ClassID:

142831

F04B23/14 - CPC Classification

Classification description:

Pumping installations or systems; Combinations of two or more pumps the pumps being of different types at least one pump being of the non-positive-displacement type

Recent Application in this class:
#1
20260028973
2026-01-29

MULTI-PRESSURE INTEGRATED AIR PUMP

#2
20250198253
2025-06-19

CEMENTING EQUIPMENT AND CONTROL METHOD

#3
20250084838
2025-03-13

VARIABLE DISPLACEMENT PUMP (VDP) SYSTEMS WITH DUAL DRY OUT PUMPS

#4
20250084795
2025-03-13

VARIABLE DISPLACEMENT PUMP (VDP) SYSTEMS WITH DRY-OUT CENTRIFUGAL MAIN PUMP

#5
20240167464
2024-05-23

HIGH-PRESSURE, HIGH-FLOW INFLATABLE MOVEMENT

#6
20230332587
2023-10-19

MULTI-PRESSURE INTEGRATED AIR PUMP

#7
20210164399
2021-06-03

Fluid supply system

#8
20210003120
2021-01-07

Multi-pressure integrated air pump

#9
20200340463
2020-10-29

Bent axis hydraulic pump with centrifugal assist

#10
20200072230
2020-03-05

Integrally geared compressor having a combination of centrifugal and positive displacement compression stages

#11
20170292525
2017-10-12

Integrally geared compressor having a combination of centrifugal and positive displacement compression stages

#12
20170184110
2017-06-29

Fluid conditioning module

#13
20170030360
2017-02-02

Water pumping system for rooftop applications and the like

#14
20160281697
2016-09-29

Fuel system having serially arranged in-tank pumps

#15
20160146108
2016-05-26

Fuel pumping unit

#16
20160123316
2016-05-05

Pipe pump system

#17
20160097404
2016-04-07

Bidirectional output mixed hydraulic power system

#18
20150204333
2015-07-23

Water pumping system for rooftop applications and the like

#19
20150125313
2015-05-07

Pressure compensation control of a fixed displacement pump in a pumping and metering system and associated method

#20
20150075634
2015-03-19

Hydromechanical pressure compensation control of a variable displacement pump in a centrifugal pumping and metering system and associated method

#21
20140360058
2014-12-11

Pump apparatus and underwater trenching apparatus

#22
20140311463
2014-10-23

Electric supercharging device

#23
20140093401
2014-04-03

Jet pump with centralized nozzle

#24
20130298754
2013-11-14

Axial piston machine

#25
20130216401
2013-08-22

Pump device

#26
20130047600
2013-02-28

Charged hydraulic system

#27
20120087809
2012-04-12

Pipe pump system

#28
20110239993
2011-10-06

DIESEL FEEDSIDE BOOST PUMP

#29
20110223039
2011-09-15

PUMP ASSEMBLY AND METHOD

#30
20110052421
2011-03-03

METHOD AND DEVICE FOR CONTROLLING THE CONDENSER COOLING WATER OF A STEAM-JET VACUUM PUMP

#31
20100287977
2010-11-18

Oil pump for a refrigeration compressor

#32
20100284832
2010-11-11

Regulatable coolant pump

#33
20100276019
2010-11-04

Solution feeding device

#34
20090113888
2009-05-07

Charged hydraulic system

#35
20050265859
2005-12-01

Fluid supply unit having an integral pressure generator and pressure booster

#36
20050128869
2005-06-16

Apparatus and method for injecting a liquid dye into a polymer melt

#37
19293033
2026-02-10

Dual-duct air pump

#38
16198123
2020-06-02

Hydraulic pump assembly