ClassID:

145926

F15B11/028 - CPC Classification

Classification description:

Servomotor systems without provision for follow-up action; Circuits therefor; Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force

Sub-classes:
Recent Application in this class:
#1
20250354570
2025-11-20

Hydraulic System

#2
20250198429
2025-06-19

Hydraulic System

#3
20250027514
2025-01-23

A HYDRAULIC DEVICE

#4
20240360848
2024-10-31

DOUBLE ACTING HITCH HYDRAULIC VALVE ASSEMBLY

#5
20240344297
2024-10-17

Work Machine

#6
20240287763
2024-08-29

Work Machine

#7
20240271640
2024-08-15

FLUID PRESSURE CONTROL DEVICE

#8
20240218887
2024-07-04

Method for hydraulically lowering tools onto a surface of an object

#9
20240150161
2024-05-09

Working equipment with capabilities of preventing buckling of hydraulic cylinder

#10
20230323976
2023-10-12

Positioning valve control system

#11
20230174353
2023-06-08

Lifting mechanism

#12
20230099778
2023-03-30

Control device and hydraulic system including the same

#13
20230084767
2023-03-16

Construction machine

#14
20220282450
2022-09-08

Construction machine

#15
20220260094
2022-08-18

Hydraulic power system for downhole device and downhole device

#16
20220186794
2022-06-16

Actuation method for a hydraulic system with a pump and multiple valves, and hydraulic system

#17
20220159896
2022-05-26

Negative downforce system for ground engaging machinery

#18
20220145909
2022-05-12

Hydraulic power system and method for controlling same

#19
20220056914
2022-02-24

High-low system for balers, compactors and transfer station compactors

#20
20210395061
2021-12-23

Clamp force control system for lift truck attachment with secondary hydraulic force control circuit

#21
20210317636
2021-10-14

Construction machine

#22
20210262200
2021-08-26

Construction machine

#23
20210207345
2021-07-08

Work machine

#24
20210129677
2021-05-06

Electropneumatically regulated control of a current collector

#25
20200354926
2020-11-12

Slewing hydraulic work machine

#26
20200325914
2020-10-15

Hydraulic systems and methods for nested pressure regulating valves

#27
20200291613
2020-09-17

Hydraulic system

#28
20200271135
2020-08-27

Device for controlling a pressing force of a current collector having a relay valve

#29
20200263708
2020-08-20

Time-based power boost control system

#30
20200232577
2020-07-23

PRESSURE REGULATING STARTER VALVE

#31
20200149561
2020-05-14

Hydraulic power system and method for controlling same

#32
20200056633
2020-02-20

Pilot valve assembly with orientation adjustment

#33
20200056350
2020-02-20

CONTROL DEVICE FOR HYDRAULIC MACHINE

#34
20200054506
2020-02-20

Wheelchair lift with low energy consumption

#35
20200011030
2020-01-09

Hydraulic work machine

#36
20190376531
2019-12-12

Dual valve fluid actuator assembly

#37
20190345692
2019-11-14

Construction machine

#38
20190338494
2019-11-07

Construction machine

#39
20190249396
2019-08-15

Hydraulic drive device for work vehicle

#40
20190219070
2019-07-18

Motor control device

#41
20190152497
2019-05-23

CONTROLLER

#42
20190143540
2019-05-16

Actuator device and control method

#43
20190113427
2019-04-18

PROPORTIONAL AIR PRESSURE CONTROL FOR A MATERIALS TESTING SYSTEM

#44
20190113031
2019-04-18

Unload circuit

#45
20190112786
2019-04-18

Pump control system of work machine

#46
20190106300
2019-04-11

Crane

#47
20190077425
2019-03-14

RAILWAY VEHICLE VIBRATION DAMPING DEVICE

#48
20190024811
2019-01-24

Pilot type switching valve

#49
20180298922
2018-10-18

VALVE DEVICE

#50
20180292278
2018-10-11

Method for estimating an external force acting on an electrohydrostatic actuator

#51
20180202467
2018-07-19

Hydraulic drive device and method for controlling the same

#52
20180155171
2018-06-07

Clamp force control system for lift truck attachment with secondary hydraulic force control circuit

#53
20180119391
2018-05-03

Hydraulic drive system of construction machine

#54
20180106278
2018-04-19

Construction machine

#55
20180106277
2018-04-19

Valve device and fluid pressure control device

#56
20180031006
2018-02-01

Fluid pressure control device

#57
20180002000
2018-01-04

ELECTRO-HYDROSTATIC ACTUATOR SYSTEM FOR RAISING AND LOWERING AIRCRAFT LANDING GEAR

#58
20170292243
2017-10-12

Construction machine

#59
20170275852
2017-09-28

Hydraulic control system for construction machine

#60
20170211597
2017-07-27

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

#61
20170191506
2017-07-06

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

#62
20170107694
2017-04-20

Hydraulic excavator drive system

#63
20170089366
2017-03-30

Hydraulic system of work machine

#64
20170009784
2017-01-12

Hydraulic control system and method

#65
20160312807
2016-10-27

Hydraulic system including independent metering valve with flowsharing

#66
20160265559
2016-09-15

METERLESS HYDRAULIC SYSTEM HAVING IMPROVED FORCE MODULATION

#67
20160251830
2016-09-01

HYDRAULIC SYSTEM OF CONSTRUCTION EQUIPMENT, HAVING FLOAT FUNCTION

#68
20160138623
2016-05-19

Method for controlling a lifting jack for an aircraft engine nacelle, a jack-type lifting system implementing the method and the thus equipped nacelle

