ClassID:

142819

F04B23/021 - CPC Classification

Classification description:

Pumping installations or systems having reservoirs the pump being immersed in the reservoir

Sub-classes:
Recent Application in this class:
#1
20250283456
2025-09-11

SECONDARY SUMP PUMP SHELF SYSTEM

#2
20250136430
2025-05-01

ELECTRIC OIL PUMP

#3
20240410359
2024-12-12

SYSTEMS AND METHODS FOR SIMULATING WATER INTRUSION IN A STRUCTURE AND TESTING SUMP PUMP PERFORMANCE

#4
20240384710
2024-11-21

INSTALLATION FOR PUMPING CRYOGENIC FLUID AND FILLING STATION COMPRISING SUCH AN INSTALLATION

#5
20240228130
2024-07-11

SUMP PUMP CROCK

#6
20240218863
2024-07-04

AUTONOMOUS TENNIS ASSISTANT SYSTEMS

#7
20240051367
2024-02-15

PRE-PRESSURIZED SYSTEM WITH REVERSE ROTATION OF PUMP FOR VALVE ACTUATION

#8
20240044688
2024-02-08

SUMP PUMP FAILURE DEVICE

#9
20230381688
2023-11-30

SEDIMENT CAPTURE SYPHON APPARATUS

#10
20230366390
2023-11-16

DUPLEX CONTROL OF REDUNDANT PASSIVELY-ACTUATED ELECTRONIC DEVICES

#11
20230332585
2023-10-19

CRYOGENIC PUMP

#12
20230204043
2023-06-29

Sealing member and submerged pump system

#13
20230204036
2023-06-29

SEALING MEMBER AND SUBMERGED PUMP SYSTEM

#14
20230175512
2023-06-08

METHOD FOR DETERMINING A PUMPED FLOW FROM A PUMP AND A FLOWMETER

#15
20230071844
2023-03-09

Compression apparatus and filling station comprising such an apparatus

#16
20230040307
2023-02-09

Submersible hydraulic power units with interchangeable manifolds

#17
20230019795
2023-01-19

SUMP PUMP SYSTEM, INCLUDING SUMP PUMP MONITOR AND APPLICATION

#18
20220260064
2022-08-18

Hydraulic Power Units with Submerged Motors

#19
20220235760
2022-07-28

High-pressure pre-compression pump

#20
20220112891
2022-04-14

Sewage basin pump control support

#21
20220090610
2022-03-24

Fuel system having a valve upstream of a jet pump

#22
20220082096
2022-03-17

Sump pump failure device

#23
20220034313
2022-02-03

Modular pump and pumping system including same

#24
20210340740
2021-11-04

PUMP CONTROL SYSTEM HAVING INTERFACE FOR REMOTE MONITORING AND CONTROL

#25
20210270119
2021-09-02

Electric submersible pump (ESP) with gas handling shroud inlet

#26
20210180577
2021-06-17

Hydraulic power units with submerged motors

#27
20210163189
2021-06-03

Sump pump crock

#28
20210115649
2021-04-22

Hydraulic arrangement

#29
20210025376
2021-01-28

SUBMERSIBLE PUMP MOTOR THAT CAN WORK WITH COMPRESSED AIR

#30
20200329669
2020-10-22

Watering tank circulating assembly

#31
20200277972
2020-09-03

Prime mover system and methods utilizing balanced flow within bi-directional power units

#32
20200158142
2020-05-21

Multiport pumps with multi-functional flow paths

#33
20200149682
2020-05-14

Cryogenic tank assembly with a pump drive unit disposed within fluid storage vessel

#34
20200132068
2020-04-30

Sump pump system and control methodology therefor

#35
20200072401
2020-03-05

Lift out disconnect

#36
20200049150
2020-02-13

Heat insulating vessel for low temperature liquefied gas pump

#37
20200003217
2020-01-02

PUMP STATUS DISPLAY MODULE, PUMP SYSTEM USING SAME AND METHODS RELATING THERETO

#38
20190368478
2019-12-05

Chemical changeover system having a reservoir tank having a submerged pump in fluid communication with a bleed path and a recirculation path to maintain a liquid level in the reservoir tank

#39
20190286174
2019-09-19

Closed circulation system for production of a polymer solution and improving operating efficiency of a gas drainage pump used in a coal mine

