ClassID:

143976

F04D9/02 - CPC Classification

Classification description:

Priming; Preventing vapour lock Self-priming pumps

Recent Application in this class:
#1
20260078760
2026-03-19

MODULAR CRYOGENIC PERMANENT MAGNET ELECTRICAL MOTORS AND GENERATORSFOR SUBMERGED MOTOR PUMPS AND TURBINES AND RELATED SYSTEMS AND METHODS

#2
20250354557
2025-11-20

METHOD FOR CONTROLLING OF A PUMP UNIT AND A PUMP UNIT FOR PUMPING LIQUID OR SUSPENSION

#3
20250334121
2025-10-30

DEVICES, SYSTEMS, AND METHODS FOR PRIMING A FLUID MANAGEMENT SYSTEM

#4
20240392789
2024-11-28

MODULAR CRYOGENIC PERMANENT MAGNET ELECTRICAL MOTORS AND GENERATORS FOR SUBMERGED MOTOR PUMPS AND TURBINES AND RELATED SYSTEMS AND METHODS

#5
20240392787
2024-11-28

INDUCERS FOR CRYOGENIC PUMPS AND RELATED SYSTEMS AND METHODS

#6
20240344519
2024-10-17

PRIMER PUMP ASSEMBLY AND A METHOD OF COOLING A MARINE VESSEL

#7
20240309872
2024-09-19

Self-priming centrifugal pump assembly with multifunctional sealing system

#8
20240287991
2024-08-29

Driven gas-liquid separation starting device

#9
20240068476
2024-02-29

SELF-PRIMING WATER JACKET WITH PRIMING INLET

#10
20230400027
2023-12-14

Self-priming jet pump

#11
20230313801
2023-10-05

Self-priming apparatus for quick no-water startup

#12
20230265850
2023-08-24

Quick no-water startup apparatus for centrifugal pump

#13
20230243355
2023-08-03

Pneumatic type water-free starting self-priming device

#14
20230160397
2023-05-25

Self-priming assembly for use in a multi-stage pump

#15
20220325716
2022-10-13

Quick startup device for centrifugal pump

#16
20220290673
2022-09-15

Pumping System

#17
20220120280
2022-04-21

Self-priming starting device for centrifugal pump

#18
20210396240
2021-12-23

Centrifugal pump device

#19
20210095672
2021-04-01

Pump casing with adaptive primer and impeller

#20
20210025400
2021-01-28

Device for protecting an electric pump against overpressures

#21
20200362866
2020-11-19

Priming protection

#22
20200355185
2020-11-12

Hemispherical entrainment-type high-flow self-priming centrifugal pump

#23
20200347946
2020-11-05

AIR RELEASE VALVE

#24
20200240434
2020-07-30

Self-priming assembly for use in a multi-stage pump

#25
20200158115
2020-05-21

INERTIA VACUUM ASSISTED SELF-PRIMING PUMP

#26
20200158114
2020-05-21

Gas-lock re-prime shaft passage in submersible well pump and method of re-priming the pump

#27
20190078570
2019-03-14

Automatic Initiation of Priming Sequence for Metering Pumps

#28
20180258893
2018-09-13

Fuel pump and fuel supply system using the same

#29
20180163727
2018-06-14

IMPELLER PUMP

#30
20180094630
2018-04-05

Wastewater and analysis system with monitored sample tube fill level

#31
20180080449
2018-03-22

Self-priming dedicated water feature pump

#32
20180073509
2018-03-15

Centrifugal pump assembly

#33
20180058466
2018-03-01

Self-priming pump

#34
20170342985
2017-11-30

Pump

#35
20170328366
2017-11-16

Centrifugal pump

#36
20170159673
2017-06-08

Centrifugal pump with high and low inlet configurations

#37
20170081835
2017-03-23

METHOD FOR PUMPING A LIQUID, PUMPING STATION, AND PUMPING AREA

#38
20170030360
2017-02-02

Water pumping system for rooftop applications and the like

#39
20160363124
2016-12-15

Vertical self-priming pump

#40
20160333882
2016-11-17

Self-priming centrifugal pump

#41
20160327046
2016-11-10

Self-priming centrifugal pump

#42
20160084253
2016-03-24

Multi-stage, self-priming centrifugal pump assembly

#43
20160032940
2016-02-04

Centrifugal pump

#44
20150308433
2015-10-29

Inlet sieve for self-priming floating pumps

#45
20150211530
2015-07-30

Side-channel pump and method for operating same

#46
20150204333
2015-07-23

Water pumping system for rooftop applications and the like

#47
20150118024
2015-04-30

CENTRIFUGAL PUMP WITH SELF-CLEANING WEAR PLATE

#48
20150071774
2015-03-12

Centrifugal pump

#49
20150071773
2015-03-12

Centrifugal pump

#50
20150044016
2015-02-12

Fuel system with liquid ring pump with centrifugal air/fuel separator

#51
20150044015
2015-02-12

Side channel liquid ring pump and impeller for side channel liquid ring pump

#52
20140238359
2014-08-28

Fuel tank arrangements for self-priming floating pumps

#53
20140169940
2014-06-19

Self-priming centrifugal pump

#54
20140133960
2014-05-15

Cap for cooperating with a flow control element of a valve for a self-priming electric pump

#55
20130189124
2013-07-25

VERTICAL SELF-PRIMING PUMP

#56
20120251308
2012-10-04

Multi-stage centrifugal pump unit

#57
20120020810
2012-01-26

Priming protection

#58
20120009074
2012-01-12

Water-conducting household appliance, particularly a dishwasher

#59
20110280705
2011-11-17

Water pump and water pump system and method

#60
20110030822
2011-02-10

Dry run porting system

#61
20100314301
2010-12-16

Molded pump

#62
20100303651
2010-12-02

Vacuum self priming pump

#63
20080193276
2008-08-14

Stacked self-priming pump and centrifugal pump

#64
20080076619
2008-03-27

Self-priming centrifugal pump

#65
20070248456
2007-10-25

Filtration device combined with self-priming pump

#66
20070154321
2007-07-05

Priming protection

#67
20050196269
2005-09-08

Stacked self-priming pump and centrifugal pump

#68
20050158194
2005-07-21

Molded pump

#69
18499790
2024-10-01

Systems and methods for maintaining the prime of a pump

#70
17818360
2023-06-06

Centrifugal pump