ClassID:

143224

F04B53/164 - CPC Classification

Classification description:

Component parts, details or accessories not provided for in, or of interest apart from, groups  -  or  - ; Casings; Cylinders; Cylinder liners or heads; Fluid connections; Adaptations of cylinders Stoffing boxes

Recent Application in this class:
#1
20260153083
2026-06-04

HYDRAULIC END OF FRACTURING PUMP

#2
20260153082
2026-06-04

HYDRAULIC END OF FRACTURING PUMP

#3
20260139669
2026-05-21

MULTI-PIECE FLUID END

#4
20260139667
2026-05-21

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

#5
20260139663
2026-05-21

PACKING SEAL ASSEMBLY

#6
20260132856
2026-05-14

SEALING HIGH PRESSURE FLOW DEVICES

#7
20260132785
2026-05-14

Hydraulic End of Fracturing Pump

#8
20260126040
2026-05-07

FLUID CYLINDER WITH WEDGE FLANGES

#9
20260125975
2026-05-07

FLUID END

#10
20260078754
2026-03-19

SYSTEMS, ASSEMBLIES, APPARATUSES, AND METHODS PROVIDING ENHANCED FLUID SEAL FOR HIGH-POWER PUMPS

#11
20250369438
2025-12-04

REMOVABLE PACKING GLAND ASSEMBLY

#12
20250341210
2025-11-06

Seal for reciprocating pump

#13
20250327446
2025-10-23

JUNK RING FOR RECIPROCATING PUMP

#14
20250314300
2025-10-09

HYDRAULIC FLUID PUMP AND STUFFING BOX ASSEMBLY FOR SAME

#15
20250305585
2025-10-02

FLUID END WITH CLAMPED RETENTION

#16
20250290505
2025-09-18

FRACTURING PUMP ARRANGEMENT USING A PLUNGER WITH AN INTERNAL FLUID PASSAGE

#17
20250283465
2025-09-11

FLUID END ASSEMBLY

#18
20250283463
2025-09-11

PACKING ASSEMBLY WITH THREADED SLEEVE FOR INTERACTION WITH AN INSTALLATION TOOL

#19
20250264095
2025-08-21

PACKING SEAL ASSEMBLY

#20
20250257729
2025-08-14

FLUID END WITH CLAMPED RETENTION

#21
20250257722
2025-08-14

FLUID END

#22
20250250974
2025-08-07

HIGH PRESSURE PUMP

#23
20250230877
2025-07-17

SEALING HIGH PRESSURE FLOW DEVICES

#24
20250230811
2025-07-17

FLUID END

#25
20250207571
2025-06-26

FLUID END

#26
20250198272
2025-06-19

FLUID END

#27
20250180014
2025-06-05

MODULAR POWER END

#28
20250172213
2025-05-29

SEALING HIGH PRESSURE FLOW DEVICES

#29
20250172139
2025-05-29

COOLING SLEEVE FOR USE WITH A FLUID END

#30
20250075695
2025-03-06

FLUID END ASSEMBLY

#31
20250003399
2025-01-02

Fluid end assembly

#32
20240426293
2024-12-26

CRADLE PLATE FOR HIGH PRESSURE RECIPROCATING PUMPS

#33
20240401588
2024-12-05

Fluid end with clamped retention

#34
20240344506
2024-10-17

High pressure pump

#35
20240328405
2024-10-03

Fluid end

#36
20240318643
2024-09-26

Fluid end

#37
20240309742
2024-09-19

Fluid end

#38
20240254979
2024-08-01

MULTI-PIECE FLUID END

#39
20240240625
2024-07-18

SYSTEM FOR DISPENSING ABRASIVE MATERIAL

#40
20240229789
2024-07-11

FLUID CYLINDER WITH WEDGE FLANGES

#41
20240229786
2024-07-11

CRADLE PLATE FOR HIGH PRESSURE RECIPROCATING PUMPS

#42
20240218865
2024-07-04

Packing seal assembly

#43
20240209853
2024-06-27

RECIPROCATING PUMP

#44
20240209851
2024-06-27

MODULAR PLUNGER PACKING GLAND ASSEMBLY

#45
20240200657
2024-06-20

FLUID END WITH CLAMPED RETENTION

#46
20240141889
2024-05-02

SEAL STRUCTURE FOR RECIPROCATING PUMP WITH CYLINDRICAL COLLAR PORTION

#47
20240133375
2024-04-25

FLUID CYLINDER WITH WEDGE FLANGES

#48
20240133371
2024-04-25

Cradle plate for high pressure reciprocating pumps

#49
20240125395
2024-04-18

Sealing high pressure flow devices

#50
20240125222
2024-04-18

Fluid end

#51
20240117806
2024-04-11

FLUID ROUTING PLUG

#52
20240117805
2024-04-11

PISTON PUMP

#53
20240077076
2024-03-07

HIGH PRESSURE PUMP

#54
20240068469
2024-02-29

Fluid end assembly

#55
20240068459
2024-02-29

Fluid end assembly

#56
20240035468
2024-02-01

Fluid end

#57
20230366395
2023-11-16

HIGH PRESSURE RECIPROCATING PUMP

