ClassID:

144404

F04F1/18 - CPC Classification

Classification description:

Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium being mixed with, or generated from the liquid to be pumped

Sub-classes:
Recent Application in this class:
#1
20230392363
2023-12-07

Effluent elevator system and methods of using

#2
20230375007
2023-11-23

AIR EXTRACTOR

#3
20220290694
2022-09-15

PNEUMATIC FLUID PUMP WITH DUAL ROTATIONAL SWIRLING CLEANING ACTION

#4
20220213836
2022-07-07

APU eductor plenum flow stability splitter

#5
20220176327
2022-06-09

Confined plunging liquid jet reactor with energy recovery

#6
20210301836
2021-09-30

Method and Device for Compressing a Gas

#7
20210071687
2021-03-11

Gas compressor with eductor assembly

#8
20200325870
2020-10-15

Booster assembly and apparatus

#9
20200291966
2020-09-17

Aspirator integrated pressure relief valve and vent valve for an inflation system

#10
20200209092
2020-07-02

Sump Pump Tracking Device

#11
20200060070
2020-02-27

High flow fertilizer/air meter with secondary nozzling

#12
20190336914
2019-11-07

Reverse osmosis treatment system for recovering energy generated both at brine and permeate sides during sea water desalination

#13
20190293092
2019-09-26

High-density powder pump

#14
20190249689
2019-08-15

Aspirator integrated pressure relief valve and vent valve assembly for an inflation system

#15
20190193349
2019-06-27

Combination structure for a hose connected between an air compressor and a tire

#16
20180333546
2018-11-22

Essential oils diffuser

#17
20180100492
2018-04-12

Magnetic fluid drive unit and magnetic fluid driving method

#18
20180099068
2018-04-12

Diffusing apparatus and methods

#19
20180022421
2018-01-25

Static bilge pump

#20
20180017459
2018-01-18

Sump pump tracking device

#21
20170343017
2017-11-30

Submersible pump water jetter

#22
20170284423
2017-10-05

Airlift pump

#23
20170268469
2017-09-21

Fuel pump with improved delivery properties

#24
20170175722
2017-06-22

Method and apparatus for metering and vaporizing fluids

#25
20170173534
2017-06-22

Reverse osmosis treatment system for recovering energy generated both at brine and permeate sides during seawater desalination

#26
20160312805
2016-10-27

FOAM PUMP

#27
20160298615
2016-10-13

Steam operated, self cycling, diaphragm water pump

#28
20160243488
2016-08-25

Apparatus and method for treating gas in a liquid medium with ultrasonic energy for chemical reaction

#29
20150315047
2015-11-05

Apparatus and method for liquid pumping

#30
20150300375
2015-10-22

APPARATUS AND METHOD FOR TRANSFERRING AND PRESSURIZING POWDER

#31
20150184677
2015-07-02

Airlift pump

#32
20150159676
2015-06-11

Intermittent fluid pump

#33
20150104333
2015-04-16

Bubble pump resistant to attack by molten aluminum

#34
20150078921
2015-03-19

Air treatment chemical dispenser having angled dispersion of chemicals

#35
20150004008
2015-01-01

Static bilge pump

#36
20140169989
2014-06-19

Bubble lift system and bubble lift method

#37
20140147296
2014-05-29

Cooling device fitted with a compressor

#38
20140110335
2014-04-24

Scum removal system for liquids

#39
20130160688
2013-06-27

Gas lift pump apparatus with ultrasonic energy generator and method

#40
20130136671
2013-05-30

Reagent fluid dispensing device, and method of dispensing a reagent fluid

#41
20130047661
2013-02-28

Device for compressing and drying gas

#42
20120116099
2012-05-10

Method of conveying liquids

#43
20120091071
2012-04-19

Liquid pump apparatus and method

#44
20120090339
2012-04-19

DEVICE AND METHOD FOR PROVIDING ADDITIONAL HEAD TO SUPPORT A REFRIGERATION LIQUID FEED SYSTEM

#45
20090129946
2009-05-21

Pumping unit for delivery of liquid medium from a vessel

#46
20090047140
2009-02-19

Airlift pump

#47
20080029969
2008-02-07

Jet pump slip joint piston ring seal

#48
20070166171
2007-07-19

Geyser pump

#49
20060032374
2006-02-16

Hydraulic liquid pumping system

#50
20050279420
2005-12-22

System for recovering viscous fluid from bottles

#51
20050207901
2005-09-22

Pump for transferring particulate material

#52
20050013700
2005-01-20

Hydraulic vacuum pump

#53
18448806
2024-03-19

Thermal pumping of liquid hydrogen

#54
15095043
2019-09-17

Compressed air operated fluid pump applied to oil wells

#55
14339819
2015-06-16

Pump for pumping molten metal with reduced dross formation in a bath of molten metal

#56
12478547
2017-07-04

Submersible pump water jetter