ClassID:

143022

F04B41/02 - CPC Classification

Classification description:

Pumping installations or systems specially adapted for elastic fluids having reservoirs

Recent Application in this class:
#1
20260078750
2026-03-19

PISTOL-GRIP STYLE ELECTRIC AIR PUMP TOOLS

#2
20250320972
2025-10-16

COMPRESSOR SYSTEM FOR EVACUATING UTILITY PIPE

#3
20250215873
2025-07-03

METHOD FOR DETERMINING MALFUNCTION OF A LIQUID DRAINAGE PUMP AND RELATED CONTROL DEVICE AND LIQUID DRAINAGE PUMP

#4
20250214079
2025-07-03

Fluid Processing System with High Pressure Pneumatic Syringe Pump

#5
20250129776
2025-04-24

CORDLESS COMPRESSOR

#6
20250082389
2025-03-13

METHODS AND DEVICES FOR USE OF DEGASSED FLUIDS WITH FLUID ENHANCED ABLATION DEVICES

#7
20250075628
2025-03-06

PORTABLE FOOT PUMP OPERATED ELECTRIC POWER SOURCE

#8
20250035104
2025-01-30

SYSTEMS AND METHODS FOR CONTROLLING VEHICLE AIR COMPRESSOR

#9
20250035103
2025-01-30

POWER USAGE PLANNING SYSTEM AND METHOD FOR VEHICLE AIR COMPRESSOR

#10
20250035100
2025-01-30

CORDLESS COMPRESSOR

#11
20250004486
2025-01-02

APPARATUS FOR CONTROLLING POSITIVE AND NEGATIVE PRESSURE OR FLOW IN A FLUIDIC SYSTEM

#12
20240426287
2024-12-26

FLUID CONTROL SYSTEM

#13
20240410348
2024-12-12

Pump-Based Fluid Flow Meter

#14
20240376879
2024-11-14

DEVICE FOR DECOMPRESSION OF A GAS CONTAINER

#15
20240200546
2024-06-20

MEDICAL FLUID THERAPY MACHINE INCLUDING PNEUMATIC PUMP BOX AND ACCUMULATORS THEREFORE

#16
20240159230
2024-05-16

Compressor intake muffler and filter

#17
20240093687
2024-03-21

COMPRESSOR

#18
20240052824
2024-02-15

Cordless compressor

#19
20240026874
2024-01-25

GAS COMPRESSION SYSTEM AND CONTROL METHOD THEREOF

#20
20240026870
2024-01-25

Air compressor with multiple air tank pressure sections

#21
20230417235
2023-12-28

Intelligent controller for a reciprocating air compressor and methods of use thereof

#22
20230414267
2023-12-28

DEVICES AND METHODS FOR REMOTE TEMPERATURE MONITORING IN FLUID ENHANCED ABLATION THERAPY

#23
20230366397
2023-11-16

SYSTEMS AND METHODS FOR OPERATION MODES FOR AN AIR COMPRESSOR

#24
20230354532
2023-11-02

GAS COMPRESSOR

#25
20230258167
2023-08-17

AIR FILTER APPARATUS

#26
20230243346
2023-08-03

Portable air compressor

#27
20230193813
2023-06-22

Method and system for an on board compressor

#28
20230184377
2023-06-15

PRESSURE REGULATION SYSTEM AND METHOD FOR A FLUIDIC PRODUCT HAVING PARTICLES

#29
20230184236
2023-06-15

Cordless compressor

#30
20230064182
2023-03-02

Inflation product with built-in air pump

#31
20230045392
2023-02-09

Compressor system and method for operating a compressor system as a function of the compressed-air demand of an operating state of a vehicle

#32
20230038911
2023-02-09

Air compressor

#33
20230033558
2023-02-02

Air compressor and methods of operation

#34
20230015341
2023-01-19

Methane Retention System

#35
20220364897
2022-11-17

Lifting system for metering a fluid from a container and container for a fluid

#36
20220364679
2022-11-17

Methane Retention System

#37
20220364555
2022-11-17

AIR COMPRESSOR

#38
20220341407
2022-10-27

Method and system for transportating fluid, and device employing system and method

