ClassID:

142707

F04B9/04 - CPC Classification

Classification description:

Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms

Sub-classes:
Recent Application in this class:
#1
20260146593
2026-05-28

PUMP AND DRIVE ASSEMBLY

#2
20250172133
2025-05-29

PISTON-CYLINDER ASSEMBLY FOR A RADIAL PISTON COMPRESSOR, AND RADIAL PISTON COMPRESSOR

#3
20240384710
2024-11-21

INSTALLATION FOR PUMPING CRYOGENIC FLUID AND FILLING STATION COMPRISING SUCH AN INSTALLATION

#4
20240011475
2024-01-11

Radial piston compressor with transmission element and piston guide ring

#5
20230374978
2023-11-23

Piston pump with two motor stators and one motor rotor having cam driving piston and flow distributor

#6
20230235729
2023-07-27

COMPACT OPPOSED PUMP

#7
20230184235
2023-06-15

PUMP AND DRIVE ASSEMBLY

#8
20230117504
2023-04-20

DRIVE MECHANISM FOR POSITIVE DISPLACEMENT PUMPS

#9
20210404458
2021-12-30

Reciprocating-piston machine, compressed air supply system, vehicle and method for producing a reciprocating-piston machine

#10
20210372385
2021-12-02

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

#11
20210310467
2021-10-07

POSITIVE-DISPLACEMENT PUMP AND PUMPING GROUP FOR FLUID PRODUCTS AND METHOD FOR THE USE THEREOF

#12
20210293229
2021-09-23

Double-piston compressor having a sliding block producing a stroke curve that deviates from a sinusoidal stroke curve

#13
20210293226
2021-09-23

Precision, constant-flow reciprocating pump

#14
20200362854
2020-11-19

Multi-channel positive displacement pump apparatus

#15
20200361434
2020-11-19

Piston pump unit for a hydraulic vehicle braking system

#16
20200072201
2020-03-05

Reciprocating pumps having a pivoting arm

#17
20190257306
2019-08-22

Reciprocating Compressor System with Liquid Pumping Capability

#18
20190242371
2019-08-08

Pump unit comprising an outer part, an inner part, and a top part with a piston, wherein the piston extends into the inner part and the top part is arranged to perform a scrolling movement whereby the inner part is caused to slide in a first direction relative to the outer part

#19
20190195208
2019-06-27

Non-pulsation pump having stroke adjustment mechanism

#20
20190162174
2019-05-30

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

#21
20190063554
2019-02-28

Eccentric gear drive with reduced backlash

#22
20190047339
2019-02-14

Tire inflation system

#23
20190022692
2019-01-24

Liquid material ejection device

#24
20180363635
2018-12-20

Semi-free rotating crankshaft actuator to pre-stress and fast release a spring loadable plunger for an oral healthcare appliance

#25
20180266374
2018-09-20

Tappet roller retaining approach

#26
20180187637
2018-07-05

High-pressure pump

#27
20180106244
2018-04-19

Electric pump

#28
20180045187
2018-02-15

Drive mechanism module for a reciprocating pump

#29
20180001040
2018-01-04

Driving method for metering pump, driving apparatus for metering pump, vaporizer, and anesthesia apparatus

#30
20170335842
2017-11-23

Pumping system, vibration limiting device, and method

#31
20170306935
2017-10-26

Reciprocating pump

#32
20170304517
2017-10-26

Blood purification device

#33
20170248129
2017-08-31

Positive-displacement pump and pumping group for fluid products and method for the use thereof

#34
20170241384
2017-08-24

PUMP AND FUEL INJECTION DEVICE

#35
20170227001
2017-08-10

Fluid pump leakage diversion

#36
20170204823
2017-07-20

Roller for a roller plunger of a high pressure fuel pump, roller plunger, high pressure fuel pump, and internal combustion engine

#37
20170082094
2017-03-23

Pump

#38
20170015159
2017-01-19

Tire inflation system

#39
20170009766
2017-01-12

Rigid piston-actuator-assembly supported for performing a pendulum-type tolerance compensation motion

