ClassID:

143040

F04B43/026 - CPC Classification

Classification description:

Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber

Recent Application in this class:
#1
20260126037
2026-05-07

MULTIPLE DISPLACEMENT PUMP

#2
20260078748
2026-03-19

SUPPORT MECHANISM, VALVE CORE ASSEMBLY, BOOSTER PUMP, AND WATER PURIFIER

#3
20260053993
2026-02-26

PUMP DEVICE

#4
20260036121
2026-02-05

SUPPORT MECHANISM, VALVE CORE ASSEMBLY, BOOSTER PUMP, AND WATER PURIFIER

#5
20260013678
2026-01-15

SEQUENTIALLY ACTIVATED MULTI-DIAPHRAGM FOAM PUMPS, REFILL UNITS AND DISPENSER SYSTEMS

#6
20250376980
2025-12-11

DIAPHRAGM PUMP AND VALVE ASSEMBLY FOR A DIAPHRAGM PUMP

#7
20250243883
2025-07-31

PNEUMATIC DRIVE DEVICE FOR TRANSLATIONAL AND/OR ROTATIONAL MOVEMENT

#8
20250223956
2025-07-10

AEROSOL-GENERATING DEVICE

#9
20250207576
2025-06-26

PUMP AND COMBINATION PUMP/MIXER DEVICE WITH LOBED CHECK VALVE FLUID PASSAGES

#10
20250180013
2025-06-05

SELF-PRIMING TRANSFER PUMP WITH QUICK PUMP ATTACHMENT/DETACHMENT

#11
20250180003
2025-06-05

PUMP DIAPHRAGM WITH IMPROVED SEAL GEOMETRY

#12
20250122871
2025-04-17

PUMPING CASSETTE

#13
20250084840
2025-03-13

MEDICAL FLUID THERAPY MACHINE INCLUDING READILY ACCESSIBLE PNEUMATIC MANIFOLD AND VALVES THEREFORE

#14
20250035101
2025-01-30

LIQUID PUMPING CASSETTES AND ASSOCIATED PRESSURE DISTRIBUTION MANIFOLD AND RELATED METHODS

#15
20250020116
2025-01-16

LIQUID PUMPING CASSETTES AND ASSOCIATED PRESSURE DISTRIBUTION MANIFOLD AND RELATED METHODS

#16
20240392770
2024-11-28

DIAPHRAGM PUMP

#17
20240344509
2024-10-17

DOUBLE MEMBRANE PUMP

#18
20240339583
2024-10-10

Slurry transfer device and slurry transfer method using the same

#19
20240309866
2024-09-19

COMPACT MULTI-CHAMBER FOAM-AT-A-DISTANCE PUMPS AND DISPENSERS

#20
20240271608
2024-08-15

SUPPORT MECHANISM, VALVE CORE ASSEMBLY, BOOSTER PUMP, AND WATER PURIFIER

#21
20240247650
2024-07-25

SERVO DRIVEN PUMP

#22
20240141883
2024-05-02

SELF-LOCKING MEMBRANE SYSTEM

#23
20240066197
2024-02-29

Pumping cassette

#24
20240018952
2024-01-18

In and Relating to Pumps

#25
20230358223
2023-11-09

PUMP AND COMBINATION PUMP/MIXER DEVICE

#26
20230272791
2023-08-31

Liquid pumping cassettes and associated pressure distribution manifold and related methods

#27
20230190049
2023-06-22

SEQUENTIALLY ACTIVATED MULTI-DIAPHRAGM FOAM PUMPS, REFILL UNITS AND DISPENSER SYSTEMS

#28
20230184237
2023-06-15

Transmission assembly of pump head of diaphragm booster pump, pump head of diaphragm booster pump, and diaphragm booster pump

#29
20230158525
2023-05-25

COATING AGENT PUMP, COATING INSTALLATION AND ASSOCIATED OPERATING METHOD

#30
20230151804
2023-05-18

Pump head of diaphragm booster pump, diaphragm booster pump, water treatment device and method of operating pump head

#31
20230071091
2023-03-09

Aerosol-generating device

#32
20220307517
2022-09-29

Self-priming transfer pump with quick pump attachment/detachment

#33
20220290663
2022-09-15

Automated fluid transfer system

#34
20220290661
2022-09-15

Reciprocating pump

#35
20220282721
2022-09-08

Liquid pumping cassettes and associated pressure distribution manifold and related methods

