Patents
Sitemap › B01 - Physical or chemical processes or apparatus in general › B01D - Separation › B01D 29 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups; filtering elements therefor
Patents for B01D 29 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups; filtering elements therefor (33,527)
12/1990
12/13/1990DE3918377A1 Centrally mounted scouring arm rotating round liq. filter - comprising segments in clean liq. section of filter above transverse partition
12/13/1990DE3917517A1 Filter candle with insert in bore - which narrows under pressure of incoming suspension minimising filtrate loss during candle replacement
12/12/1990EP0402243A1 Filtering device particularly for the purification of swimming pool water
12/12/1990EP0401633A2 Backwashable filter mounting
12/12/1990EP0401329A1 Oil filter for internal combustion engines.
12/11/1990US4976857 Filter element and fabrication methodology
12/11/1990US4976854 Oil filter II
12/11/1990US4976852 Fuel filter
12/11/1990US4976677 Process for the production of filters, and a filter produced by the process
12/10/1990WO1990014872A1 Method and apparatus for clarifying liquids
12/10/1990CA2034006A1 Method and apparatus for clarifying liquids
12/06/1990DE3918267A1 Pressurised liq. filter subsequently clears residual liq. - by spare elements, held inactive by valves during main operation
12/05/1990EP0400223A1 Filter for diesel fuel, provided with self-adjusting heating means
12/05/1990EP0400170A1 Method of manufacturing a filter for liquid fuels
12/05/1990EP0400096A1 Filter element and filtration process.
12/05/1990EP0400020A1 Screen plate
12/04/1990US4975206 Connecting drains to a prefilter connected to a second filter connected to vat inlets for circulation
12/04/1990US4975183 Filter for separating solids from liquids
12/04/1990US4974462 Filter punch and filter collection system
11/1990
11/29/1990WO1990014684A1 Preparation of substrates
11/29/1990WO1990014145A1 Filter-dryer
11/29/1990DE3916888A1 Filter candle element - has spring on one side of the filter separation wall, allowing in-situ adjustment of compression force
11/29/1990DE3916745A1 Filter device with tubular cartridge - obtd. by applying controlled gas pressure to ensure steady liq. level rise inside filter casing and to provide even distribution of cake
11/29/1990DE3915958A1 Appts. for filtering liquids - by flowing upwards through moving particulate filter bed, then re-directed to parallel filter when certain differential pressure is reached
11/28/1990EP0399889A1 Earth formation sampling and testing method and apparatus with filter means, and method for manufacturing such filter
11/28/1990EP0399639A2 Filter assembly
11/28/1990EP0399539A2 Liquid filtering vessel
11/28/1990EP0399309A2 Tubular filter element
11/28/1990EP0399086A1 Filtering apparatus for cleaning plastic melts
11/28/1990CN2066348U Automatic cleaning device for filter
11/28/1990CN2066347U On-line water-coal-slurry filter
11/27/1990US4973407 Filter for filtering liquids
11/27/1990US4973406 Device for the separation of particulated solids from a pressurized fluid
11/27/1990US4973405 Floating suction head assembly
11/27/1990US4973404 Micro/ultra filtration system
11/23/1990CA2008809A1 Filter assembly
11/22/1990EP0398685A1 A method and an apparatus for treating fiber suspension
11/22/1990EP0398459A1 Filter cartridge
11/22/1990EP0398437A1 Device, suitable for the continuous recovery of a product in suspension, as well as a process for the continuous recovery of a product in suspension with the aid of the said device
11/22/1990EP0398131A2 Apparatus to press out beet slices
11/22/1990EP0397864A1 Agglutination reaction vessel
11/21/1990CN2065942U 机油滤清器 Oil Filters
11/20/1990US4971694 Double diffuser with backflush pistons
11/20/1990US4971688 Apparatus for separating at least two elements contained in a liquid or gaseous fluid by means of an absorbent filtering material
11/20/1990CA1276567C Fluid filter with internal spacer
11/19/1990CA2011454A1 Filter screen assembly
11/17/1990CA2016966A1 Method and an apparatus for treating fiber suspension
11/15/1990DE3915529A1 Material-extractor from liq. in trough - has auger with no bearings at bottom or shaft at middle
11/15/1990DE3914409A1 Resisting collapse of thin corrugated filter strips - by relative positioning of V and W=section beads
11/14/1990EP0396684A1 Cross-flow filtration device and method of making.