#58
20230358226
2023-11-09

PRESSURE PACKING FOR A RECIPROCATING PISTON COMPRESSOR WITH BUFFER GAS BARRIER

#59
20230332687
2023-10-19

Piston compressor

#60
20230279956
2023-09-07

Sealing high pressure flow devices

#61
20230272786
2023-08-31

Fluid end

#62
20230258175
2023-08-17

Packing sleeve removal feature

#63
20230160382
2023-05-25

Fluid end

#64
20230151809
2023-05-18

Reciprocating compressor with a jacket around the piston rod

#65
20230096056
2023-03-30

High-Pressure Fuel Pump

#66
20230050603
2023-02-16

Modular power end

#67
20230047066
2023-02-16

Packing seal assembly

#68
20230022890
2023-01-26

Fluid end assembly

#69
20230021141
2023-01-19

Sealing high pressure flow devices

#70
20230018160
2023-01-19

Sealing high pressure flow devices

#71
20230012666
2023-01-19

High pressure pump

#72
20220412346
2022-12-29

Fluid end

#73
20220403839
2022-12-22

PACKING ASSEMBLY WITH THREADED SLEEVE FOR INTERACTION WITH AN INSTALLATION TOOL

#74
20220397107
2022-12-15

Fluid end assembly

#75
20220389916
2022-12-08

High pressure pump

#76
20220381234
2022-12-01

Fluid routing plug

#77
20220364645
2022-11-17

HYDRAULIC FLUID PUMP AND STUFFING BOX ASSEMBLY FOR SAME

#78
20220307486
2022-09-29

Fluid end

#79
20220299017
2022-09-22

System for dispensing abrasive material

#80
20220282725
2022-09-08

High pressure pump

#81
20220282720
2022-09-08

Fluid end with clamped retention

#82
20220282719
2022-09-08

Reciprocating pump fluid cylinder sleeve assembly

#83
20220282717
2022-09-08

Fluid routing plug

#84
20220275801
2022-09-01

Containing fluid leaks on additive pumps

#85
20220260161
2022-08-18

Sealing high pressure flow devices

#86
20220235751
2022-07-28

Fluid routing plug

#87
20220186718
2022-06-16

Fluid end packing assembly

#88
20220178367
2022-06-09

Injection pump

#89
20220163118
2022-05-26

SEAL STACK ASSEMBLY FOR RECIPROCATING PUMP

#90
20220163034
2022-05-26

Modular power end

#91
20220120347
2022-04-21

Rod packing

#92
20220099073
2022-03-31

Fluid end

#93
20220049686
2022-02-17

Fluid end

#94
20210404561
2021-12-30

Sealing high pressure flow devices

#95
20210190067
2021-06-24

Fluid end

#96
20210108734
2021-04-15

Sealing high pressure flow devices

#97
20210102630
2021-04-08

Sealing high pressure flow devices

#98
20210040945
2021-02-11

Synchronized plunger packing lubrication

#99
20200400234
2020-12-24

Hydraulic fluid pump and stuffing box assembly for same

#100
20200400141
2020-12-24

Pump shaft packing gland and bushing

#101
20200347843
2020-11-05

Hydraulic fluid pump and stuffing box assembly for same

#102
20200284248
2020-09-10

Shaft-cylinder assembly for high temperature operation

#103
20200240531
2020-07-30

Sealing high pressure flow devices

#104
20200232456
2020-07-23

Pump for liquid product comprising a sealing device and spraying installation comprising such a pump

#105
20200232455
2020-07-23

Pump With Segmented Fluid End Housing and In-Line Suction Valve

#106
20200191141
2020-06-18

Sealing system pump piston

#107
20200182240
2020-06-11

Fluid end

#108
20200011434
2020-01-09

Sealing high pressure flow devices

#109
20190301615
2019-10-03

Packing stack carrier for paint and other fluid pumps

#110
20190299378
2019-10-03

Packing insertion tool for paint and other fluid pumps

#111
20190145403
2019-05-16

Pump with segmented fluid end housing and in-line valve

#112
20190101107
2019-04-04

Plunger pump having a rotatable plunger with cut face disposed in a cylinder wherein the cylinder includes a main body and a spacer section with the spacer section having a greater length in an axial direction than the maximum stroke length of the plunger

