ClassID:

145920

F15B11/006 - CPC Classification

Classification description:

Servomotor systems without provision for follow-up action; Circuits therefor Hydraulic "Wheatstone bridge" circuits, i.e. with four nodes, P-A-T-B, and on-off or proportional valves in each link

Recent Application in this class:
#1
20250075712
2025-03-06

PNEUMATIC SYSTEM AND PROCESS

#2
20240117821
2024-04-11

Pneumatic cylinder system

#3
20230364780
2023-11-16

Pivot joint

#4
20230139226
2023-05-04

Controller and method for hydraulic apparatus

#5
20210381530
2021-12-09

Compressed air supply device, system and procedure

#6
20210324883
2021-10-21

System and method for determining friction information

#7
20210317851
2021-10-14

Electrohydraulic poppet valve device control that maintains the last commanded position of a device upon power interruption and provides back-up position control

#8
20210131066
2021-05-06

Metering hydraulic control system for mining machine

#9
20200291970
2020-09-17

Method to automatically detect parameter for pressure dynamics control

#10
20190376531
2019-12-12

Dual valve fluid actuator assembly

#11
20190316605
2019-10-17

Actuator arrangement

#12
20190136880
2019-05-09

Method for operating a valve device, valve device and data storage medium with a computer program

#13
20190120264
2019-04-25

Method for the supply of compressed air to a compressed-air consumer, valve device and data carrier with a computer program

#14
20190093681
2019-03-28

Application-based control of a valve disk

#15
20190040882
2019-02-07

Electropneumatic valve assembly

#16
20190017521
2019-01-17

Two-stage valve arrangement for hydraulic control of a piston- cylinder arrangement of a high- or medium-voltage power switch

#17
20180306211
2018-10-25

Hydraulic system and method for controlling a hydraulic system

#18
20180135659
2018-05-17

Control valve and work vehicle having the control valve

#19
20180128607
2018-05-10

Method to automatically detect the area ratio of an actuator

#20
20180128292
2018-05-10

Control strategy for hydraulic actuator with a pair of independent metering valves

#21
20180128290
2018-05-10

Method to automatically detect parameter for pressure dynamics control

#22
20180002896
2018-01-04

Drive control method of hydraulic actuator of construction machine

#23
20170368393
2017-12-28

Explosion resistant electro-pneumatic controller

#24
20170234333
2017-08-17

Actuator controller and method for regulating the movement of an actuator

#25
20160377192
2016-12-29

Non-inert gas certified electronic controller

#26
20160312807
2016-10-27

Hydraulic system including independent metering valve with flowsharing

#27
20160084277
2016-03-24

Hydraulic system for a working machine and a method for controlling a hydraulic system

#28
20160061232
2016-03-03

Energy efficient fluid powered linear actuator with variable area

#29
20160061229
2016-03-03

Energy efficient fluid powered linear actuator with variable area and concentric chambers

#30
20150308078
2015-10-29

Automatic control system and method for joystick control-based construction equipment

#31
20150298730
2015-10-22

Pressurized medium assembly

#32
20150267720
2015-09-24

Modular combined electro-hydraulic multi-way valve system using compact two-way cartridge valves

#33
20150177741
2015-06-25

Fluidic actuator

#34
20150177740
2015-06-25

Controlled three-way proportional valve unit

#35
20150135699
2015-05-21

Hydraulic valve arrangement with control/regulating function

#36
20150135698
2015-05-21

Hydraulic valve arrangement with control/regulating function

#37
20150013322
2015-01-15

Fluid pressure control device

#38
20140260226
2014-09-18

Servo actuator load vector generating system

#39
20140230926
2014-08-21

Hydraulic safety and movement control system

#40
20140182725
2014-07-03

Piezoelectric actuated fluid valve

#41
20140033690
2014-02-06

MACHINE HYDRAULIC SYSTEM HAVING FINE CONTROL MODE

#42
20130318959
2013-12-05

Hydraulic Circuits with Energy Conservation Features for Overrunning Load Conditions

#43
20130299266
2013-11-14

Hydraulic Ride Control System with Manual Mode Safeguard

#44
20130098458
2013-04-25

HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS

#45
20130098011
2013-04-25

HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS

#46
20130042935
2013-02-21

Hydraulic switching mechanism for mobile hydraulics, mobile hydraulic machine and valve unit

#47
20120280152
2012-11-08

Valve arrangement

#48
20120260993
2012-10-18

Poppet valve assembly for controlling a pneumatic actuator

#49
20120180470
2012-07-19

Hydraulic system for energy regeneration in a work machine such as a wheel loader

