ClassID:

143993

F04D13/021 - CPC Classification

Classification description:

Pumping installations or systems; Units comprising pumps and their driving means containing a coupling

Sub-classes:
Recent Application in this class:
#1
20260116477
2026-04-30

SYSTEM FOR IMPROVING VEHICLE EFFICIENCY

#2
20260022706
2026-01-22

IMPELLER BEARINGS FOR PUMPS

#3
20250207528
2025-06-26

Hybrid Motor for Fluid Pump

#4
20250180026
2025-06-05

Valve/Pump Unit

#5
20250136430
2025-05-01

ELECTRIC OIL PUMP

#6
20250101994
2025-03-27

SYSTEM AND METHOD FOR VIBRATION CONTROL

#7
20250020127
2025-01-16

NON-OCCLUDING INTRAVASCULAR BLOOD PUMP PROVIDING REDUCED HEMOLYSIS

#8
20240384729
2024-11-21

Higher Work Output Centrifugal Pump Stage

#9
20240309882
2024-09-19

IMPELLER BEARINGS FOR PUMPS

#10
20240209872
2024-06-27

DRILL POWERED LIQUID PUMP

#11
20240141903
2024-05-02

Downhole transmission with wellbore fluid flow passage

#12
20230407872
2023-12-21

SYSTEM FOR OPERATING OIL PUMP FOR MOBILITY VEHICLE

#13
20230392605
2023-12-07

Impeller bearings for pumps

#14
20230391409
2023-12-07

SYSTEM FOR IMPROVING VEHICLE EFFICIENCY

#15
20230383755
2023-11-30

Coupling unit with connecting pieces

#16
20230383632
2023-11-30

ONE WAY CLUTCH TRAIN FOR ARRESTING BACKSPIN

#17
20230358247
2023-11-09

INTEGRATED BEARING SYSTEMS FOR DYNAMICALLY SUPPORTING SHAFTS IN PUMP SYSTEMS

#18
20230349274
2023-11-02

Ring latch locking shaft coupling for bi-directional loading

#19
20230323882
2023-10-12

VACUUM PRIMING SYSTEM FOR CLOSE-COUPLED PUMPS

#20
20230184253
2023-06-15

Electric submersible pump (ESP) assembly with load absorbing coupling

#21
20230132118
2023-04-27

Aircraft fuel system with clutched augmentor pump

#22
20230075831
2023-03-09

SPRING SPACER COUPLING

#23
20220369508
2022-11-17

Pump-driven coolant filling device and methods

#24
20220316490
2022-10-06

Pump shaft for a multi-stage pump

#25
20220228591
2022-07-21

Coolant pump for a vehicle

#26
20220226634
2022-07-21

Non-occluding intra vascular blood pump providing reduced hemolysis

#27
20220213833
2022-07-07

Hybrid pump apparatus

#28
20220154733
2022-05-19

Permanent magnet direct-drive slurry pump based on gas film drag reduction

#29
20210324867
2021-10-21

Shear pin and drive shaft spring brake in electrical submersible pump

#30
20210310493
2021-10-07

Particle guard ring for mixed flow pump

#31
20210293228
2021-09-23

Power generating unit

#32
20210285450
2021-09-16

TRUCK-MOUNTED CONCRETE PUMP

#33
20210269132
2021-09-02

FLUID MACHINE WITH IMPELLER DRIVEN VIA ITS RIM

#34
20210262471
2021-08-26

PTO DRIVEN ARTICULATED TRAILER TURBINE PUMP

#35
20210148380
2021-05-20

Electric submersible pump (ESP) gas slug mitigation system

#36
20210123455
2021-04-29

High-powered sanitary pump

#37
20210088052
2021-03-25

Gas seal column pump

#38
20210062813
2021-03-04

Aquacycle pump and method of use

#39
20200408215
2020-12-31

FLUID PUMPING SYSTEM WITH A CONTINUOUSLY VARIABLE TRANSMISSION

#40
20200400153
2020-12-24

Thermal module

#41
20200376180
2020-12-03

Pump to motor connection system

#42
20200291945
2020-09-17

Lubricant pump with automatically coupling pump unit and method for coupling a pump unit to a lubricant pump

