ClassID:

146273

F15B2211/3127 - CPC Classification

Classification description:

Circuits for servomotor systems; Directional control characterised by the positions of the valve element; Special positions other than the pump port being connected to working ports or the working ports being connected to the return line Floating position connecting the working ports and the return line

Recent Application in this class:
#1
20250035133
2025-01-30

FLOATING CONTROL SYSTEM FOR FIXED DISPLACEMENT PUMP SYSTEM

#2
20240102261
2024-03-28

BOOM CONTROL SYSTEM OF WORK MACHINE

#3
20240026908
2024-01-25

Arrangement for operating a hydraulic consumer

#4
20220242295
2022-08-04

Closed center hoist valve with snubbing

#5
20220071089
2022-03-10

Controlled float on an agricultural harvester for header leveling

#6
20210372085
2021-12-02

Drift-prevention valve device, blade device, and working machine

#7
20210285553
2021-09-16

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

#8
20210088146
2021-03-25

Hydraulic control valve unit

#9
20200362884
2020-11-19

Hydraulic system for working machine

#10
20200337240
2020-10-29

Controlled float on an agricultural harvester for header leveling

#11
20200318755
2020-10-08

VEHICLE MOUNTABLE ARM FOR VALVE OPERATING MACHINE

#12
20200271231
2020-08-27

Valve, hydraulic system and motor vehicle gearbox

#13
20200232180
2020-07-23

Construction machine

#14
20200003332
2020-01-02

Method of controlling a three-position slide valve

#15
20190277411
2019-09-12

Hydraulic control valve unit

#16
20190211849
2019-07-11

Fluid power distribution and control system

#17
20190078702
2019-03-14

Vehicle mountable arm for valve operating machine

#18
20190056036
2019-02-21

Spool valve

#19
20180180068
2018-06-28

Hydraulic system for working machine

#20
20170211597
2017-07-27

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

#21
20170191506
2017-07-06

System for controlling the supply of hydraulic fluid to a work vehicle implement

#22
20170175779
2017-06-22

Hydraulic system of work machine

#23
20160362034
2016-12-15

Hoist device for dump truck

#24
20160348798
2016-12-01

Rotary valve with brake mode

#25
20160333551
2016-11-17

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

#26
20160230370
2016-08-11

Hydraulic system and working machine including the same

#27
20160201823
2016-07-14

Vehicle mountable arm for valve operating machine

#28
20160186787
2016-06-30

Forestry grapple with high pressure protection system

#29
20160090997
2016-03-31

Hydraulic system

#30
20150323096
2015-11-12

Vehicle mountable arm for valve operating machine

#31
20150308625
2015-10-29

Hydraulic control arrangement for a plurality of actuators

#32
20150136251
2015-05-21

Hydraulic control assembly

#33
20150101676
2015-04-16

Valve block having a valve assembly

#34
20150015054
2015-01-15

Transport vehicle

#35
20140245732
2014-09-04

Proportional directional control valve, and hydraulic circuit and hydropneumatic suspension system having such a valve

#36
20140076440
2014-03-20

Electro-hydraulic interactive double feedback loop

#37
20130255244
2013-10-03

Hydraulic system for construction machine including emergency control unit for electric hydraulic pump

#38
20130139915
2013-06-06

Hydraulic two-way valve for the lifting mechanism of an agricultural vehicle

#39
20120326068
2012-12-27

Vehicle mountable arm for valve operating machine

#40
20120216877
2012-08-30

Electro-hydraulic sensor fail safe

#41
20120186243
2012-07-26

HYDRAULIC SYSTEM HAVING AT LEAST ONE DRIVE MACHINE

#42
20120152107
2012-06-21

Flow regeneration hydraulic circuit

#43
20120095596
2012-04-19

MODULAR APPARATUSES

#44
20110297860
2011-12-08

Vehicle mountable arm for valve operating machine

#45
20110253239
2011-10-20

Active implement down force system with automatic latching of tractor power beyond pressure

#46
20110202232
2011-08-18

Hydraulic Lift System And Control Method

#47
20110023477
2011-02-03

Hydrostatic circuit lock valve components, circuits, systems, and method

#48
20100269935
2010-10-28

Valve system

#49
20100083651
2010-04-08

Circuit for controlling a double-action hydraulic drive cylinder

#50
20100037604
2010-02-18

Fluid power distribution and control system

#51
20090267010
2009-10-29

Vehicle mountable arm for valve operating machine

#52
20090266072
2009-10-29

Hydraulic reversing fan valve and machine using same

#53
20090173565
2009-07-09

Method and apparatus for enhancing vehicle performance

#54
20090165457
2009-07-02

Double redundancy electro hydrostatic actuator system

#55
20090145123
2009-06-11

Hydraulic circuit having holding valve of external pilot pressure operation type

#56
20090056531
2009-03-05

Lifting mechanism, and method for triggering a lifting mechanism

#57
20090025947
2009-01-29

Method, arrangement and valve for controlling rock drilling

#58
20090007772
2009-01-08

Working machine, and quick load-dropping method

#59
20090001300
2009-01-01

Directional control valve device and fluid pressure cylinder device

#60
20080141669
2008-06-19

Device for increasing pressure in cylinders with control unit

#61
20080121101
2008-05-29

Double check valve having floating function

#62
20080016861
2008-01-24

Hydraulic controller for working machine

#63
20070235078
2007-10-11

Hydraulic supply systems

#64
20070199440
2007-08-30

Hydraulic system for utility vehicles, in particular agricultural tractors

#65
20070151235
2007-07-05

Actuator system having a valve manifold

#66
20070137923
2007-06-21

Method and apparatus for enhancing vehicle performance

#67
20070089408
2007-04-26

HYDRAULIC CONTROLLER FOR WORKING MACHINE

#68
20070056277
2007-03-15

Travel vibration suppressing device for working vehicle

#69
20060156914
2006-07-20

Hydraulic control

#70
20060081121
2006-04-20

Hydraulic valve arrangement

#71
20050252326
2005-11-17

Device for driving a plurality of hydraulic shift cylinders and hydraulic supply system for a twin-clutch transmission

#72
20050204736
2005-09-22

Hydraulic control device for working machine

#73
20050132702
2005-06-23

Continuously variable torque shredder drive

#74
20050051026
2005-03-10

Valve arrangement and hydraulic drive

#75
20050044849
2005-03-03

Hydraulic control arrangement for a mobile work machine

#76
20050039805
2005-02-24

Spool-type hydraulic directional control valve having reduced cavitation

#77
14215974
2016-08-30

Enabling valve having separate float and lift down positions