ClassID:

144398

F04F1/06 - CPC Classification

Classification description:

Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped

Sub-classes:
Recent Application in this class:
#1
20250215866
2025-07-03

FLUID FLOW CONVERTER WITH INTERSTAGE FLOW CHANNEL

#2
20250198400
2025-06-19

FLUID FLOW CONVERTER WITH SUPPORT ARRANGEMENT

#3
20240369076
2024-11-07

Pump

#4
20240280117
2024-08-22

Full-plastic liquid pump

#5
20230213111
2023-07-06

Pump, multi-function valve, and controller apparatus

#6
20220372995
2022-11-24

Pump operated by hand or pressurized air

#7
20220143635
2022-05-12

SYSTEM FOR DROPPING A LIQUID

#8
20210293255
2021-09-23

Pumping system

#9
20210230968
2021-07-29

Pump, multi-function valve, and controller apparatus

#10
20210199109
2021-07-01

Pneumatic pump control system

#11
20210190079
2021-06-24

GAS SUPPLY APPARATUS

#12
20210095445
2021-04-01

Pumping device

#13
20200300272
2020-09-24

Waste liquid treatment apparatus, method and sample analyzer

#14
20200263706
2020-08-20

Pneumatic landfill pump cycle counter

#15
20200261936
2020-08-20

Liquid storage tank upper cover assembly of drawing or adding liquid machine and drawing or adding liquid machine

#16
20200224679
2020-07-16

State determination device of liquid pumping apparatus, and liquid pumping apparatus

#17
20200217432
2020-07-09

Deterioration determination device of liquid pumping apparatus, and liquid pumping apparatus

#18
20190195244
2019-06-27

Suction pumps

#19
20190126214
2019-05-02

Dispensing system

#20
20190063415
2019-02-28

Pumping apparatus, treatment solution supplying device, substrate treating apparatus, liquid draining method, and liquid replacing method

#21
20190029448
2019-01-31

Pump operated lid

#22
20190009242
2019-01-10

Microreactor

#23
20180196448
2018-07-12

Gas assisted chemical injection system

#24
20180119710
2018-05-03

Pump device for converting rotation into fluid flow

#25
20180100500
2018-04-12

Energy generating system and method

#26
20180087536
2018-03-29

Well monitoring and pressure controlled landfill pump

#27
20180058457
2018-03-01

GAS SUPPLY APPARATUS

#28
20180022421
2018-01-25

Static bilge pump

#29
20170321724
2017-11-09

SUBMERSIBLE PNEUMATIC PUMP WITH AIR EXCLUSION VALVE

#30
20170157527
2017-06-08

Humidification System with Pressure Condensate Return and Method Therefor

#31
20160319994
2016-11-03

Tee-tube pressure vessel

#32
20160222985
2016-08-04

Method and system for injecting a process fluid using a high pressure drive fluid

#33
20150345516
2015-12-03

VACUUM ASSISTED PUMP WITH INTEGRATED INSTRUMENTATION AND CONTROL SYSTEM FOR SLURRY, SLUDGE AND SOLID LADEN FLUIDS

#34
20150322970
2015-11-12

Pressurized liquid lifting device and liquid lifting method

#35
20150322969
2015-11-12

Liquid lifting device and liquid lifting method

#36
20150316074
2015-11-05

Vacuum ejector with tripped diverging exit flow

#37
20150275924
2015-10-01

VEHICLE SUPPLY SYSTEM AND USE OF A THERMO-HYDRAULIC UNIT IN A VEHICLE

#38
20150219122
2015-08-06

Direct current magnetohydrodynamic pump

#39
20150159676
2015-06-11

Intermittent fluid pump

#40
20150041403
2015-02-12

Pressurized gas lifting and gas rejuvenation

#41
20150004008
2015-01-01

Static bilge pump

#42
20140363312
2014-12-11

Fluid pumping system and a fluid turbine system including the fluid pumping system

