Filter
11/17/1999CN1046490C Magnetic filtering sewage purifying method and apparatus
11/16/1999US5984108 Fluid filtering system with variable filter layer
11/10/1999EP0955120A2 Method and apparatus for partially melting objects
11/10/1999CN2347638Y Water purifier
11/10/1999CN2347637Y Fibre filter
11/09/1999US5980761 Passing liquid through envelope comprising granular pozzolan material
11/09/1999US5980755 For controlling performance of fitler bed in liquid filtration system for efficient backwashing and filtration
11/09/1999US5980743 Filter means with fabric insert
11/04/1999WO1999055628A1 Device for biological wastewater treatment
11/03/1999CN2346779Y Water tank for separating or removing fatty or oily substances
11/03/1999CN1233970A Method and apparatus for cleaning filter surface
11/03/1999CN1233521A Method and apparatus for recovering crystals from slurry
11/02/1999US5976370 Underdrain structure for media filters
10/1999
10/27/1999EP0951330A1 Method and apparatus for cleaning a filter surface
10/27/1999EP0951327A1 Device for continuous filtration of liquids
10/27/1999CN1232790A Tank treatment assembly
10/27/1999CN1232714A Cleaning method and device for fiber bundle of fiber filter
10/27/1999CN1232713A Water filling and draining device for bag type filter
10/27/1999CN1232712A Filter
10/26/1999US5972211 Water filtration system
10/20/1999EP0949955A1 Gravity screen with burden removal and pore-cleaning means
10/20/1999EP0949953A1 Common base for a filter container and a pump
10/20/1999EP0949948A1 Method and device for continuous filtration of liquids
10/20/1999EP0949947A1 High rate filtration system
10/20/1999CN1232404A Air scour/backwash apparatus for celless traveling bridge filter
10/20/1999CN1231938A Process for preparing active drinking water
10/20/1999CN1045725C Method and apparatus for treatment of circulating cooling water in air conditioning system
10/19/1999US5968315 Process and apparatus for screening a fibre suspension in a pressurized screen having a rotating screen-drum
10/14/1999WO1999051317A1 Filter cartridges with sealing means
10/14/1999WO1999037819A3 Amplification of nucleic acids with electronic detection
10/14/1999DE19858262A1 Cleaning the sand in a sand bed filter used in a water treatment works
10/13/1999CN2342865Y Water purifying filter for drinking water making apparatus
10/13/1999CN1231220A Method and device for cleaning bottoms of pools with sand beds
10/07/1999WO1999049951A1 Apparatus for removing material from a pressurised filter
10/07/1999CA2325548A1 Apparatus for removing material from a pressurised filter
10/06/1999EP0947231A1 Water treatment device
10/06/1999EP0946248A1 Filter with counter flow clearing
10/06/1999EP0817666B1 Method of separating solids from liquids and/or separating emulsions
10/06/1999EP0682554B1 Filtration process
10/06/1999CN2341976Y Hand water purifier
10/06/1999CN1230449A Sand filtration filtering system using ozone
09/1999
09/30/1999WO1999048584A1 Filter constructions and methods
09/30/1999CA2237491A1 Sand filtration filtering system using ozone
09/29/1999CN2340764Y Water purifier by indigenous method
09/23/1999WO1999047232A1 Method for using a gravity filter
09/22/1999EP0943364A2 Device for treating a liquid, especially for the purification of water
09/22/1999CN2339279Y Dragon-type gravity filtering pool
09/22/1999CN2339278Y Waste-water filtering purifying apparatus
09/21/1999US5954973 Rotating endless belt skimmer partially immersed into contaminated water upon which high viscosity oils/greases float and having heat exchanger to reduce viscosity of heavy oil for improved fluid flow
09/16/1999WO1999046024A1 Granular-bed filter unit for filter bank composed of same
09/15/1999CN1228349A Pleating apparatus
09/15/1999CN1228348A Precoat filter
09/15/1999CN1228347A 过滤器 Filter
09/14/1999US5951861 Device for filtration and a method for conversion
09/14/1999US5951855 Filter and hydraulic mixing assembly for water treatment
09/10/1999WO1999044712A1 Antimicrobial filter cartridge
09/08/1999EP0939667A1 Cyclodextrin polymer separation materials
09/07/1999US5948252 Filtering device
09/07/1999US5948246 Vacuum filtration device
08/1999
08/31/1999US5945005 Fluid filter using floating media
08/26/1999DE19806924A1 Swimming pool water filter
08/25/1999CN2334475Y High-efficiency fibre filter
08/25/1999CN1044785C Filtration process
08/24/1999CA2131403C Compression belt separation apparatus
08/24/1999CA2027275C Process and apparatus for treating ion exchange resin
08/18/1999CN2333434Y Automatic cotroller for filter residue removing
08/18/1999CN1226182A Radial-flow fluidizable filter for fluid medium
08/11/1999CN2332721Y Water purifying device
08/10/1999US5935887 Sintered alumina aggregate particles with an inorganic oxide binder comprising aluminum, silicon, boron and magnesium; use for filtering molten metals
08/05/1999WO1999038596A1 Filter nozzle
08/04/1999EP0933470A2 Dewatering concentrator
08/04/1999EP0933337A1 Water softening assembly
08/04/1999EP0933111A2 Apparatus for distributing gas and liquid during concurrent gas/liquid backwash in filter underdrain flumes
08/04/1999CN2331405Y Hydraulic circulating water purification apparatus with filter system
08/04/1999CN1224631A Dragon type gravity filter tank
08/03/1999CA2260643A1 Dehydrating concentrator
08/03/1999CA2140245C Deep bed sand filter
07/1999
07/29/1999WO1999037819A2 Amplification of nucleic acids with electronic detection
07/29/1999CA2319170A1 Amplification of nucleic acids with electronic detection
07/28/1999EP0930927A1 Air scour/backwash apparatus for celless traveling bridge filter
07/28/1999EP0813502A4 Electrocoalescent system for decontaminating water streams
07/27/1999US5928504 Faucet-mounted water treatment device
07/21/1999CN2329660Y Pipeline-type water treater for purifying water
07/21/1999CN2329655Y Water purifier capable of reverse washing
07/21/1999CN1223160A Multi-stage water filter system
07/13/1999CA2088929C Method and apparatus for the purification of liquids
07/07/1999CN2327433Y Water purifier
07/06/1999US5919357 Filter cartridge assembly
06/1999
06/30/1999CN2326148Y Descaling thermos-bottle cover
06/23/1999CN2325095Y Air purification equipment
06/15/1999CA2136200C Water clarifier with first filtrate isolation, improved backwashing and improved bubble generation
06/15/1999CA2056797C Biological reduction and oxidation reactor, filtration and washing processes used therein
06/09/1999CN2322673Y Automatic back-flushing control device for filter pool
06/09/1999CN2322672Y Vertical pressure fluid cleaner
06/02/1999EP0919269A2 Feeder insert for a tubular cartrige filter
06/02/1999EP0919268A1 Filtering support for loose solid material and method for the production thereof
06/02/1999CN2321513Y Regulating filter material deep layer filtering-pool
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