F04C2/00 - CPC Classification Index

ClassID:

143402 ⎘

F04C2/00 - CPC Classification

Classification description:

Rotary-piston machines or pumps

Sub-classes:

F04C2/02 » of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents 24
F04C2/08 » of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing 84
F04C2/22 » of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member 35
F04C2/24 » of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions 8
F04C2/30 » having the characteristics covered by two or more groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members 10

Recent Application in this class:

20250027495

2025-01-23

LIQUID HYDROCARBON FLUID TRANSFER SYSTEM

20230211521

2023-07-06

Hydraulic system for stripping concrete forms

20220341430

2022-10-27

MOBILE PUMP SYSTEM WITH METERING PUMP AND METHOD THEREFOR

20210215157

2021-07-15

Device for pumping fluid

20210086399

2021-03-25

Hydraulic system for stripping concrete forms

20200392812

2020-12-17

Electric/hydraulic safety valve

20200370549

2020-11-26

Rotary compressor with vane slot disposed at predetermined tilting angle

20200362857

2020-11-19

Rotary compressor with wear avoiding portion

20200291935

2020-09-17

Pressure balancing system for a fluid pump

#10

20190338772

2019-11-07

Flywheel assisted rotary compressors

#11

20190283207

2019-09-19

Screw rotor processing method and screw rotor lead correction calculation device

#12

20190219069

2019-07-18

Motor oil pump assembly, steering system, and vehicle

#13

20190186480

2019-06-20

Closed loop torque compensation for compressor applications

#14

20190145410

2019-05-16

Pump sleeve for integrated drive generator

#15

20180363705

2018-12-20

Bearing arrangement for a mutually turnable unit working under high pressure

#16

20180252234

2018-09-06

Compressor staking arrangement

#17

20180172011

2018-06-21

Multi-piece canister assembly for magnetically coupled fluid handling devices

#18

20170198813

2017-07-13

Mechanical seal

#19

20160003226

2016-01-07

Electric pump apparatus

#20

20150337839

2015-11-26

Scroll compressor with reduced upsetting moment

#21

20150219099

2015-08-06

Rotary-oscillating subassembly and rotary-oscillating volumetric pumping device for volumetrically pumping a fluid

#22

20150111277

2015-04-23

Cell washing device using a wave

#23

20150111195

2015-04-23

Cell washing device using a wave

#24

20150110763

2015-04-23

Cell washing device using a wave

#25

20140345451

2014-11-27

Method and device for fixing and synchronizing rotary pistons in a rotary piston pump

#26

20140341757

2014-11-20

Oil pump for vehicle and vehicle with the same

#27

20140286801

2014-09-25

Pumping device for pumping oil from a storage container to a transmission system of a motor vehicle

#28

20140271301

2014-09-18

Dual axis rotor

#29

20140241928

2014-08-28

Vacuum pump with rotor-stator positioning to provide non-return

#30

20140199201

2014-07-17

Compressor with rotating cam and sliding end vanes

#31

20140134028

2014-05-15

ROTARY VANE EXPANDER

#32

20140076155

2014-03-20

Rotary three dimensional variable volume machine

#33

20130336829

2013-12-19

Rotary piston machine, especially rotary engine

#34

20130309114

2013-11-21

Sliding vane positive displacement pump having a fixed disc configuration to reduce slip paths

#35

20130287557

2013-10-31

Compressor staking arrangement and method

#36

20130280118

2013-10-24

Vane pump

#37

20130276889

2013-10-24

Methods for restricting backflow of solids in a pump assembly

#38

20130259731

2013-10-03

Simple rotation engine with variable compression and high gas flow

#39

20130251584

2013-09-26

Variable displacement pump

#40

20130251581

2013-09-26

Two-spindle pump of single-flow construction

#41

20130251571

2013-09-26

Vane pump

#42

20130216419

2013-08-22

Vane pump

#43

20130216418

2013-08-22

Screw compressor

#44

20130209303

2013-08-15

Scroll compressor with reduced upsetting moment

#45

20130209302

2013-08-15

Oil pump

#46

20130209301

2013-08-15

Radial piston machine and piston for a radial piston machine of this type

#47

20130209300

2013-08-15

ROTARY LOBE PUMP AND ROTARY LOBES

#48

20130189142

2013-07-25

Delivery unit

#49

20130183184

2013-07-18

Rotary engine

#50

20130121863

2013-05-16

Adjustable vane pump for reducing pressure pulsations during discharge

#51

20130108500

2013-05-02

REBUILDABLE CASSETTE ASSEMBLY FOR DISPLACEMENT PUMP

#52

20130089454

2013-04-11

Component having reduced metal adhesion

#53

20130078127

2013-03-28

Vane cell pump with vane plate guide crosspieces and synchronization cylinder

#54

20130071280

2013-03-21

Slurry Pump

#55

20130071274

2013-03-21

VACUUM PUMPING SYSTEM

#56

20110185713

2011-08-04

Air heating apparatus

#57

20080267831

2008-10-30

Submersible pump with UV sterilization device

#58

18435664

2024-09-24

Externally serrated rotary shredder and submersible shredder pump having an externally serrated rotary shredder