#43
20140110335
2014-04-24

Scum removal system for liquids

#44
20140000963
2014-01-02

System and method for moving a first fluid using a second fluid

#45
20130323087
2013-12-05

Compressor and method for compressing technical gases

#46
20130081381
2013-04-04

POWER DEVICE USING GAS TO DRIVE LIQUID

#47
20120312376
2012-12-13

Material transport apparatus and method

#48
20120308407
2012-12-06

Dual injection airlift pump

#49
20120275944
2012-11-01

Airflow passage structure of manual pump of fluid-pumping apparatus

#50
20120269654
2012-10-25

OPTIMIZATION OF DEAD SPACE IN PISTONLESS COMPRESSORS

#51
20120148422
2012-06-14

Liquid dispenser

#52
20120134851
2012-05-31

COMPRESSOR COMPRISING A PISTON DUMMY

#53
20120070314
2012-03-22

MICROPUMP

#54
20110300004
2011-12-08

Pumping system and method

#55
20110255998
2011-10-20

Method and device for pumping liquids using a pneumatic positive displacement pump

#56
20110192573
2011-08-11

SYSTEM AND METHOD FOR MOVING A FIRST FLUID USING A SECOND FLUID

#57
20110171042
2011-07-14

Non-rotating single post ram for inductor pump

#58
20110129392
2011-06-02

Micropump device

#59
20110052430
2011-03-03

FLUID MACHINE

#60
20100224271
2010-09-09

Waste water pumping device

#61
20100034671
2010-02-11

Pistonless compressor

#62
20090257888
2009-10-15

Multiple chamber pump and method

#63
20090200805
2009-08-13

Compressed-air-storing electricity generating system and electricity generating method using the same

#64
20090169401
2009-07-02

TWO-STAGE AIR POWERED PUMP

#65
20090129958
2009-05-21

Cyclic condensate pump having a three-way valve

#66
20090116969
2009-05-07

Rail tank car evacuation and transfer system and method

#67
20080314932
2008-12-25

Pumping dispenser for viscous liquids

#68
20080286122
2008-11-20

GAS-DRIVEN LIQUID PUMP

#69
20080240934
2008-10-02

Liquid pressure-feed device

#70
20080226504
2008-09-18

PUMP UNIT AND CENTRIFUGAL MICROFLUIDIC SYSTEM HAVING THE SAME

#71
20080166243
2008-07-10

Liquid for Compressing a Gaseous Medium and Use of the Same

#72
20080083219
2008-04-10

Fluid displacement based generator & method of using the same

#73
20080075605
2008-03-27

Valve and micro fluid pump having the same

#74
20080050248
2008-02-28

Method For Transportation Of Liquids By Steam Or Compressed Air And A Device For Realization Of The Method

#75
20080017045
2008-01-24

APPARATUS AND METHOD FOR PRESERVING, PROTECTING, OR ENHANCING ITEMS INCLUDING SOLIDS OR LIQUIDS

#76
20070267065
2007-11-22

Chemical liquid supply system

#77
20070258828
2007-11-08

Method and Device for Compressing a Gaseous Medium

#78
20070248473
2007-10-25

Device for pressurizing canisters of liquid adhesives and coatings

#79
20070119502
2007-05-31

Device for purging deposit from an engine

#80
20070113893
2007-05-24

Pressurizing liquid delivery device

#81
20070023365
2007-02-01

Pumping device

#82
20060280629
2006-12-14

Loop-type microfluidic system

#83
20060239830
2006-10-26

Cyclic condensate pump having a three-way valve

#84
20060218908
2006-10-05

Hydraulic compressor

#85
20060210404
2006-09-21

Pivoting mechanism for use in a high temperature steam distribution system

#86
20060174942
2006-08-10

High purity chemical delivery system

#87
20060120878
2006-06-08

Magnetofluiddynamic pumps for non-conductive fluids

#88
20060115365
2006-06-01

Liquid pump with multiple chambers and control apparatus

#89
20050284155
2005-12-29

Zero-clearance ultra-high-pressure gas compressor

#90
20050279420
2005-12-22

System for recovering viscous fluid from bottles

#91
20050238500
2005-10-27

Method and apparatus for dispensing small volumes of fluid

#92
20050226734
2005-10-13

Gas pressure driven fluid pump having an electronic cycle counter and method

#93
20050163629
2005-07-28

Automatic pneumatic pump

#94
20050077032
2005-04-14

Method and system for heating and cooling slurries

#95
14629413
2018-03-06

Well monitoring and pressure controlled landfill pump