ClassID:

144386

F04D29/701 - CPC Classification

Classification description:

Details, component parts, or accessories; Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps

Sub-classes:
Recent Application in this class:
#1
20260117801
2026-04-30

DUST-PROOF AND VIBRATION-PROOF COVER AND METHOD OF MANUFACTURING CONNECTING ELEMENT THEREFOR

#2
20250382921
2025-12-18

FAN EXIT GUIDE VANE THERMAL MANAGEMENT SYSTEM FOR CONVENTIONAL GAS TURBINE ENGINES

#3
20250361879
2025-11-27

REAR-SIDE FILTERING AND INTAKE AIR COMPRESSOR STRUCTURE

#4
20250361875
2025-11-27

FAN WASHABLE WITH WATER

#5
20250296023
2025-09-25

BLOWER FILTER ASSEMBLY

#6
20250163931
2025-05-22

AIR INLET STRUCTURE FOR AN AIR PUMP AND AN AIR PUMP

#7
20250130602
2025-04-24

DEVICES, SYSTEMS, AND METHODS FOR CONTROLLING LIQUID LEVELS USING ISOLATION RESISTANCE

#8
20250075708
2025-03-06

BLOWER ASSEMBLY ENCLOSURE

#9
20250073409
2025-03-06

PAP SYSTEM BLOWER

#10
20250065066
2025-02-27

FLOW GENERATOR

#11
20250035116
2025-01-30

VACUUM PUMP, PROTECTIVE NET, AND CONTACT PART

#12
20250027506
2025-01-23

HANDHELD FAN

#13
20250008887
2025-01-09

DEBRIS LOOSENING COMPONENT FOR LAWN BLOWER

#14
20250003427
2025-01-02

OIL-LUBRICATED VACUUM PUMP WITH IMPROVED OIL SEALING

#15
20240392799
2024-11-28

IMPELLER AND CLEANER EMPLOYING THE SAME

#16
20240191882
2024-06-13

Portable air flow apparatus

#17
20240188778
2024-06-13

DUST COLLECTING ATTACHMENT FOR BLOWER

#18
20240165550
2024-05-23

Filter system and replaceable filter cartridge

#19
20240141907
2024-05-02

VACUUM PUMP AND VACUUM EXHAUST APPARATUS

#20
20240125325
2024-04-18

PAP SYSTEM BLOWER

#21
20240117848
2024-04-11

ATTENUATOR FOR NOISE GENERATED BY A CENTRIFUGAL PUMP

#22
20240102486
2024-03-28

Turbomachine

#23
20240084805
2024-03-14

Bench-top time of flight mass spectrometer

#24
20240060496
2024-02-22

Vacuum pump and control device

#25
20240033396
2024-02-01

Photocatalytic oxidation centrifugal fan

#26
20230258191
2023-08-17

DRY VACUUM PUMP REGENERATION MECHANISM AND DRY VACUUM PUMP REGENERATION METHOD

#27
20230241271
2023-08-03

Handheld Blower Devices, Systems, and Components, and Related Methods

#28
20230220848
2023-07-13

VACUUM PUMP AND VACUUM PUMP CLEANING SYSTEM

#29
20230213044
2023-07-06

Vacuum pump

#30
20230099377
2023-03-30

Flow generator

#31
20230097903
2023-03-30

VACUUM PUMP

#32
20230092701
2023-03-23

Corrosion-resistant air preheater capable of slowing down dust deposit

#33
20220341440
2022-10-27

Gas compressor cleaning

#34
20220325718
2022-10-13

TURBOMOLECULAR VACUUM PUMP

#35
20220282874
2022-09-08

Portable air flow apparatus

#36
20220281293
2022-09-08

BLOWER AND FILTER DEVICE

#37
20220280893
2022-09-08

Filter system and replaceable filter cartridge

#38
20220268285
2022-08-25

Housing for a centrifugal compressor

#39
20220252082
2022-08-11

Centrifugal blower

#40
20220243614
2022-08-04

System and methods for selective cleaning of turbine engine components

#41
20220220974
2022-07-14

Blower

#42
20220186734
2022-06-16

Turbomolecular pump and cathode assembly for etching reactor

#43
20220144454
2022-05-12

Contamination accumulation modeling

