F04B7/0015 - CPC Classification Index

ClassID:

142667 ⎘

F04B7/0015 - CPC Classification

Classification description:

Piston machines or pumps characterised by having positively-driven valving the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having a slidable movement

Recent Application in this class:

20210318193

2021-10-14

METHOD, SYSTEM, COMPUTER APPARATUS, AND STORAGE MEDIUM FOR INSPECTING OPERATION PERIOD OF VALVE BOX

20190293060

2019-09-26

Thick material pump

20190010934

2019-01-10

Volumetric pump

20160369787

2016-12-22

Over-center linkage

20150260182

2015-09-17

Pulsation damper

20150176578

2015-06-25

APPARAUTS FOR FLUID PUMPING

20140199194

2014-07-17

Fuel pump

20130017102

2013-01-17

Over-center linkage

20130001242

2013-01-03

Metering device and metering method

#10

20120224977

2012-09-06

Method and Apparatus for Fluid Pumping

#11

20120103179

2012-05-03

Pump unit

#12

20110206545

2011-08-25

Volumetric pump and its driving mechanism

#13

20110174152

2011-07-21

VALVE-CONTROLLED POSITIVE DISPLACEMENT MACHINE

#14

20070116587

2007-05-24

Volume-metering pump device

#15

20050063839

2005-03-24

Device for delivering fixed quantity of liquid

#16

16436356

2020-10-20

Multi-material frac valve poppet