ClassID:

142665

F04B7/0007 - 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 rotating movement

Recent Application in this class:
#1
20240280101
2024-08-22

Reversible Reciprocating Pump

#2
20240068458
2024-02-29

INLINE FLUID DISPENSE PUMP ASSEMBLY

#3
20240058528
2024-02-22

Rotational metering pump for medication patch

#4
20230366386
2023-11-16

Rotational metering gasket pump

#5
20230310737
2023-10-05

ROTATIONAL METERING PUMP FOR INSULIN PATCH

#6
20230141287
2023-05-11

Fluid pump with pressure relief path

#7
20230075848
2023-03-09

OSCILLATORY-ROTARY LIQUID DISPENSING DEVICE WITH SPRING, AND ASSOCIATED METHOD

#8
20220252058
2022-08-11

Integrated electric-to-hydraulic conversion machine

#9
20220160958
2022-05-26

Rotational metering pump for insulin patch

#10
20200360601
2020-11-19

Rotational metering pump for insulin patch

#11
20200355177
2020-11-12

Pressure adjustment apparatus and method

#12
20200222626
2020-07-16

Rotational metering pump for insulin patch

#13
20180257620
2018-09-13

Hydraulic brake actuators and related methods

#14
20170234307
2017-08-17

VOLUMETRIC PUMP WITH BLEED MECHANISM

#15
20170145992
2017-05-25

Piston pump

#16
20170138356
2017-05-18

Positive-displacement piston pump and rotary distribution means

#17
20170130707
2017-05-11

Positive-displacement piston pump and associated delivery control method

#18
20170022811
2017-01-26

Fluid rotary machine

#19
20160195074
2016-07-07

Rotary swinging subassembly and device for cointegrated fluidic multiplexing and volumetric pumping of a fluid

#20
20160032917
2016-02-04

Device for conserving power in a piston compressor

#21
20150098850
2015-04-09

Food dispenser and method for portioning and dispensing free-flowing foods

#22
20150064036
2015-03-05

Piston pump

#23
20140197247
2014-07-17

Pump and injector for liquid chromatography

#24
20140150872
2014-06-05

Rotary control valve for reverse osmosis feed water pump with energy recovery

#25
20120265128
2012-10-18

Continuously conveying infusion pump

#26
20120224977
2012-09-06

Method and Apparatus for Fluid Pumping

#27
20120118138
2012-05-17

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

#28
20110274563
2011-11-10

DOSING PUMP

#29
20110206545
2011-08-25

Volumetric pump and its driving mechanism

#30
20100327021
2010-12-30

DOSAGE AND TRANSFER VALVE, DOSING PUMP COMPRISING SUCH A PIVOTING VALVE, AND INSTALLATION FOR PRODUCING DAIRY OR CHEESE PRODUCTS, COMPRISING AT LEAST ONE SUCH PUMP

#31
20100024906
2010-02-04

Serial capillary pump

#32
20090196775
2009-08-06

Volumetric pump comprising a driving mechanism

#33
20090071974
2009-03-19

Liquid delivery method and apparatus

#34
20090065074
2009-03-12

Distribution valve for concrete transport pump

#35
20080038131
2008-02-14

Piston pump for thick materials

#36
20060008372
2006-01-12

Integrated pump and wash pump

#37
20050019187
2005-01-27

Internal screw positive rod displacement metering pump