| Patents for B01D 35 - Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups; Auxiliary devices for filtration; Filter housing constructions (28,776) |
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| 01/23/1992 | WO1992000791A1 Filter for liquids with a pressurized container and a filtering cartridge driven by a vertical shaft |
| 01/23/1992 | WO1992000790A1 Filter for liquids with a pressurized container and a filtering cartridge driven by a vertical shaft |
| 01/22/1992 | EP0467226A2 Device for the separation of filtrate |
| 01/22/1992 | EP0467052A2 Filtering device with throttle device |
| 01/22/1992 | CN2093929U Cut-off water self-closed filter for drinking water |
| 01/22/1992 | CN2093689U Water clarifier |
| 01/15/1992 | EP0466456A2 Improved filter assemblies |
| 01/15/1992 | EP0465840A1 Filtering device, especially for the separation of coarse particles from a lubricant suspension and use thereof |
| 01/14/1992 | US5081448 Differential pressure indicator with temperature compensation |
| 01/14/1992 | US5080808 Method of washing an upflow filter and filter bed employed in said filter |
| 01/14/1992 | US5080127 Dosing pump system |
| 01/14/1992 | CA1294223C Self-cleaning fluid filter |
| 01/11/1992 | CA2046379A1 Filtering device, especially for the separation of coarse particles from a lubricant suspension, and process for its use |
| 01/09/1992 | DE4021372A1 Fluessigkeitsfilter mit einem druckbehaelter und einem daran angeordneten, von einer vertikalen filterpaketwelle antreibbaren filterpaket Fluessigkeitsfilter with a pressure vessels and arranged thereon, of a vertical shaft driven packet filter filtration pack |
| 01/09/1992 | DE4021371A1 Fluessigkeitsfilter mit einem druckbehaelter und einem daran angeordneten, von an einer vertikalen filterpaketwelle antreibbaren filterpaket Fluessigkeitsfilter with a pressure vessels and arranged thereon, from a vertical to filtering cartridge shaft drivable filter pack |
| 01/07/1992 | US5078875 Device for removing solid particles and liquids of higher density from a liquid of lower density |
| 01/07/1992 | US5078871 For internal combustion engines |
| 01/07/1992 | US5078862 Washer standpipe drain visual filter |
| 01/07/1992 | US5078859 Stock screening apparatus |
| 01/07/1992 | US5078572 Molten metal pump with filter |
| 01/07/1992 | US5078176 Valve assembly for a filter device |
| 01/02/1992 | EP0463289A1 Valve, especially for the lubricating oil filter of a combustion engine |
| 12/31/1991 | US5076965 Aerosol mixture solely of poly-alpha olefin |
| 12/31/1991 | US5076920 Electrostatically dissipative fuel filter |
| 12/31/1991 | US5076914 Apparatus for separating ferromagnetic materials from fluid media |
| 12/28/1991 | CA2045727A1 Pressure regulating valve |
| 12/27/1991 | EP0462122A1 Liquid filter with bypass passage. |
| 12/27/1991 | EP0267913B1 Twist on disposable filter |
| 12/26/1991 | WO1991019852A1 Screening unit for the screening of pulp, especially paper pulp |
| 12/26/1991 | WO1991019555A1 Water purification system with filter cleaning mechanism |
| 12/25/1991 | CN1015151B Filter cover for purification insert in water treatment device hollow tube |
| 12/19/1991 | DE4019689A1 Filtering appts. for filtering cutting oil contg. swarf - has tank enclosing inward flow rotating filter drum with peripheral screen and dredging swarf scrapers |
| 12/17/1991 | US5073625 Self-regulating porous heating device |
| 12/17/1991 | US5073260 Switchover device |
| 12/17/1991 | US5072851 Dynamic pressure relief seal for pressure vessels |
| 12/12/1991 | WO1991018658A1 Filtration apparatus and method |
| 12/12/1991 | DE4014551C1 Venting valve for fuel filter - has ball inside which floats in fuel and can be pressed against valve seat to prevent fuel flow into return line |
| 12/11/1991 | EP0460105A1 Bypass valve and visual indicator for a fuel system. |
| 12/10/1991 | US5071567 Buffer reservoir or second filter connected in parallel with first filter |
| 12/05/1991 | DE4113549A1 Frame for fluid filter with low mechanical wear characteristics - used with pump, for supporting filter on tank base, preventing filter damage by vibration |
| 12/05/1991 | DE4009224A1 Semi-concealed locking assembly - for filter housing |
| 12/04/1991 | CN2089760U Water filter for air pot |
| 12/03/1991 | US5069799 Series of chemically active, physically active and inactive fi lters |
| 11/28/1991 | WO1991017811A1 Self-cleaning filter for fluid distribution systems |