#39
20220333593
2022-10-20

Cordless compressor

#40
20220314938
2022-10-06

COMPRESSOR UNIT

#41
20220196341
2022-06-23

Three section configuration for compressed air energy storage systems

#42
20220136491
2022-05-05

Double-acting reciprocating pump assembly for use in conjunction with a melter

#43
20220120266
2022-04-21

Vapor recovery system and method for packing cases and other gas emitting components

#44
20220099342
2022-03-31

Fuel driven near isothermal compressor

#45
20220074398
2022-03-10

Air compressor

#46
20220065401
2022-03-03

Apparatus and system for gas compression and the method for compression of a gas

#47
20220049687
2022-02-17

Pump having a pressure sensor to displace a known volume of fluid from a reservoir, which stretches and contracts

#48
20220047318
2022-02-17

Methods and devices for use of degassed fluids with fluid enhanced ablation devices

#49
20220042501
2022-02-10

Air compressor

#50
20220036872
2022-02-03

Audio control to mask vehicle component noise

#51
20210379623
2021-12-09

FILTRATION APPARATUS AND METHOD

#52
20210372385
2021-12-02

METHOD OF MOUNTING A BEARING TO AN AIR COMPRESSOR, AND AIR COMPRESSOR HAVING A BEARING MOUNTED BY THE METHOD

#53
20210332823
2021-10-28

Controller apparatus and method for a compressed air system

#54
20210316577
2021-10-14

Dual air compressor for hybrid vehicles

#55
20210293231
2021-09-23

Air compressor

#56
20210262460
2021-08-26

Inflatable pump

#57
20210231114
2021-07-29

Compressor intake muffler and filter

#58
20210207586
2021-07-08

Construction elements and maintenance methods for compressed air energy storage systems

#59
20210164618
2021-06-03

Method for controlling compression system, compression system, and hydrogen station

#60
20210148351
2021-05-20

Compressor control systems and air compressor systems and vehicles equipped therewith

#61
20210131414
2021-05-06

Machine tool system having compact air compressor

#62
20210108632
2021-04-15

Air pressure system

#63
20210108629
2021-04-15

Dual motor compressor

#64
20210079905
2021-03-18

Method of reducing air compressor noise

#65
20210071813
2021-03-11

Pressure regulation system and method for a fluidic product having particles

#66
20210071660
2021-03-11

Air compressor

#67
20210048016
2021-02-18

Industrial control system for distributed compressors

#68
20200408203
2020-12-31

Diaphragm compressor, cooling unit, projector, recording apparatus, and three-dimensional modeled object manufacturing apparatus

#69
20200400137
2020-12-24

Agricultural work vehicle having air supply device

#70
20200325890
2020-10-15

Air compressor

#71
20200325889
2020-10-15

Utilizing analytical models to identify wells in which to install plunger lift for improved well production

#72
20200263681
2020-08-20

Air compressor system control

#73
20200240404
2020-07-30

Cart with capacity to internally store compressed air

#74
20200208623
2020-07-02

Pneumatic Motor Comprising Active Stroke-Switching System

#75
20200173434
2020-06-04

Air compressor

#76
20200158142
2020-05-21

Multiport pumps with multi-functional flow paths

#77
20200158102
2020-05-21

Compressor valve and filter arrangement

#78
20200138502
2020-05-07

Devices and methods for remote temperature monitoring in fluid enhanced ablation therapy

#79
20200113614
2020-04-16

Methods and devices for controlling ablation therapy

#80
20200072207
2020-03-05

Belt guard comprising a compressor silencer

#81
20200060065
2020-02-27

Filter system for an agricultural implement

#82
20200056602
2020-02-20

Air compressor

#83
20200032801
2020-01-30

Method for operation control of compressor and the compressor

#84
20200003365
2020-01-02

HYDROGEN GAS COMPRESSING SYSTEM AND HYDROGEN GAS COMPRESSION METHOD

#85
20200003202
2020-01-02

Method and system for metering fluid flow from a fluid source based on a count of pump strokes