#36
20220275798
2022-09-01

A Diaphragm Pump

#37
20220235754
2022-07-28

DIAPHRAGM PUMP DRIVE FOR AN ELECTRIC PUMP

#38
20220228583
2022-07-21

Liquid dispensing

#39
20220170560
2022-06-02

VALVE ASSEMBLIES FOR A DIAPHRAGM PUMP

#40
20220170452
2022-06-02

FLUID EJECTION APPARATUS FOR DISCREET PACKET TRANSFER OF FLUID

#41
20220154710
2022-05-19

Diaphragm pump and motor system and method

#42
20220133095
2022-05-05

Foaming soap dispensers

#43
20220010790
2022-01-13

Booster pump and water purification device

#44
20210363983
2021-11-25

MIcro Pump Systems and Processing Techniques

#45
20210355928
2021-11-18

Multi-chamber wobble plate pump with asymmetric inlet valve

#46
20210324848
2021-10-21

Air pump with external pressure relief valve

#47
20210277882
2021-09-09

Oscillating displacement pump having an electrodynamic drive and method for operation thereof

#48
20210254612
2021-08-19

Diaphragm for a multi-chamber wobble plate pump

#49
20210222681
2021-07-22

Pumps

#50
20210156372
2021-05-27

PROCESS-ORIENTED CLAMPING OF A DIAPHRAGM ASSEMBLY

#51
20210155005
2021-05-27

Fluid pumps with shifters

#52
20210145221
2021-05-20

Sequentially activated multi-diaphragm foam pumps, refill units and dispenser systems

#53
20210138139
2021-05-13

PUMP SYSTEM, DIALYSIS MACHINE, AND METHOD OF OPERATING A PUMP

#54
20210131417
2021-05-06

DIAPHRAGM PUMP WITH SENSOR MOUNT

#55
20210123440
2021-04-29

Pump assemblies configured for drive and pump end interchangeability

#56
20210040943
2021-02-11

Pumping structure, particle detector and method for pumping

#57
20210025375
2021-01-28

Non-pulsating pump and method of controlling the same

#58
20210017975
2021-01-21

Pumping system

#59
20210015986
2021-01-21

Medical fluid therapy machine including readily accessible pneumatic manifold and valves therefore

#60
20200383528
2020-12-10

Foaming soap dispensers

#61
20200370547
2020-11-26

Aerosol-generating device

#62
20200325888
2020-10-15

Micropump MEMS device for moving or ejecting a fluid, in particular microblower or flowmeter

#63
20200248683
2020-08-06

Pump assembly

#64
20200217186
2020-07-09

Dual-pressure boosting liquid partition device, system , fleet and use

#65
20200158105
2020-05-21

Diaphragm pump utilizing duckbill valves, multi-directional ports and flexible electrical connectivity

#66
20200037826
2020-02-06

High quality non-aerosol hand sanitizing foam

#67
20190376503
2019-12-12

Diaphragm pump and valve plate thereof

#68
20190329565
2019-10-31

Diaphragm pump, pump unit, and inkjet printer

#69
20190298231
2019-10-03

Liquid pumping cassettes and associated pressure distribution manifold and related methods

#70
20190195208
2019-06-27

Non-pulsation pump having stroke adjustment mechanism

#71
20190145397
2019-05-16

DIAPHRAM PUMPS WITH AIR SAVINGS DEVICES

#72
20190145387
2019-05-16

Multi-chamber wobble plate pump

#73
20190136847
2019-05-09

Aerosol-generating device

#74
20190136846
2019-05-09

Valve head structure for diaphragm pump and diaphragm pump having same

#75
20190101939
2019-04-04

Control method of fluid device

#76
20190063418
2019-02-28

Gas transportation device

#77
20190063416
2019-02-28

Micro-fluid pump

#78
20190036287
2019-01-31

Diaphragm pump and motor system and method

#79
20190003473
2019-01-03

Systems and methods for controlling multi-chamber subsea pumps

#80
20180363646
2018-12-20

Diaphragm pump

#81
20180360276
2018-12-20

Foaming soap dispensers

#82
20180335028
2018-11-22

Positive displacement pump with pressure compensating calibration

#83
20180289223
2018-10-11

Sequentially activated multi-diaphragm foam pumps, refill units and dispenser systems

#84
20180258923
2018-09-13

Micro pump systems and processing techniques

#85
20180230979
2018-08-16

Reciprocating pump and transmission assembly having a one-way clutch

#86
20180223828
2018-08-09

Diaphragm pump

#87
20180223826
2018-08-09

Dual diaphragm pump having a pressure pulsation pad

#88
20180142684
2018-05-24

Diaphragm pump

#89
20180128255
2018-05-10

Double-membrane pump and method for operation of such a double-membrane pump

#90
20180066645
2018-03-08

Aerosol-generating device

#91
20180045190
2018-02-15

One piece diaphragm

#92
20180038363
2018-02-08

DOUBLE DIAPHRAGM PUMPS WITH AN ELECTROMAGNETIC DRIVE

#93
20180023556
2018-01-25

Micro water pump capable of controlling flow precisely

#94
20180010594
2018-01-11

Pumping system

#95
20170350383
2017-12-07

Conveying device

#96
20170342977
2017-11-30

Methods of manufacturing a pneumatic reciprocating fluid pump with improved check valve assembly

