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) |
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10/06/1992 | CA1308334C Method of cleaning filter discs in a suction dryer using ultrasonic vibration |
10/01/1992 | WO1992016294A1 A device and a method for separating liquid samples |
10/01/1992 | WO1992016272A2 Filter |
10/01/1992 | DE4131353A1 Fluid filter with annular element - has only element interchangeable |
09/30/1992 | CN1018431B Dewatering device of quantitative discharge filter cake |
09/29/1992 | US5151186 Method for cleaning filter disks and system therefor |
09/29/1992 | CA1308077C Water purification system and method for a post-mix beverage dispenser |
09/22/1992 | US5149448 Method and apparatus for thickening lime sludge |
09/22/1992 | US5149428 Water filter with extended operational period |
09/22/1992 | US5149427 Cap for underdrains in gravity filters |
09/17/1992 | WO1992015387A1 Slotted scallops or similar articles and method of making same |
09/16/1992 | CN1018238B Pressure-fed separation apparatus |
09/15/1992 | US5147560 Method for monitoring turbidity of waste liquid in backwashing filter beds |
09/15/1992 | US5147547 Oxidation and biological reduction reactor, biofiltration method and washing methods used in this reactor |
09/09/1992 | CN2115335U Pore-changed silver-carried active carbon column magnetic water-purifying unit |
09/08/1992 | US5145589 Solid-liquid separator and process for washing the same |
09/08/1992 | US5145588 Redox, absorption, filtration |
09/03/1992 | WO1992014535A1 Multiple screen filter and method |
09/01/1992 | USRE34050 Filtering system |
08/25/1992 | US5141641 Fluid separation devices |
08/25/1992 | CA1306591C Cleaning equipment |
08/19/1992 | CN2113099U Waste oil filter by oil separating from water |
08/18/1992 | USRE34031 Easily inserted disposable filters |
08/11/1992 | US5137645 Declining rate filter systems and methods |
08/11/1992 | US5137644 Pipe connection system for multiple water treatment filters |
08/11/1992 | CA1306199C Filtering apparatus |
07/30/1992 | DE4101701A1 Filter fuer werkzeugmaschinen Filters for machine tools |
07/28/1992 | US5133863 Stripping device for rotary filters |
07/28/1992 | US5133860 Solid and liquid separator with a liquid filter |
07/28/1992 | US5133619 Storm water filtration system for use with conventional storm water collection sewers |
07/23/1992 | DE4101332A1 Device for cleaning filter layer in waste water clarifier |
07/22/1992 | EP0495403A1 Apparatus for waste-water cleaning |
07/14/1992 | US5130029 Flotation method for purification of a liquid from solid and liquid impurities |
07/14/1992 | CA1305073C Rise-rate control of pulsed-bed granular medium filters |
07/11/1992 | WO1992011917A1 Continuous particle separation process |
07/11/1992 | CA2077544A1 Continuous particle separation process |
07/08/1992 | EP0139002B1 Mobile fluid purification unit |
07/08/1992 | CN2109391U Water purifying and softening sterilizer |
07/08/1992 | CN2109239U Mechanical filter for mixed filtering material of water and air |
07/01/1992 | EP0492690A1 Process and apparatus for water treatment with a granular bed for filtration or for filtration associated with a biological purification of water |
06/22/1992 | CA2057364A1 Process of and water treatment reactor using a granular bed for filtration purposes of filtration related to biological purification of water |
06/16/1992 | US5122287 Filtration system |
06/10/1992 | EP0489626A1 Reactor for biological oxidation and reduction; process for biofiltration and process for rinsing the reactor |
06/02/1992 | US5118418 Rotary multi-port platter valve and filter assembly |
06/02/1992 | CA1302302C Apparatus for separation of solid from liquid |
05/27/1992 | EP0487185A2 Moving web filter assembly |
