Patents
Patents for B01D 33 - Filters with filtering elements which move during the filtering operation (10,149)
10/1979
10/04/1979WO1979000765A1 Rotary drum filter and method of operation for medium cleaning
10/02/1979US4169794 Filter
10/02/1979US4169792 Water intake device
10/02/1979CA1063740A1 Process for dewatering sludge-type material and an installation for carrying out the process
10/02/1979CA1063523A1 Apparatus for continuous separation of a suspension liquid from a fibrous suspension
09/1979
09/18/1979US4168236 Consecutive, independent dewatering apparatus for improved sludge treatment
09/18/1979US4168234 Rotary pressure precoat filter with internal valving arrangement
09/11/1979CA1062174A1 Traveling band screen
09/04/1979CA1061636A1 Sludge dehydration apparatus
08/1979
08/28/1979US4166034 Of filter cake on membrane
08/21/1979US4165289 Self-sufficient heat treatment
08/14/1979US4164470 Sewage treatment
08/14/1979CA1060351A1 Microscreening method and apparatus
08/14/1979CA1060262A1 Filter presses
08/07/1979CA1059931A1 Apparatus and system for stabilizing the disc elements of a rotary concentrator for solids-containing fluids
07/1979
07/31/1979US4162982 Vacuum filter segment with replaceable sector plates
07/11/1979EP0002727A1 Process and apparatus for the continuous filtration of liquids
07/03/1979US4159951 Rotary disk vacuum filter
07/03/1979US4159950 Filter apparatus
07/03/1979US4159948 Beltless vacuum filter
07/03/1979US4159947 Dewatering system
06/1979
06/26/1979CA1057208A1 Solids concentrator with a rotor having ploughs thereon
06/19/1979US4158629 Dynamic self-cleaning filter for liquids
06/12/1979US4157966 Polyurethane lining
06/12/1979US4157961 Combined waste water clarification and trash disposal system
06/12/1979CA1056355A1 Method and device for driving liquid from a liquid separator
06/12/1979CA1056185A1 Method and apparatus for forming a fibrous web
06/05/1979US4157301 Drum construction for rotary drum filter
05/1979
05/29/1979CA1055293A1 Method and device for dewatering of suspensions
05/15/1979US4154687 Replaceable valve seat for center valve filter drum
05/15/1979US4154686 Slurry
05/15/1979CA1054531A1 Endless belt filter with filter medium enveloping the feed before pressing
05/08/1979US4153557 Bar screen
05/08/1979US4153550 Method and apparatus for the continuous filtration of material impregnated with liquid
05/01/1979US4152267 Rotary disc vacuum filter
05/01/1979US4152261 Process and a filter for filtering a liquid containing solids having a substantially different specific gravity relative to the liquid
04/1979
04/24/1979US4151094 Elongated brush
04/24/1979US4151093 Papermaking
04/10/1979CA1052152A1 Method and an apparatus for dewatering a suspension
04/03/1979US4147635 Filter apparatus
04/03/1979US4147634 Deflector blade for rotary drum filter
04/03/1979US4147633 Stacked filtering plates
04/03/1979US4147114 Waste treatment system
03/1979
03/27/1979US4146484 Doctor blade cleaning assembly
03/27/1979US4146481 Filter
03/27/1979US4146476 Peeling centrifuge
03/20/1979US4145288 Filter apparatus
03/20/1979US4144807 Device for dewatering sludge
03/20/1979CA1051051A1 Static seal with an open rotational mode
03/06/1979US4142976 Barometric leg for rotary vacuum filter
03/06/1979US4142971 Endless filter belts, tensioning
03/06/1979US4142461 Device for dewatering sludge and other material containing water and solid particles
03/06/1979CA1049935A1 Filter
02/1979
02/20/1979US4140629 Conical screen separator
02/20/1979CA1048942A1 Vacuum filtration process employing a circular vacuum box
02/20/1979CA1048854A1 Method for dewatering sludge
02/13/1979US4139472 Filter sector
02/13/1979US4139465 Method for washing filter-cakes and a spray nozzle intended for use with the method
02/13/1979CA1048419A2 Rotating radial screen filter
02/13/1979CA1048338A1 Apparatus for processing cattle excrement
02/06/1979US4138338 Filter for thickening suspensions of fibrous material
01/1979
01/30/1979US4137177 Filtering apparatus for sludgy liquids
01/30/1979US4137159 Apparatus and method for deliquifying material
01/23/1979US4136035 Apparatus for dehydration of continuously fed flow of suspension
01/23/1979US4136031 Apparatus for the recovery of liquid from a liquid medium containing solids
01/23/1979US4136028 Method for filtering a fibrous material by means of a disc filter as well as a disc filter for performing the method
01/23/1979CA1046947A1 Rotary filter wash distributor
01/16/1979US4134835 Steam injection assembly for disc filter
01/16/1979CA1046427A1 Filter cake removal by applying detaching coating to filter bands
12/1978
12/26/1978US4131548 Rotary disc filter scraper apparatus
12/26/1978US4131546 Method and apparatus for removing filterable substances from a liquid
12/26/1978CA1045046A1 Filter having a truncated conical sieve surface
12/21/1978WO1978000013A1 Rotary disc vacuum filter
12/19/1978US4130486 Method and device for the separation of a liquid-containing mixture
11/1978
11/28/1978US4127487 Filtration system
11/28/1978CA1043274A1 Apparatus for continuous dewatering of aqueous suspension
11/21/1978US4126546 Method for the filtration of a suspension or emulsion
11/14/1978US4125379 Apparatus for solvent extraction
10/1978
10/31/1978US4123363 Disk filter
10/31/1978US4123362 Pressurized seal such as for drum screens
10/31/1978US4123360 Belt filters
10/24/1978CA1041020A1 Filter elements
10/17/1978US4120911 Method for concentrating a slurry containing a solid particulate component
09/1978
09/26/1978US4116843 Liquid and solids separator
09/19/1978US4115275 Sludge dewatering apparatus
09/19/1978US4115271 Filters
09/19/1978US4115265 Vacuum filters
09/12/1978US4113556 Paper machine with twin-wire former
09/05/1978US4111115 Continuous filter press
09/05/1978CA1037878A1 Horizontal vacuum belt filter machine
08/1978
08/29/1978US4110218 Liquid cleaning apparatus having cyclonic separators
08/29/1978US4110214 Drainage device for particulate material
08/22/1978US4108778 Self-cleaning filter and vortexer
08/22/1978US4108774 Container washer having external label filter and separator with filter flushing means
08/08/1978US4105563 Continuous drum filter with improved agitator structure
08/08/1978US4105558 Apparatus for draining of muddy liquids
07/1978
07/25/1978US4102791 Double drum vacuum filter
07/18/1978US4101400 Method for dewatering sludge
07/11/1978US4100018 Method and apparatus for forming a fibrous web
07/04/1978US4098696 Centrifugal oil purifying means
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