#86
20200000986
2020-01-02

Apparatus and method for evacuating a system

#87
20190346154
2019-11-14

Method and device for saving heat energy and water in a sanitary facility

#88
20190344455
2019-11-14

Compressed air-based autonomous power generation system for stand-alone industrial robot jigs

#89
20190338763
2019-11-07

Portable air compressor

#90
20190309745
2019-10-10

Screw Compressor for a Utility Vehicle

#91
20190290349
2019-09-26

Methods and devices for use of degassed fluids with fluid enhanced ablation devices

#92
20190285065
2019-09-19

Air compressor

#93
20190284995
2019-09-19

System for energy storage and recovery

#94
20190277276
2019-09-12

Air compressor and methods of operation

#95
20190247885
2019-08-15

Filtration apparatus and method

#96
20190234370
2019-08-01

Producing compressed air from ocean waves

#97
20190219044
2019-07-18

AIR COMPRESSOR AND METHOD OF OPERATION

#98
20190193349
2019-06-27

Combination structure for a hose connected between an air compressor and a tire

#99
20190181718
2019-06-13

Electrical device and method having an electrical cord set convertible between different electrical amperage ratings

#100
20190162174
2019-05-30

Method of mounting a bearing to an air compressor, and air compressor having a bearing mounted by the method

#101
20190154028
2019-05-23

Pumping installation comprising a pneumatic pump and a valve for regulating supply of the pump with compressed gas

#102
20190128255
2019-05-02

Air pump device

#103
20190126214
2019-05-02

Dispensing system

#104
20190120222
2019-04-25

Cordless compressor

#105
20190107126
2019-04-11

Near Isothermal Gas Compression

#106
20190056156
2019-02-21

Accumulator fixing device for compressor, and air-conditioning apparatus including same

#107
20190055935
2019-02-21

Reciprocating compressor and control method therefor

#108
20190048865
2019-02-14

Piston compressor with enlarged regulating region

#109
20190041003
2019-02-07

GAS SUPPLY DEVICE AND METHOD FOR STOPPING OPERATION OF GAS SUPPLY DEVICE

#110
20190017498
2019-01-17

Piston Compressor with a Closing Device for the Outlet Line

#111
20190003384
2019-01-03

COMPRESSED AIR ENERGY STORAGE AND RECOVERY

#112
20180372081
2018-12-27

Pumping system

#113
20180371908
2018-12-27

Paired air pressure energy power system and power method thereof

#114
20180363463
2018-12-20

Paired Air Pressure Energy Production System and Production Method

#115
20180355721
2018-12-13

Paired air pressure energy storage device, inspection method and balance detection mechanism thereof

#116
20180347327
2018-12-06

Lift apparatus for driving a downhole reciprocating pump

#117
20180340528
2018-11-29

Hand pump with detachable air storage tank

#118
20180340525
2018-11-29

Hand air pump with air accumulation function

#119
20180340524
2018-11-29

Hand pump with air storage tank

#120
20180320677
2018-11-08

AIR COMPRESSOR

#121
20180320676
2018-11-08

AIR COMPRESSOR

#122
20180314288
2018-11-01

Trigger guard and pendant for a portable hydraulic power unit

#123
20180313350
2018-11-01

Solenoid valve for a portable hydraulic power unit

#124
20180313344
2018-11-01

Portable hydraulic power unit having a pump fixed to an exterior side of a fluid supply tank

#125
20180313342
2018-11-01

Portable hydraulic power unit

#126
20180274726
2018-09-27

Gas supply system and hydrogen station

#127
20180266408
2018-09-20

Air pump including storage tank including outlet port adapted to be opened/closed automatically

#128
20180256791
2018-09-13

Reduced-pressure device

#129
20180230983
2018-08-16

Compressor intake muffler and filter

#130
20180223833
2018-08-09

Air pump including air reservoir including outlet port adapted to be opened/closed automatically