#44
20220096703
2022-03-31

Photocatalytic oxidation centrifugal fan

#45
20220016448
2022-01-20

REMOVABLE MASK AIRFLOW DEVICE

#46
20210388840
2021-12-16

Vacuum pump and vacuum pump component

#47
20210381529
2021-12-09

Compressor ported shroud with particle separator

#48
20210379415
2021-12-09

Mask apparatus

#49
20210355966
2021-11-18

VACUUM PUMP, PROTECTIVE NET, AND CONTACT PART

#50
20210254635
2021-08-19

SYSTEM FOR HYDROCARBON RECOVERY

#51
20210254634
2021-08-19

Fan with cover plate on the rotor bell

#52
20210222695
2021-07-22

BATTERY POWERED AIR MOVER

#53
20210207608
2021-07-08

Bench-top time of flight mass spectrometer

#54
20210190079
2021-06-24

GAS SUPPLY APPARATUS

#55
20210187333
2021-06-24

Blower device for a respiratory protection system

#56
20210146290
2021-05-20

Filter assembly for separating liquid from compressed gas and compressor comprising such filter assembly

#57
20210052125
2021-02-25

ELECTRIC BLOWER, VACUUM CLEANER, AND HAND DRYER

#58
20210039973
2021-02-11

Separable outer enclosure for turbo blower

#59
20210039027
2021-02-11

VENTILATION DEVICE FOR FILTERING AIR AND FOR SEPARATING WATER AEROSOLS OUT OF THE AIR

#60
20210025326
2021-01-28

Inlet bleed heat system for use in a turbine engine

#61
20210018003
2021-01-21

Vacuum pump exhaust system, vacuum pump provided for vacuum pump exhaust system, purge gas supply unit, temperature sensor unit, and exhausting method of vacuum pump

#62
20200370443
2020-11-26

System and methods for selective cleaning of turbine engine components

#63
20200343566
2020-10-29

Side-channel compressor for a fuel cell system for conveying and/or compressing a gaseous medium

#64
20200332811
2020-10-22

Vacuum pump, and stator component, discharge port, and control means used therein

#65
20200316508
2020-10-08

Multi-station debris separation system

#66
20200271132
2020-08-27

Vacuum pump, and blade component, rotor, and stationary blade used therein

#67
20200197955
2020-06-25

COMPRESSOR CENTRIFUGAL FILTER DISC AND ASSEMBLY

#68
20200197849
2020-06-25

Filter system and replaceable filter cartridge

#69
20200129909
2020-04-30

Air purifier including bi-directional fans having different discharge directions

#70
20200101946
2020-04-02

Vacuum cleaner assembly

#71
20200063757
2020-02-27

Compact compressor intake system and method

#72
20200049069
2020-02-13

Scavenge methodologies for turbine engine particle separation concepts

#73
20200032818
2020-01-30

Systems and methods for turbine engine particle separation

#74
20190263224
2019-08-29

Combustion air blower

#75
20190186381
2019-06-20

INTERGRATED ENVIRONMENTAL CONTROL SYSTEM MANIFOLD

#76
20190136870
2019-05-09

Waterproof structure of wall-mounted fan housing

#77
20190127098
2019-05-02

Portable air extracting device

#78
20190093568
2019-03-28

Contamination accumulation modeling

#79
20190085852
2019-03-21

Modular fan assembly

#80
20190072099
2019-03-07

Single-knob air pump

#81
20190055962
2019-02-21

Centrifugal rotary machine

#82
20190027996
2019-01-24

Electric machine with auxiliary blower mounting arrangement and/or modular exhaust assembly

