ClassID:

143013

F04B39/122 - 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 -; Casings; Cylinders; Cylinder heads; Fluid connections Cylinder block

Recent Application in this class:
#1
20260139663
2026-05-21

PACKING SEAL ASSEMBLY

#2
20250347446
2025-11-13

ECONOMIZER INJECTION IN A RECIPROCATING COMPRESSOR

#3
20250305585
2025-10-02

FLUID END WITH CLAMPED RETENTION

#4
20250264095
2025-08-21

PACKING SEAL ASSEMBLY

#5
20250116266
2025-04-10

RECIPROCATING COMPRESSOR

#6
20250020115
2025-01-16

FLUID END OF RECIPROCATING PUMP

#7
20240401579
2024-12-05

Core of dual-motor driven inflatable pump

#8
20240287947
2024-08-29

AIR COMPRESSOR CYLINDER HEAD AND AIR COMPRESSOR

#9
20240262056
2024-08-08

COMPRESSOR SYSTEM FOR A PUNCTURE REPAIR KIT, PUNCTURE REPAIR KIT HAVING SUCH A COMPRESSOR SYSTEM, AND METHOD FOR SEALING A VEHICLE TYRE WITH SUCH A COMPRESSOR SYSTEM

#10
20240218865
2024-07-04

Packing seal assembly

#11
20240209846
2024-06-27

COMPRESSOR AND MANUFACTURING METHOD THEREFOR

#12
20240200657
2024-06-20

FLUID END WITH CLAMPED RETENTION

#13
20240125311
2024-04-18

Fluid transfer and depressurization system

#14
20240125309
2024-04-18

HYDRAULIC FLUID PUMP AND RETAINER ASSEMBLY FOR SAME

#15
20230407915
2023-12-21

RECIPROCATING COMPRESSOR

#16
20230265841
2023-08-24

Sealing assembly for a pump with a leak path

#17
20230151809
2023-05-18

Reciprocating compressor with a jacket around the piston rod

#18
20230048353
2023-02-16

Air compressor with ramped head deck

#19
20230047066
2023-02-16

Packing seal assembly

#20
20230041180
2023-02-09

ECONOMIZER INJECTION IN A RECIPROCATING COMPRESSOR

#21
20220389919
2022-12-08

Compressor

#22
20220389918
2022-12-08

Compressor

#23
20220380110
2022-12-01

Vacuum sealable container with internal pump mechanism

#24
20220372963
2022-11-24

Piston compressor and method for operating same

#25
20220372962
2022-11-24

Packing seal for a piston compressor and method for operating same

#26
20220333588
2022-10-20

Piston of air compressor

#27
20220282720
2022-09-08

Fluid end with clamped retention

#28
20220243720
2022-08-04

Air cylinder

#29
20220235752
2022-07-28

Reciprocating compressor

#30
20220186719
2022-06-16

Linear compressor with a cylinder supported by a support member having bent portions

