ClassID:

143630

F04C19/00 - CPC Classification

Classification description:

Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids

Sub-classes:
Recent Application in this class:
#1
20240133380
2024-04-25

Control of liquid ring pump

#2
20230332601
2023-10-19

Control of operating liquid flow into a liquid ring pump

#3
20230243353
2023-08-03

Liquid ring pump control

#4
20230001322
2023-01-05

Distillation apparatus

#5
20220268286
2022-08-25

Centrifugal air compressor and control

#6
20220018347
2022-01-20

SEPARATOR SYSTEM

#7
20210048027
2021-02-18

Liquid ring pump manifold

#8
20210025390
2021-01-28

METHOD AND APPARATUS RELATED TO SERVICING OF LIQUID RING PUMPS

#9
20210017989
2021-01-21

Liquid ring pump control

#10
20200200172
2020-06-25

Liquid-ring vacuum pump having internal inspection and foreign matter removal functions

#11
20200141410
2020-05-07

Liquid ring vacuum pump

#12
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

#13
20180334957
2018-11-22

METHOD AND APPARATUS FOR OPERATING A GAS TURBINE USING WET COMBUSTION

#14
20180245594
2018-08-30

PUMP SYSTEM INCLUDING A CONTROLLER

#15
20180216468
2018-08-02

BLADE CONTOUR OF A ROTOR FOR A LIQUID RING PUMP

#16
20180209420
2018-07-26

Liquid ring pump

#17
20180207576
2018-07-26

Abatement system

#18
20180179894
2018-06-28

Impeller-type liquid ring compressor

#19
20160319806
2016-11-03

Microfluidic pump

#20
20160201672
2016-07-14

Low pressure sealing liquid entry area in a compressor type liquid ring pump

#21
20160169226
2016-06-16

Liquid ring fluid flow machine

#22
20160090982
2016-03-31

Liquid ring screw pump functional design

#23
20140377084
2014-12-25

Liquid ring vacuum pump with cavitation regulation

#24
20140322039
2014-10-30

Bearing arrangement and wear indicator for a liquid ring vacuum pump

#25
20140286797
2014-09-25

Liquid-Ring Vacuum Pump and Impeller for a Liquid-Ring Vacuum Pump

#26
20140119955
2014-05-01

Port plate of a flat sided liquid ring pump having a gas scavenge passage therein

#27
20130209251
2013-08-15

SEAL ARRANGEMENT ALONG THE SHAFT OF A LIQUID RING PUMP

#28
20120148421
2012-06-14

Ejector pump

#29
20110286840
2011-11-24

Liquid ring pump with liner

#30
20110194950
2011-08-11

EFFICIENCY IMPROVEMENTS FOR LIQUID RING PUMPS

#31
20110129355
2011-06-02

Method for controlling the vacuum generator(s) in a vacuum sewage system

#32
20110052390
2011-03-03

SLUDGE REACTOR PUMP FOR SIMULTANEOUSLY CONVEYING SOLIDS, LIQUIDS, VAPOURS AND GASES

#33
20100061908
2010-03-11

Gas abatement

#34
20080175723
2008-07-24

Vacuum pump with wear adjustment

#35
20080175722
2008-07-24

VACUUM PUMP WITH WEAR ADJUSTMENT

#36
20080038120
2008-02-14

TWO STAGE CONICAL LIQUID RING PUMP HAVING REMOVABLE MANIFOLD, SHIMS AND FIRST AND SECOND STAGE HEAD O-RING RECEIVING BOSS

#37
20070172366
2007-07-26

Screw type liquid ring pump with shaft seal arrangement

#38
20070065298
2007-03-22

Liquid ring pump