ClassID:

142830

F04B23/12 - 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 rotary-piston positive-displacement type

Recent Application in this class:
#1
20240116739
2024-04-11

SINGLE-MOTOR, DUAL-HYDRAULIC-CIRCUIT DRIVE SYSTEM FOR INDUSTRIAL MATERIALS-HANDLING VEHICLE AND METHOD FOR CONTROLLING THE SAME

#2
20220349395
2022-11-03

SUCTION ROD ASSEMBLY FOR WELL FLUID EXTRACTION AND RELATED METHODS

#3
20200405101
2020-12-31

Liquid foam delivery device

#4
20190360484
2019-11-28

Connection assembly with feed pump and elastic element

#5
20190323499
2019-10-24

Linear hydraulic pump for submersible applications

#6
20190048899
2019-02-14

Hydraulic device that controls pulsation in first oil by increasing rotation number of second pump

#7
20180320671
2018-11-08

Liquid lifting device

#8
20160348679
2016-12-01

Vacuum pump system including scroll pump and secondary pumping mechanism

#9
20160290334
2016-10-06

Polymeric materials

#10
20160201796
2016-07-14

Power transmission device

#11
20160146108
2016-05-26

Fuel pumping unit

#12
20160097404
2016-04-07

Bidirectional output mixed hydraulic power system

#13
20160010634
2016-01-14

Pumps

#14
20140338759
2014-11-20

Fuel pumping unit

#15
20140060680
2014-03-06

Hydraulic pressure supply system of automatic transmission

#16
20140010695
2014-01-09

Piston and scroll compressor assembly

#17
20130216401
2013-08-22

Pump device

#18
20130164150
2013-06-27

Multi-stage compressor

#19
20130052070
2013-02-28

Oscillating slide machine that pumps different fluid mediums at different pressures

#20
20110225962
2011-09-22

Variable Speed Hydraulic Pump Apparatus and Method

#21
20100119383
2010-05-13

Pump unit comprising a main pump and a charge pump with a variable pump capacity

#22
20100116375
2010-05-13

Adaptable bench top filling system

#23
20080289326
2008-11-27

Pump unit

#24
20080273992
2008-11-06

CAVITATION-DETERRING ENERGY-EFFICIENT FLUID PUMP SYSTEM AND METHOD OF OPERATION

#25
20080019843
2008-01-24

Multiple pump unit

#26
20070006581
2007-01-11

Pump unit

#27
20060272326
2006-12-07

Pump unit

#28
20060112686
2006-06-01

Pump unit

#29
20050100448
2005-05-12

Radial piston pump

#30
16198123
2020-06-02

Hydraulic pump assembly

#31
15357817
2018-11-27

Hydraulic pump assembly