#113
20190093653
2019-03-28

Containing fluid leaks on additive pumps

#114
20190055939
2019-02-21

Sealing system pump piston

#115
20190040963
2019-02-07

Cartridge assembly module for high pressure fluid system and related method of use

#116
20180340532
2018-11-29

Reciprocating pumps and closures therefore

#117
20180252210
2018-09-06

Compact Ultrahigh Pressure Dynamic Seal Assembly With Pressure Activating Backup Ring

#118
20180171999
2018-06-21

Fluid end of a reciprocating pump with reduced stress

#119
20180156212
2018-06-07

Packaging bore for eliminating washout failure

#120
20180156208
2018-06-07

INFLATABLE STATIC SEAL FOR A RECIPROCATING RODS

#121
20180119880
2018-05-03

Pneumatic immersion lubricant pump

#122
20180100583
2018-04-12

Pump shaft packing gland and bushing

#123
20180017173
2018-01-18

Sealing high pressure flow devices

#124
20180017047
2018-01-18

BOX LUBRICATION PUMP

#125
20180017046
2018-01-18

BOX LUBRICATION PUMP

#126
20170292506
2017-10-12

Paint sprayer pump cartridge

#127
20170227001
2017-08-10

Fluid pump leakage diversion

#128
20170204842
2017-07-20

Reciprocating machine with cylinder having collector groove

#129
20170138913
2017-05-18

Sealing moving with piston in a high-pressure pump

#130
20170016441
2017-01-19

High pressure sealing arrangement

#131
20160369793
2016-12-22

Liquid delivery pump

#132
20160265687
2016-09-15

Cartridge assembly module for high pressure fluid system and related method of use

#133
20160245274
2016-08-25

Reciprocating compressor, compression section unit, and maintenance method of reciprocating compressor

#134
20160186742
2016-06-30

High pressure pump

#135
20160146199
2016-05-26

Cryogenic pump with insulating arrangement

#136
20160138584
2016-05-19

Reciprocating compressor, pressure packing, and method

#137
20160131131
2016-05-12

Wiper seal assemblies for a reciprocating pump and methods relating thereto

#138
20160018001
2016-01-21

Sealing system and method for the production thereof

#139
20150252801
2015-09-10

Compact ultrahigh pressure dynamic seal assembly with pressure activating backup ring

#140
20150101694
2015-04-16

High pressure fluid system

#141
20150101681
2015-04-16

Quick coupler for a high pressure fluid system

#142
20150101680
2015-04-16

High pressure fluid system

#143
20150101679
2015-04-16

High pressure fluid system

#144
20140322043
2014-10-30

Reciprocating compressor

#145
20140260565
2014-09-18

Liquid feed pump and liquid chromatograph

#146
20140255226
2014-09-11

Box lubrication pump

#147
20140203625
2014-07-24

Slip control braking pump having a high pressure sealing structure

#148
20140070127
2014-03-13

Fluid end with carbide valve seat and adhesive dampening interface

#149
20140044577
2014-02-13

High pressure pump with reduced seal wear

#150
20140015202
2014-01-16

High pressure sealing arrangement

#151
20130340609
2013-12-26

PUMP HEAD OUTLET PORT

#152
20130189135
2013-07-25

Air pump structure

#153
20130017107
2013-01-17

DIESEL ENGINE FUEL INJECTION PUMP WHICH PISTONS ARE SEALED WITH ALL METAL SEAL RINGS

#154
20120263613
2012-10-18

Discharge valve and damper for a piston pump

#155
20120118822
2012-05-17

Reducing emissions of VOCs from low-pressure storage tanks

#156
20120118141
2012-05-17

PLUNGER-TYPE MEASURING PUMP

#157
20120097026
2012-04-26

Piston pump with leak diagnostic port

#158
20120031264
2012-02-09

Solvent delivery pump plunger backup seal

#159
20120001363
2012-01-05

STUFFING BOX FOR WALKING BEAM COMPRESSOR

#160
20110298182
2011-12-08

Sealing device for a pump

#161
20110236238
2011-09-29

Clamping device for cylinder sleeves and use thereof, and mud pump having a clamping