#97
20170306935
2017-10-26

Reciprocating pump

#98
20170298930
2017-10-19

Cooling methods for electrically operated diaphragm pumps

#99
20170298920
2017-10-19

MODULAR BIB PUMP

#100
20170298919
2017-10-19

DIRECT DRIVE LINEAR MOTOR FOR CONVENTIONALLY ARRANGED DOUBLE DIAPHRAGM PUMP

#101
20170292513
2017-10-12

Pump assembly health assessment

#102
20170290470
2017-10-12

Sequentially activated multi-diaphragm foam pumps, refill units and dispenser systems

#103
20170274886
2017-09-28

Electric motor-pump assembly

#104
20170231437
2017-08-17

High quality non-aerosol hand sanitizing foam

#105
20170226997
2017-08-10

Diaphragm pumps with air savings devices

#106
20170218946
2017-08-03

Bellows pump device

#107
20170197225
2017-07-13

Diaphragm pump sprayer

#108
20170135531
2017-05-18

Sequentially activated multi-diaphragm foam pumps, refill units and dispenser systems

#109
20170127956
2017-05-11

Fluid control device

#110
20170074260
2017-03-16

Air pump

#111
20160348670
2016-12-01

Electric pump

#112
20160327032
2016-11-10

HOT SLURRY PUMP

#113
20160305410
2016-10-20

High-pressure to low-pressure changeover valve for a positive displacement pump

#114
20160265525
2016-09-15

Valve clack and air pump having same

#115
20160250401
2016-09-01

Peristaltic pump and pumping method, in particular for use as implant

#116
20160237997
2016-08-18

Miniature pump

#117
20160201663
2016-07-14

Diaphragm pump with sensor mount

#118
20160161059
2016-06-09

Chemical injection system

#119
20160138582
2016-05-19

Systems and methods for supplying reduced pressure and measuring flow using a disc pump system

#120
20160121351
2016-05-05

DOUBLE ACTING BLADDER PUMP

#121
20160108903
2016-04-21

Eccentric roundel structure for three-compressing-chamber diaphragm pump

#122
20160108902
2016-04-21

Eccentric roundel structure for four-booster chamber diaphragm pump

#123
20160106906
2016-04-21

BLOOD PUMP

#124
20160106903
2016-04-21

Fluid Pump Systems, and Related Methods for Pumping Biological Fluids

#125
20160017882
2016-01-21

DIAPHRAGM PUMP UTILIZING DUCKBILL VALVES, MULTI-DIRECTIONAL PORTS AND FLEXIBLE ELECTRICAL CONNECTIVITY

#126
20160015882
2016-01-21

Medical fluid pumping systems and related devices and methods

#127
20150337827
2015-11-26

Four-compression-chamber diaphragm pump with diaphragm positioning structures to reduce vibration

#128
20150337819
2015-11-26

Roundel structure for five-compressing-chamber diaphragm pump

#129
20150260182
2015-09-17

Pulsation damper

#130
20150260181
2015-09-17

Micro pumps

#131
20150211509
2015-07-30

MULTIPLE DIAPHRAGM PUMP

#132
20150204318
2015-07-23

Air compressor with improved noise reduction performance

#133
20150198179
2015-07-16

Compressor system with pressure pulsation dampener and check valve

#134
20150098837
2015-04-09

Hydraulically actuated diaphragm pumps

#135
20150004019
2015-01-01

Diaphragm pumps with air savings devices

#136
20150004003
2015-01-01

Air mass control for diaphragm pumps

#137
20140363313
2014-12-11

Pumping system

#138
20140334957
2014-11-13

Pneumatic reciprocating fluid pump with improved check valve assembly, and related methods

#139
20140271274
2014-09-18

Electromagnetic vibrating diaphragm pump

#140
20140241905
2014-08-28

Positive displacement pump with pressure compensating calibration

#141
20140230921
2014-08-21

Adjusting device for a vehicle component

#142
20140199188
2014-07-17

Diaphragm pump with muffler-mounted sensor

#143
20140154117
2014-06-05

Diaphragm pump

#144
20140140873
2014-05-22

Sealed diaphragm pump

#145
20140140869
2014-05-22

Pneumatic reciprocating fluid pump with reinforced shaft

#146
20140099222
2014-04-10

Highly airtight gas pump

#147
20140060651
2014-03-06

Chemical injection system

#148
20140044563
2014-02-13

Diaphragm pumps

#149
20140023533
2014-01-23

Electromagnetic vibrating diaphragm pump

#150
20140003978
2014-01-02

Electromagnetic vibrating diaphragm pump

#151
20130078125
2013-03-28

Air operated double diaphragm pump

#152
20130078121
2013-03-28

Separation type pneumatic dual partition membrane pump and external pneumatic control valve thereof