#31
20220178361
2022-06-09

Linear compressor

#32
20220163033
2022-05-26

Valve stop and suction cover platformed assembly

#33
20220120263
2022-04-21

COMPRESSOR AND HYDROGEN STATION

#34
20220090590
2022-03-24

Linear compressor

#35
20210404455
2021-12-30

Multi-stage compressor

#36
20210404453
2021-12-30

Hydraulic fluid pump and retainer assembly for same

#37
20210388829
2021-12-16

Hydraulic block for a hydraulic unit of a hydraulic vehicle power braking system

#38
20210355924
2021-11-18

Fluid transfer and depressurization system

#39
20210340966
2021-11-04

Compressor head fixing device, compressor and refrigeration device

#40
20210277891
2021-09-09

Axial piston-type hydraulic rotary machine

#41
20210222915
2021-07-22

Linear compressor

#42
20210215148
2021-07-15

METHOD AND EQUIPMENT FOR IMPROVING THE EFFICIENCY OF COMPRESSORS AND REFRIGERATORS

#43
20210215145
2021-07-15

Compressor

#44
20210215143
2021-07-15

Motor assembly and reciprocation compressor including motor assembly

#45
20210215127
2021-07-15

METHOD FOR MANUFACTURING ASSEMBLY, PARTS SET, METHOD FOR MANUFACTURING FUEL INJECTION PUMP, AND FUEL INJECTION PUMP

#46
20210164463
2021-06-03

AIR COMPRESSOR CYLINDER, AIR COMPRESSOR, VEHICLE SEAT, AND VEHICLE

#47
20210123427
2021-04-29

Plate fin heat exchanger for pump assembly

#48
20210123426
2021-04-29

HERMETIC REFRIGERANT COMPRESSOR AND REFRIGERATOR-FREEZER USING THE SAME

#49
20210108627
2021-04-15

Hermetic compressor having discharge muffler

#50
20210102535
2021-04-08

Horizontal gas compressor with free lifting piston

#51
20210095655
2021-04-01

Linear compressor

#52
20210095653
2021-04-01

Linear compressor

#53
20210079949
2021-03-18

Compressor having curved connecting rods

#54
20210079908
2021-03-18

RECIPROCATING COMPRESSOR WITH IMPROVED VALVE CYLINDER ASSEMBLY

#55
20210062798
2021-03-04

Sealed refrigerant compressor and refrigeration device

#56
20210061536
2021-03-04

Vacuum sealable container with internal pump mechanism

#57
20210054833
2021-02-25

Linear compressor

#58
20200400132
2020-12-24

Reciprocating pump

#59
20200395836
2020-12-17

Linear motor and linear compressor having same

#60
20200332785
2020-10-22

Two stage air compressor

#61
20200291928
2020-09-17

Hydraulic fluid pump and retainer assembly for same

#62
20200240403
2020-07-30

Reciprocating piston machine with cooling device

#63
20200149518
2020-05-14

Linear compressor

#64
20200141399
2020-05-07

Lattice-cored additive manufactured compressor components with fluid delivery features

#65
20200124037
2020-04-23

Compressor including cylinder block corresponding to outer rotor type motor

#66
20200080553
2020-03-12

Linear compressor

#67
20200011312
2020-01-09

Cylinder assemble structure for compact air compressor

#68
20200003454
2020-01-02

Linear compressor

#69
20200003201
2020-01-02

Linear compressor

#70
20200003198
2020-01-02

Reciprocating compressor

#71
20190376501
2019-12-12

Cylinder head assembly for reciprocating compressor

#72
20190353306
2019-11-21

Compressing device and method for carrying out compressing device

#73
20190301447
2019-10-03

Method of manufacturing a fluid end block with integrated web portion

#74
20190234402
2019-08-01

Reciprocating compressor

#75
20190186671
2019-06-20

FLOW RESTRICTOR AND GAS COMPRESSOR

#76
20190178538
2019-06-13

Linear compressor

#77
20190136840
2019-05-09

Reciprocating pump

#78
20190120221
2019-04-25

Reciprocating compressor and method for manufacturing a reciprocating compressor

#79
20190093645
2019-03-28

Linear compressor comprising a stator defining a cylinder space for a cylinder supported by a support member with a cylindrical portion, a first bent portion, and a second bent portion configured to support an area of the cylinder in an axial direction

#80
20190010938
2019-01-10

Small air compressor

#81
20190003475
2019-01-03

Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism

#82
20180372079
2018-12-27

Portable pump

#83
20180355449
2018-12-13

High toughness martensitic stainless steel and reciprocating pump manufactured therewith

#84
20180291892
2018-10-11

Discharge valve keeper and plunger cover for high pressure pumps

#85
20180291884
2018-10-11

Reciprocating compressor

#86
20180245574
2018-08-30

Reciprocating piston compressor, a retrofit kit for a reciprocating piston compressor and the use of a connecting rod in a reciprocating piston compressor

#87
20180238316
2018-08-23

Cylinder head for compressor

#88
20180230982
2018-08-16

Linear compressor

#89
20180230977
2018-08-16

Pump fluid end with integrated web portion

#90
20180216609
2018-08-02

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

#91
20180156212
2018-06-07

Packaging bore for eliminating washout failure

#92
20180106512
2018-04-19

Closed compressor and refrigeration device using the same

#93
20180058430
2018-03-01

Pump fluid end with integrated web portion

#94
20180030974
2018-02-01

Vacuum sealable container with internal pump mechanism

#95
20180030973
2018-02-01

Offset valve bore in a reciprocating pump

#96
20170321684
2017-11-09

Linear compressor

#97
20170321677
2017-11-09

Linear compressor having discharge valve, support with rotation prevention protrusions, and discharge cover with protrusion accommodation grooves