#83
20190003387
2019-01-03

Inlet bleed heat system for use in a turbine engine

#84
20180372121
2018-12-27

Multi-stage centrifugal compressor

#85
20180355751
2018-12-13

System and methods for selective cleaning of turbine engine components

#86
20180340434
2018-11-29

Gas turbine with a radial-to-axial intake, variable-angle inlet guide vane therefore, and method of operation

#87
20180283404
2018-10-04

Reactor loop fouling monitor for rotating equipment in a petrochemical plant or refinery

#88
20180274556
2018-09-27

Center ring and vacuum pump

#89
20180195738
2018-07-12

Ventilation system and method for controlling the same

#90
20180073513
2018-03-15

Method for inspecting rotary machine, and rotary machine

#91
20180073512
2018-03-15

Assembly having two compressors, method for retrofitting

#92
20180058459
2018-03-01

Flow rectifier of a fan

#93
20180058457
2018-03-01

GAS SUPPLY APPARATUS

#94
20180038389
2018-02-08

COMPRESSOR SYSTEM, AND ATTACHMENT STRUCTURE FOR CENTRIFUGAL SEPARATOR

#95
20180023595
2018-01-25

High pressure cyclonic separator for turbomachinery

#96
20180021711
2018-01-25

Multi-station debris separation system

#97
20180017072
2018-01-18

Gas injection blower

#98
20170370381
2017-12-28

Inlet tube design

#99
20170370377
2017-12-28

Centrifugal-compressor casing and centrifugal compressor

#100
20170368916
2017-12-28

METHOD AND SYSTEM FOR PREVENTING VEHICULAR MOLDING AND AVOIDING MOLD SMELL

#101
20170356331
2017-12-14

ELECTRIC COMPRESSOR

#102
20170350397
2017-12-07

Method for controlling a gas supply to a vacuum pump

#103
20170306984
2017-10-26

Air warmer

#104
20170298958
2017-10-19

Heating device and turbo molecular pump

#105
20170298945
2017-10-19

Compressor vane or blade for engine with exfoliating coating

#106
20170284226
2017-10-05

Turbine engine designs for improved fine particle separation efficiency

#107
20170239603
2017-08-24

Ash-collecting and exhaust device for grain dryer

#108
20170234332
2017-08-17

Auxiliary shaft seal flushing system of a centrifugal pump and an axial flow pump

#109
20170234328
2017-08-17

Ceiling fan with moisture protection features

#110
20170227017
2017-08-10

Electrically driven pump

#111
20170218961
2017-08-03

AIR CIRCULATION FAN

#112
20170198724
2017-07-13

COMPRESSOR SYSTEM, SUBSEA PRODUCTION SYSTEM PROVIDED THEREWITH, AND COMPRESSOR CLEANING METHOD

#113
20170191503
2017-07-06

Inlet particle separator system with high curvature hub

#114
20170159660
2017-06-08

Compression device

#115
20170152792
2017-06-01

Supercharging device for a combustion engine

#116
20170145826
2017-05-25

De-oiler balance weights for turbomachine rotors and systems for removing excess oil from turbomachine rotors

#117
20170122329
2017-05-04

Air conditioner

#118
20170114663
2017-04-27

Method and device for cleaning a jet engine

#119
20170058695
2017-03-02

Cooling hole cleaning method

#120
20170044991
2017-02-16

Integrated environmental control system manifold

#121
20170023024
2017-01-26

Cooling fan with moving baffle

#122
20170002821
2017-01-05

System for measuring air mass flow into a gas turbine

#123
20160327065
2016-11-10

ROTOR DRUM FOR A TURBOMACHINE AND COMPRESSOR

#124
20160327052
2016-11-10

Composite splitter lip for axial turbomachine compressor

#125
20160326957
2016-11-10

Combined stability and customer bleed with dirt, water and ice rejection

#126
20160326877
2016-11-10

Rotor arrangement for a turbomachine and compressor

#127
20160296088
2016-10-13

Vacuum device for collecting light and heavy material

#128
20160290362
2016-10-06

Compressor or Gas Extraction System

#129
20160281744
2016-09-29

Blower provided with structure suppressing damage to shaft seal

#130
20160281601
2016-09-29

Turbomachinery inlet screen

#131
20160273554
2016-09-22

Blower unit of air conditioner for vehicle

#132
20160258439
2016-09-08

Method for controlling a motor for a fan in a heat exchanger, control apparatus for a fan and heat exchanger

