Patents-Review.com
ClassID:

144237 ⎘

F04D29/2266 - CPC Classification

Classification description:

Details, component parts, or accessories; Rotors specially for centrifugal pumps with special measures for sealing or thrust balance

Recent Application in this class:
#1
20260146622
2026-05-28

FLUID PUMP INCLUDING AN IMPELLER

 #2
20260117775
2026-04-30

Water Pump

 #3
20260085693
2026-03-26

Water Pump

 #4
20250354521
2025-11-20

GAS TURBINE ENGINE DEFINING A ROTOR CAVITY

 #5
20240418130
2024-12-19

GAS TURBINE ENGINE DEFINING A ROTOR CAVITY

 #6
20240229816
2024-07-11

LIQUID RING ROTOR

 #7
20240133394
2024-04-25

LIQUID RING ROTOR

 #8
20240125217
2024-04-18

CRUDE OIL EXTRACTION PUMP

 #9
20230332611
2023-10-19

CENTRIUGAL PUMP

 #10
20230279867
2023-09-07

Aircraft engine fuel pump

 #11
20230044147
2023-02-09

Variable gap between impeller rotor and static structure

 #12
20220268293
2022-08-25

Rotary Parts For A Slurry Pump

 #13
20220186740
2022-06-16

E-assist turbocharger with bleed fluid system connecting compressor section to web ring of turbine section for thrust load suppression

 #14
20220170477
2022-06-02

PUMP IMPELLER AND RADIAL PUMP COMPRISING THE IMPELLER

 #15
20220003237
2022-01-06

Rotor assembly

 #16
20210324869
2021-10-21

High energy density turbomachines

 #17
20210122653
2021-04-29

Modular water purification system for nuclear power plants

 #18
20210079922
2021-03-18

Centrifugal pump and a pump housing

 #19
20200408220
2020-12-31

Impeller with external blades

 #20
20200345909
2020-11-05

Rotary Blood Pump

 #21
20200276403
2020-09-03

ROTORS FOR USE IN CAUSTIC ENVIRONMENTS

 #22
20200109717
2020-04-09

Pump systems with variable diameter impeller devices

 #23
20200011340
2020-01-09

Thrust bearing system and method for operating the same

 #24
20200003215
2020-01-02

Pump

 #25
20190353178
2019-11-21

Oil pump of vehicle having inner ring

 #26
20190331125
2019-10-31

Pump

 #27
20190226490
2019-07-25

Pump systems with variable diameter impeller devices

 #28
20190219068
2019-07-18

Multi-stage pump with enhanced thrust balancing features

 #29
20190209754
2019-07-11

Rotary blood pump

 #30
20190162199
2019-05-30

Impeller

 #31
20190162189
2019-05-30

Pump and impeller with auxiliary blades on the underside of the impeller and a permanent magnet rotor

 #32
20190128275
2019-05-02

Wear ring for use in a pump

 #33
20190063450
2019-02-28

CENTRIFUGAL PUMP WITH BALANCING DEVICE AND A METHOD OF BALANCING AXIAL FORCES OF THE CENTRIFUGAL PUMP

 #34
20190055956
2019-02-21

Centrifugal turbo machinery

 #35
20190055946
2019-02-21

Cooling unit

 #36
20180340545
2018-11-29

Thrust bearing system and method for operating the same

 #37
20180306200
2018-10-25

Wear ring for use in a pump

 #38
20180291928
2018-10-11

Methods and devices for reducing circumferential pressure imbalances in an impeller side cavity of rotary machines