#162
20110020157
2011-01-27

FEED PUMP AND SEALING ARRANGEMENT FOR SAME

#163
20100319530
2010-12-23

SEALING APPARATUS FOR SQUARE PISTON USED FOR COMPRESSING AND FEEDING FLUID

#164
20100314835
2010-12-16

Zero emissions reciprocating pump

#165
20100296952
2010-11-25

Zero emissions reciprocating pump

#166
20100291659
2010-11-18

Methods and apparatuses for reducing emissions of volatile organic compounds from pumps and storage tanks for VOC-containing fluids

#167
20100253007
2010-10-07

Zero emissions reciprocating pump

#168
20100160710
2010-06-24

METHODS AND APPARATUSES FOR REDUCING EMISSIONS OF VOLATILE ORGANIC COMPOUNDS FROM PUMPS AND STORAGE TANKS FOR VOC-CONTAINING FLUIDS

#169
20100150740
2010-06-17

Sealing system device

#170
20100108164
2010-05-06

Defined leak path for high pressure seal

#171
20100008804
2010-01-14

Pump having improved and adjustable packing

#172
20100008803
2010-01-14

HIGH-PRESSURE SMALL VOLUME PUMP

#173
20090274568
2009-11-05

Piston pump

#174
20090243223
2009-10-01

Stuffing box for walking beam compressor

#175
20090211341
2009-08-27

Leakage Detection Based on Fluid Property Changes

#176
20090166982
2009-07-02

Plunger seal for pump

#177
20090166981
2009-07-02

Plunger seal for pump

#178
20090121440
2009-05-14

Dry-running piston rod sealing arrangement, and method for sealing a piston rod using one such arrangement

#179
20090114086
2009-05-07

Reciprocating gas compression installation with controlled leakage rate

#180
20090107328
2009-04-30

Reciprocating Pump

#181
20090097989
2009-04-16

Portable hybrid gas compressor

#182
20090028727
2009-01-29

Diluter pump for chemistry analyzers

#183
20090008883
2009-01-08

High-pressure fuel pump and seal system for high-pressure fuel pump

#184
20080286126
2008-11-20

Utility pump

#185
20080258405
2008-10-23

Sealing device

#186
20080240949
2008-10-02

Zero emissions reciprocating pump

#187
20080232189
2008-09-25

Homogeniser for the continuous treatment of fluids at very high pressure

#188
20080131299
2008-06-05

Reciprocating pump with sealing collar arrangement

#189
20080110515
2008-05-15

Defined lead path for high pressure seal

#190
20080079259
2008-04-03

Pump housing coupling

#191
20080069709
2008-03-20

Method for plasma coating an object of elastomeric material

#192
20080019851
2008-01-24

Method and apparatus for sealing an ultrahigh-pressure fluid system

#193
20070283806
2007-12-13

Additive pump

#194
20070273105
2007-11-29

PACKING CARTRIDGES AND PRESSURE-DAMPENING AND VOC-ABSORBING ELEMENTS FOR PLUNGER-TYPE PUMPS

#195
20070224061
2007-09-27

Apparatuses and methods for reducing emissons of volatile organic compounds when pumping fluids containing volatile organic compounds with a positive displacement pump

#196
20070222157
2007-09-27

Plunger seal for pump

#197
20070182103
2007-08-09

Sealing device

#198
20070176372
2007-08-02

Composite material and seals formed thereof

#199
20070169621
2007-07-26

Sealing device

#200
20070065320
2007-03-22

Fluid pump with enhanced seal

#201
20060140778
2006-06-29

Reciprocating positive displacement pump for deionized water and method of cooling and lubricating therefor

#202
20060115369
2006-06-01

Synthetic leather packings for reciprocating piston pump

#203
20060104843
2006-05-18

High pressure fuel pump

#204
20060045782
2006-03-02

Low-friction reciprocating pump

#205
20060042719
2006-03-02

Packing vent recovery system and method

#206
20050242513
2005-11-03

High temperature high pressure seal stack having run-dry capability

#207
20050232792
2005-10-20

High-pressure small volume pump

#208
20050042120
2005-02-24

Fluid-moving device with an internal passageway and a clearance seal

#209
19082284
2026-02-03

Multi-component plunger seal system for a pump and method

#210
19077200
2025-06-24

Fluid end

#211
18678612
2025-12-02

Removable packing gland assembly

#212
17949471
2023-09-12

Packing sleeve for pump fluid end

#213
17478658
2023-04-25

Hydraulic components and methods of manufacturing

#214
16105590
2021-10-12

Hydraulic components and methods of manufacturing

#215
14475213
2015-11-03

Plunger repositioning system

#216
14452667
2017-08-08

Rolling diaphragm seals