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