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Class Information
Number: 210/525
Name: Liquid purification or separation > Gravitational separator > Mechanical constituent mover > Scum sediment removal
Description: Apparatus which removes sediment from the tank bottom and scum at the surface.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8397921 Scum removing apparatus Mar. 19, 2013
8377221 Apparatus and method for the safe and efficient cleaning and maintenance of a vault having submerged equipment Feb. 19, 2013
8225943 Circular clarifier cleaning system Jul. 24, 2012
8182700 Method and exhaust arrangement in the removal of surface scum May. 22, 2012
8132581 Method and system for washing a sedimentation device in a water treatment system using ultrasonic Mar. 13, 2012
7992667 Oil cooling and filtering system, kit and apparatus Aug. 9, 2011
7828960 F.O.G. separator control Nov. 9, 2010
7824547 Filter arrangement Nov. 2, 2010
7727176 Machine for extracorporeal blood treatment coupled to a support element Jun. 1, 2010
7572370 Installation for the mechanical purification of liquids, and method for separating suspended matter Aug. 11, 2009
7547396 Thickener/clarifier feedwell assembly with froth dissipation Jun. 16, 2009
7449121 Method and arrangement for removal of surface scum Nov. 11, 2008
7364032 Chip discharge system Apr. 29, 2008
7290669 Upflow bioreactor having a septum and an auger and drive assembly Nov. 6, 2007
7258788 Circular clarifier apparatus and method Aug. 21, 2007
7234600 Sludge scraping and collecting apparatus Jun. 26, 2007
7179372 Methods and apparatuses for filtering water Feb. 20, 2007
7153419 Liquid treating device Dec. 26, 2006
6875351 Methods and apparatus for oil demulsification and separation of oil and suspended solids from produced water Apr. 5, 2005
6868974 Sedimentation filtration installation Mar. 22, 2005
6855262 Method and apparatus for clarifying and/or thickening a slurry Feb. 15, 2005
6773593 Continuous flow reactor wastewater treatment plant Aug. 10, 2004
6712222 Integrated scum baffle and launder cover for use in a clarifier tank Mar. 30, 2004
6685830 Process and device for separation of absorbent/floating material from product mixes by means of float/sink separation Feb. 3, 2004
6676833 Apparatus for removing grit and grease from water Jan. 13, 2004
6641724 Tangential separating device for solid matter Nov. 4, 2003
6551516 Methods for removing grit and grease from water Apr. 22, 2003
6500232 Interfacial crud removal system for solvent extraction and method for solvent extraction Dec. 31, 2002
6497249 Telescopic hose and related drive systems Dec. 24, 2002
6491830 Kitchen grease removal system Dec. 10, 2002
6454104 Clarifier with influent well scum removal Sep. 24, 2002
6364123 Device for recuperating floating materials in a sedimentation tank Apr. 2, 2002
6305555 Wear shoe for sludge collector Oct. 23, 2001
6279752 Wide rectangular clarifiers Aug. 28, 2001
6274044 Clarifier with influent well scum removal Aug. 14, 2001
6260716 Scum sweeper for surface floating matters in a clarifying tank Jul. 17, 2001
6238559 Device for separating floating layers in a liquid basin May. 29, 2001
6234323 Header for a sludge removal system May. 22, 2001
6199704 Sludge collecting apparatus Mar. 13, 2001
6189549 Waste material skimming device Feb. 20, 2001
6174434 Three zone dissolved air floatation clarifier with fixed lamellae and improved paddle-and-ramp sludge removal system Jan. 16, 2001
6126019 Sewage collector flight Oct. 3, 2000
6110386 Method for conditioning metal cutting fluids Aug. 29, 2000
6096198 Apparatus for conditioning metal cutting fluids Aug. 1, 2000
6073779 Sludge vacuum system Jun. 13, 2000
6068134 Clarifier with influent well scum removal May. 30, 2000
5992644 Plastic flight type water treatment system for rectangular clarifiers Nov. 30, 1999
5948277 Method for removing floating matter and a removing device Sep. 7, 1999
5942116 Anaerobic sludge digester Aug. 24, 1999
5914049 Method and apparatus for helical flow in a header conduit Jun. 22, 1999

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