#98
20170321675
2017-11-09

Linear compressor with sound dampening gaskets

#99
20170321672
2017-11-09

Linear compressor

#100
20170321671
2017-11-09

Linear compressor

#101
20170314542
2017-11-02

Linear compressor

#102
20170306941
2017-10-26

Hermetic compressor and refrigeration device

#103
20170298912
2017-10-19

Hydrostatic pump barrel with sloped kidney ports

#104
20170268492
2017-09-21

Closed compressor and refrigeration device

#105
20170204848
2017-07-20

Air compressor

#106
20170204845
2017-07-20

Air compressor

#107
20170204843
2017-07-20

Air compressor

#108
20170184330
2017-06-29

Compressor

#109
20170122302
2017-05-04

Cylinder head assembly for reciprocating compressor

#110
20170114782
2017-04-27

Constructive Arrangement Introduced in a Reciprocating Compressor Including a Lubricant Oil Pump

#111
20170096997
2017-04-06

Variable capacity reciprocating compressor

#112
20170096992
2017-04-06

Two-way wobble plate compressor

#113
20170074259
2017-03-16

Compressor piston shape to reduce clearance volume

#114
20170058879
2017-03-02

Positive displacement pump

#115
20170016435
2017-01-19

Reciprocating compressor and hydrogen supply system

#116
20170009888
2017-01-12

Machine with reduced cylinder friction

#117
20170009755
2017-01-12

Sealed compressor and refrigeration device

#118
20160356160
2016-12-08

Fluid working machine having offset valve cylinders

#119
20160348660
2016-12-01

Cylinder

#120
20160305414
2016-10-20

Railway vehicle air compressor with integral high pressure cylinder unloader valve

#121
20160281701
2016-09-29

Method and equipment for improving the efficiency of compressors and refrigerators

#122
20160273579
2016-09-22

SEALED COMPRESSOR AND REFRIGERATION UNIT INCLUDING SEALED COMPRESSOR

#123
20160230755
2016-08-11

System and method of determining top-dead-center (TDC) of reciprocating compressor

#124
20160222961
2016-08-04

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

#125
20160222955
2016-08-04

Pump for cryogenic liquids having temperature managed pumping mechanism

#126
20160222954
2016-08-04

Reciprocating compressor

#127
20160208789
2016-07-21

Inflator having an enhanced cooling effect on a motor thereof

#128
20160208787
2016-07-21

DOUBLE- HEADED PISTON TYPE SWASH PLATE COMPRESSOR

#129
20160201666
2016-07-14

PRESSURIZING BOOSTER COMPRESSOR

#130
20160186738
2016-06-30

Reciprocating Compressor or Pump and a Portable Tool Powering System Including a Reciprocating Compressor

#131
20160177933
2016-06-23

Compressor

#132
20160160416
2016-06-09

Compressed air supplying device of a sewing machine

#133
20160149477
2016-05-26

Linear motor and compressor equipped with linear motor

#134
20160146199
2016-05-26

Cryogenic pump with insulating arrangement

#135
20160138578
2016-05-19

AIR COMPRESSOR ASSEMBLY HAVING A CONDENSATE MANAGEMENT SYSTEM

#136
20160131125
2016-05-12

Reciprocating compressor and method for assembling the same

#137
20160123311
2016-05-05

Fluid working machine having first and second valve cylinder devices in fluid communication with each other via a common conduit

#138
20160097383
2016-04-07

Air compressor

#139
20160097379
2016-04-07

Air compressor

#140
20160090974
2016-03-31

COMPRESSOR FOR PRODUCING A PRESSURE MEDIUM

#141
20160056699
2016-02-25

Linear compressor

#142
20160053754
2016-02-25

Linear compressor, and apparatus and method for controlling a linear compressor

#143
20160006331
2016-01-07

Linear compressor and linear motor

#144
20150369237
2015-12-24

Linear compressor

#145
20150369226
2015-12-24

PUMPING DEVICE

#146
20150369225
2015-12-24

Linear compressor

#147
20150369224
2015-12-24

Linear compressor

#148
20150362112
2015-12-17

Flow restrictor and gas compressor

#149
20150330379
2015-11-19

Air compressor with improved rotating device

#150
20150285235
2015-10-08

Reciprocating compressor having casing including inner and outer shells

#151
20150275885
2015-10-01

Compressor

#152
20150226203
2015-08-13

Linear compressor

#153
20150226202
2015-08-13

Linear compressor

#154
20150226197
2015-08-13

Linear compressor

#155
20150226196
2015-08-13

Linear compressor

#156
20150226194
2015-08-13

Linear compressor

#157
20150219215
2015-08-06

Piston of axial piston pump motor, cylinder block of axial piston pump motor, and axial piston pump motor