11/14/1990EP0396601A1 Filtration assembly comprising a pump
11/14/1990CN1010377B Pulse jet fabric filter
11/14/1990CN1010375B Process for separating the catalyst particles from the charge in the catalytic cracking
11/13/1990US4969999 Cylindrical screen construction for a filter and method of producing the same
11/13/1990US4969992 Separating conveyor
11/08/1990DE4008399A1 Operating drying and dust removing appts.
11/08/1990DE4007492A1 Pressure filter
11/07/1990EP0396079A2 Apparatus for dewatering sludges and similar substances
11/07/1990EP0396008A2 Vacuum pump with suction filter
11/07/1990CN2065092U Heat-8insulation sandwich suction filter
11/07/1990CN2065091U Filtering body (element)
11/07/1990CN2065090U Multi-purpose rapid filter
11/06/1990US4968600 Apparatus for separating cell suspension
11/06/1990US4968425 Filter of depth layer type
11/06/1990US4968424 Backflush filter element
11/06/1990US4968423 Filter leaf
11/06/1990CA1275973C Rotating element for a screening apparatus with a contour surface
11/01/1990WO1990012635A1 Attachment for a separator
10/1990
10/31/1990EP0395044A2 Scraper filter system
10/31/1990EP0394585A2 Oil filter
10/31/1990EP0394532A1 Filtration process and apparatus for liquid media
10/31/1990EP0394251A1 Filtration unit with pressure compensation
10/31/1990EP0394236A1 Filter plate
10/31/1990DE3914410A1 Corrugated thin webs superimposed in filters - separate contacting upper and lower bead projections by straight stretches
10/30/1990US4966758 For analyzing antibodies and antigens; vacuum drawing liquid through filter
10/30/1990US4966718 Vacuum filter panel
10/30/1990US4966702 Multiple-disc type filters
10/30/1990US4966701 Filter
10/30/1990US4966700 Apparatus for separating into its two phases a substance consisting of solid matter suspended in a liquid
10/30/1990US4966697 Fluid filter retaining device
10/26/1990WO1990012634A1 A process for filtering a fluid and a filter for implementing it
10/26/1990CA2031208A1 Process for filtering a fluid and a filter for implementing it
10/25/1990DE3917175A1 De-watering mud, sludge, etc. - by passing down between two concentric conical filter surfaces, compressing into pellets and drying
10/25/1990DE3912948A1 Drainage layer in sintered metal backing for filter - is penetrated by anchoring bores filled with backing material
10/24/1990EP0393393A1 Filter housing for a by-pass oilfilter for fine-filtering in an oilfilter installation in internal combustion engines
10/24/1990EP0393277A2 Filter assembly
10/23/1990US4965107 One end-sealed ceramic double wall-structural tubes
10/23/1990US4965032 Filter device with non-bypass edge seal
10/23/1990US4965028 Method of injection molding thermoplastic through multiple gates
10/23/1990US4964993 Multiple-use molten metal filters
10/23/1990US4964987 Cross flow filter apparatus
10/23/1990US4964984 Blood filter
10/23/1990US4964983 Reservoir
10/23/1990CA1275509C Method and apparatus for drying sludge
10/17/1990EP0392726A2 Filter device
10/17/1990EP0392340A2 Press filter
10/17/1990CN2063842U Filter of using self-cleaning cartridge
10/16/1990US4963271 Pressurization of a mixture of cellulose, cellulose ethers, or cellulose derivatives through a candle filter
10/16/1990US4963260 Liquid filtering device
10/16/1990US4963258 Filter with perforated fin portions extending from outer cylindrical wall
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