Patents
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)
04/1985
04/24/1985EP0138188A2 Pressure filter
04/23/1985US4512892 Method and structure for sealing tubular filter elments
04/23/1985US4512891 Pleated filter element with controlled expansibility and frame therefor
04/16/1985US4511471 Filter apparatus for continuously thickening suspensions
04/16/1985US4511320 Extruder with a cassette filter for molten plastic material
04/16/1985US4510996 Well screen assembly with longitudinally ported connector sub
04/16/1985CA1185540A1 Process and apparatus for treating liquid sulphur
04/11/1985WO1985001449A1 Cleaning of filters
04/10/1985EP0136373A1 Process for washing drill cuttings
04/10/1985EP0136369A1 Flow line filter apparatus
04/09/1985CA1185210A1 Screening apparatus for paper making stock
04/03/1985EP0136202A1 Filter provided with a cleaning device
04/03/1985EP0135822A2 Diffusor and methods of using the same
04/02/1985US4508621 Filtration and separation device
03/1985
03/26/1985US4507203 Filter element
03/26/1985US4507201 Tube pressure filter
03/26/1985US4507200 Tubular, single-ply insert
03/26/1985US4506730 Device for assembling jacketed lengths of pipe base well screens
03/19/1985US4505816 Caps, cores, plates, hermetic sealing
03/19/1985US4505813 Wastewater treatment plant
03/14/1985WO1985000988A1 Filter leaf and method and apparatus for making same
03/12/1985US4504391 Water well sand separator
03/12/1985US4504390 Selectable filter assembly
03/05/1985US4502956 Filter assembly
02/1985
02/26/1985US4501663 Filter cartridges and methods and components for making them
02/26/1985CA1183076A1 Multi-stage counter-current concentrating system and method
02/19/1985US4500435 Backwashing
02/19/1985CA1182757A1 Method and apparatus for filtering contaminating particles from a liquid/particle mixture
02/19/1985CA1182673A1 Method of pipe line washing
02/13/1985EP0132923A2 Valve for automatically directing a flow of fluid
02/12/1985US4498990 Filtering device
02/12/1985US4498989 Cylindrical for axial flow
02/12/1985CA1182401A1 Arterial blood filter with improved gas venting
02/05/1985US4497709 Two piece screen filter
02/05/1985US4497707 Axially compressible, oleophilic, hydrophobic filter in a cylindrical vessel
02/05/1985CA1182055A1 Float bag hold down for a filter
02/05/1985CA1182054A1 Transmission fluid filter and method of manufacture
02/05/1985CA1182053A1 Filtration apparatus
01/1985
01/29/1985US4496460 Greater cleansing; efficiency
01/29/1985US4496459 Flexible filter device with means to position filter bag
01/23/1985EP0132095A2 Fluid filter element
01/23/1985EP0132084A2 Apparatus for the separation of mixtures of materials of different consistencies such as meat and bone
01/22/1985US4495073 Selective filtering of different sized particles in a fluid
01/22/1985US4495072 Filter screen device
01/22/1985US4495071 Liquid filtering device
01/22/1985US4495070 Utilizes a slurry and wash liquor
01/22/1985US4494921 Metal alloy spinneret with porosity increasing from center to edges
01/22/1985US4494603 Wire mesh well screen with welded wire support
01/16/1985EP0131348A2 Automatic backflushing filter
01/15/1985US4493766 Rotating sorter for fiber material suspensions
01/15/1985CA1180855A1 Process for filtering green liquor using lime sludge as a filtering aid
01/08/1985US4492632 Adaptor for external oil filter
01/08/1985CA1180828A1 Solids separation and liquid clarification system
01/08/1985CA1180686A1 Paper making stock screening apparatus incorporating circular apertured cylindrical pressure screen
01/02/1985CA1180287A Polymer filter cartridge of glass fibers coated with fluoroethylene polymer and process for preparing the same
12/1984
12/25/1984US4490254 Blood filter
12/25/1984US4490253 High-pressure filter housings
12/25/1984US4489505 Device for the dehydration and drying of solids, especially of hydraulically(underwater-)granulated plastic materials
12/18/1984US4488966 Filter pleat support means
12/18/1984US4488965 Arrangement for fastening filter candles and filter apparatus provided therewith
12/18/1984US4488961 Dialysis treatment
12/18/1984CA1179549A1 Extraction device
12/11/1984US4487695 Centrifuge screen basket
12/11/1984US4487689 System for filtering a liquid
12/11/1984US4487227 Spacing insert for concentric filter elements
12/06/1984WO1984004697A1 Cartridge filters and filtering installation
12/04/1984US4486304 Apparatus for continuously filtering plastic melt with noninterruptive purge
12/04/1984CA1178797A1 Integrally bonded gasket for ceramic foam filter
11/1984
11/28/1984EP0126318A2 A filter device for a fuel tank
11/28/1984EP0126213A2 Shaft for arranging a filter assembly for a rotary pressure filter
11/27/1984US4485015 Disposable, blood filtration unit
11/27/1984US4485014 Filter assembly for connecting intermediate an epidural cannula and a syringe
11/27/1984US4485011 Fuel contamination monitor with a shut off valve
11/22/1984WO1984004474A1 Sieve screen deck
11/20/1984US4483769 Filter of carbon or polyester
11/14/1984EP0124880A2 Method and apparatus for cleaning liquids
11/13/1984US4482461 Backwash control for constant volume-pressure filtration system
11/13/1984US4482457 Filtering apparatus
11/08/1984WO1984004293A1 A device for purification of liquid media such as waste water
11/07/1984EP0124246A2 Improved filter
11/06/1984US4481117 Open inner net within closed outer net
11/06/1984US4481111 Self-cleaning filter with motor incorporated therewith
11/06/1984US4481108 Belt filter
11/06/1984CA1177244A1 Molten metal filtering device
10/1984
10/31/1984EP0123316A2 Device and process for the generation or release and separation of substances or particles from liquid, plastic or solid material, and use of the device
10/30/1984US4479874 Convoluted plural layer filter assembly
10/25/1984WO1984004087A1 Mobile fluid purification unit
10/25/1984WO1984004050A1 Filter cartridge with end caps
10/24/1984EP0122867A2 Pneumatic hydro-pulse filter system and method of operation
10/24/1984EP0122692A1 Regenerable filtration apparatus useable in oil/water separation
10/24/1984EP0122439A2 Method and apparatus for enhancing the flux rate of cross-flow filtration systems
10/23/1984US4478716 Mixed-bed device for producing pure water
10/23/1984US4478714 Pressurized filtration system
10/23/1984CA1176576A1 Filter apparatus
10/23/1984CA1176575A1 Disposable filtration unit with recoverable filter
10/17/1984EP0121785A2 Method and apparatus for enhancing the flux rate of cross-flow filtration systems
10/16/1984US4477359 Process for fractionating solid particles suspended in a liquid, in particular for treating paper-industry fiber suspensions
10/16/1984US4477358 Filtration by pressurization from above while concurrently balancing with pressure from below lightweight
10/16/1984US4477350 Liquid filtering apparatus
10/16/1984US4477347 Portable water purifier