#133
20160245290
2016-08-25

Double suction pump with agitators

#134
20160228806
2016-08-11

Device for circulating a gas in a closed circuit

#135
20160186780
2016-06-30

Drain holes in ram air fan housing

#136
20160186757
2016-06-30

Compressor with a closed loop water cooling system

#137
20160186756
2016-06-30

Compressor system with variable blowdown control

#138
20160175754
2016-06-23

Method of filtering particulates from the air using a composite filter substrate comprising a mixture of fibers

#139
20160169250
2016-06-16

Pump device

#140
20160153471
2016-06-02

Turbo compressor and turbo refrigerating machine

#141
20160108930
2016-04-21

Gas guiding device and facility including the same

#142
20160102675
2016-04-14

Efficient vacuum cleaner fan inlet

#143
20160090989
2016-03-31

Blower filter system

#144
20160076545
2016-03-17

System and method for sidestream mixing

#145
20160076353
2016-03-17

Oil filtration system for subsea oil-filled machines

#146
20160040679
2016-02-11

Method for measuring air volume of blower motor

#147
20150361870
2015-12-17

Air charging apparatus driven by rotating magnetic field

#148
20150345515
2015-12-03

TURBOCHARGER

#149
20150335921
2015-11-26

Compact scroll fan assembly

#150
20150308460
2015-10-29

Inlet tube design

#151
20150308459
2015-10-29

Gas takeoff isolation system

#152
20150308458
2015-10-29

Screw compressor

#153
20150247508
2015-09-03

Blower Housing Having Integral Exhaust Blower Discharge Drain Section

#154
20150219107
2015-08-06

SUCTION UNIT FOR MOBILE WORK EQUIPMENT AND DEVICES

#155
20150211548
2015-07-30

Motor

#156
20150204353
2015-07-23

Vacuum pump protection net, method for manufacturing the same, and vacuum pump

#157
20150184664
2015-07-02

Rotary machine

#158
20150167689
2015-06-18

Turbo compressor and turbo refrigerator

#159
20150108364
2015-04-23

Charged particle emission device and air-blowing device

#160
20150056069
2015-02-26

Rotary machine

#161
20140348649
2014-11-27

Ceiling fan with moisture protection features

#162
20140322003
2014-10-30

Turbocharger

#163
20140271166
2014-09-18

Low power and low noise fan-scroll with multiple split incoming air-streams

#164
20140251719
2014-09-11

Sound attenuator of an exhaust-gas turbocharger

#165
20140241850
2014-08-28

Air particle separator

#166
20140169944
2014-06-19

Debris filter for motor cooling inlet on ram air fan

#167
20140169939
2014-06-19

Air filter attachment for side channel compressor

#168
20140144848
2014-05-29

Vortex air inlet system, compressor system and related method

#169
20140140805
2014-05-22

Inducer guide vanes

#170
20140069095
2014-03-13

Engine system having intake conduit with surge inhibitor and method

#171
20140003930
2014-01-02

Centrifugal compressor

#172
20130315729
2013-11-28

Upblast Exhaust Apparatus With A Variable Outlet Nozzle

#173
20130272864
2013-10-17

Centrifugal compressor

#174
20130243583
2013-09-19

Vacuum pump

#175
20130230384
2013-09-05

Splinter shield for vacuum pump, and vacuum pump with the splinter shield

#176
20130220123
2013-08-29

Distributed aeration system and control architecture

#177
20130195608
2013-08-01

Droplet catcher for centrifugal compressor

#178
20130195606
2013-08-01

Inlet design for a pump assembly

