ClassID:

28795

B01D21/2438 - CPC Classification

Classification description:

Separation of suspended solid particles from liquids by sedimentation; Feed or discharge mechanisms for settling tanks; Discharge mechanisms for floating particles provided with scrapers on the liquid surface for removing floating particles

Recent Application in this class:
#1
20250296108
2025-09-25

PALLET COATING WASTE RECOVERY SYSTEM

#2
20250066232
2025-02-27

MULTI-STAGE WASHER INCLUDING A WATER TREATMENT SYSTEM

#3
20240416261
2024-12-19

SHEARING DEVICE, ARRANGEMENT AND USE

#4
20240367073
2024-11-07

SYSTEM FOR CLARIFYING PROCESS WATER IN OIL AND GAS OPERATIONS

#5
20240327251
2024-10-03

PASSIVE GRAVITY FILTER CELL AND METHODS OF USE THEREOF

#6
20240226774
2024-07-11

ROLLER FOR CHAIN AND SCRAPER ASSEMBLY

#7
20240181373
2024-06-06

PLANT AND PROCESS FOR REMOVING SUSPENDED SOLIDS, OILS AND GREASES FROM COOLING WATER IN THE STEEL AND METALLURGICAL SECTOR

#8
20240131451
2024-04-25

ROLLER FOR CHAIN AND SCRAPER ASSEMBLY

#9
20230356115
2023-11-09

WASTE WATER TREATMENT APPARATUS

#10
20230303412
2023-09-28

Surface Skimmer Lifting Device

#11
20230212035
2023-07-06

HEADRACE SYSTEM

#12
20230085131
2023-03-16

PALLET COATING WASTE RECOVERY SYSTEM

#13
20220379240
2022-12-01

Passive gravity filter cell and methods of use thereof

#14
20220363578
2022-11-17

Grey water treatment and recycling system, grey water treatment and recycling process, system control method

#15
20220234913
2022-07-28

Modular installation for treating water by flotation

#16
20220227642
2022-07-21

Surface skimmer lifting device

#17
20210394088
2021-12-23

Wastewater dissolved-air floatation apparatus combined with precipitation tank having sloped plates

#18
20210363745
2021-11-25

Circular parallel plate grit remover

#19
20210331941
2021-10-28

Apparatus, systems, and methods for improving slop water treatment efficiency

#20
20210331091
2021-10-28

Clarifier with submerged effluent launder and launder sweeper system

#21
20210252429
2021-08-19

Floating sludge discharge device for square settling tank

#22
20210220756
2021-07-22

VACUUM WASTE REMOVAL SYSTEM

#23
20200223729
2020-07-16

Bio-DAF system for domestic and industrial wastewater treatment

#24
20200188815
2020-06-18

Animal byproduct recovery system

#25
20200038783
2020-02-06

Filtering skimmers and beaches for use in water separation and treatment

#26
20190233316
2019-08-01

Animal byproduct recovery system

#27
20190152809
2019-05-23

Water treatment skimmer apparatus and system

#28
20180290075
2018-10-11

Vacuum waste removal system

#29
20180193774
2018-07-12

Floating chopper sludge weir

#30
20180104621
2018-04-19

Scum concentration device

#31
20180099890
2018-04-12

Automated wastewater treatment system and methods

#32
20160023131
2016-01-28

METHOD AND APPARATUS FOR REMOVAL OF SURFACE SCUM

#33
20150166386
2015-06-18

Clarifier sludge withdrawal system

#34
20140326662
2014-11-06

Effluent weir system

#35
20140083955
2014-03-27

Apparatus for treating waste water

#36
20130153491
2013-06-20

Sludge scraping apparatus

#37
20120285903
2012-11-15

CIRCULAR CLARIFIER CLEANING SYSTEM

#38
20120111792
2012-05-10

APPARATUS FOR AUTOMATICALLY ADSORBING AND RECYCLING FLOATING OIL ON WATER

#39
20120091073
2012-04-19

Circular clarifier cleaning system

#40
20120012535
2012-01-19

OIL SKIMMER CONVEYOR

#41
20110290737
2011-12-01

Self contained dissolved air flotation system

#42
20100314302
2010-12-16

Self contained dissolved air flotation system

#43
20100230338
2010-09-16

Floating skimmer and filter apparatus

#44
20100078370
2010-04-01

Floating baffle panel and filter apparatus

#45
20100032363
2010-02-11

Floating skimmer apparatus with up-flow filter

#46
20090145834
2009-06-11

Apparatus for removing buoyant pollutants

#47
20090145824
2009-06-11

Apparatus for removing buoyant pollutants from polluted coolant

#48
20070138086
2007-06-21

Scraper

#49
20070045182
2007-03-01

Fats, oil and grease interceptor

#50
20070000840
2007-01-04

Self contained dissolved air flotation system

#51
20060162195
2006-07-27

System and method of dewatering dredge spoils using sloping drain barge