F04C19/005 - CPC Classification Index

ClassID:

143634 ⎘

F04C19/005 - CPC Classification

Classification description:

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

Sub-classes:

F04C19/007 » {Port members in the form of side plates} 16
F04C19/008 » {Port members in the form of conical or cylindrical pieces situated in the centre of the impeller} 37

Recent Application in this class:

20250361864

2025-11-27

Two-Stage Pump

20250163915

2025-05-22

SYSTEM AND METHOD FOR CLEANING A LIQUID RING PUMP SYSTEM

20240418168

2024-12-19

AIR COMPRESSOR

20240392786

2024-11-28

SEALING SOFT WATER RECOVERY APPARATUS FOR VACUUM PUMP IN VACUUM PRESSURE SWING ADSORPTION OXYGEN GENERATION SYSTEM

20230146497

2023-05-11

Water-ring vacuum pump including built-in hogging flow path

20220268286

2022-08-25

Centrifugal air compressor and control

20210048027

2021-02-18

Liquid ring pump manifold

20210017989

2021-01-21

Liquid ring pump control

20200217318

2020-07-09

Liquid-ring compressor including bypass pipe

#10

20200152485

2020-05-14

To pumping line arrangements

#11

20200141410

2020-05-07

Liquid ring vacuum pump

#12

20190368488

2019-12-05

Fluid Transfer Using Devices with Rotatable Housings

#13

20180209420

2018-07-26

Liquid ring pump

#14

20180207581

2018-07-26

Apparatus for evacuating a corrosive effluent gas stream from a processing chamber

#15

20180003177

2018-01-04

Ring section pump having intermediate tie rod combination

#16

20170276137

2017-09-28

Exhaust bearing seat, screw compressor and air-conditioning unit

#17

20170268512

2017-09-21

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

#18

20160201672

2016-07-14

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

#19

20160185617

2016-06-30

Locally powered water distillation system

#20

20160153453

2016-06-02

Fluid transfer using devices with rotatable housings

#21

20150345495

2015-12-03

Method of converting liquid ring pumps having sealing liquid vents

#22

20150093260

2015-04-02

Liquid ring pump with modular construction, an inter-stage bypass and overload protection

#23

20150030467

2015-01-29

METHOD AND APPARATUS FOR MECHANICALLY HEATING A MIXTURE OF SUBSTANCES

#24

20140119955

2014-05-01

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

#25

20140021029

2014-01-23

Locally powered water distillation system

#26

20130089440

2013-04-11

Liquid ring pump and method for operating a liquid ring pump

#27

20120087808

2012-04-12

LIQUID RING COMPRESSORS FOR SUBSEA COMPRESSION OF WET GASES

#28

20120076671

2012-03-29

METHOD OF CONVERTING LIQUID RING PUMPS HAVING SEALING LIQUID VENTS

#29

20110253929

2011-10-20

MIXTURES OF HYDROPHOBIC AND HYDROPHILIC IONIC LIQUIDS AND USE THEREOF IN LIQUID RING COMPRESSORS

#30

20110243758

2011-10-06

Liquid ring pump with gas scavenge device

#31

20100326812

2010-12-30

Method and apparatus for phase change enhancement

#32

20090185918

2009-07-23

Fluid transfer using devices with rotatable housings

#33

20080133181

2008-06-05

Locally powered water distillation system

#34

20080105532

2008-05-08

Liquid pumps with hermetically sealed motor rotors

#35

20070264145

2007-11-15

SINGLE-STAGE LIQUID-RING VACUUM PUMP HAVING DOUBLE AXIAL INLET

#36

20050238499

2005-10-27

Fluid transfer using devices with rotatable housings

#37

20050183832

2005-08-25

Method and apparatus for phase change enhancement

#38

16864885

2024-02-20

Extending life cycles of vacuum pumps used in manufacturing processes