| 11/28/1991 | WO1991017809A1 Venting system |
| 11/28/1991 | DE4029046A1 Slub remover from sieve - for washing- or cleaning-machines, using brushes and water spraying |
| 11/25/1991 | CA2017549A1 Magnetic-field amplifier |
| 11/21/1991 | EP0456997A2 Device for separating solids from a liquid |
| 11/21/1991 | EP0456861A1 Regulating device for a filtering centrifuge |
| 11/21/1991 | EP0456781A1 Clogging indicator. |
| 11/21/1991 | DE4110091A1 Light-liq. separator using sedimentation and gravitational sepn. |
| 11/21/1991 | DE4014519C1 Filter esp. for engine lubricating oil - has cup-shaped housing, filter element and retainable relief valve |
| 11/20/1991 | CN2088894U Rotating indexing vacuum filter |
| 11/20/1991 | CN2088832U Filter for soale |
| 11/19/1991 | US5066393 Slotted flow collector/distributor for water treatment tank with one-way valves |
| 11/19/1991 | US5066391 Reusable liquid filter assembly |
| 11/19/1991 | CA1292190C Method and system for cleansing a filter bed |
| 11/13/1991 | EP0442944A4 Horizontal removable pump for filtration systems |
| 11/13/1991 | CN2088449U Treating device for drinking water |
| 11/12/1991 | US5064542 Cylindrical filter to trap fibrin |
| 11/12/1991 | US5064528 Multiple housing filter system |
| 11/12/1991 | US5064515 Electrofilter apparatus and process for preventing filter fouling in crossflow filtration |
| 11/06/1991 | EP0455333A2 Liquid sampling process and apparatus |
| 11/05/1991 | US5062968 Apparatus and process for filtering fluids |
| 11/05/1991 | US5062965 Filtration apparatus comprising an ultrasonic cleaning device and corresponding cleaning process |
| 11/05/1991 | US5062950 Prefab filter tank with warning function |
| 10/31/1991 | WO1991016124A1 Modular microporous filter assemblies |
| 10/31/1991 | DE4013487A1 Filter appts. for protecting spray nozzles in washing plant - has sieve-type filter located upstream of nozzles and operates at less than 1 bar pressure |
| 10/30/1991 | EP0454285A1 Method for cleaning water in bassins for fish culture and fish bassins adapted for it |
| 10/30/1991 | EP0453804A1 Filter for aquarium |
| 10/30/1991 | EP0191844B1 Single cartride filter |
| 10/30/1991 | CN2087528U Rotary filtering type filter |
| 10/29/1991 | US5061379 Rotation indicator for oil filter mounting in engine block |
| 10/29/1991 | US5061364 Diagnostic filter for detecting conductive and semiconductive particles in a fluid stream |
| 10/27/1991 | WO1991016541A1 Pump mounting apparatus for filtration system |
| 10/27/1991 | CA2080247A1 Pump mounting apparatus for filtration system |
| 10/27/1991 | CA2040696A1 Filter for aquarium |
| 10/23/1991 | EP0452603A1 Device for closing pressurised vessels |
| 10/23/1991 | EP0452435A1 Method and device for filtering of suspensions. |
| 10/23/1991 | EP0452432A1 Oil filter construction for hand spinning. |
| 10/22/1991 | US5059256 Method of manufacturing filters by laser treatment and device therefor |
| 10/17/1991 | DE4026230A1 Liq. filter for fuel tank - with simply manufactured mesh support in plastic casing |
| 10/17/1991 | CA2040361A1 Percussion tool fluid filter apparatus |
| 10/16/1991 | EP0451945A1 An apparatus for and method of filtering a fluid |
| 10/16/1991 | EP0233199B1 Disposable diagnostic plasma filter dispenser |
| 10/15/1991 | US5057821 Filter sentry apparatus |
| 10/15/1991 | US5057215 Reversible-flow filter assembly |
| 10/15/1991 | CA1290705C Apparatus for separating dirt-particles from cooling water in power-plants |
| 10/09/1991 | EP0450182A2 Reusable cap with integral high pressure seal and method for use |
| 10/08/1991 | US5055207 Filtration of cellulose ester dope |
| 10/08/1991 | US5055205 Pressurized continuous operating rotary drum filter and method |
| 10/08/1991 | US5055187 Fuel filter incorporated in a fuel tank |
| 10/06/1991 | WO1991015281A1 Portable water purification system |
| 10/06/1991 | CA2079809A1 Portable water purification system |
| 10/02/1991 | CN2085678U Filter for machine oil |
| 10/01/1991 | US5053141 Procedure and means for filtering, cleaning and homogenizing liquid substances using ultrasonics |
| 10/01/1991 | CA1289873C Coated chromium dioxide particles |
| 09/25/1991 | EP0448217A2 Fluid filter for an automated analyzer and filter method |
| 09/25/1991 | EP0447513A1 Filter cartridge manifold. |
| 09/24/1991 | CA1289479C Vacuum pump equipped with filter for the lubricating oil |