05/26/1992 | US5116502 Elongate housing with end cap members |
05/26/1992 | US5115956 Agitator for a post-mix beverage dispenser |
05/24/1992 | CA2030731A1 Air cleaner |
05/20/1992 | EP0486138A1 Down-flow granular bed filter with automatically controlled splash plate |
05/20/1992 | EP0486075A2 Filter receptacle with rinsing channel |
05/20/1992 | CN2104936U Engine oil filtrator |
05/20/1992 | CA2055068A1 Moving web filter assembly |
05/19/1992 | US5114595 Multiple screen filter and method |
05/14/1992 | WO1992007646A1 Method and device for filtering a liquid |
05/14/1992 | CA2051004A1 Automatically controlled splash plate |
05/13/1992 | CN2104074U Deep-layer tub filter |
05/12/1992 | US5112504 System and method of decreasing waste fluid in continuous backwash filtration |
05/06/1992 | EP0483738A1 Apparatus and process for water conditioning |
05/05/1992 | US5110482 Water repurification method of city water and its equipment |
05/05/1992 | CA1300036C Filtering apparatus and method |
04/30/1992 | WO1992006766A1 Rotary filter with external adjustment of blowback valve |
04/30/1992 | WO1992006759A1 A method of washing filters, and filters for liquid filtration |
04/29/1992 | CN1016405B 流体过滤器 Fluid filter |
04/28/1992 | US5108627 Plurality of interior, exterior walls |
04/28/1992 | US5108623 Filtering solid plating wastes |
04/21/1992 | US5106501 Multi-function filter cartridge with flow distribution control |
04/21/1992 | US5106500 Portable water purification system including a filter cleaning mechanism |
04/16/1992 | WO1992005855A1 Water filter having a horizontal inlet channel |
04/15/1992 | CN2101518U Sand filter for continuous vulcanizing bed |
04/14/1992 | CA1298795C Water filtering system |
04/07/1992 | US5102535 Plant to precipitate suspended matter out of water |
04/02/1992 | DE4030376A1 Filtration system for waste water - biological filter in which water passes downward through filter bed has distributor which oxygen bubbles upward through bed |
04/01/1992 | CN2100246U Water-feeding filter balanced by lever |
03/31/1992 | US5100550 Filter nozzle with annular filter discs |
03/31/1992 | US5100067 Feeding device for a separating apparatus |
03/25/1992 | CN2099602U Domestic water magnetization purifier |
03/19/1992 | WO1992004099A1 Method of washing an upflow filter and filter bed employed in said filter |
03/17/1992 | CA1297425C Apparatus for filtering fluid medium |
03/10/1992 | CA1297212C Method of oxidizing sulfide-containing liquor |
03/03/1992 | US5093001 Suction filtration with pressurization; blockage prevention efficiency, durability |
03/01/1992 | WO1992004095A1 Filter apparatus for machine tool coolant |
02/20/1992 | WO1992002286A1 Method of treating liquids and apparatus therefor |
02/19/1992 | EP0471420A2 Filter device |
02/18/1992 | US5089147 Multiple rectangular compartments allow air pulsation and backwashing for cleaning of bed |
02/18/1992 | US5089132 Filter assembly |
02/18/1992 | US5089130 Filter cell sheet installations |
02/18/1992 | US5089117 Apparatus for sequentially backwashing a plurality of seriate filter beds |
02/18/1992 | US5089108 Strainer |
02/12/1992 | CN2095707U 过滤器 Filter |
02/11/1992 | US5087362 Flume distribution system with removable block |
02/11/1992 | US5087361 Filter floor nozzle housing and support arrangement |
01/29/1992 | EP0468001A1 Treating liquids in filters |
01/28/1992 | US5084163 Automatically controlled splash plate |
01/22/1992 | CN2093688U Drinking water treater |
01/14/1992 | US5080808 Method of washing an upflow filter and filter bed employed in said filter |
01/14/1992 | US5080807 Filtration, suspension |
01/14/1992 | CA1294223C Self-cleaning fluid filter |
01/07/1992 | US5078903 Separation Of Solids And Liquids From A Suspension |
01/07/1992 | US5078873 Filter cleaning apparatus |