Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 36 - Filter circuits or combinations of filters with other separating devices
Patents for B01D 36 - Filter circuits or combinations of filters with other separating devices (7,816)
01/1990
01/25/1990DE3824450A1 Filter device for liquids
01/24/1990EP0351629A2 Process and device for separating and keeping various solvents separated
01/23/1990US4895648 Filter cover for a purification insert in a water treatment device with a hollow tube
01/16/1990US4893651 Self-venting drain value assembly
01/10/1990EP0350248A1 Apparatus for treating photographic process waste liquor and method therefor
12/1989
12/27/1989EP0347872A1 Ventilating device for an oil tank preferably made of plastics
12/27/1989EP0347620A2 Pressure filter
12/21/1989DE3820678A1 Pressure filter
12/21/1989DE3820675A1 Oil filter for an internal combustion engine
12/20/1989EP0346540A1 Coolant processing system
12/13/1989CN2049151U Powdered coal filter
12/12/1989US4886599 Filter cartridge with series elements for chemical and mechanical filtration
12/06/1989EP0344152A1 Process and installation for dewatering waste water sludge.
12/05/1989US4885089 Liquid distributor cap for a filter cartridge
11/1989
11/30/1989DE3817948A1 Apparatus for separating off sediment from a liquid, in particular flocculated precipitates from waste waters
11/29/1989CN1037464A Filter cover for purification insert in water treatment device with hollow tube
11/23/1989EP0342308A2 Integrated separator for solid and gaseous contaminants in a fluid
11/22/1989CN1037353A Dry recovering method of black carbon as by-product of heavy oil gas-making
11/21/1989US4882061 Filter apparatus
11/15/1989EP0341356A1 Filtering device
11/14/1989US4880374 Filter exchange device for an extrusion molding machine
11/14/1989CA1262871A1 Filter block mounted fuel processor apparatus
11/08/1989EP0340382A2 Screen cover for a cleaning insert in a water regeneration device with a hollow tube
11/08/1989CN2047198U Sterilizing water-purification device
11/07/1989US4879048 Method and facility for removing sludge from water
11/07/1989US4878924 Integrated separator for solid and gas contaminants in engine oil
11/02/1989DE3813775A1 Liquid filter
11/01/1989CN2046765U High-efficient water purifier
10/1989
10/25/1989EP0338432A2 Filtering device for a liquid mixture
10/25/1989CN1036514A Water purification device with intake-funnel
10/19/1989DE3902770A1 Backwash filter for liquid media
10/19/1989DE3813890C1 Vacuum belt filter
10/18/1989EP0337851A1 Filtering device, especially for a lubrication circuit of a turbomachine
10/18/1989EP0337663A2 Filter and bleed valve therefor
10/18/1989EP0337455A1 Device and method for reducing volume of aqueous waste effluents
10/17/1989US4874529 Flocculating overflow
10/04/1989EP0335066A2 Water purification device with inlet funnel
10/03/1989US4871449 Clarifier and screw compactor liquid-solid separator
09/1989
09/27/1989EP0334527A2 Slime control for primary filtration systems
09/26/1989CA1261559A1 Sewer and catch basin cleaner with self-cleaning feature and method of use thereof
09/19/1989US4867886 Method and apparatus for controlling sludge flocculant flow
09/19/1989US4867877 Waste disposal/separation system
09/13/1989EP0331699A1 Process and installation for clarifying liquids, in particular raw juice
09/12/1989US4865632 Integrated separator for solid and gaseous contaminants in a fluid
09/05/1989US4863617 Process and apparatus for separating solid-liquid compositions
08/1989
08/31/1989DE3805276A1 Filter arrangement for radioactive materials
08/29/1989US4861492 Using organic polymeric flocculants
08/29/1989US4861466 Pressure filter assembly with bleed valve
08/23/1989CN2043243U Automatically regenerative device of waste oil
08/16/1989CN2042745U Minute flocculation pressure filter cell
08/09/1989EP0262151A4 Filter pump head assembly.
