ClassID:

146272

F15B2211/3122 - 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

Sub-classes:
Recent Application in this class:
#1
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2025-04-10

HYDRAULIC DISTRIBUTOR WITH COMPENSATION DEVICE FOR DIRECTIONAL VALVES

#2
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System, valve assembly, and methods for oscillation control of a hydraulic machine

#3
20210285470
2021-09-16

Automatic air bleeding system for hydraulics

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20210285466
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Redundant electrohydraulic positioning control system

#5
20210180618
2021-06-17

Hydraulic system of working machine

#6
20200271231
2020-08-27

Valve, hydraulic system and motor vehicle gearbox

#7
20190119879
2019-04-25

Hydraulic system for working machine and control valve

#8
20180372239
2018-12-27

Interlocking solenoid valve assembly and method

#9
20170306989
2017-10-26

Directional control valve

#10
20170175779
2017-06-22

Hydraulic system of work machine

#11
20150013320
2015-01-15

Hydraulic drive system

#12
20140245732
2014-09-04

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

#13
20140158922
2014-06-12

Solenoid valve assembly

#14
20140053719
2014-02-27

Dual stage piloted force reduction valve

#15
20130318958
2013-12-05

Control valve assembly

#16
20130298541
2013-11-14

Load energy assist and horsepower management system

#17
20130160443
2013-06-27

Hydraulic system with fluid flow summation control of a variable displacement pump and priority allocation of fluid flow

#18
20130139915
2013-06-06

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

#19
20110005625
2011-01-13

Solenoid valve assembly

#20
20100269935
2010-10-28

Valve system

#21
20100096576
2010-04-22

VALVE BLEED SYSTEM

#22
20100089045
2010-04-15

Hydraulic control circuit for construction machine

#23
20100071788
2010-03-25

Hydraulic system with a pressure reducing valve

#24
20090142201
2009-06-04

Hydraulic flow control system and method

#25
20090045384
2009-02-19

Tool with hydraulic valve system

#26
20050252326
2005-11-17

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

#27
20050204736
2005-09-22

Hydraulic control device for working machine