ClassID:

142733

F04B9/12 - CPC Classification

Classification description:

Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air

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

PUMP AND DRIVE ASSEMBLY

#2
20260043327
2026-02-12

Pneumatic Pump Cycle Counter

#3
20260016001
2026-01-15

REDUCED SIZE FLUID TRANSFER AND DEPRESSURIZATION APPARATUS, CONTROL, AND ASSOCIATED METHODS

#4
20240200546
2024-06-20

MEDICAL FLUID THERAPY MACHINE INCLUDING PNEUMATIC PUMP BOX AND ACCUMULATORS THEREFORE

#5
20240011512
2024-01-11

REDUCED SIZE FLUID TRANSFER AND DEPRESSURIZATION APPARATUS, CONTROL, AND ASSOCIATED METHODS

#6
20230184235
2023-06-15

PUMP AND DRIVE ASSEMBLY

#7
20230053955
2023-02-23

Fluid pump having self-cleaning structure

#8
20220111389
2022-04-14

SAMPLE PREPARATION DEVICE

#9
20220082095
2022-03-17

Low pressure starter device for pneumatic pumps

#10
20210199109
2021-07-01

Pneumatic pump control system

#11
20210077726
2021-03-18

PRESSURE CONTAINER FOR DRIVING A MEDICAL DEVICE

#12
20190308226
2019-10-10

Fluid pump having self-cleaning air inlet structure

#13
20190211814
2019-07-11

Distribution unit

#14
20190154028
2019-05-23

Pumping installation comprising a pneumatic pump and a valve for regulating supply of the pump with compressed gas

#15
20190128437
2019-05-02

Pressure-limiting unit for a pressure booster as well as a pressure booster for driving hydraulic tools

#16
20190082712
2019-03-21

System for conveying and dispensing heated food material

#17
20190070610
2019-03-07

Sample preparation device

#18
20180328351
2018-11-15

METERING DEVICE

#19
20180147354
2018-05-31

Pressure container for driving a medical device

#20
20180117233
2018-05-03

Medical fluid therapy machine including pneumatic pump box and accumulators therefore

#21
20180023713
2018-01-25

PILOT VALVE

#22
20170356436
2017-12-14

Pump assembly

#23
20170226824
2017-08-10

METHOD AND SYSTEM FOR OPERATING A WELL TREATMENT CHEMICAL PUMP

#24
20170082102
2017-03-23

Zero emission reciprocating drive pump

#25
20170022983
2017-01-26

Air operated pump

#26
20160305424
2016-10-20

Pump having a cap retaining a diaphragm in a receptacle

#27
20160169223
2016-06-16

Linear displacement pump with position sensing and related systems and methods

#28
20160160856
2016-06-09

Backup lubricant supply system

#29
20160115953
2016-04-28

High-pressure pump

#30
20160061197
2016-03-03

Thermal-operated pump

#31
20150308421
2015-10-29

Compressed gas motor for operation of a lavage system

#32
20150107709
2015-04-23

Microdevice structure of microchannel chip

#33
20140154103
2014-06-05

Air motor having a programmable logic controller interface and a method of retrofitting an air motor

#34
20140093395
2014-04-03

METHOD FOR COMPRESSING GASES USING SAME GAS AS WORKING FLUID

#35
20140053537
2014-02-27

Air driven reductant delivery system

#36
20140033910
2014-02-06

Method to prevent debris build-up on reciprocating air motor pilot valves

#37
20130287598
2013-10-31

Gas compression system

#38
20120315163
2012-12-13

Air-driven hydraulic pump with pressure control

#39
20120247591
2012-10-04

High-pressure pump

#40
20120107142
2012-05-03

Internally supplied air jet cooling for a hydraulic pump

#41
20110253743
2011-10-20

Apparatus and System for Dispensing Liquids

#42
20110135522
2011-06-09

Valve body for pumps

#43
20110129392
2011-06-02

Micropump device

#44
20100329902
2010-12-30

Pneumatic motorized multi-pump system

#45
20100170689
2010-07-08

Hydraulic aggregate for hydraulic power wrenches

#46
20090169401
2009-07-02

TWO-STAGE AIR POWERED PUMP

#47
20080308178
2008-12-18

Apparatus and system for dispensing liquids

#48
20080253906
2008-10-16

Magnetically sequenced pneumatic motor

#49
20080213105
2008-09-04

Reciprocating piston pump with air valve, detent and poppets

#50
20080206066
2008-08-28

Reciprocating pump with electronically monitored air valve having battery and solenoid electronic monitoring

#51
20050100452
2005-05-12

Infusion pump system of fluid for medical purposes

#52
16113160
2019-11-26

Follower plate geometry