#50
20120037251
2012-02-16

Fluidic System

#51
20120037250
2012-02-16

Valve device

#52
20110179946
2011-07-28

Proportional pressure controller

#53
20110174393
2011-07-21

Proportional valve assembly

#54
20110088785
2011-04-21

SAFETY FEATURE FOR STUCK VALVE

#55
20110017310
2011-01-27

FLUID VALVE ARRANGEMENT

#56
20100243927
2010-09-30

Valve arrangement

#57
20100175948
2010-07-15

HYDRAULIC ACTUATING CIRCUIT FOR POWER-ASSISTED STEERING, AND MOTOR VEHICLE EQUIPPED THEREWITH

#58
20100154399
2010-06-24

Method for recuperating potential energy during a lowering operation of a load

#59
20100146958
2010-06-17

System for controlling a hydraulic system

#60
20100126339
2010-05-27

ACTUATOR CONTROL DEVICE

#61
20100107623
2010-05-06

Hydraulic system having an external pressure compensator

#62
20100043418
2010-02-25

HYDRAULIC SYSTEM AND METHOD FOR CONTROL

#63
20100024411
2010-02-04

Hydraulic system having automated ride control activation

#64
20100024410
2010-02-04

Hydraulic system having regeneration modulation

#65
20090212244
2009-08-27

Pilot operated valve with fast closing poppet

#66
20090132136
2009-05-21

Method and device for controlling a fluid-actuated control system

#67
20090114284
2009-05-07

Detecting of faults in a valve system and a fault tolerant control

#68
20090048067
2009-02-19

Method and device for controlling a fluid-actuated control system

#69
20090026002
2009-01-29

Hydraulic power steering apparatus

#70
20090000854
2009-01-01

Device for controlling the steering of a commercial vehicle, and vehicle comprising one such device

#71
20080295681
2008-12-04

Hydraulic system having an external pressure compensator

#72
20080295508
2008-12-04

Force feedback poppet valve having an integrated pressure compensator

#73
20080216644
2008-09-11

Antagonistic fluid control system for active and passive actuator operation

#74
20080184877
2008-08-07

Control system for a hydraulic servomotor

#75
20080184876
2008-08-07

Hydraulic actuator having an auxiliary valve

#76
20080184875
2008-08-07

Valve assembly and a hydraulic actuator comprising the valve assembly

#77
20080184874
2008-08-07

Hydraulic actuator for a servomotor with an end lock function

#78
20080110166
2008-05-15

Energy recovery and reuse techniques for a hydraulic system

#79
20080110165
2008-05-15

Energy recovery and reuse methods for a hydraulic system

#80
20080066814
2008-03-20

Two-stage servo-valve

#81
20080042087
2008-02-21

Electrohydraulic valve control circuit with magnetic hysteresis compensation

#82
20080034957
2008-02-14

Hydraulic Actuator Control Circuit With Pressure Operated Counterbalancing Valves

#83
20080028924
2008-02-07

Hydraulic system with a cylinder isolation valve

#84
20080010982
2008-01-17

Control Valve for a Servo Steering System

#85
20070295924
2007-12-27

Fluid controller and a method of detecting an error in a fluid controller

#86
20070227136
2007-10-04

Hydraulic metering mode transitioning technique for a velocity based control system

#87
20070209724
2007-09-13

Control Ball Valve

#88
20070209503
2007-09-13

Hydraulic system with mechanism for relieving pressure trapped in an actuator

#89
20070186548
2007-08-16

Hydraulic regeneration system

#90
20070169471
2007-07-26

Vehicle steering mechanism

#91
20070130935
2007-06-14

Integrated valve assembly and computer controller for a distributed hydraulic control system

#92
20070130933
2007-06-14

Vibration control method and vibration control system for fluid pressure control circuit

#93
20070119298
2007-05-31

Shifting unit

#94
20070074510
2007-04-05

Hydraulic system having augmented pressure compensation

#95
20070056439
2007-03-15

Robustly stable servo-controlled metering poppet valve

#96
20070044650
2007-03-01

Valve having a hysteretic filtered actuation command

#97
20070044465
2007-03-01

Independent metering valve control system and method

#98
20070022871
2007-02-01

Electro-hydraulic metering valve with integral flow control

#99
20060266210
2006-11-30

Hydraulic system having a post-pressure compensator

#100
20060243129
2006-11-02

Valve gradually communicating a pressure signal

#101
20060243128
2006-11-02

Hydraulic system having a pressure compensator

#102
20060201321
2006-09-14

Hydraulic control arrangement

#103
20060201146
2006-09-14

Hydraulic control system with cross function regeneration

#104
20060162545
2006-07-27

Hydraulic cylinder device

#105
20060090462
2006-05-04

Energy regeneration system for working machinery

#106
20060090461
2006-05-04

Energy regeneration system for machines

#107
20060065867
2006-03-30

Electronically and hydraulically-actuated drain value

#108
20060054015
2006-03-16

Hydraulic control in a hydraulic system, especially for the operation of scrap cutters

#109
20060027092
2006-02-09

Hydraulic system with an actuator having independent meter-in meter-out control

#110
20050265852
2005-12-01

Fluid pressure control device

#111
20050252556
2005-11-17

Control ball valve

#112
20050211936
2005-09-29

Electrohydraulic valve servomechanism with adaptive resistance estimator

#113
20050211312
2005-09-29

Hydraulic system control method using a differential pressure compensated flow coefficient

#114
20050199295
2005-09-15

Electrohydraulic control device

#115
20050115303
2005-06-02

Hydraulic directional converter

#116
20050103006
2005-05-19

Power system and work machine using same

#117
20050087065
2005-04-28

Hydraulic system for a work machine

#118
20050044851
2005-03-03

Monoprolellant/hypergolic powered proportional actuator