ClassID:

146378

F15B2211/5159 - CPC Classification

Classification description:

Circuits for servomotor systems; Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a return line

Recent Application in this class:
#1
20210317852
2021-10-14

Pneumatic Actuating Element, Exhaust Air System, Housing Having an Exhaust Air System, Pneumatic Actuator

#2
20210207344
2021-07-08

HYDRAULIC SYSTEM FOR INCREASING OPERATION SPEED OF CONSTRUCTION MACHINERY BOOM

#3
20210180618
2021-06-17

Hydraulic system of working machine

#4
20200391846
2020-12-17

Spoiler droop function with mechanical feedback driving hydraulic valve

#5
20190360583
2019-11-28

Hydraulic flushing valve arrangement

#6
20190186101
2019-06-20

System for operating a circle drive gear of a machine

#7
20190119879
2019-04-25

Hydraulic system for working machine and control valve

#8
20180223879
2018-08-09

Pressure limiting device, in particular for an assist system for vehicles

#9
20180215116
2018-08-02

Residual load relief system for hydraulic compactors having rotary pumps

#10
20180156345
2018-06-07

Oil controlled valve

#11
20170363122
2017-12-21

Apparatus for recuperating hydraulic energy with energy-efficient replenishment of the rod sides of differential cylinders and simultaneous pressure intensification

#12
20170363112
2017-12-21

Device for recovering hydraulic energy by connecting two differential cylinders

#13
20170276155
2017-09-28

Hydraulic drive system for work machine

#14
20170227025
2017-08-10

Hydraulic drive device with load-dependent pressure distributor

#15
20170211597
2017-07-27

Hydraulic system and method for controlling an implement of a working machine

#16
20170107694
2017-04-20

Hydraulic excavator drive system

#17
20170023032
2017-01-26

Loop-flushing-system for hydrostatic apparatus

#18
20160363140
2016-12-15

Control valve device

#19
20160186787
2016-06-30

Forestry grapple with high pressure protection system

#20
20160090997
2016-03-31

Hydraulic system

#21
20150369262
2015-12-24

Fluid pressure control device

#22
20150260204
2015-09-17

Cylinder driving apparatus

#23
20150184683
2015-07-02

Actuator

#24
20150184681
2015-07-02

Actuator

#25
20150152887
2015-06-04

Fail-safe actuation system

#26
20150040555
2015-02-12

Hydraulic drive

#27
20150033719
2015-02-05

Reducing dig force in hydraulic implements

#28
20150013323
2015-01-15

Circuit pressure control device, hydraulic control circuit using circuit pressure control unit, and hydraulic control circuit of construction machine

#29
20140123847
2014-05-08

Hydraulic excavator

#30
20140053719
2014-02-27

Dual stage piloted force reduction valve

#31
20140026969
2014-01-30

Fail-safe actuation system

#32
20140018964
2014-01-16

Valve contamination dislodgement

#33
20140010688
2014-01-09

Hydraulic circuit for controlling booms of construction equipment

#34
20130283777
2013-10-31

Hydraulic control system having energy recovery

#35
20130248306
2013-09-26

Vibration control device for railroad vehicle

#36
20130160879
2013-06-27

Hydraulic system for controlling a work implement

#37
20130000288
2013-01-03

Hydraulic control system having variable pressure relief

#38
20120048409
2012-03-01

Hydraulic circuit for working machine

#39
20110192157
2011-08-11

Cylinder device

#40
20110168283
2011-07-14

Hydraulic Circuit For Working Machine

#41
20110120297
2011-05-26

Hydraulic Circuit

#42
20110088797
2011-04-21

Fluid-pressure actuator unit

#43
20090056531
2009-03-05

Lifting mechanism, and method for triggering a lifting mechanism

#44
20090031720
2009-02-05

Hydraulic circuit for heavy equipment having variable control device

#45
20080296522
2008-12-04

Relief pressure switching apparatus for hydraulic working machine

#46
20080245064
2008-10-09

Anti-saturation valve assembly for load sensing hydraulic system

#47
20070245889
2007-10-25

Hydraulic Control Arrangement

#48
20060249015
2006-11-09

Device for controlling a hydraulically driven motor