#131
20180223832
2018-08-09

Air compressing apparatus and control method

#132
20180223825
2018-08-09

RECIPROCATING COMPRESSOR AND METHOD OF MANUFACTURING A RECIPROCATING COMPRESSOR

#133
20180216609
2018-08-02

Refrigeration compressor having an outer-rotor type motor with the stator fixed to a member fixed to a cylinder block

#134
20180185083
2018-07-05

Methods and devices for controlling ablation therapy

#135
20180172005
2018-06-21

Electronically-controlled compressed air system

#136
20180119995
2018-05-03

Air compressor system including a refrigerated dryer and a condensate harvester and water supply

#137
20180119687
2018-05-03

Air compressor

#138
20180117233
2018-05-03

Medical fluid therapy machine including pneumatic pump box and accumulators therefore

#139
20180112657
2018-04-26

System and method for controlling moisture within an air compressor assembly

#140
20180106247
2018-04-19

Method of determining output flow rate of gas output by flow rate controller of substrate processing apparatus

#141
20180080441
2018-03-22

Method and system for multi-stage compression of a gas using a liquid

#142
20180073495
2018-03-15

Compressor housing having sound control chambers

#143
20180066660
2018-03-08

System and method for portable battery back-up sump pump

#144
20180058434
2018-03-01

Air compressor

#145
20180011012
2018-01-11

Method for dispensing a product from a container

#146
20180009304
2018-01-11

Turbojet automobile

#147
20180003122
2018-01-04

System and method for a compressor

#148
20170363075
2017-12-21

Energy-saving single-dimensional compressor

#149
20170356431
2017-12-14

SYSTEM AND METHOD FOR MULTI-LEVEL VACUUM GENERATION AND STORAGE

#150
20170333107
2017-11-23

Devices and methods for shaping therapy in fluid enhanced ablation

#151
20170326570
2017-11-16

Dispensing device for agricultural sprayer

#152
20170321526
2017-11-09

Lift apparatus for driving a downhole reciprocating pump

#153
20170274720
2017-09-28

Vehicle-height control system and pressure source device

#154
20170261007
2017-09-14

Hand pump with air storage tank

#155
20170218965
2017-08-03

Load/unload control method for compressor system

#156
20170218964
2017-08-03

Control method for compressor system

#157
20170204848
2017-07-20

Air compressor

#158
20170204845
2017-07-20

Air compressor

#159
20170204844
2017-07-20

Air compressor

#160
20170204843
2017-07-20

Air compressor

#161
20170190322
2017-07-06

AIR COMPRESSOR AND RESERVIOIR FOR TOPPING OFF LOW PRESSURE TIRES

#162
20170158018
2017-06-08

Air source device

#163
20170146002
2017-05-25

Cord management system for a portable air compressor

#164
20170146001
2017-05-25

Gas compression device

#165
20170146000
2017-05-25

Gas compression system and method of compressing gas using the gas compression system

#166
20170106115
2017-04-20

No-drip volatile substance delivery system

#167
20170101985
2017-04-13

Oil lubricated compressor

#168
20170082123
2017-03-23

Near isothermal combined compressed gas/pumped-hydro electricity storage with waste heat recovery capabilities

#169
20170037844
2017-02-09

Air compressor

#170
20170037842
2017-02-09

Air compressor

#171
20170023181
2017-01-26

HYDROGEN COMPRESSOR AND HYDROGEN FILLING SYSTEM

#172
20170002804
2017-01-05

COMPRESSOR SYSTEM FOR A RAIL VEHICLE AND METHOD FOR OPERATING THE COMPRESSOR SYSTEM WITH SAFE EMERGENCY OPERATION

#173
20160377229
2016-12-29

Pressure vessel

#174
20160377075
2016-12-29

Compressor system and method for operating the compressor system in dependence on the current situation of the rail vehicle

