F04C21/002 - CPC Classification Index

ClassID:

143638 ⎘

F04C21/002 - CPC Classification

Classification description:

Oscillating-piston pumps specially adapted for elastic fluids the piston oscillating around a fixed axis

Recent Application in this class:

20220034226

2022-02-03

Piston machine, modular construction system for a piston machine, and method for producing a piston machine

20200339439

2020-10-29

Multi-chamber compressor of mechanical vapor re-compression and water treatment methods

20200095995

2020-03-26

LINEAR COMPRESSOR

20200032652

2020-01-30

Rotational displacement apparatus

20190145413

2019-05-16

Gas ejection apparatus

20190145411

2019-05-16

GAS EJECTION APPARATUS

20190145407

2019-05-16

Gas ejection apparatus

20180154869

2018-06-07

Air compressor and extraneous-matter removing apparatus

20180142688

2018-05-24

Rotation device and extraneous-matter removing apparatus

#10

20180045052

2018-02-15

Rotational displacement apparatus

#11

20170333665

2017-11-23

Ventilation apparatus and uses thereof

#12

20170138359

2017-05-18

Piston machine with cooling function

#13

20130084196

2013-04-04

Aggregate, in particular a hybrid engine, electrical power generator or compressor

#14

20110280740

2011-11-17

Ultra-low friction air pump for creating oscillatory or pulsed jets

#15

20110200474

2011-08-18

Integrated pump for compressible fluids

#16

20110064590

2011-03-17

Valve Arrangement for Peripherally Pivoted Oscillating Vane Machine

#17

20080152521

2008-06-26

Ultra-low friction air pump for creating oscillatory or pulsed jets

#18

20070104600

2007-05-10

Oscillating piston pump