#158
20150219084
2015-08-06

COMPRESSOR

#159
20150211507
2015-07-30

SEALED COMPRESSOR

#160
20150139825
2015-05-21

High-pressure pump

#161
20150135943
2015-05-21

Cylinder block for a compressor, in particular swash plate compressor, and swash plate compressor

#162
20150044066
2015-02-12

Variable capacity reciprocating compressor

#163
20150004027
2015-01-01

Linear compressor

#164
20140322043
2014-10-30

Reciprocating compressor

#165
20140322033
2014-10-30

Offset valve bore in a reciprocating pump

#166
20140318747
2014-10-30

Compressing device

#167
20140314604
2014-10-23

Compressor with valve pressing portions for sealing

#168
20140308140
2014-10-16

Hermetic compressor

#169
20140298985
2014-10-09

COMPRESSOR BLOCK

#170
20140283679
2014-09-25

Flow restrictor and gas compressor

#171
20140219832
2014-08-07

Swash plate compressor having a curved piston guide wall

#172
20140147300
2014-05-29

Rocking piston compressor with sound dissipation

#173
20140134025
2014-05-15

Air compressor having enlarged compartment for receiving pressurized air

#174
20140105764
2014-04-17

Reciprocating compressor

#175
20140072461
2014-03-13

Linear compressor with an electro-magnetic spring

#176
20140053720
2014-02-27

Reciprocating compressor having fluid bearing

#177
20140020554
2014-01-23

Air Pump Cylinder

#178
20130302181
2013-11-14

ZERO EMISSIONS PNEUMATIC-ELECTRIC ENGINE

#179
20130259713
2013-10-03

Swash plate type compressor

#180
20130216413
2013-08-22

Offset valve bore in a reciprocating pump

#181
20130199223
2013-08-08

Variable capacity compressor and refrigerator

#182
20130115113
2013-05-09

Reciprocating compressor

#183
20130058816
2013-03-07

RECIPROCATING COMPRESSOR

#184
20130058815
2013-03-07

Reciprocating compressor with gas bearing

#185
20130011283
2013-01-10

Air Compressor

#186
20130004343
2013-01-03

Reciprocating compressor

#187
20120251363
2012-10-04

High-pressure pump

#188
20120237369
2012-09-20

CYLINDER BLOCK OF PISTON-TYPE COMPRESSOR AND METHOD FOR MANUFACTURING THE SAME

#189
20120183424
2012-07-19

Offset valve bore for a reciprocating pump

#190
20120183423
2012-07-19

Block for a reciprocating refrigeration compressor

#191
20120183419
2012-07-19

HERMETIC COMPRESSOR

#192
20120177516
2012-07-12

Pump housing of a motor vehicle hydraulic unit with at least one main cylinder connection opening

#193
20120144995
2012-06-14

Offset valve bore in a reciprocating pump

#194
20120107154
2012-05-03

Soft-start hermetic compressor

#195
20120090461
2012-04-19

Compressor cylinder block and cylinder head distortion prevention

#196
20120063937
2012-03-15

Suction arrangement for a hermetic refrigeration compressor

#197
20120023973
2012-02-02

METHOD AND EQUIPMENT FOR IMPROVING THE EFFICIENCY OF COMPRESSORS AND REFRIGERATORS

#198
20120006191
2012-01-12

AIR OR GAS COMPRESSION SYSTEM

#199
20110250083
2011-10-13

LINEAR COMPRESSOR

#200
20110217189
2011-09-08

REFRIGERANT COMPRESSOR

#201
20110189010
2011-08-04

METHOD OF MOUNTING A COMPRESSOR BLOCK ON A STATOR AND A COMPRESSOR ARRANGEMENT

#202
20110158825
2011-06-30

System and method for modifying an automobile engine for use as a gas compressor

#203
20110123373
2011-05-26

REFRIGERANT COMPRESSOR

#204
20110070105
2011-03-24

Constructive arrangement for a hermetic refrigeration compressor

#205
20110027111
2011-02-03

Hermetic compressor

#206
20100310396
2010-12-09

Arrangement and process for mounting a resonant spring in a refrigeration compressor

