ClassID:

142677

F04B7/0053 - CPC Classification

Classification description:

Piston machines or pumps characterised by having positively-driven valving with specific kinematics of the distribution member for reciprocating distribution members

Recent Application in this class:
#1
20230366388
2023-11-16

DUAL ACTIVE VALVE FLUID PRESSURE OPERATED POSITIVE DISPLACEMENT PUMP

#2
20230358219
2023-11-09

Micro piston pump

#3
20220163024
2022-05-26

Micro piston pump

#4
20220099074
2022-03-31

Plunger pump, liquid feeding device, and liquid chromatography device

#5
20210404431
2021-12-30

High-pressure pump

#6
20210293226
2021-09-23

Precision, constant-flow reciprocating pump

#7
20210180588
2021-06-17

Reciprocating compressor-expander

#8
20210033079
2021-02-04

Valves

#9
20200362854
2020-11-19

Multi-channel positive displacement pump apparatus

#10
20200095966
2020-03-26

High-pressure pump

#11
20190316573
2019-10-17

Pump

#12
20190120190
2019-04-25

High-pressure pump

#13
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

#14
20190040850
2019-02-07

Micro piston pump

#15
20180171993
2018-06-21

Reciprocating Compressor Provided with Suction Valves Arrangement

#16
20180171951
2018-06-21

High-pressure pump

#17
20160153414
2016-06-02

High-pressure pump

#18
20160102657
2016-04-14

Piston pump for a hydraulic vehicle brake system

#19
20160040659
2016-02-11

PUMP DEVICES FOR FEEDING PASTY MASSES

#20
20140205481
2014-07-24

Air assisted severance of viscous fluid stream

#21
20140199192
2014-07-17

Fuel injection pump

#22
20130032212
2013-02-07

Control method of magnetic solenoid valve, control method of electromagnetically controlled inlet valve of high pressure fuel pump, and control device for electromagnetic actuator of electromagnetically controlled inlet valve

#23
20120251367
2012-10-04

Pump pressure control valve with shock reduction features

#24
20120132668
2012-05-31

Air assisted severance of viscous fluid stream

#25
20110274572
2011-11-10

Method for feeding pasty masses and pump device for feeding pasty masses

#26
20110206545
2011-08-25

Volumetric pump and its driving mechanism

#27
20110186018
2011-08-04

High-pressure pump

#28
20110174152
2011-07-21

VALVE-CONTROLLED POSITIVE DISPLACEMENT MACHINE

#29
20090274493
2009-11-05

Air discharging apparatus and image forming apparatus

#30
20060159574
2006-07-20

Piston pump