ClassID:

143018

F04B39/128 - 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 Crankcases

Recent Application in this class:
#1
20260139668
2026-05-21

RECIPROCATING PUMP POWER END WITH MONOLITHIC CORE

#2
20260085677
2026-03-26

SYSTEMS AND METHODS FOR CAPTURING EMISSIONS WITH AN INTERNAL COMBUSTION ENGINE

#3
20260043519
2026-02-12

METHANE AND EMISSIONS REDUCTION SYSTEM

#4
20250389269
2025-12-25

RECIPROCATING PUMP POWER END WITH MONOLITHIC CORE

#5
20250382953
2025-12-18

HEAD MODULE FOR AIR COMPRESSOR AND AIR COMPRESSOR INCLUDING SAME

#6
20250376978
2025-12-11

AIR COMPRESSOR FOR A VEHICLE AIR BRAKING SYSTEM

#7
20250180010
2025-06-05

COMPRESSOR VAPORIZER WITH DISCHARGE PIPE IN CRANKCASE

#8
20250084839
2025-03-13

REDUCED HEAT EXCHANGE RECIPROCATING COMPRESSOR

#9
20240084765
2024-03-14

Compression emissions evacuator

#10
20240068620
2024-02-29

METHANE AND EMISSIONS REDUCTION SYSTEM

#11
20230213032
2023-07-06

Crosshead bushing systems and methods

#12
20230151803
2023-05-18

Air compressor

#13
20230039253
2023-02-09

SUPPORT FOR RECIPRICATING PUMP

#14
20230014696
2023-01-19

RECIPROCATING HERMETIC COMPRESSOR WITH AXIAL FLUX MOTOR

#15
20220252060
2022-08-11

Gas transport and pressurization system

#16
20220170596
2022-06-02

Methane and emissions reduction system

#17
20220090596
2022-03-24

COMPRESSOR AND REFRIGERATION DEVICE

#18
20210270264
2021-09-02

Support for reciprocating pump

#19
20210123425
2021-04-29

HIGH POWER QUINTUPLEX PLUNGER PUMP

#20
20210054837
2021-02-25

Methane and emissions reduction system

#21
20210003121
2021-01-07

PROCESS FOR OPERATING A SINGLE-STROKE COMBUSTION ENGINE

#22
20200386221
2020-12-10

Integral reciprocating pump structure supporting spacer section

#23
20200277946
2020-09-03

Dual engine-compressor system

#24
20200141401
2020-05-07

Support for reciprocating pump

#25
20200102947
2020-04-02

Compressor, compressed air supply facility for operating a pneumatic system, and method for operating a compressed air supply facility

#26
20200102946
2020-04-02

Seal assembly for reciprocating compressor

#27
20200040880
2020-02-06

Dual engine-compressor system

#28
20190277341
2019-09-12

Power end frame assembly for reciprocating pump

#29
20190226466
2019-07-25

Linear compressor

#30
20190093648
2019-03-28

VERSATILE HOUSING OF COMPRESSOR MOTORS

#31
20190032720
2019-01-31

Bearing system for reciprocating pump and method of assembly

#32
20190032650
2019-01-31

Apparatus and method for gas compression

#33
20180135615
2018-05-17

Miniature vacuum/pressure diaphragm pumps with noise mitigation boot

#34
20180112902
2018-04-26

Compressor crankcase heating control systems and methods

#35
20180087493
2018-03-29

Compression unit for a volumetric compressor without lubrification

#36
20180010593
2018-01-11

AIR COMPRESSOR PUMP WITH CONDENSING CHAMBER

#37
20170328356
2017-11-16

Housing for a motor or compressor

#38
20170314547
2017-11-02

Gas Compression System

#39
20170254322
2017-09-07

AIR COMPRESSOR MADE OF A LIGHT METAL

#40
20170241412
2017-08-24

Piston compressor and refrigeration system having the same

#41
20170218934
2017-08-03

Crankcase assembly for a reciprocating machine

#42
20170218933
2017-08-03

Reciprocating compressor

#43
20170058889
2017-03-02

Lightweight compressor crankcase assembly and method

#44
20170037843
2017-02-09

Autolift-resistant piston assembly for an unloader valve of an air compressor

#45
20170016437
2017-01-19

Compressor with crankshaft and insert

#46
20160348664
2016-12-01

BASE UNIT FOR ASSEMBLING A CRANKCASE OF A RECIPROCAL COMPRESSOR

#47
20160319809
2016-11-03

Compressor

#48
20160273818
2016-09-22

Compressor crankcase heating control systems and methods

#49
20160201666
2016-07-14

PRESSURIZING BOOSTER COMPRESSOR

#50
20160177933
2016-06-23

Compressor

#51
20160116071
2016-04-28

REFRIGERANT COMPRESSOR SHAFT SEAL

#52
20160115949
2016-04-28

Piston drive device

#53
20160108908
2016-04-21

Compressor and crankshaft-connecting rod assembly

#54
20160061505
2016-03-03

Compressor crankcase heating control systems and methods

#55
20150322937
2015-11-12

OIL-FREE COMPRESSOR CRANKCASE COOLING ARRANGEMENT

#56
20150219083
2015-08-06

Vehicle Air Compressor Apparatus for a Heavy Vehicle Air Braking System

#57
20150204318
2015-07-23

Air compressor with improved noise reduction performance

#58
20140138451
2014-05-22

Compressor crankcase heating control systems and methods

#59
20140033912
2014-02-06

Crankcase of a piston compressor and piston compressor provided with such crankcase

#60
20130056613
2013-03-07

Grommet Mounting Assembly

#61
20120247141
2012-10-04

Reciprocating Refrigeration Compressor Oil Sealing

#62
20120211034
2012-08-23

Pump for a high-pressure cleaning appliance

#63
20120183423
2012-07-19

Block for a reciprocating refrigeration compressor

#64
20110217189
2011-09-08

REFRIGERANT COMPRESSOR

#65
20110005266
2011-01-13

Reciprocating piston compressor

#66
20100282073
2010-11-11

Method for manufacturing a crankcase of a piston compressor, crankcase obtained with the method and piston compressor provided with such crankcase

#67
20100221128
2010-09-02

Compact Dry-Running Piston Compressor

#68
20100129249
2010-05-27

FRAME FOR FLUID MACHINES

#69
20090028722
2009-01-29

Compressor

#70
20090007859
2009-01-08

Reciprocating device with dual chambered cylinders

#71
20080092384
2008-04-24

Installation of Middle Bearing for a Crankshaft

#72
20070160484
2007-07-12

BOOSTER-TYPE GAS COMPRESSOR

#73
20060045768
2006-03-02

Oil-less air compressor

#74
20050112004
2005-05-26

Pump

#75
16861437
2022-02-22

UAV propulsion system with dual rotary valves and multi-compartment crankcase

#76
16778962
2020-12-22

Power end of a pump

#77
13336438
2015-06-02

Reciprocating device with dual chambered cylinders