#175
20160354794
2016-12-08

Method for dispensing a product from a container

#176
20160348840
2016-12-01

Gas supply system and hydrogen station

#177
20160341188
2016-11-24

A COMPRESSED NATURAL GAS SYSTEM AND METHOD

#178
20160341186
2016-11-24

Hydraulic double-acting hand pump

#179
20160341124
2016-11-24

Lubrication system for a reconfigurable gas turbine engine

#180
20160319813
2016-11-03

Two piece pump rod

#181
20160319809
2016-11-03

Compressor

#182
20160311420
2016-10-27

Compressor system and method for operating the compressor system in dependence on the operating state of the rail vehicle

#183
20160298618
2016-10-13

Compressor intake muffler and filter

#184
20160290562
2016-10-06

Compressor unit and gas supply apparatus

#185
20160290329
2016-10-06

Portable air compressor

#186
20160265530
2016-09-15

Air compressor system and method of operation

#187
20160238000
2016-08-18

Air inlet control for air compressor

#188
20160222961
2016-08-04

Barrel assembly for a fluid pump having separate plunger bore and outlet passage

#189
20160201665
2016-07-14

Gas control device

#190
20160186757
2016-06-30

Compressor with a closed loop water cooling system

#191
20160186756
2016-06-30

Compressor system with variable blowdown control

#192
20160138578
2016-05-19

AIR COMPRESSOR ASSEMBLY HAVING A CONDENSATE MANAGEMENT SYSTEM

#193
20160102661
2016-04-14

Air compressor

#194
20160097383
2016-04-07

Air compressor

#195
20160097381
2016-04-07

Method and system for multi-stage compression of a gas using a liquid

#196
20160097379
2016-04-07

Air compressor

#197
20160090973
2016-03-31

Air compressor

#198
20160079830
2016-03-17

Compressed air energy storage unit with induction pump and method for the production of such a compressed air energy storage unit

