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Class Information
Number: 210/413
Name: Liquid purification or separation > Filter > With residue removing means or agitation of liquid > Fixed filter medium and movable stirrer or cleaner
Description: Apparatus in which the filter medium is stationary and an agitator and mechanical cleaning means moves relative to it.










Sub-classes under this class:

Class Number Class Name Patents
210/415 Nontranslatory rotary 270
210/414 With plural outlets from filter casing 130


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
4709804 Self-cleaning trash rack Dec. 1, 1987
4705055 Apparatus for automatically cleaning extrusion screens in juice finishing machines and the like Nov. 10, 1987
4680112 Apparatus for the liquid treatment of solids Jul. 14, 1987
4676903 Screening apparatus Jun. 30, 1987
4673502 Fixed filter drum and movable scraper Jun. 16, 1987
4666602 Manure separator May. 19, 1987
4661253 Solid waste separator Apr. 28, 1987
4657636 High density pulp screening apparatus Apr. 14, 1987
4642189 Rotary screen of the vertical pressure type having pulp stock feed at different axial positions on the screen Feb. 10, 1987
4634521 Screening apparatus with light reject removal Jan. 6, 1987
4622152 Combined mixing, reacting, drying and filtering device Nov. 11, 1986
4599170 Filtration apparatus Jul. 8, 1986
4592835 Pressure filter Jun. 3, 1986
4582603 Apparatus for the mechanical cleaning of a cold-water stream Apr. 15, 1986
4521306 Mechanically raked bar screen with conveyor system having elastomeric rakes Jun. 4, 1985
4518499 Apparatus for fractionating solid particles suspended in a liquid May. 21, 1985
4518501 Flush-back filter May. 21, 1985
4501539 Apparatus for removing the liquid phase from a slurry of fine granular material Feb. 26, 1985
4472273 Filter lift system Sep. 18, 1984
4468325 Apparatus for effecting clarification of liquid provided with filter cleaning means Aug. 28, 1984
4464253 Continuous filter Aug. 7, 1984
4437991 Filter apparatus Mar. 20, 1984
4424125 Separator apparatus Jan. 3, 1984
4419239 Apparatus for recovering and recycling animal waste Dec. 6, 1983
4412920 Filter with top spray Nov. 1, 1983
4406786 Pressure filtering device Sep. 27, 1983
4399042 Filter devices and methods Aug. 16, 1983
4396511 Cleaning apparatus for curved filter screens Aug. 2, 1983
4392952 Bar screen with screen cleaner for waste water treatment installations Jul. 12, 1983
4389315 Filter device with permeable corrugated grid panel Jun. 21, 1983
4376705 Filtering and drying apparatus Mar. 15, 1983
4360037 Self-cleaning filter assembly for solenoid-actuated valve Nov. 23, 1982
4337158 Cyclic wave system for unclogging water screens Jun. 29, 1982
4329230 Conveyor system May. 11, 1982
4328103 Structural strainer May. 4, 1982
4299707 Apparatus for filtering melted plastic Nov. 10, 1981
4287064 Brush driving apparatus for a solid-liquid separation screen Sep. 1, 1981
4277339 Paint pigment skimmer Jul. 7, 1981
4257901 Cleanable filter and method of cleaning same Mar. 24, 1981
4253952 Weed screen and trash eliminator Mar. 3, 1981
4233159 Solid-liquid separation element and apparatus Nov. 11, 1980
4229303 Filter press with cleansing spray device Oct. 21, 1980
4222878 Raking equipment for trashracks Sep. 16, 1980
4217220 Rotary filter Aug. 12, 1980
4214988 Ditch water cleaning apparatus Jul. 29, 1980
4201672 Cake displacement means for filter presses May. 6, 1980
4146481 Filter Mar. 27, 1979
4107040 Drive device for rake arm with attached screen comb in cleaning device for a water conduit screen Aug. 15, 1978
4071451 Liquid filtration system Jan. 31, 1978
4060483 Method and apparatus for effecting the cleaning of a fluid filter Nov. 29, 1977

1 2 3 4 5 6 7










 
 
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