#43
20200240416
2020-07-30

Bailer-type long-shaft pump and application thereof

#44
20200224664
2020-07-16

Pump device, especially for mobile means of transport

#45
20200222734
2020-07-16

Pump guard and methods of use thereof

#46
20200191041
2020-06-18

PUMP ASSEMBLY WITH ELECTRIC DRIVE AND WITH MECHANICAL DRIVE COMPRISING TRANSMISSION MEANS

#47
20200063541
2020-02-27

One-way clutch drive shaft coupling in submersible well pump assembly

#48
20190353168
2019-11-21

ELECTRIC PUMP

#49
20190234417
2019-08-01

Water pump

#50
20190233124
2019-08-01

Cabin blower system

#51
20190226307
2019-07-25

Methods and apparatus for providing ESP stage sequential engagement

#52
20190203721
2019-07-04

FAN

#53
20190195233
2019-06-27

Spring spacer coupling

#54
20190186497
2019-06-20

Coolant pump and cooling system provided with the same for vehicle

#55
20190093670
2019-03-28

High flow low pressure suction device

#56
20190093648
2019-03-28

VERSATILE HOUSING OF COMPRESSOR MOTORS

#57
20190046703
2019-02-14

Pump to motor connection system

#58
20180372105
2018-12-27

Bracketless magnetic pump

#59
20180347580
2018-12-06

Systems and methods for generating clean energy through hydrodynamic closed cycle

#60
20180298907
2018-10-18

Reactor coolant pump set

#61
20180283384
2018-10-04

Wireline-deployed ESP with self-supporting cable

#62
20180274560
2018-09-27

De-blocking device for a hydraulic pump

#63
20180245599
2018-08-30

Compressor device

#64
20180195514
2018-07-12

Particle guard ring for mixed flow pump

#65
20180051707
2018-02-22

Method of manufacturing supercharger

#66
20180045212
2018-02-15

Systems and methods for generating clean energy through hydrodynamic closed cycle

#67
20180001123
2018-01-04

Fluid system with a continuously variable transmission

#68
20170370274
2017-12-28

COOLANT PUMP WITH INTEGRATED CLOSED-LOOP CONTROL

#69
20170306731
2017-10-26

Methods and apparatus for providing ESP stage sequential engagement

#70
20170248143
2017-08-31

Low profile pump with the ability to be mounted in various configurations

#71
20170204862
2017-07-20

RISERLESS RECIRCULATION/TRANSFER PUMP AND MIXER/PRE-MELTER FOR MOLTEN METAL APPLICATIONS

#72
20170129124
2017-05-11

Portable pump systems, chainsaw accessories, and chainsaw pump accessory kits

#73
20170114792
2017-04-27

WATER PUMP AND ASSEMBLY METHOD FOR WATER PUMP

#74
20170087288
2017-03-30

Non-occluding intravascular blood pump providing reduced hemolysis

#75
20170070117
2017-03-09

Mechanical coupling group

#76
20170037853
2017-02-09

Pump assembly for recirculating a cooling fluid of a heat engine

#77
20170009773
2017-01-12

Two-Stage Centrifugal Pump

#78
20160305308
2016-10-20

VARIABLE PUMP FOR AN INTERNAL COMBUSTION ENGINE

#79
20160273540
2016-09-22

Centrifugal cooling pump for a nuclear reactor having a thermal barrier and a vaned wheel flywheel

#80
20160108922
2016-04-21

Multi-stage centrifugal pump

#81
20160102668
2016-04-14

Vertical pump having motor support with truss elements

#82
20160010647
2016-01-14

Bracketless magnetic pump

#83
20150369247
2015-12-24

RADIAL- ODER DIAGONALVENTILATOR

#84
20150204334
2015-07-23

Pumping system with housing and user interface

#85
20150184675
2015-07-02

Threaded connection having different upper and lower threads for submersible well pump modules

#86
20150129388
2015-05-14

COMBINED FRICTION DISC/LIQUID FRICTION COUPLING

#87
20150107245
2015-04-23

Coupling of a turbopump for molten salts

#88
20150093266
2015-04-02

Horizontal pumping system with bent plate frame

#89
20150044074
2015-02-12

Fluid pump comprising a positive-locking clutch for a motor vehicle

#90
20150037177
2015-02-05

HYBRID ELECTROMECHANICAL COOLANT PUMP WITH BASE FLOW AND PEAK FLOW

#91
20150030470
2015-01-29

Fixed suction chamber with rear and front seal removal

#92
20150023785
2015-01-22

Coupling for directly driven compressor

#93
20150016993
2015-01-15

DRILL PUMP WITH FIXED POSITION BUSHING

#94
20140377090
2014-12-25

Switchable mechanical coolant pump

#95
20140341752
2014-11-20

Low profile pump with the ability to be mounted in various configurations

#96
20140328706
2014-11-06

Mainline electric oil pump assembly and method for assembling same

#97
20140328703
2014-11-06

Internal combustion engine provided with a cooling pump that can be mechanically disconnected

#98
20140322041
2014-10-30

Friction clutch assemblies

#99
20140271281
2014-09-18

Bracketless magnetic pump

#100
20140205477
2014-07-24

Centrifugal pump, a shaft therefor and a sleeve for coupling the shaft of a centrifugal pump to a shaft of a drive motor

