B01D21/18 - CPC Classification Index

ClassID:

28783 ⎘

B01D21/18 - CPC Classification

Classification description:

Separation of suspended solid particles from liquids by sedimentation Construction of the scrapers or the driving mechanisms for settling tanks

Sub-classes:

B01D21/183 » {with multiple scraping mechanisms} 6
B01D21/186 » {with two or more scrapers fixed at different heights on a central rotating shaft} 5
B01D21/20 » Driving mechanisms 32
B01D21/22 » Safety mechanisms 3

Recent Application in this class:

20240416261

2024-12-19

SHEARING DEVICE, ARRANGEMENT AND USE

20210299593

2021-09-30

Clarifier rake configuration and system and method including the same for bottom ash handling related to flue gas desulfurization

20210220756

2021-07-22

VACUUM WASTE REMOVAL SYSTEM

20210106932

2021-04-15

OILS FREQUENCY CLEANER

20210046405

2021-02-18

Clarifier rake configuration and system and method including the same for bottom ash handling related to flue gas desulfurization

20200298145

2020-09-24

Clog-resistant inlet for a conduit of a water treatment system

20200246725

2020-08-06

Sludge treatment apparatus

20200215461

2020-07-09

Sludge collector

20200147619

2020-05-14

Alkylated triphenyl phosphorothionates as selective metal sulphide collectors

#10

20200101402

2020-04-02

Clog-resistant inlet for a conduit of a water treatment system

#11

20190308828

2019-10-10

Sludge handling system with rotating discharge device

#12

20180290075

2018-10-11

Vacuum waste removal system

#13

20170333813

2017-11-23

Rapid sludge removal clarifier

#14

20170252675

2017-09-07

Sludge extraction apparatus and method

#15

20150265946

2015-09-24

Fluid-forwarding sludge-discharge device for settlement basin

#16

20150192294

2015-07-09

Methods and Systems For Dewatering Bottom Ash Using A Remote Submerged Scraper Conveyor

#17

20150065281

2015-03-05

Chain structure

#18

20140197117

2014-07-17

System and method for sludge removal in a circular settling tank

#19

20130153491

2013-06-20

Sludge scraping apparatus

#20

20130118618

2013-05-16

Apparatus and method for removing materials from a material collection container

#21

20130118616

2013-05-16

Apparatus and method for removing materials from a material collection container

#22

20130026009

2013-01-31

METHOD AND APPARATUS FOR ENHANCED SETTLING AND COLLECTION OF SETTLED MATERIAL

#23

20120318733

2012-12-20

Apparatus for the transport of sludge

#24

20120308349

2012-12-06

Sewage silo with centripetal action discharge arm

#25

20110278241

2011-11-17

METHOD AND APPARATUS FOR ENHANCED SETTLING AND COLLECTION OF SETTLED MATERIAL

#26

20110198303

2011-08-18

Method and apparatus for disturbing networked pulp

#27

20110180484

2011-07-28

SEPARATION DEVICE WITH DUAL DRIVES AND A METHOD OF REDUCING DONUTTING IN A SEPARATION DEVICE

#28

20110163041

2011-07-07

METHOD FOR CONTROLLING THE DISTURBANCE OF NETWORKED PULP

#29

20110005998

2011-01-13

Methods of and sludge collector with adjacent opposed oppositely-moving blades for moving sludge in a basin

#30

20100314336

2010-12-16

Method and apparatus for enhanced settling and collection of settled material

#31

20100102006

2010-04-29

Ballast flocculation and sedimentation water treatment system with simplified sludge recirculation, and process therefor

#32

20080251435

2008-10-16

Contaminated fluid recovery apparatus

#33

20070138086

2007-06-21

Scraper

#34

20070107412

2007-05-17

Investment cast, stainless steel chain link and casting process therefor

#35

20060283168

2006-12-21

Investment cast, stainless steel chain link and casting process therefor

#36

20060124539

2006-06-15

Sludge scraping and collecting apparatus

#37

20060108281

2006-05-25

Auxiliary scraper arrangement

#38

20050121402

2005-06-09

Pulp stabilisation apparatus for a thickener