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)
05/1991
05/16/1991DE3937930A1 Filter appts. for turbid liquid - has disc rotor with small surface protuberances
05/15/1991EP0426786A1 A process for filtering a fluid and a filter for implementing it
05/15/1991EP0337988B1 Method of manufacturing molded and formed filters
05/14/1991US5015591 Decantation, filters, pipettes
05/14/1991US5015398 Filters for removal of particles and bubbles from photographic emulsions for photographic films
05/14/1991US5015397 Cross flow filtration apparatus and process
05/14/1991US5015376 Semi-rigid enhanced area filter element
05/14/1991US5015375 Rechargeable filter assembly
05/14/1991US5015316 Filter element
05/08/1991EP0426611A2 Device for the rapid fastening and unfastening of tubular filtering fabrics
05/08/1991EP0426064A2 High-pressure filter assembly, method and apparatus for forming high pressure filters
05/08/1991EP0425725A1 Plate structure for liquid filtration devices
05/08/1991EP0326546B1 Thermally formed stacked disc filter
05/07/1991US5013522 Corrosion products in water-cooled nuclear reactor
05/07/1991US5013461 Circulation, dislodging and reorienting particulate matter engaging filter, removing fine particles from filter without removing filter aid
05/07/1991US5013457 Pressurized backwash filter
05/07/1991US5013438 Fluid filter medium including a tubular fabric member
05/07/1991US5013415 Liquid purification system
05/02/1991WO1991005596A1 Apparatus for multi-sized filter element cartridges
05/02/1991EP0425028A1 Filtration apparatus
05/02/1991EP0424933A2 Filter device
05/02/1991EP0424439A1 Apparatus and method for the autotransfusion of blood.
05/02/1991DE3936175A1 Sucking liq. through conical bag filter wall - permits downward displacement of deposited solids towards sump by descending liq. streams
05/02/1991DE3935503A1 Ring filter element - with a short fold followed by at least two long folds
05/02/1991DE3935483A1 Filter unit for filtering radio active suspension in fluids - has 3 positions for loading, operating and unloading for continuous operation under water in fuel element pond
05/01/1991WO1991006703A1 Pulseless screen
05/01/1991CN2075978U High-efficiency continuous sewage filter
04/1991
04/30/1991US5011603 Alumina powder; high strength
04/30/1991US5011555 Method of ultrasonically cutting and sealing thermoplastic workpieces particularly a filter
04/30/1991US5011065 Screen basket and method of manufacture
04/30/1991US5011023 Conical element for filtering and separation
04/26/1991CA2028492A1 Filtration apparatus
04/25/1991DE3935151A1 Recycling paper waste sorter - has structured angle sections to give effective waste separation without fibre loss
04/24/1991EP0423827A1 Magnetic treatment device, especially for water
04/24/1991EP0423609A1 Stack of filters for fitting in a cross flow fluid filter device
04/24/1991EP0423403A1 Solid-liquid separator and process for washing the same
04/24/1991EP0261117B1 A rotating element for a screening apparatus with a contour surface
04/23/1991US5009795 Process for the dewatering of solids suspended in water and screw press separator therefor
04/23/1991US5009781 Cross-flow filtration device with filtrate network and method of forming same
04/23/1991US5009774 Pulseless screen
04/20/1991CA2025726A1 In-line leaf trap
04/18/1991WO1991004778A1 Method and device for filtering of suspensions
04/18/1991DE3934471A1 Filter cake build=up - with swivelling inner frame carrying top and bottom pot inside outer frame
04/18/1991DE3929089A1 Removing water from suspended solids using a screw-conveyor
04/17/1991EP0423043A1 Filtering device for swimmingpools
04/17/1991EP0422387A2 Filling funnel
04/17/1991EP0422137A1 Spiral filter.
