Patents-Review.com
ClassID:

142983 ⎘

F04B39/04 - CPC Classification

Classification description:

Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups - Measures to avoid lubricant contaminating the pumped fluid

Sub-classes:
Recent Application in this class:
#1
20250369443
2025-12-04

SEALING GASKET

 #2
20240301883
2024-09-12

Oil separator for an electric compressor

 #3
20230121207
2023-04-20

Hermetic electric compressor

 #4
20220106952
2022-04-07

Compressor and air-conditioner

 #5
20220088615
2022-03-24

Cyclone separator

 #6
20210404456
2021-12-30

3D-printed oil separation for reciprocating compressors

 #7
20210270271
2021-09-02

Compressor

 #8
20210254712
2021-08-19

Lubrication system for a piston pump

 #9
20210131412
2021-05-06

Scroll compressor of lower compression type enabling active oil supply

 #10
20210023489
2021-01-28

Oil separator and compressed air drying system

 #11
20200284247
2020-09-10

Compressor having intermediate passage capable of conveying accumulated oil to a second compression part and air conditioner including same

 #12
20200230535
2020-07-23

Oil separator

 #13
20200166250
2020-05-28

Refrigerant compressor with gas equalizer duct

 #14
20200072209
2020-03-05

Oil separator for a compressor and compressor assembly comprising said separator

 #15
20200003199
2020-01-02

Compressor

 #16
20190346190
2019-11-14

Compressor and refrigeration cycle apparatus

 #17
20190338788
2019-11-07

Compressor

 #18
20180202425
2018-07-19

Oil separate and collect device

 #19
20180202424
2018-07-19

COMPRESSOR

 #20
20180195505
2018-07-12

Compressor

 #21
20180163871
2018-06-14

Device and method for extending the lifespan of a shaft seal for an open-drive compressor

 #22
20180142591
2018-05-24

Oil separator

 #23
20180023847
2018-01-25

Ejector refrigeration cycle

 #24
20170356418
2017-12-14

Piston Type Expander

 #25
20170350387
2017-12-07

Pressure monitoring apparatus

 #26
20170314815
2017-11-02

Preheater for compressor

 #27
20170246568
2017-08-31

Oil separator and compressed air drying system

 #28
20170209831
2017-07-27

Air drier

 #29
20170182441
2017-06-29

Oil separator, and system for separating oil for vehicle

 #30
20170157558
2017-06-08

Compressed-air drying system

 #31
20170007944
2017-01-12

Oil separator and drain discharge system

 #32
20160136555
2016-05-19

Oil separator, and compressor provided with same

 #33
20160040668
2016-02-11

Shaft seal for an open-drive compressor

 #34
20160011037
2016-01-14

Oil separator

 #35
20160001758
2016-01-07

Oil separator

 #36
20150343365
2015-12-03

Compressor system and oil separation system

 #37
20150337964
2015-11-26

Device and method for extending the lifespan of a shaft seal for an open-drive compressor

 #38
20150330382
2015-11-19

Hermetic rotary compressor

 #39
20150240798
2015-08-27

RECIPROCATING COMPRESSOR

 #40
20150167670
2015-06-18

Compressor

 #41
20150159649
2015-06-11

Refrigerant compressor and refrigeration cycle device

 #42
20150152763
2015-06-04

Oil separator

 #43
20150135961
2015-05-21

Oil separator

 #44
20150052936
2015-02-26

Sealed compressor and vapor compression refrigeration cycle apparatus including the sealed compressor

 #45
20140369871
2014-12-18

Compressor

 #46
20140105762
2014-04-17

Suction muffler for compressor

 #47
20130214635
2013-08-22

Induction motor, compressor, air blower, and air conditioner

 #48
20130209295
2013-08-15

Pump seal

 #49
20130089445
2013-04-11

Variable Capacity Compressor

 #50
20130075405
2013-03-28

Port closing device for compressor

 #51
20130042750
2013-02-21

Piston-type compressor

 #52
20130039792
2013-02-14

Compressor

 #53
20130031929
2013-02-07

Reciprocating refrigeration compressor oil separation

 #54
20130028730
2013-01-31

COMPRESSOR

 #55
20120297818
2012-11-29

Compressor with oil separator and refrigeration device including the same

 #56
20120285559
2012-11-15

Formed seal ring for a liquid gas separating element

 #57
20120269667
2012-10-25

HERMETIC COMPRESSOR

 #58
20120189470
2012-07-26

Compressor

 #59
20120011876
2012-01-19

Discharge muffler and two-stage compressor including the same

 #60
20120007455
2012-01-12

Motor rotor and compressor provided with the same

 #61
20110274575
2011-11-10

COMPRESSOR, IN PARTICULAR A RADIAL PISTON COMPRESSOR FOR CARBON DIOXIDE AS A REFRIGERANT

 #62
20110158840
2011-06-30

Oil recovery member, and motor mechanism and compressor using the same

 #63
20100101269
2010-04-29

COMPRESSOR WITH IMPROVED OIL SEPARATION

 #64
20090214361
2009-08-27

OIL-LESS COMPRESSOR WITH SEAL-DUST PROTECTION

 #65
20090074592
2009-03-19

Compressor and method for operating the same

 #66
20080152519
2008-06-26

GAS-OIL SEPARATOR WITH AN OIL TYPE AIR COMPRESSOR

 #67
20080034783
2008-02-14

Compressor having a drive mechanism and a lubricant separator

 #68
20070177991
2007-08-02

Oil separation structure in compressor

 #69
20070089382
2007-04-26

Reciprocating Compressor and Filter Therefor

 #70
20060222520
2006-10-05

Air compressor oil recirculation system