#40
20190257303
2019-08-22

Collapsing beam pump

#41
20190242374
2019-08-08

Sump pump control

#42
20190239476
2019-08-08

Vortex fountain

#43
20190195215
2019-06-27

Sewage basin pump control support

#44
20190162206
2019-05-30

Prime mover system and methods utilizing balanced flow within bi-directional power units

#45
20190145392
2019-05-16

Cryogenic pump

#46
20190137022
2019-05-09

Lift out rail system

#47
20190120234
2019-04-25

Water pumping control device and system

#48
20190101427
2019-04-04

SUMP PUMP MONITOR

#49
20190098866
2019-04-04

PET FOUNTAIN

#50
20190085840
2019-03-21

Autonomous submersible pump

#51
20190067947
2019-02-28

Methods and systems for controlling supply of power generated by a weather dependent power generator

#52
20190032668
2019-01-31

Fluid Delivery Apparatuses and Methods of Use

#53
20190010909
2019-01-10

Fuel pump solenoid assembly method

#54
20190003611
2019-01-03

Fuel pump solenoid having hydraulic damping

#55
20190003605
2019-01-03

Pump valve configuration and assembly method

#56
20190003603
2019-01-03

Asymmetric spring valve disk

#57
20190003598
2019-01-03

Combined inlet and outlet check valve seat

#58
20190003474
2019-01-03

Fuel sending unit assembly and operation

#59
20180346316
2018-12-06

Multiple pump system

#60
20180305224
2018-10-25

METHOD AND APPARATUS FOR TREATING POTABLE WATER IN MUNICIPAL AND SIMILAR WATER TANKS

#61
20180274526
2018-09-27

Electrohydraulic compact assembly

#62
20180223834
2018-08-09

FLUID FILTER FOR MINING MACHINE

#63
20180209426
2018-07-26

Sump pump remote monitoring systems and methods

#64
20180209406
2018-07-26

Submersible pump assembly

#65
20180195500
2018-07-12

Cryogenic fluid pump

#66
20180156083
2018-06-07

Assembling apparatus for oil pump

#67
20180135622
2018-05-17

Piston cartridge for piston pump

#68
20180112826
2018-04-26

Cryogenic fluid system and method of operating same

#69
20180112629
2018-04-26

Machine system having submersible pumping system, and method

#70
20180066651
2018-03-08

Pump station monitoring system and method

#71
20180058218
2018-03-01

Safety Hydraulic Dump for a Cryogenic Pump

#72
20170321669
2017-11-09

Submersible water circulation system for enclosed tanks

#73
20170260976
2017-09-14

Method of operating a pressurized drainage system for wastewater

#74
20170254333
2017-09-07

MULTI-PUMP SYSTEM WITH SYSTEM CHECK

#75
20170227000
2017-08-10

Trap for pump testing and monitoring systems

#76
20170145666
2017-05-25

Pump control system having temperature detection and interface for remote monitoring and control

#77
20170138519
2017-05-18

MULTI-PLATE QUICK DISCONNECT FITTING

#78
20170075363
2017-03-16

Liquid level sensing system

#79
20170058886
2017-03-02

Test and monitoring system for a pump installation

#80
20170037836
2017-02-09

Cryogenic pump for liquefied natural gas

#81
20170030360
2017-02-02

Water pumping system for rooftop applications and the like

#82
20160348656
2016-12-01

SUPPORT SYSTEM FOR A PUMP

#83
20160312591
2016-10-27

Flexible hose for bellows pressure equalizer of electrical submersible well pump

#84
20160305294
2016-10-20

Scavenge pump oil level control system and method

#85
20160281697
2016-09-29

Fuel system having serially arranged in-tank pumps

#86
20160229681
2016-08-11

Multiple pump system

#87
20160222961
2016-08-04

Barrel assembly for a fluid pump having separate plunger bore and outlet passage

#88
20160000037
2016-01-07

Self-locating cover for pet fountain assembly

#89
20150322951
2015-11-12

Sump pump remote monitoring systems and methods

#90
20150322941
2015-11-12

Structure for preventing submersion of device

#91
20150316142
2015-11-05

Transmission for motor vehicle and method of pumping transmission fluid through the transmission