08/08/1989US4855065 Apparatus and process to separate and remove extraneous matter from a liquid stream
08/08/1989US4855041 Fluid filter drain assembly
08/01/1989US4853013 Filtering structure for a vent device and device including said structure
07/1989
07/18/1989CA1257550A1 Gravity belt thickener and belt press combination
07/12/1989EP0323701A1 Fluid filter apparatus
07/12/1989CN1004749B Vertical multi-sectional water purification device and its clearing method
07/11/1989CA1257413A1 Apparatus for clarification of water
07/06/1989DE3740804C1 Fuel supply device for an internal combustion engine
07/05/1989EP0322649A2 Process and apparatus for degassing and filtering liquids
07/05/1989CN1033574A Air filtration system for ducted range hoods
07/05/1989CN1033573A Multipurpose dust-cleaning tower for air environmental protection
07/04/1989US4844803 Filter press with a plurality of membrane filter plates
07/04/1989US4844793 Fuel heating type fuel filter device
07/04/1989US4844414 Valve improvements
06/1989
06/29/1989WO1989005685A1 Fuel filter and separator
06/27/1989US4842744 Filter bed of particulate material moves downwardly in a cylindrical annular container bounded by fluid permeable walls, circulated and returned to the top; prevents bridge development and flow irregularities
06/27/1989US4842722 Pressure sorter
06/27/1989CA1256387A1 Rotary vacuum filters with a horizontal filtration plane
06/21/1989EP0321068A1 Apparatus and process to separate and remove extraneous matter from a liquid stream
06/20/1989US4840732 Fuel tank cleaning system
06/13/1989US4839064 Siphon usable below grade; efficient
06/13/1989US4839046 Bio-reactor chamber
06/08/1989DE3739896A1 Appliance for treating industrial effluents or of leachate from tips
06/07/1989CN2038905U Multifunctional water treatment device
06/07/1989CN2038809U Cleaning-out fluorine, bacterium and dust filter
06/06/1989US4836923 Cartridge and cover assembly for fluid filters
06/06/1989US4836611 Method and apparatus for drilling and separating
05/1989
05/30/1989US4834875 Two stage liquid filtraton apparatus
05/30/1989US4834874 Removal of liquid from a liquid-solids mixture
05/30/1989US4834783 Rotary separator
05/24/1989EP0317525A1 A method of removing heavy metals from waste liquids discharged by dental surgery equipment, and a device for the implementation of such a method
05/23/1989US4832854 Apparatus and process to separate and remove extraneous matter from a liquid stream
05/23/1989US4832836 Series filters
05/18/1989WO1989004293A1 Filter band press with preliminary liquid extraction device
05/16/1989US4830761 Removing water and particulates by venturi suction from bottom, filtering, recirculating
05/09/1989US4828717 Device and method for reducing volume of aqueous waste effluents
05/03/1989DE3836064A1 Verfahren zum abtrennen von ton aus ultrafeiner kohle und zur anschliessenden entwaesserung der kohle sowie vorrichtung zur durchfuehrung des verfahrens A method for disconnecting from ton of ultrafine coal and subsequent dehydration of the coal and apparatus for performing the method
05/02/1989US4826609 Filter media for filter systems
05/02/1989US4826590 Cooking oil filtering system
04/1989
04/27/1989DE3800961C1 Fuel filter, especially for diesel fuel, with a collecting chamber for precipitated water
04/25/1989US4824567 Fuel oil filter assembly
04/11/1989US4820426 Process for the processing of fluids containing suspended particles
04/06/1989WO1989002776A1 Filter media for filter systems
04/06/1989WO1989002707A1 Process and installation for clarifying liquids, in particular raw juice
04/04/1989US4818414 Retaining waste filtrate
04/04/1989US4818400 Cyclone and filter belt apparatus for dewatering
03/1989
03/28/1989US4816225 Dropping pieces directly into heated liquid sulfur
03/22/1989EP0162053B1 Single-ended, spin-on fuel water separator
03/09/1989WO1989001816A1 Water clarification system adapted for removing particulate matter of greater than a predetermined size
1 ... 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79