F04C2220/20 - CPC Classification Index

ClassID:

143774 ⎘

F04C2220/20 - CPC Classification

Classification description:

Application Pumps with means for separating and evacuating the gaseous phase

Recent Application in this class:

20240271618

2024-08-15

Energy transfer machine for corrosive fluids

20230272794

2023-08-31

Energy transfer machine for corrosive fluids

20190162182

2019-05-30

Gear pump that removes air from pumped oil

20180333658

2018-11-22

Mud pump and vacuum gas extraction system

20170268512

2017-09-21

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

20170259192

2017-09-14

Mud pump and vacuum gas extraction system

20150345495

2015-12-03

Method of converting liquid ring pumps having sealing liquid vents

20150322756

2015-11-12

Subsea multiphase pump or compressor with magnetic coupling and cooling or lubrication by liquid or gas extracted from process fluid

20140119955

2014-05-01

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

#10

20130028752

2013-01-31

Priming of gear pump in alternative attitudes

#11

20120207866

2012-08-16

Double-flow screw spindle machine

#12

20120076671

2012-03-29

METHOD OF CONVERTING LIQUID RING PUMPS HAVING SEALING LIQUID VENTS

#13

20110142740

2011-06-16

Method and system for treatment of malodorous gases emanating from a pulp mill

#14

20110052390

2011-03-03

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

#15

20100104464

2010-04-29

Roots pumps

#16

20060166510

2006-07-27

Semiconductor manufacturing method for die bonding

#17

20060153690

2006-07-13

Hydraulic vane pump

#18

20050214150

2005-09-29

Pump and ink jet printer mounting the pump