Patents-Review.com
ClassID:

144200 ⎘

F04D29/104 - CPC Classification

Classification description:

Details, component parts, or accessories; Sealings; Shaft sealings especially adapted for elastic fluid pumps the sealing fluid being other than the working fluid or being the working fluid treated

Recent Application in this class:
#1
20250389201
2025-12-25

SEAL LEAK GAS RECOVERY SYSTEM USING AN EJECTOR AND METHOD

 #2
20250084863
2025-03-13

HIGH PRESSURE GAS SEALING

 #3
20240133310
2024-04-25

SEAL LEAK GAS RECOVERY SYSTEM USING AN EJECTOR AND METHOD

 #4
20240077083
2024-03-07

High pressure gas sealing

 #5
20230166062
2023-06-01

CONTAMINATION PREVENTION IN THE BLOWER OF A VENTILATOR

 #6
20230003225
2023-01-05

Rotor structure for a turbomachine with venting/sealing arrangement in tie bolt

 #7
20220341429
2022-10-27

MECHANICAL BARRIER FLUID PRESSURE REGULATION FOR SUBSEA SYSTEMS

 #8
20220282602
2022-09-08

SUBMERSIBLE WELL FLUID SYSTEM

 #9
20220213899
2022-07-07

Blower

 #10
20220136517
2022-05-05

Sealing device and integrated pump

 #11
20210355954
2021-11-18

High pressure gas sealing

 #12
20210262482
2021-08-26

Rotary machine

 #13
20200240427
2020-07-30

GAS TURBINE ENGINE AND AIRCRAFT WITH A GAS TURBINE ENGINE

 #14
20200003221
2020-01-02

Shaft seal

 #15
20190195057
2019-06-27

Submersible well fluid system

 #16
20190162193
2019-05-30

Mass-spectrometric leak detector with turbomolecular pump and booster pump on a common shaft

 #17
20190049019
2019-02-14

THRUST BEARING AS A SEAL

 #18
20190003481
2019-01-03

Dry gas seal cooling arrangement and method

 #19
20180266265
2018-09-20

Dry gas seal

 #20
20180231005
2018-08-16

Subsea barrier fluid system

 #21
20180209435
2018-07-26

Centrifugal compressor

 #22
20180209425
2018-07-26

Mechanical barrier fluid pressure regulation for subsea systems

 #23
20180209289
2018-07-26

Machine and method for operating the machine

 #24
20180120007
2018-05-03

Gas recovery system, compressor system, and refrigeration cycle system

 #25
20180058597
2018-03-01

Barrier fluid pressure system and method

 #26
20170370372
2017-12-28

Rotary machine system

 #27
20170363209
2017-12-21

Rotary machine system

 #28
20170191486
2017-07-06

Fluid energy machine having a tandem dry gas seal

 #29
20170184130
2017-06-29

Dry gas extraction device and method

 #30
20160160872
2016-06-09

Turbocharger purge seal including axisymmetric supply cavity

 #31
20160091094
2016-03-31

Porous media ventless seal

 #32
20160090991
2016-03-31

Thrust bearing as a seal

 #33
20160025106
2016-01-28

Method and system for cooling a motor-compressor with a closed-loop cooling circuit

 #34
20150322959
2015-11-12

TURBO MACHINE AND METHOD FOR THE OPERATION THEREOF

 #35
20150159662
2015-06-11

Efficient and reliable subsea compression system

 #36
20140227079
2014-08-14

Midspan active magnetic bearing

 #37
20140050569
2014-02-20

Gas system for compressing a process gas

 #38
20130302184
2013-11-14

Compressor motor windage loss mitigation

 #39
20130195649
2013-08-01

Compressor employing a dry gas seal

 #40
20130022445
2013-01-24

System for reducing compressor oil consumption

 #41
20130011276
2013-01-10

Turbocharger

 #42
20120328418
2012-12-27

Turbocharger with air buffer seal

 #43
20120107143
2012-05-03

Method and system for cooling a motor-compressor with a closed-loop cooling circuit

 #44
20120093643
2012-04-19

MULTISTAGE TURBOCOMPRESSOR

 #45
20120038112
2012-02-16

Flow distributed buffered/educted gas seal

 #46
20110064592
2011-03-17

Underwater delivery unit

 #47
20100254811
2010-10-07

Dry gas blow down seal

 #48
20100212493
2010-08-26

Methods of generating and utilizing utility gas

 #49
20090317265
2009-12-24

Method and apparatus for protection of compressor modules against influx of contaminated gas

 #50
20090291004
2009-11-26

FAN FOR AN APPARATUS FOR THE REGULATED DELIVERY OF A GAS, IN PARTICULAR OXYGEN

 #51
20090274548
2009-11-05

Contaminant-deflector labyrinth seal and method of operation

 #52
20090246004
2009-10-01

Recovery of expander-booster leak gas

 #53
20090140495
2009-06-04

Shaft Seal

 #54
20080260539
2008-10-23

Apparatus and Method For Controlling Supply of Barrier Gas in a Compressor Module

 #55
20080031750
2008-02-07

Turbocharger housing, turbocharger and a multi-turbocharger boosting system

 #56
20070132191
2007-06-14

Device and method for guiding at least two flow media

 #57
20070077142
2007-04-05

Shaft seal for a transmission expander or compressor, and transmission expander or compressor having a shaft seal

 #58
20070065317
2007-03-22

Air blower for a motor-driven compressor

 #59
20060157251
2006-07-20

Subsea compressor module and a method for controlling the pressure in such a subsea compressor module