#179
20130186435
2013-07-25

Gas Turbine Compressor Water Wash System

#180
20130180220
2013-07-18

Shrouded particle separator

#181
20130177402
2013-07-11

Heat dissipating fan

#182
20130125567
2013-05-23

Device and method for cool drying

#183
20130097996
2013-04-25

Ram air fan inlet housing

#184
20130033159
2013-02-07

COOLING DEVICE, IN PARTICULAR FOR A CONTROL CABINET

#185
20130002969
2013-01-03

VIDEO PROJECTOR

#186
20120294708
2012-11-22

Apparatus to protect a radon fan from mechanical failure due to damage from falling objects from within the radon mitigation system

#187
20120266593
2012-10-25

Compressor

#188
20120251351
2012-10-04

Gas Compressor Assembly

#189
20120207618
2012-08-16

Cooling fan and housing thereof

#190
20120195740
2012-08-02

Drain Discharge Equipment for Compressor and Gas Turbine System

#191
20120189431
2012-07-26

Compressor arrangement

#192
20120132479
2012-05-31

Blower arrangement

#193
20120118997
2012-05-17

FAN DIVERSION STURCTURE

#194
20120085237
2012-04-12

PASSIVE FAN FILTRATION SYSTEM (PFFS)

#195
20120055335
2012-03-08

DRAIN LIQUID RELIEF SYSTEM FOR A SUBSEA COMPRESSOR AND A METHOD FOR DRAINING THE SUBSEA COMPRESSOR

#196
20110311356
2011-12-22

Suction casing and fluid machine

#197
20110293415
2011-12-01

DRUM FAN

#198
20110293401
2011-12-01

Turbomolecular pump, and particle trap for turbomolecular pump

#199
20110284035
2011-11-24

Method of cleaning turbo pump and chamber/turbo pump clean process

#200
20110211312
2011-09-01

Blower and electric apparatus including the same

#201
20110179763
2011-07-28

Particle separator and debris control system

#202
20110162678
2011-07-07

Reflecting device, communicating pipe, exhausting pump, exhaust system, method for cleaning the system, storage medium storing program for implementing the method, substrate processing apparatus, and particle capturing component

#203
20110150720
2011-06-23

System and method for photocatalytic oxidation air filtration using a substrate with photocatalyst particles powder coated thereon

#204
20110150632
2011-06-23

Fan unit for filter fans

#205
20110142607
2011-06-16

Centrifugal compressor for wet gas environments and method of manufacture

#206
20110116918
2011-05-19

Method and machinery with combined particle separation and flow regulation devices

#207
20110097195
2011-04-28

Heat dissipating fan

#208
20100322785
2010-12-23

Compressor unit including a detection device to identify non-gaseous fluid in the suction line

#209
20100307151
2010-12-09

COMPRESSOR AND METHOD FOR SERVICING

#210
20100290896
2010-11-18

Compressor unit and assembly method

#211
20100236200
2010-09-23

System for inertial particles separation

#212
20100215532
2010-08-26

Vacuum pump

#213
20100139697
2010-06-10

Method for cleaning deposits from turbocharger and supercharger compressors

#214
20100135769
2010-06-03

Filter device

#215
20100071877
2010-03-25

REDUCING ACCUMULATION OF DUST PARTICLES ON A HEAT DISSIPATING ARRANGEMENT

#216
20100037777
2010-02-18

Inlet air conditioning system for a turbomachine

#217
20100021292
2010-01-28

Fluid deflector for fluid separator devices

#218
20100008763
2010-01-14

Turbomachine including an adaptable intake system and method of controlling airflow to a turbomachine

