ClassID:

143137

F04B49/125 - CPC Classification

Classification description:

Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups  -  by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element by changing the eccentricity of the actuation means, e.g. cams or cranks, relative to the driving means, e.g. driving shafts

Sub-classes:
Recent Application in this class:
#1
20260097867
2026-04-09

APPARATUS FOR FILLING CARTRIDGES OF E-VAPOR DEVICES

#2
20250347271
2025-11-13

INFLATOR PUMP AND ONE-WAY PISTON

#3
20250347268
2025-11-13

MECHANISM FOR ELECTRONIC ADJUSTMENT OF FLOWS IN FIXED DISPLACEMENT PUMP

#4
20250264094
2025-08-21

AIR COMPRESSOR

#5
20240352925
2024-10-24

AIR COMPRESSOR FOR VEHICLE

#6
20240218860
2024-07-04

MECHANISM FOR ELECTRONIC ADJUSTMENT OF FLOWS IN FIXED DISPLACEMENT PUMP

#7
20240218859
2024-07-04

MECHANISM FOR ELECTRONIC ADJUSTMENT OF FLOWS IN FIXED DISPLACEMENT PUMP

#8
20240141890
2024-05-02

Reciprocating Piston Pump for Conveying a Medium

#9
20240101289
2024-03-28

APPARATUS FOR FILLING CARTRIDGES OF E-VAPOR DEVICES

#10
20240035461
2024-02-01

INFLATION PUMP AND INFLATION DEVICE

#11
20230358223
2023-11-09

PUMP AND COMBINATION PUMP/MIXER DEVICE

#12
20230151800
2023-05-18

ASSISTIVE TORQUE ELECTRO-HYDRAULIC PISTON PUMP SYSTEM

#13
20230100781
2023-03-30

PUMP DRIVE SYSTEM

#14
20220213884
2022-07-07

Mechanism for electronic adjustment of flows in fixed displacement pump

#15
20220186722
2022-06-16

METHOD FOR DETERMINING THE POSITION OF THE DIAPHRAGM OF AN ELECTRIC-MOTOR-DRIVEN DIAPHRAGM PUMP

#16
20220170456
2022-06-02

Multi-stage electric gas pump

#17
20220153457
2022-05-19

Apparatus for filling cartridges of e-vapor devices

#18
20210301802
2021-09-30

Variable Displacement Compressor

#19
20210239107
2021-08-05

ELASTIC DIAPHRAGM PUMP

#20
20210214080
2021-07-15

DIAPHRAGM PUMP AND AGRICULTURE UNMANNED AERIAL VEHICLE

#21
20210048018
2021-02-18

Capacity control valve having a solenoid and a second plunger between the solenoid and a valve body

#22
20200408200
2020-12-31

Positive displacement pump controller and method of operation

#23
20200271112
2020-08-27

Positive displacement pump having an eccentric piston

#24
20200224647
2020-07-16

Precise control of suction damping device in a variable displacement compressor

#25
20200172385
2020-06-04

Apparatus for filling cartridges of e-vapor devices

#26
20190277275
2019-09-12

Electro-hydraulic swashplate control arrangement for an axial piston pump

#27
20190219144
2019-07-18

Cam liner for integrated drive generator

#28
20190170128
2019-06-06

Precise control of suction damping device in a variable displacement compressor

#29
20190162161
2019-05-30

WAVE ENERGY ISOLATION DEVICE AND WAVE ENERGY CONVERSION EQUIPMENT USING THE SAME

#30
20180306172
2018-10-25

Piston pump assembly comprising piston with variable stroke and vehicle braking system comprising the same

#31
20180238323
2018-08-23

Method for operating a device for the dosed supply of a liquid

#32
20180202421
2018-07-19

RADIAL PISTON PUMPS AND MOTORS

#33
20180179042
2018-06-28

Apparatus for filling cartridges of e-vapor devices

#34
20180149150
2018-05-31

Variable displacement pump and a method for regulating the pump

#35
20180073499
2018-03-15

VARIABLE-CAPACITY COMPRESSOR

#36
20170284381
2017-10-05

DOUBLE- HEADED PISTON TYPE SWASH PLATE COMPRESSOR

#37
20170276124
2017-09-28

Variable displacement axial piston pump with fluid controlled swash plate

#38
20170146009
2017-05-25

Variable displacement type swash plate compressor

#39
20170145997
2017-05-25

VARIABLE DISPLACEMENT TYPE SWASH PLATE COMPRESSOR

#40
20170089332
2017-03-30

Pump-regulator combination with power limitation

#41
20160363202
2016-12-15

Variable displacement linkage mechanism

#42
20160281706
2016-09-29

Removable shim clip for adjustable piston pump

#43
20160256915
2016-09-08

R-θ table apparatus and processing apparatus of internal thread

#44
20150354556
2015-12-10

LIQUID PUMP

#45
20150226209
2015-08-13

Variable displacement compressor and expander

#46
20150184650
2015-07-02

VARIABLE COMPRESSION SYSTEM FOR CONTROLLING SLANT ANGLE OF SLANT PLATE

#47
20140169985
2014-06-19

Diaphragm pump for dosing a fluid and an according method

#48
20140147323
2014-05-29

Variable displacement pump

#49
20130312400
2013-11-28

VARIABLE DISPLACEMENT PUMP

#50
20130098239
2013-04-25

Radial hydraulic pump with a variable eccentricity and delivery

#51
20130047836
2013-02-28

Multi-speed hydraulic pump

#52
20120259580
2012-10-11

Method for determining the displacement of a radial piston machine

#53
20120186441
2012-07-26

Torque control for open circuit piston pump

#54
20120042774
2012-02-23

Displacement assembly for a fluid device

#55
20110268596
2011-11-03

Fluid device with flexible ring

#56
20100170377
2010-07-08

Eccentric pump

#57
20100037602
2010-02-18

Variable displacement pump

#58
20090151551
2009-06-18

Hydraulic motor having radial cylinders and continuous variable displacement

#59
20090047146
2009-02-19

Eccentric Radial Piston Pump and Eccentric Radial Piston Motor

#60
19018992
2025-11-11

Full-sealing positive pressure and negative pressure integrated oil-free compressor for oxygen generation

#61
17739236
2023-08-29

Radial compliance mechanism to urge orbiting member to any desired direction and star scroll compressor