 #39
20180266430
2018-09-20

Pump for circulating water

 #40
20180231015
2018-08-16

Sealed rotor assembly for a rotary fluid device

 #41
20180172017
2018-06-21

Rotary parts for a slurry pump

 #42
20180163741
2018-06-14

Impeller for a Centrifugal Pump, and Centrifugal Pump

 #43
20180128281
2018-05-10

Impeller assembly for centrifugal pumps

 #44
20180106264
2018-04-19

Waste water pump

 #45
20180045213
2018-02-15

IMPELLER FOR CENTRIFUGAL PUMPS

 #46
20170361001
2017-12-21

Centrifugal pumps for medical uses

 #47
20170343006
2017-11-30

Electric centrifugal pump with containment shell grooves

 #48
20170260992
2017-09-14

Impeller assembly for centrifugal pumps

 #49
20170241428
2017-08-24

Seal assembly for abrasion resistant bearing of centrifugal pump

 #50
20170241424
2017-08-24

Apertures spaced around impeller bottom shroud of centrifugal pump

 #51
20170218970
2017-08-03

A METHOD OF PUMPING A LIQUID MEDIUM, A CENTRIFUGAL PUMP AND AN IMPELLER THEREFOR

 #52
20170211582
2017-07-27

Thrust washer and diffuser for use in a downhole electrical submersible pump

 #53
20170184116
2017-06-29

Impeller and pump using the impeller

 #54
20170184115
2017-06-29

Opposed impeller wear ring undercut to offset generated axial thrust in multi-stage pump

 #55
20170138367
2017-05-18

Pump with front deflector vanes, wear plate, and impeller with pump-out vanes

 #56
20170107996
2017-04-20

Pump for conveying a highly viscous fluid

 #57
20170089359
2017-03-30

Impeller structure with improved rotation stability

 #58
20170089354
2017-03-30

Electric pump

 #59
20170067473
2017-03-09

Centrifugal pump impellor with novel balancing holes that improve pump efficiency

 #60
20170043076
2017-02-16

Rotary blood pump

 #61
20170037856
2017-02-09

Integral pump pressure relief valve

 #62
20160363124
2016-12-15

Vertical self-priming pump

 #63
20160333891
2016-11-17

Water pump

 #64
20160201683
2016-07-14

Multistage radial compressor baffle

 #65
20160186769
2016-06-30

Bushing seal for use in a pump

 #66
20160138605
2016-05-19

Debris removing impeller back vane

 #67
20160138604
2016-05-19

Rotor for a centrifugal flow machine and a centrifugal flow machine

 #68
20150267711
2015-09-24

Centrifugal pump impellor with novel balancing holes that improve pump efficiency

 #69
20150240833
2015-08-27

Centrifugal compressor impeller cooling

 #70
20150167467
2015-06-18

Compressor or turbine with back-disk seal and vent

 #71
20150086342
2015-03-26

Centrifugal pump for delivering liquids in a motor vehicle

 #72
20150016981
2015-01-15

Centrifugal fluid machine

 #73
20140286761
2014-09-25

CENTRIFUGAL COMPRESSOR

 #74
20130149101
2013-06-13

Reduced leakage balance piston seal

 #75
20130039754
2013-02-14

Vertical double-suction pump having beneficial axial thrust

 #76
20120148384
2012-06-14

Pump having an axial balancing device

 #77
20110058928
2011-03-10

Centrifugal pump with thrust balance holes in diffuser

 #78
20110002794
2011-01-06

Centrifugal pump and method for compensating the axial thrust in a centrifugal pump

 #79
20100247313
2010-09-30

Centrifugal impeller with controlled force balance

 #80
20100202870
2010-08-12

Method and apparatus for lubricating a thrust bearing for a rotating machine using pumpage

 #81
20100028178
2010-02-04

Rotor stability of a rotary pump

 #82
20090226317
2009-09-10

Impeller for a centrifugal pump

 #83
20080213093
2008-09-04

Impeller for pumps

 #84
20080142340
2008-06-19

Bulk material pump feeder with reduced disk jamming

 #85
20080080965
2008-04-03

Pump comprising an axial balancing system

 #86
20070231135
2007-10-04

Rotary Blood Pump

 #87
20070196211
2007-08-23

PUMP WITH IMPELLER, PARTICULARLY FOR WASHING MACHINES AND SIMILAR HOUSEHOLD APPLIANCES

 #88
20070140834
2007-06-21

Centrifugal turbo machine with axial thrust control member

 #89
20060263200
2006-11-23

Centrifugal pump and an impeller thereof

 #90
20060157322
2006-07-20

Bulk material pump feeder with reduced disk jamming

 #91
20060127211
2006-06-15

Pump impeller

 #92
20060083643
2006-04-20

Pump

 #93
20060083642
2006-04-20

Rotor stability of a rotary pump

 #94
20050175455
2005-08-11

Centrifugal pump

 #95
19118195
2026-05-26

Fluid pump including an impeller

 #96
19034779
2026-02-24

Extended wheel tip and back-disk cavity