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Class Information
Number: 210/415
Name: Liquid purification or separation > Filter > With residue removing means or agitation of liquid > Fixed filter medium and movable stirrer or cleaner > Nontranslatory rotary
Description: Apparatus in which the filter medium has a curved surface and in which the cleaning or agitating means moves about a fixed axis and has nontranslatory rotary motion.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8661972 Screw separator Mar. 4, 2014
8585897 Cylindrical back washing purification apparatus Nov. 19, 2013
8534468 Screen basket optimized for removal of stickies from adhesives-contaminated recyclable fiber Sep. 17, 2013
8388836 Waste separator apparatus and system for treating animal waste and the like Mar. 5, 2013
8360250 Self-cleaning valve Jan. 29, 2013
8333282 Device for dewatering of bulk or free-flowing input material by compression Dec. 18, 2012
8292086 Strainer apparatus Oct. 23, 2012
8177073 Water processor May. 15, 2012
8114290 Filter device Feb. 14, 2012
8025156 Method and apparatus for separating and dewatering slurries Sep. 27, 2011
7993519 Filter apparatus Aug. 9, 2011
7980395 Cross-flow filtration system Jul. 19, 2011
7887702 Filtering apparatus employing the rotor for multistage generating variable vortex flow Feb. 15, 2011
7718055 Automatic cleaning drain structure May. 18, 2010
7674377 Filter apparatus Mar. 9, 2010
7662296 Filtering and compacting device for solid particles suspended and contained in fluids, such as slurry from mechanical operations Feb. 16, 2010
7641767 Apparatus for treating a fibrous suspension Jan. 5, 2010
7597201 Device for cleaning fibrous suspensions for paper production Oct. 6, 2009
7473375 Method and device for removal of residual products Jan. 6, 2009
7445123 Ceramic filter with a ceramic filter core cleaning device Nov. 4, 2008
7438810 Sieve device Oct. 21, 2008
7413656 Aerobic sewage system Aug. 19, 2008
7398886 Press for dewatering a humid substance, in particular residual refuse Jul. 15, 2008
7399407 Pressure filter for aquariology Jul. 15, 2008
7396462 Filtering device Jul. 8, 2008
7344033 Solid-liquid separator Mar. 18, 2008
7297265 Backwash strainer having a cyclonic flow mechanism Nov. 20, 2007
7267236 Water treatment device Sep. 11, 2007
7267763 Water intake screen with circular filter panel Sep. 11, 2007
7258238 Debris filter with a rotating debris extractor Aug. 21, 2007
7258800 Electrocoagulation waste water batch tank treatment system Aug. 21, 2007
7191700 Solid-liquid separator Mar. 20, 2007
7163106 Strainer for cleaning fibrous suspensions Jan. 16, 2007
7143690 Screw compressor for compressing wet matter and a method for compressing and washing Dec. 5, 2006
7141158 Debris separating apparatus for use in downspout below an eaves trough Nov. 28, 2006
7097740 Method and screen for screening at least two pulp mixtures Aug. 29, 2006
7093721 Filter assembly with sealed, magnetically coupled cleaning head actuator Aug. 22, 2006
7086536 Fluid filtering device with scraping element Aug. 8, 2006
7077957 Overflow screening device Jul. 18, 2006
7073433 Auger dewatering system Jul. 11, 2006
7055699 Self-cleaning mechanical filter Jun. 6, 2006
7005077 Shipboard human waste treatment for removing solids Feb. 28, 2006
RE38738 Cylindrical screen, particularly for paper pulp May. 31, 2005
6887372 Portable drilling water filter with self-cleaning system May. 3, 2005
6730219 Filter for liquid products May. 4, 2004
6726022 Screening device and rotor for use in a screening device Apr. 27, 2004
6706199 Method for withdrawing and dewatering slag from a gasification system Mar. 16, 2004
6649068 Filtration of pulp mill liquids Nov. 18, 2003
6634508 Screw press Oct. 21, 2003
6596165 Filtering apparatus Jul. 22, 2003

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