#40
20160256915
2016-09-08

R-θ table apparatus and processing apparatus of internal thread

#41
20160215797
2016-07-28

Self priming hydraulic pump and circuit

#42
20160153413
2016-06-02

High-pressure pump

#43
20150322976
2015-11-12

Travel end expansion valve for piston type pressure converter

#44
20150246663
2015-09-03

ABS hydraulic unit

#45
20150139839
2015-05-21

Scotch yoke arrangement

#46
20150078932
2015-03-19

Drive mechanism for rotary compressors or pumps

#47
20140260969
2014-09-18

Pump with water management

#48
20140186195
2014-07-03

Tire inflation system

#49
20140093411
2014-04-03

Wobble drive mechanism

#50
20140093402
2014-04-03

Passive pressure regulation mechanism

#51
20140079579
2014-03-20

HIGH-PRESSURE FUEL PUMP

#52
20140041622
2014-02-13

XY separate crank mechanism and driving device provided therewith

#53
20140033914
2014-02-06

Piston pump comprising flat guiding

#54
20140010680
2014-01-09

Energy extraction system

#55
20140003969
2014-01-02

Energy extraction system

#56
20140000756
2014-01-02

Passive pressure regulation mechanism

#57
20140000755
2014-01-02

Tire inflation system

#58
20130336815
2013-12-19

HYDRAULIC AXIAL PISTON PUMP ABLE TO OPERATE IN BOTH DIRECTIONS

#59
20130259713
2013-10-03

Swash plate type compressor

#60
20130251553
2013-09-26

Tire inflation system

#61
20130251552
2013-09-26

Energy extraction system

#62
20130195691
2013-08-01

Swing barrel type positive displacement pump using cross shaft joint bearing

#63
20130195390
2013-08-01

Eccentric bearing

#64
20130121848
2013-05-16

Lishanski's vibratory cavitation pump

#65
20120315176
2012-12-13

Rotary cylinder device

#66
20120251338
2012-10-04

Vibratory cavitation pump lishanski

#67
20120177505
2012-07-12

Variable stroke control structure for high pressure fuel pump

#68
20120152404
2012-06-21

Delivery for deliver fluid products and method of using

#69
20120145263
2012-06-14

Device and method to deliver fluid products

#70
20120118138
2012-05-17

FLUID DELIVERY SYSTEM COMPRISING A FLUID PUMPING DEVICE AND A DRIVE SYSTEM

#71
20120060684
2012-03-15

Fluid working machine and method of operating a fluid working machine

#72
20110265752
2011-11-03

Tappet

#73
20110200457
2011-08-18

Pump device for the hydraulic actuation of a valve

#74
20110120242
2011-05-26

Scotch yoke arrangement

#75
20100278667
2010-11-04

Peristaltic pump

#76
20100260634
2010-10-14

Volumetric Pump With Reciprocated and Rotated Piston

#77
20100163124
2010-07-01

Programmable logic controlled liquid pressurization device incorporating low energy consumption mechanisms for the utilization of solar energy

#78
20100129245
2010-05-27

Floating pinion bearing for a reciprocating pump

#79
20100111721
2010-05-06

DUAL PISTON PUMP ASSEMBLY WITH ANTI-ROTATION GUIDE RAILS

#80
20090311112
2009-12-17

Air supply apparatus

#81
20090283191
2009-11-19

Device for generating tire air pressure

#82
20090092508
2009-04-09

Electric thrust piston pump device

#83
20090068034
2009-03-12

PUMPING SYSTEM WITH PRECISE RATIO OUTPUT

#84
20090053086
2009-02-26

Volumetric pump with reciprocated and rotated piston

#85
20080025856
2008-01-31

COMPRESSOR FOR LIQUID FUEL CANISTER

#86
20070251379
2007-11-01

Air compression apparatus and method of use

#87
20060228232
2006-10-12

Pump and motor assembly

#88
20060222524
2006-10-05

BRACKET FOR PUMP AND MOTOR ASSEMBLY

#89
20060159569
2006-07-20

Pump device for the hydraulic actuation of a valve

#90
20060127231
2006-06-15

Portable, refrigerant recovery unit