#219
20100005799
2010-01-14

Compressor

#220
20090324430
2009-12-31

Modular compressor unit

#221
20090320690
2009-12-31

SUCTION FILTER, TURBO COMPRESSOR AND METHOD FOR COMPACT ASSEMBLING OF THE SAME

#222
20090320283
2009-12-31

Suction filter, turbocompressor, and method for compact assembling of the same

#223
20090304496
2009-12-10

Rotary separator drum seal

#224
20090180870
2009-07-16

Blower motor flange diverter

#225
20090136336
2009-05-28

Exhaust system and exhausting pump connected to a processing chamber of a substrate processing apparatus

#226
20090129974
2009-05-21

Air quality enhancing ceiling paddle fan

#227
20090126337
2009-05-21

Retrofit dirt separator for gas turbine engine

#228
20090113661
2009-05-07

Hand-held powered suction device

#229
20090107093
2009-04-30

Dust collector

#230
20090097202
2009-04-16

Systems and methods for cleaning filters of an electrical device

#231
20090092484
2009-04-09

Vacuum pump

#232
20090087298
2009-04-02

Compressor and heat pump system

#233
20090044512
2009-02-19

Dirt separator for compressor diffuser in gas turbine engine

#234
20090000300
2009-01-01

Compressor in the intake tract of an internal combustion engine

#235
20080295867
2008-12-04

Method of cleaning turbo pump and chamber/turbo pump clean process

#236
20080286163
2008-11-20

System and method for photocatalytic oxidation air filtration using a substrate with photocatalyst particles powder coated thereon

#237
20080276416
2008-11-13

TUBE BARRIER

#238
20080240910
2008-10-02

Turbo-molecular pump, substrate processing apparatus, and method for suppressing attachment of depositions to turbo-molecular pump

#239
20080240905
2008-10-02

Exhaust pump, communicating pipe, and exhaust system

#240
20080236629
2008-10-02

Cleaning method for turbo molecular pump

#241
20080199311
2008-08-21

BLOWER SCROLL

#242
20080152500
2008-06-26

Inertial particle separator for compressor shroud bleed

#243
20080152480
2008-06-26

Diagonal flow fan

#244
20080139099
2008-06-12

Compressor arrangement and air-conditioning system with compressor arrangement

#245
20080138207
2008-06-12

Inlet plenum for gas turbine engine

#246
20080069686
2008-03-20

Motor and fan device using the same

#247
20080050231
2008-02-28

Ventilation unit

#248
20080038618
2008-02-14

FUEL CELL SYSTEM

#249
20080025847
2008-01-31

Ventilation assembly for wind turbine rotor hub

#250
20070235373
2007-10-11

Diffuser particle separator

#251
20070154302
2007-07-05

Geared inlet guide vane for a centrifugal compressor

#252
20070119145
2007-05-31

Dirt separator for compressor diffuser in gas turbine engine

#253
20070059162
2007-03-15

Trackable, identifiable foreign material exclusion device

#254
20070044656
2007-03-01

Methods and systems for detecting filter rupture

#255
20060257243
2006-11-16

Reflecting device, communicating pipe, exhausting pump, exhaust system, method for cleaning the system, storage medium storing program for implementing the method, substrate processing apparatus, and particle capturing component

#256
20060185334
2006-08-24

Suction filter, turbo compressor, and method of packaging the compressor

#257
20060177307
2006-08-10

Ceiling fan with fragrance dispensing blade

#258
20060147302
2006-07-06

Blower without freezing lock phenomenon and heat exchanging device comprising the blower

#259
20060118049
2006-06-08

Vacuum-generating apparatus and thin film processing apparatus having the same

#260
20060110271
2006-05-25

Foil shield for a vacuum pump with a high-speed rotor

#261
20060045764
2006-03-02

Compressor stage separation system

#262
19203919
2026-01-06

Fan blade assembly with leading edge fillet

#263
17380550
2023-04-18

Blower assembly for a powered air-purifying respirator

#264
15792525
2020-06-09

Electric submersible pump intake system, apparatus, and method