04/17/1991EP0250432B1 Machine and method for assembling pleated filter material and a hollow core member
04/17/1991EP0237530B1 Filter body
04/16/1991US5008013 Filter for use in a cartridge for the preparation of a beverage
04/16/1991US5008009 Mechanism for filter cake removal
04/16/1991US5008008 Universally adaptable pool water filter structure
04/16/1991US5008007 Apparatus for filtering industrial process liquids
04/11/1991DE4003900A1 Geared drive system with oil collector - has top inlet, and oil outlet closed by filter in container wall
04/10/1991EP0420847A1 Membrane filtration apparatus and method of making a membrane filtration unit
04/09/1991US5006265 Flushing step to prevent clogging-multiple screens for efficiency
04/09/1991US5006243 Filter bag securing ring
04/09/1991US5006242 Mechanically secured wool filter cartridge
04/09/1991US5006236 Contaminant entrained flow separating apparatus
04/09/1991US5006235 Barrier flange filter assembly including cover
04/04/1991WO1991004089A1 Method and device for filtering and processing fluids
04/03/1991EP0419731A1 Disposable filter coded by colourisation
04/03/1991EP0419695A1 Slurry pumping apparatus
04/03/1991EP0419590A1 An apparatus for dewatering and squeezing material
04/02/1991US5004860 Filter system
04/02/1991US5004545 Ceramic foam filter apparatus
04/02/1991US5004542 Filter membrane with flexure
04/02/1991US5004414 Apparatus for filtering plasticized materials in extruders and like machines
03/1991
03/28/1991DE3931204A1 Reuse of paint residue by rendering toxic particles inert - in which paint slurry is dewatered to leave crosslinkable resin to coat toxic particles and mixed with thermoplastic
03/27/1991EP0419346A2 Filter for purification of platelets
03/27/1991EP0418750A1 Self-cleaning filter particularly for high-viscosity pasty fluids
03/27/1991EP0418223A1 Apparatus for draining of sludge
03/26/1991US5002666 Filter element and manufacture method thereof
03/26/1991US5002665 Device for filtering water with filter insert
03/23/1991CA2025987A1 Self-cleaning filter particularly for high-viscosity pasty fluids
03/21/1991WO1991003304A1 Micro/ultra filtration system
03/21/1991WO1991003303A1 Magnetic filter
03/21/1991WO1991003301A1 Fuel filter
03/21/1991DE4001654C1 Tubular membrane for micro-filtration of suspensions, etc. - produced from wire material of metal, plastic or glass, etc., with compressive force exerted to maintain spacings
03/20/1991EP0417692A2 Filter device with non-bypass edge seal
03/20/1991EP0417408A1 Process for making a screen drum and screen drum made according to the process
03/19/1991US5001280 Preparation of phenol by direct hydroxylation of benzene
03/19/1991US5000851 Turbine filter with pressure seal bonnet
03/19/1991US5000846 Slotted filter plate with hook attachment
03/19/1991US5000842 Method and apparatus for treating fiber suspension
03/13/1991WO1991008338A1 Sieve for a pressure sorting device for fibre suspensions
03/13/1991EP0415954A1 Strips of filter material with moulded corrugations and filter bodies made of this material
03/13/1991EP0375739A4 Water clarification system adapted for removing particulate matter of greater than a predetermined size
03/13/1991CN2072861U Fein water strainer
03/13/1991CN2072860U Movable filtering machine with double purpose
03/13/1991CN2072859U Spiral fitting oil cleaner
03/12/1991CA1281297C Direct-flushing filter and discs particularly useful therein
03/12/1991CA1281296C Filtering system
03/07/1991WO1991002578A1 A filter element
03/06/1991CN2072426U Micoporosity tube type oil wax separating device
03/05/1991US4997566 Inclined static filter for separating solids from liquids
03/05/1991US4997561 Filtering apparatus comprising parallel cylindrical filter elements disposed in a housing chamber
03/05/1991US4997555 Fuel filter assembly with heater
02/1991
02/27/1991EP0414336A2 A filtering media with support structure
02/27/1991EP0413940A2 Device for continuous and automatic draining sludge, especially sewage sludge
1 ... 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 ... 336