ClassID:

146287

F15B2211/31558 - 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 an output member and a return line having a single output member

Recent Application in this class:
#1
20200362884
2020-11-19

Hydraulic system for working machine

#2
20200256479
2020-08-13

Steam valve driving apparatus

#3
20180180068
2018-06-28

Hydraulic system for working machine

#4
20180051444
2018-02-22

Hydraulic control system of construction machine

#5
20170023032
2017-01-26

Loop-flushing-system for hydrostatic apparatus

#6
20150330413
2015-11-19

Hydraulic circuit for construction machine

#7
20150247305
2015-09-03

Construction machinery

#8
20150152894
2015-06-04

Actuator unit

#9
20150152887
2015-06-04

Fail-safe actuation system

#10
20150121860
2015-05-07

Hydraulic drive circuit

#11
20150040555
2015-02-12

Hydraulic drive

#12
20150033719
2015-02-05

Reducing dig force in hydraulic implements

#13
20150007557
2015-01-08

Boom driving device

#14
20140373519
2014-12-25

Electro-hydraulic system with float function

#15
20140196627
2014-07-17

Railcar damping device

#16
20140158469
2014-06-12

Control device for a hydraulic elevator drive

#17
20140026969
2014-01-30

Fail-safe actuation system

#18
20130248306
2013-09-26

Vibration control device for railroad vehicle

#19
20130167522
2013-07-04

Hydraulic circuit for construction machine

#20
20130160879
2013-06-27

Hydraulic system for controlling a work implement

#21
20130152293
2013-06-20

Liquid-operated actuator assembly, particularly for a flush toilet, and flush toilet incorporating the assembly

#22
20130129460
2013-05-23

Work implement control system

#23
20120141223
2012-06-07

Supply and resetting hydraulic unit for a lifting assembly with two separate simultaneously actuated powered bearings

#24
20110284241
2011-11-24

Overriding a primary control subsystem of a downhole tool

#25
20110094280
2011-04-28

Apparatus for hydraulically actuating processing machines such as metal forming machines and method for actuating such metal forming machines

#26
20110072821
2011-03-31

Control Device and Method for a Quick-Acting Gate Valve of a Steam Turbine

#27
20110060508
2011-03-10

Method for controlling a hydraulic system

#28
20090283276
2009-11-19

Overriding a primary control subsystem of a downhole tool

#29
20090235921
2009-09-24

Hydraulic control device

#30
20090217653
2009-09-03

Control system for recovering swing motor kinetic energy

#31
20080296522
2008-12-04

Relief pressure switching apparatus for hydraulic working machine

#32
20080141669
2008-06-19

Device for increasing pressure in cylinders with control unit

#33
20060288863
2006-12-28

Hydraulic circuit for working machine

#34
20060081121
2006-04-20

Hydraulic valve arrangement