Patents
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)
09/1981
09/29/1981US4292178 Filtering apparatus
09/29/1981US4292174 Filter and cooling apparatus for dry-cleaning systems
09/23/1981EP0036060A2 Screening floor
09/22/1981US4290528 Magnetic separating apparatus with means for balancing magnetic forces
09/21/1981EP0016806A4 Oil reconditioning filter.
09/15/1981US4289583 Oil reclamation device
09/08/1981US4288325 Water tap filter
09/08/1981US4287917 Diaphragm device for damping vibrations in flowing liquids
09/01/1981US4287055 Method of sorting fibre suspensions as well as a pressure sorter for performing the method
09/01/1981US4286472 Flexible filter
09/01/1981CA1108069A1 Fuel contamination monitor having a shut-off valve
08/1981
08/25/1981US4285805 Time-delay process and control system for electrostatic filter
08/25/1981CA1107658A1 Gasket arrangement for purification apparatus
08/19/1981EP0033807A2 Electrode assembly
08/18/1981US4284500 For separating oversized particles from pressurized fluid slurry, cleaning of filter while system is sealed
08/12/1981EP0033371A1 Filter arrangement
08/11/1981US4283466 Taking place in a reaction chamber traversed by a suspension of particles separated into a concentrated fraction and a fluid fraction
08/11/1981US4283278 Nondeforming; for separation
08/04/1981US4282098 Housing cap
07/1981
07/28/1981US4280907 Separating device
07/28/1981US4280906 Filter for separating solid contaminants from a fluid, especially solid contaminants in a reactor cooling water used in nuclear reactor plants
07/22/1981EP0032317A2 A method of liquid filtration
07/21/1981US4279748 High-field gradient magnetic separator
07/21/1981US4279746 Hydraulic fluid filter and bypass valve
07/14/1981CA1104945A1 Filter method and apparatus
07/14/1981CA1104943A1 Transmission fluid filter and method for manufacture thereof
07/08/1981EP0031346A1 Dry cleaning of pressure filters for liquids.
07/07/1981US4277338 Filter assembly
07/07/1981US4277337 Deposit filtering apparatus for filtering turbid liquids
07/01/1981EP0031195A1 Fluid strainer or filter
07/01/1981EP0031126A1 Filtration device for the bacterial sterilisation of a coolant in jaw surgery appliances
06/1981
06/30/1981US4276170 Vented flexible filtration device for use in administering parenteral liquids
06/30/1981US4276167 Washer and/or thickener
06/30/1981US4276163 Hydrostatic relief valve
06/30/1981US4276162 Flame resistant sump assembly
06/30/1981US4276161 Fuel filter provided with a water level detecting means
06/30/1981EP0027447A4 Gas diffuser, aerator, or sparger apparatus and method.
06/26/1981EP0023491A4 Filter thermal bypass valve.
06/23/1981US4274961 Pressure filter
06/23/1981US4274952 Apparatus for separating solids from a suspension
06/23/1981CA1103753A1 Electrically grounded filter plate
06/23/1981CA1103590A2 Conversion of animal waste
06/16/1981US4273656 Filter for fluid passage
06/16/1981US4273651 Return line filter
06/16/1981US4273509 Self-powered cleaning unit for a fluid pump
06/16/1981CA1103172A1 Cartridge filter
06/16/1981CA1103105A1 Method of manufacturing supports for porous filters
06/10/1981EP0030077A1 Slide filter apparatus for filtering contaminants from a fluid working material
06/09/1981US4272371 Lubricating oil filter-refiner for internal combustion engines
06/09/1981US4272368 Fluid filter and indicator
06/09/1981CA1102658A1 Filter element shutoff valve
06/09/1981CA1102583A1 Side stream monitoring
06/03/1981EP0029493A1 Vessel protected against internal corrosion
06/02/1981US4271020 Valve for filter device
06/02/1981US4271015 Water treatment apparatus
06/02/1981CA1102249A1 Fluid filter and method of making same
05/1981
05/26/1981US4269681 Dielectric porous filter bed of nondeformable particles; current flow from edges to center
05/19/1981US4268391 Leak proof filter plate system for slide plate filters
05/19/1981US4268384 Spin-off filter head assembly
05/19/1981US4268382 Sieve and sieving apparatus for separating solids from a suspension
05/15/1981EP0024427A4 Filtering scraper.
05/14/1981WO1981001248A1 Process and apparatus for transferring and sterilizing a solution
05/12/1981US4267053 Using hollow fibers to remove bacteria and fungi
05/12/1981US4267046 Method and apparatus for dewatering of fine-grained materials
05/05/1981US4265771 Alluvial filter candle apparatus and a method of cleaning the same
05/05/1981US4265762 Filter assembly for use in the filtration of medical treatment liquids
05/05/1981US4265761 Fluid filtering device
05/05/1981US4265759 Device for separating a mixture
05/05/1981US4265751 External biological aquarium filter
05/05/1981CA1100595A1 Valve with indicator circuit
05/05/1981CA1100416A1 Continuous oscillation of liquid separator
04/1981
04/30/1981WO1981001112A1 Apparatus for magnetic treatment of a flowing liquid
04/29/1981EP0027447A1 Gas diffuser, aerator, or sparger apparatus and method
04/28/1981US4264446 Strainer screen
04/28/1981US4264443 Transmission fluid filter
04/28/1981US4264437 Method and apparatus for pressure screening fibrous suspensions
04/21/1981US4263140 In-line fluid filter
04/16/1981WO1981001014A1 Device for preparation of dilution liquid for drilling muds
04/14/1981US4261838 By-pass oil filtration system for internal combustion engines
04/14/1981CA1099216A1 Method and apparatus for treating liquid-containing substance mixtures, particularly fibre suspensions
04/08/1981EP0026261A1 Device for separating cleaning bodies from a fluid flowing out of a shell-and-tube heat exchanger
04/07/1981US4260477 Magnetic separators
04/07/1981US4260012 Locomotive engine coolant filter
03/1981
03/24/1981US4257888 Cartridge filter
03/24/1981CA1098049A1 Filter unit
03/24/1981CA1098047A1 Paint strainer
03/24/1981CA1097990A1 Magnetic pressure indicator with thermal lockout
03/18/1981EP0025314A2 Method of cleaning a filter press and filter press
03/18/1981EP0025095A1 High gradient magnetic separating device
03/18/1981EP0025030A1 Regeneration process of a filtering apparatus and device for implementing such process
03/17/1981US4256583 Flush-back filter
03/17/1981US4256581 Apparatus for preparing granular material by means of a strip caster
03/17/1981US4256579 Filter for liquids
03/17/1981US4256552 Chlorine generator
03/17/1981US4256474 Filter housing and filter assemblies utilizing the same
03/11/1981EP0024601A1 Microfiltration device for filtering blood coagels and microaggregates
03/11/1981EP0024514A1 Filter arrangement for the filtration of liquids, especially lubricating oil
03/11/1981EP0024427A1 Filtering scraper
03/10/1981US4255269 Method and apparatus for adapting the composition of a drilling fluid for use in making a hole in the earth by rotary drilling
03/10/1981US4254731 Filter restriction indicator