ClassID:

146291

F15B2211/31582 - CPC Classification

Classification description:

Circuits for servomotor systems; Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having multiple pressure sources and a single output member

Recent Application in this class:
#1
20220136532
2022-05-05

Landing gear lifting/lowering EHA system

#2
20210285553
2021-09-16

Open center control valve configured to combine fluid flow received from multiple sources

#3
20210054592
2021-02-25

Hydraulic drive system for work machine

#4
20200190770
2020-06-18

Stick control system in construction machine

#5
20200096015
2020-03-26

Apparatus for controlling a hydraulic machine

#6
20190277310
2019-09-12

Driving method and driving device of fluid pressure cylinder

#7
20190055963
2019-02-21

Hydraulic circuit for controlling a movable component

#8
20190040878
2019-02-07

FOUR-WAY CONTROL VALVE FOR PNEUMATIC CHARGING AND DISCHARGING OF WORKING VESSEL

#9
20180002897
2018-01-04

Hydraulic circuit for construction machine

#10
20170191508
2017-07-06

Hydraulic apparatus and hydraulic appliance usable therein

#11
20170107695
2017-04-20

Hydraulic system for work machine, and work machine

#12
20170022687
2017-01-26

Hydraulic circuit for construction machinery

#13
20160333551
2016-11-17

Hydraulic circuit for construction machinery having floating function and method for controlling floating function

#14
20160252107
2016-09-01

Hydraulic excavator drive system

#15
20160251833
2016-09-01

HYDRAULIC DRIVE SYSTEM OF CONSTRUCTION MACHINE

#16
20150159678
2015-06-11

Flow control valve for construction machinery

#17
20150122114
2015-05-07

Device for controlling the movement of a hydraulic cylinder, particularly for hydraulic machines

#18
20150059332
2015-03-05

Hydraulic circuit for construction machine

#19
20150059331
2015-03-05

Hydraulic circuit for construction machine and control device therefor

#20
20120093624
2012-04-19

Work machine and control method for work machines

#21
20110179783
2011-07-28

Device to actively control the vibrations of an articulated arm to pump concrete

#22
20100319338
2010-12-23

Hydraulic control system for excavator

#23
20100276023
2010-11-04

Valve system for drilling systems

#24
20100071788
2010-03-25

Hydraulic system with a pressure reducing valve

#25
20090199552
2009-08-13

Hydraulic working machine

#26
20070251400
2007-11-01

Platen Press

#27
20070074509
2007-04-05

Hydraulic system for recovering potential energy

#28
20070056437
2007-03-15

Hydraulic control system for construction vehicle, particularly excavators

#29
20060162543
2006-07-27

Hydraulic working machine

#30
20060048508
2006-03-09

Oil pressure circuit for working machines

#31
20050087065
2005-04-28

Hydraulic system for a work machine

#32
20050072145
2005-04-07

Power conserving hydraulic pump bypass compensator circuit