#199
20160053441
2016-02-25

Pneumatic roadway energy recovery system

#200
20160039632
2016-02-11

Hose reel mounting kit

#201
20150377230
2015-12-31

Air compressor

#202
20150377226
2015-12-31

Pumping system

#203
20150370265
2015-12-24

Fluid compression system and control device therefor

#204
20150361972
2015-12-17

REFRIGERANT COMPRESSOR SYSTEM

#205
20150337833
2015-11-26

Bicycle air pump

#206
20150330380
2015-11-19

Tank dampening device

#207
20150308425
2015-10-29

Power air compressor

#208
20150300343
2015-10-22

Air compressor

#209
20150285237
2015-10-08

Air compressor

#210
20150268202
2015-09-24

Pump Priming Systems

#211
20150267612
2015-09-24

Compressed air energy storage and recovery

#212
20150247494
2015-09-03

Method and system for a hydraulic cylinder

#213
20150246490
2015-09-03

Compressor system, and puncture repair kit using same

#214
20150233364
2015-08-20

AIR COMPRESSOR HAVING A REMOVABLE AIR TANK

#215
20150231656
2015-08-20

Pump suction/expulsion for liquids and gases versatile

#216
20150214815
2015-07-30

Energy-accumulation apparatus

#217
20150184668
2015-07-02

Air compressor with audible alarm device

#218
20150165078
2015-06-18

Compressor with an internal disinfecting UV light source

#219
20150152857
2015-06-04

Compressor housing having sound control chambers

#220
20150139839
2015-05-21

Scotch yoke arrangement

#221
20150078935
2015-03-19

Air compressor with improved cooling performance

#222
20150078920
2015-03-19

Air compressor

#223
20150059861
2015-03-05

Integrated compressor reel and tank assembly

#224
20150030473
2015-01-29

Compressor intake muffler and filter

#225
20150017019
2015-01-15

Mobile hydraulic generator and control method thereof

#226
20150016962
2015-01-15

Tank dampening device

#227
20150016953
2015-01-15

Tank dampening device

#228
20140369858
2014-12-18

Device and method for preparing liquified natural gas (LNG) fuel

#229
20140369853
2014-12-18

Control for engine driven compressor

#230
20140334947
2014-11-13

FLUID PUMP SYSTEM

#231
20140216578
2014-08-07

Compressed air supply apparatus

#232
20140190152
2014-07-10

SYSTEMS AND METHODS FOR COMPRESSING AND/OR EXPANDING A GAS UTILIZING A BI-DIRECTIONAL PISTON AND HYDRAULIC ACTUATOR

#233
20140186193
2014-07-03

Air compressor

#234
20140069826
2014-03-13

Wheeled kit for battery-powered back-up sump pump

#235
20130307269
2013-11-21

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#236
20130294943
2013-11-07

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#237
20130294935
2013-11-07

System and method for a compressor

#238
20130294934
2013-11-07

System and method for a compressor

#239
20130291960
2013-11-07

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#240
20130287593
2013-10-31

Transmission fluid exchange machine

#241
20130276440
2013-10-24

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#242
20130259719
2013-10-03

Air compressor having mechanical govenor with engine speed relief

#243
20130177452
2013-07-11

Multi-pressure gas compressor having simultaneous running and charging systems

#244
20130065503
2013-03-14

Air Ducting Shroud For Cooling An Air Compressor Pump And Motor

#245
20130064689
2013-03-14

Method of reducing air compressor noise

#246
20130064643
2013-03-14

Tank dampening device

#247
20130064642
2013-03-14

Tank dampening device

#248
20130064641
2013-03-14

Air ducting shroud for cooling an air compressor pump and motor

#249
20130062141
2013-03-14

Compressor intake muffler and filter

#250
20130062140
2013-03-14

Compressor housing having sound control chambers

#251
20130042605
2013-02-21

Air compressor

#252
20120321488
2012-12-20

PORTABLE AIR COMPRESSOR

#253
20120308409
2012-12-06

Pump based fluid flow meter

#254
20120294730
2012-11-22

SYSTEM AND METHOD FOR PROVIDING COMPRESSED AIR FROM AN ENGINE

#255
20120285153
2012-11-15

Drive System for Electric Vehicles

#256
20120282114
2012-11-08

AIR PUMP

#257
20120277737
2012-11-01

DEVICES AND METHODS FOR REMOTE TEMPERATURE MONITORING IN FLUID ENHANCED ABLATION THERAPY

#258
20120269651
2012-10-25

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#259
20120265276
2012-10-18

Devices and methods for shaping therapy in fluid enhanced ablation

#260
20120265200
2012-10-18

Methods and devices for controlling ablation therapy

#261
20120265199
2012-10-18

Methods and devices for use of degassed fluids with fluid enhanced ablation devices

#262
20120265190
2012-10-18

Methods and devices for heating fluid in fluid enhanced ablation therapy

#263
20120260645
2012-10-18

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#264
20120257992
2012-10-11

Air compressor

#265
20120251346
2012-10-04

Air compressor

#266
20120222424
2012-09-06

Compressor and expander device with pressure vessel divider baffle and piston

#267
20120118137
2012-05-17

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#268
20120096845
2012-04-26

Systems and methods for compressing and/or expanding a gas utilizing a bi-directional piston and hydraulic actuator

#269
20120057996
2012-03-08

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#270
20120055147
2012-03-08

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#271
20120042772
2012-02-23

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#272
20120023919
2012-02-02

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#273
20120017580
2012-01-26

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#274
20110314804
2011-12-29

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#275
20110290354
2011-12-01

Compressible Fluid Discharge Muffler

#276
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Air compressor system and method of operation

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Air pump

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Air compressor system and method of operation

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Air compressor system and method of operation

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Combination pressure switch with manual shutoff

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Vessel Compressor Methods and Systems

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Air compressor

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Portable air compressor

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Air compressor

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Scotch yoke arrangement

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Device and method for preparing liquefied natural gas (LNG) fuel

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Method and device for supplying a compressor in an internal combustion engine with compressed air

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Compressor with an internal disinfecting UV light source

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Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

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Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

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Selector valve for shortening management system

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Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

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Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

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Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

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Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

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Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

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Portable air compressor

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AIR RECEIVER TANK WITH REMOVABLE TOP PLATES

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Adaptor for an air compressor and an air compressor

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Portable air compressor assembly and associated method