#101
20140045599
2014-02-13

Mechanical protection device

#102
20140023527
2014-01-23

Multi-mode cooling pump

#103
20140023526
2014-01-23

HYBRID COOLANT PUMP

#104
20130309104
2013-11-21

Pump assembly with multiple gear ratios

#105
20130306005
2013-11-21

Control methods for dual mode cooling pump

#106
20130129545
2013-05-23

BLOWER

#107
20120204818
2012-08-16

Coolant pump which exhibits an adjustable delivery volume

#108
20120163959
2012-06-28

Riserless recirculation/transfer pump and mixer/pre-melter for molten metal applications

#109
20120107121
2012-05-03

Switchable coolant pump

#110
20120082572
2012-04-05

Fluid pump

#111
20120027567
2012-02-02

Mechanically-coupled turbomachinery configurations and cooling methods for hermetically-sealed high-temperature operation

#112
20110286863
2011-11-24

Auxiliary system for a drive device

#113
20110286858
2011-11-24

Water pump system and method

#114
20110220771
2011-09-15

Support post clamps for molten metal pumps

#115
20110210232
2011-09-01

Support posts for molten metal pumps

#116
20110123365
2011-05-26

COOLANT PUMP

#117
20100284830
2010-11-11

Surface pump assembly having a thrust chamber with a telescoping shaft

#118
20100196151
2010-08-05

PROTECTIVE COATINGS FOR MOLTEN METAL DEVICES

#119
20090246039
2009-10-01

CARRIER ASSEMBLY FOR A PUMP

#120
20090212076
2009-08-27

Container system

#121
20090140013
2009-06-04

PROTECTIVE COATINGS FOR MOLTEN METAL DEVICES

#122
20090062020
2009-03-05

Multi-ribbed keyless coupling

#123
20090056123
2009-03-05

Friction lock design for adjustable pump head to allow for 360° rotation

#124
20090055027
2009-02-26

Water pump disconnect clutch

#125
20080317595
2008-12-25

Fluid pump

#126
20080219864
2008-09-11

Centrifugal drainage pump with shock absorbing coupling arrangment

#127
20080206076
2008-08-28

Vertical Pump Arrangement

#128
20080185925
2008-08-07

System and method to control temperature of an alternator and/or an engine in a vehicle

#129
20080056912
2008-03-06

Pump system and method using planetary gear assembly

#130
20080044279
2008-02-21

Adaptor Frame

#131
20080031743
2008-02-07

Frame mounted pump

#132
20080020887
2008-01-24

Drive Pulleys

#133
20080017468
2008-01-24

DRIVE MEMBER FOR WATER PUMP

#134
20070296291
2007-12-27

Submersible electric motor terminated for auxiliary tools

#135
20070286736
2007-12-13

Fire pump for firefighting vehicle

#136
20070243085
2007-10-18

Magnetic drive pump

#137
20070031269
2007-02-08

Pump drive

#138
20070003406
2007-01-04

Pump

#139
20060266532
2006-11-30

Multi-drive converter unit for driving multiple fire suppression accessories

#140
20060245934
2006-11-02

System and method for controlling a fluid pump

#141
20060222537
2006-10-05

Shaft coupling

#142
20060222533
2006-10-05

Portable blood pumping system

#143
20060222529
2006-10-05

Tandem motors

#144
20060216164
2006-09-28

Impeller apparatus for water pump and water pump

#145
20060192440
2006-08-31

Synchronous motor, particularly for an aquarium pump

#146
20060024174
2006-02-02

Pump

#147
20050255951
2005-11-17

Cooled pump pulley

#148
20050199384
2005-09-15

Shaft locking couplings for submersible pump assemblies

#149
20050196296
2005-09-08

Electric motor-driven pump for washing machines and the like

#150
20050188927
2005-09-01

Coolant pumps with coupling means

#151
20050147510
2005-07-07

Device for transmitting motion between the rotor of a synchronous permanent-magnet motor and the working part, having an increased free rotation angle

#152
20050140221
2005-06-30

Coupling device between a rotor of permanent-magnet synchronous motor and a working part

#153
20050087343
2005-04-28

Motor protector

#154
20050084401
2005-04-21

Quick-release pump module

#155
20050058555
2005-03-17

VARIABLE INPUT SPEED TO WATER PUMP

#156
20050053499
2005-03-10

Support post system for molten metal pump

#157
20050023911
2005-02-03

Device for transmitting motion between the rotor of a synchronous permanent-magnet motor and a working part

#158
17322596
2021-11-09

Pump-driven coolant filling device and methods

#159
14018854
2016-09-06

Liquid sealed pump