#207
20100290939
2010-11-18

Refrigerant compressor

#208
20100260628
2010-10-14

Linear compressor

#209
20100242721
2010-09-30

Linear compressor

#210
20100186585
2010-07-29

Piston-and-cylinder assembly with a variable diametral clearance, and a cylinder for use in a piston-and-cylinder assembly with a variable diametral clearance

#211
20100083826
2010-04-08

Method of mounting a cylinder arrangement of a hermetically enclosed refrigerant compressor arrangement, and hermetically enclosed refrigerant compressor arrangement

#212
20100046866
2010-02-25

GAS THRUST BEARING AND BEARING BUSH THEREFOR

#213
20100046862
2010-02-25

LINEAR COMPRESSOR AND GAS THRUST BEARING THEREFOR

#214
20100008808
2010-01-14

SLIDING FACE MODIFICATION MATERIAL, METHOD FOR PRODUCING SLIDING FACE MODIFICATION MATERIAL, METHOD FOR USING SLIDING FACE MODIFICATION MATERIAL, SLIDING MEMBERS HAVING SLIDING FACE MODIFICATION MATERIAL, AND COMPRESSOR COMPRISING SLIDING MEMBERS

#215
20100001100
2010-01-07

Piston pump for a sprayer

#216
20090301293
2009-12-10

Compressor

#217
20090288639
2009-11-26

Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combustion engine with such mechanism

#218
20090274569
2009-11-05

Piston compressor

#219
20090148322
2009-06-11

Cylinder apparatus, compressor and manufacturing method of cylinder apparatus

#220
20090116978
2009-05-07

Refrigerant compressor

#221
20090110567
2009-04-30

Air Compressor

#222
20090068029
2009-03-12

Refrigerant Compressor

#223
20090028725
2009-01-29

Hermetic compressor having auxiliary communication tube

#224
20090028722
2009-01-29

Compressor

#225
20080196861
2008-08-21

Apparatus For Control of Fluid Temperature

#226
20080075610
2008-03-27

Linear Compressor Cylinder and Head Construction

#227
20080050227
2008-02-28

Compression chamber unit and a method for forming such unit

#228
20080008610
2008-01-10

Piston/cylinder unit

#229
20080003119
2008-01-03

Radial type reciprocating compressor and portable tool powering system with flexing connecting rod arrangement

#230
20080003112
2008-01-03

Radial type reciprocating compressor and portable tool powering system with cylinder liner, valve and annular manifold arrangement

#231
20070292282
2007-12-20

RECIPROCATING COMPRESSOR OR PUMP AND A PORTABLE TOOL POWERING SYSTEM INCLUDING A RECIPROCATING COMPRESSOR

#232
20070264137
2007-11-15

Hermetic compressor

#233
20070212237
2007-09-13

Magnetic suspension pumps

#234
20070103018
2007-05-10

GAS ASPIRATION AND COMPRESSION SYSTEM, ESPECIALLY FOR GAS COMPRESSORS

#235
20070041858
2007-02-22

BOOSTER-TYPE COMPRESSOR

#236
20070020127
2007-01-25

Hermetic type compressor

#237
20070017763
2007-01-25

Energy conversion device including a piston without O-rings

#238
20060292022
2006-12-28

Cylinder assembly for compressor and assembling method thereof

#239
20060133943
2006-06-22

Piston compressor cylinder arrangement, particularly for a hermetically enclosed refrigerant compressor

#240
20060127249
2006-06-15

Fluid pump, a fluid-transfer plate and an inductive sensor for a fluid pump

#241
20060127248
2006-06-15

Air pump

#242
20050172646
2005-08-11

Refrigerant compressor, and refrigerating machine using the same

#243
20050158182
2005-07-21

Piston type compressor

#244
20050129543
2005-06-16

Compressor assembly with reciprocating piston and vented cylinder

#245
20050129542
2005-06-16

Compressor assembly with piston having multiple cross sections

#246
20050089416
2005-04-28

Hermetic compressor

#247
20050089412
2005-04-28

Miniature air compressor

#248
20050063840
2005-03-24

Air compressor having stable configuration

#249
20050002805
2005-01-06

Wobble piston pump with carbon graphite cylinder

#250
18480555
2024-12-03

Inverted fluid chamber

#251
16129225
2019-10-15

Fluid transfer and depressurization system

#252
15641087
2020-10-20

High pressure pumps having a check valve keeper and associated systems and methods

#253
13154464
2014-07-22

Plunger pump fluid end