#92
20150316063
2015-11-05

Sump pump remote monitoring systems and methods

#93
20150313180
2015-11-05

Pet fountain assembly with lift tube

#94
20150247497
2015-09-03

Waterproof pump enclosure and system including same

#95
20150211682
2015-07-30

Cooling of a Dewar vessel with ice free coolant and for short sample access

#96
20150204333
2015-07-23

Water pumping system for rooftop applications and the like

#97
20150101691
2015-04-16

Submersible water circulation system for enclosed tanks

#98
20140301869
2014-10-09

Method and system of submersible pump and motor performance testing

#99
20140271126
2014-09-18

Wastewater sump assembly

#100
20140238359
2014-08-28

Fuel tank arrangements for self-priming floating pumps

#101
20140224747
2014-08-14

Method and apparatus for treating potable water in municipal and similar water tanks

#102
20140224359
2014-08-14

Universal wet/dry transfer pump

#103
20140202243
2014-07-24

Sump pump system with automated system monitoring and data collection

#104
20140166136
2014-06-19

Fuel supply apparatus

#105
20140138457
2014-05-22

Thermoelectric pumping apparatus

#106
20140119947
2014-05-01

Sump pump remote monitoring systems and methods

#107
20140119946
2014-05-01

Battery backup sump pump systems and methods

#108
20140048004
2014-02-20

Method of and system for evacuating fluid in a sea vessel

#109
20140034162
2014-02-06

Multiple pump system

#110
20130228132
2013-09-05

Pump module for pet fountain

#111
20130228129
2013-09-05

Pet fountain assembly with cord conduit and disconnectable power cord

#112
20130205583
2013-08-15

Easy Bilge

#113
20130092262
2013-04-18

Pumping device for sucking or draining fluid

#114
20130068326
2013-03-21

Submersible water circulation system for enclosed tanks

#115
20130022475
2013-01-24

Energy efficient sewage pumping system with a controller and variable frequency drive and method

#116
20120251341
2012-10-04

Fuel pump module including a horizontal sender gauge

#117
20120247431
2012-10-04

Fuel pump module including a reservoir with multiple walls

#118
20120247430
2012-10-04

Fuel pump module including a reservoir having multiple zones

#119
20120222424
2012-09-06

Compressor and expander device with pressure vessel divider baffle and piston

#120
20120148427
2012-06-14

Battery operated solar charged pump kit utilizing an inline submersible pump

#121
20120128506
2012-05-24

MULTICHAMBER AND MOTOR PUMPS WITH SEVERAL CHAMBERS PER MOTOR PUMP

#122
20120118246
2012-05-17

Sealed and self-contained tankless water heater flushing system

#123
20120060948
2012-03-15

Fuel supply apparatus

#124
20110308624
2011-12-22

Apparatus and methods for conserving energy in fueling applications

#125
20110139280
2011-06-16

PUMP INSTALLATION

#126
20110110794
2011-05-12

SENSORS AND METHODS AND APPARATUS RELATING TO SAME

#127
20110067638
2011-03-24

Pet fountain assembly

#128
20110052414
2011-03-03

Apparatus for Controlling a Pump

#129
20100299052
2010-11-25

Fuel systems and methods for cold environments

#130
20100254838
2010-10-07

Oil drain and suction pump

#131
20100170689
2010-07-08

Hydraulic aggregate for hydraulic power wrenches

#132
20100154907
2010-06-24

UREA STORAGE SYSTEM

#133
20080302097
2008-12-11

Hydraulic unit

#134
20080069705
2008-03-20

HEAT EXCHANGE DEVICE AND FUEL SUPPLY DEVICE

#135
20070297278
2007-12-27

Method and apparatus for storing and delivering liquid color materials

#136
20070274848
2007-11-29

Motor-pump assembly

#137
20060251531
2006-11-09

In-line pumping unit

#138
20050279772
2005-12-22

Liquid delivery system

#139
20050175479
2005-08-11

Electro-hydraulic power unit with a rotary cam hydraulic power unit

#140
20050175467
2005-08-11

Hydraulic device

#141
20050053487
2005-03-10

Motor/pump aggregate

#142
20050052945
2005-03-10

Method and apparatus for storing and delivering liquid color material

#143
18079727
2023-06-27

Electric oil pump with one-way valve

#144
17982162
2023-06-27

Pump guard protective sleeve

#145
17226543
2023-06-06

Drop-in treatment apparatus and system for PFAS-impacted liquids

#146
14824115
2019-07-09

Glide rail

#147
14453770
2015-04-07

Electrical submergible pumping system using a power crossover assembly for a power supply connected to a motor