#69
20160138619
2016-05-19

Conserve Energy Through Independent Pump Control in a Hydraulic System

#70
20160090997
2016-03-31

Hydraulic system

#71
20160084274
2016-03-24

System to pump fluid and control thereof

#72
20160047399
2016-02-18

Method, device, and system for controlling hydraulic pump of construction machine

#73
20160047398
2016-02-18

Apparatus for controlling hydraulic pump for construction machine

#74
20160040690
2016-02-11

Drive control system of operating machine, operating machine including drive control system, and drive control method of operating machine

#75
20160003336
2016-01-07

Modular hydrostatic transmission

#76
20160001795
2016-01-07

Actuator unit

#77
20150300378
2015-10-22

Hydraulic control device for work machine

#78
20150299987
2015-10-22

Construction machine

#79
20150275930
2015-10-01

Pump device and hydraulic actuator

#80
20150275929
2015-10-01

Pump device and hydraulic actuator

#81
20150275468
2015-10-01

Hydraulic system for working machine

#82
20150226234
2015-08-13

Hydraulic actuator system

#83
20150152894
2015-06-04

Actuator unit

#84
20150040555
2015-02-12

Hydraulic drive

#85
20150013323
2015-01-15

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

#86
20140345988
2014-11-27

Method for optimizing the pressure setting accuracy

#87
20140123847
2014-05-08

Hydraulic excavator

#88
20140053719
2014-02-27

Dual stage piloted force reduction valve

#89
20140033697
2014-02-06

METERLESS HYDRAULIC SYSTEM HAVING FORCE MODULATION

#90
20130340744
2013-12-26

Solar generator and hydraulic control seat valve

#91
20130160879
2013-06-27

Hydraulic system for controlling a work implement

#92
20130144496
2013-06-06

Backhoe loader

#93
20130000288
2013-01-03

Hydraulic control system having variable pressure relief

#94
20120291873
2012-11-22

Hydraulic circuit

#95
20110202232
2011-08-18

Hydraulic Lift System And Control Method

#96
20110192157
2011-08-11

Cylinder device

#97
20110179946
2011-07-28

Proportional pressure controller

#98
20110061755
2011-03-17

Hydraulic circuit system for hydraulic excavator

#99
20110030363
2011-02-10

Open center hydraulic system

#100
20100229970
2010-09-16

Valve apparatus

#101
20100132908
2010-06-03

Position-controlled or pressure-controlled device for the hydraulic positioning of components

#102
20100126339
2010-05-27

ACTUATOR CONTROL DEVICE

#103
20090266429
2009-10-29

Hydraulic pressure control apparatus

#104
20090203480
2009-08-13

DEVICE FOR CONTROLLING A FLUID-ACTIVATED DOUBLE-ACTION OPERATING CYLINDER

#105
20090199703
2009-08-13

POSITIONER FOR DOUBLE-ACTING PNEUMATIC ACTUATOR, DOUBLE-ACTING PNEUMATIC ACTUATOR AND METHOD FOR OPERATING THE DOUBLE-ACTING PNEUMATIC ACTUATOR

#106
20090102273
2009-04-23

Hydraulic drive device for vertical pivoting movement of load carrying platform

#107
20090064673
2009-03-12

Hydraulic control device

#108
20090056531
2009-03-05

Lifting mechanism, and method for triggering a lifting mechanism

#109
20090031720
2009-02-05

Hydraulic circuit for heavy equipment having variable control device

#110
20080185051
2008-08-07

Dunnage airbag inflation circuit

#111
20080010982
2008-01-17

Control Valve for a Servo Steering System

#112
20070277519
2007-12-06

Lifting gear valve arrangement

#113
20070245889
2007-10-25

Hydraulic Control Arrangement

#114
20070145314
2007-06-28

Modular valve system

#115
20070044465
2007-03-01

Independent metering valve control system and method

#116
20070012171
2007-01-18

Hydraulic drive

#117
20060102241
2006-05-18

Suspension device

#118
20060054015
2006-03-16

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

#119
20050144939
2005-07-07

Hydraulic actuating device for a convertible top assembly of a vehicle

#120
20050144938
2005-07-07

Hydraulic drive unit

#121
20050132702
2005-06-23

Continuously variable torque shredder drive

#122
20050098755
2005-05-12

Valve arrangement for hydraulic consumer

#123
20050098401
2005-05-12

Enhanced computer optimized adaptive suspension system and method

#124
20050091971
2005-05-05

Balancing vertical load device for a motor

#125
20050011190
2005-01-20

Hydraulic active boom suspension for a telehandler

#126
18890698
2026-02-10

Actuator load and slew rate limiting via pressure throttling shutoff valve

#127
17000957
2021-10-12

High-low hydraulic system for balers, compactors and transfer station compactors

#128
16545324
2022-02-15

Negative downforce system for ground engaging machinery

#129
16523654
2021-12-07

Apparatus and methods for making food products with improved hydraulic controls