#153
20130064687
2013-03-14

Shuttling by-pass compressor apparatus

#154
20130039789
2013-02-14

VACUUM, PRESSURE OR LIQUID PUMP

#155
20130032232
2013-02-07

Human powered irrigation diaphragm pump

#156
20130017110
2013-01-17

Diaphragm pump using duckbill and other types of valves

#157
20130017102
2013-01-17

Over-center linkage

#158
20130017101
2013-01-17

PUMP DEVICE

#159
20130008538
2013-01-10

VALVE FOR ALTERNATELY FILLING TWO WORKING CHAMBERS OF A PISTON-CYLINDER SYSTEM OF A PUMP

#160
20120315166
2012-12-13

Diaphragm pump with inlet pathways passing through mounting holes

#161
20120301338
2012-11-29

Compressing diaphragm pump having abnormal pressure preventing features for spray use

#162
20120282118
2012-11-08

Reciprocation pump and a dialysis apparatus equipped with the reciprocation pump

#163
20120271226
2012-10-25

Medical fluid pumping systems and related devices and methods

#164
20120269664
2012-10-25

Motor pump unit

#165
20120164010
2012-06-28

Diaphragm pump and motor system and method

#166
20120097274
2012-04-26

Vibration reducing device for pump cover body of water shut-off diaphragm pump

#167
20120065457
2012-03-15

FLUID PRESSURE GENERATING MEANS

#168
20120063925
2012-03-15

Metering Pump

#169
20120045350
2012-02-23

Double-diaphragm pumps

#170
20120027628
2012-02-02

Compressor and oxygen concentrator

#171
20120020818
2012-01-26

AIR COMPRESSOR STRUCTURE FOR PAINT SPRAYING

#172
20110282223
2011-11-17

Diaphragm pump and blood pressure monitor

#173
20110097227
2011-04-28

Structure of preventing water from leakage for the pressurized pump of diaphragm type

#174
20100286597
2010-11-11

DC-AC frequency converter type mucus suction device

#175
20100247334
2010-09-30

Piston systems having a flow path between piston chambers, pumps including a flow path between piston chambers, and methods of driving pumps

#176
20100221124
2010-09-02

Fluid transporting device using conductive polymer

#177
20100202893
2010-08-12

Motor/pump assembly

#178
20100183462
2010-07-22

Diaphragm pump

#179
20100137781
2010-06-03

Bubble-type nose cleaner

#180
20100021312
2010-01-28

Pump apparatus and method

#181
20100014998
2010-01-21

DIAPHRAGM PUMP

#182
20090304532
2009-12-10

MULTIPLE MEMBRANE PUMP FOR FOOD LIQUIDS AND THE LIKE

#183
20090285698
2009-11-19

Diaphragm pump

#184
20090068036
2009-03-12

Compressing diaphragm pump having automatic air expelling and pressure abnormal-preventing features for spray use

#185
20090060756
2009-03-05

Two-chamber blood pump

#186
20090060753
2009-03-05

Self-adaptive piston blood pump

#187
20090016913
2009-01-15

Balanced dual rocking piston pumps

#188
20090010778
2009-01-08

Diaphragm pumping device

#189
20080255405
2008-10-16

Fluid pressure generating means

#190
20080181786
2008-07-31

Pump and pump control circuit apparatus and method

#191
20080056916
2008-03-06

Pump device

#192
20080027270
2008-01-31

Fluid pressure generating means

#193
20080003120
2008-01-03

Pump apparatus and method

#194
20070297926
2007-12-27

MULTISTEP DIAPHRAGM PUMP

#195
20070217929
2007-09-20

Diaphragm pumping device

#196
20070160485
2007-07-12

Air pump with air noise reduction structure

#197
20070101860
2007-05-10

Method and structure of preventing water from leakage for the pressurized pump of diaphragm type

#198
20060254657
2006-11-16

Spool valve apparatus and method

#199
20060178612
2006-08-10

Blood processing systems with fluid flow cassette with a pressure actuated pump chamber and in-line air trap

#200
20060178611
2006-08-10

Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions

#201
20050249610
2005-11-10

Five piston diaphragm pump

#202
20050234385
2005-10-20

Blood processing systems with fluid flow cassette with a pressure actuated pump chamber and in-line air trap

#203
20050234384
2005-10-20

Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions

#204
20050169780
2005-08-04

Valves for a diaphragm pump

#205
20050147529
2005-07-07

Programmable, fluid pressure actuated blood processing systems and methods

#206
15603710
2018-08-14

Diaphragms with encapsulated springs

#207
14477841
2015-09-01

High volume dual diaphragm pump with vacuum relief