ClassID:

145973

F15B11/20 - CPC Classification

Classification description:

Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members

Sub-classes:
Recent Application in this class:
#1
20230332682
2023-10-19

Control system and method thereof for multispeed transmission

#2
20230167835
2023-06-01

Hydraulic Thruster

#3
20220074434
2022-03-10

Radial piston hydraulic motor and method for controlling radial piston hydraulic motor

#4
20220018367
2022-01-20

Hydraulic thruster

#5
20220003250
2022-01-06

Electro-hydrostatic actuator system

#6
20210381543
2021-12-09

Fluid-cable transmission for remote actuation

#7
20210329824
2021-10-28

Rear steering cylinder dampening

#8
20210293330
2021-09-23

Control system and method thereof for multispeed transmission

#9
20210222709
2021-07-22

Multi-Spring Position Control Apparatus and Methods

#10
20210172461
2021-06-10

Hydraulic actuation system for imparting rotation

#11
20210115648
2021-04-22

Heavy equipment boom system and method and hydraulic circuit therefor

#12
20210102626
2021-04-08

Hydraulic system of work machine and work machine

#13
20210046956
2021-02-18

Centering apparatus for hopper car doors

#14
20200391743
2020-12-17

Control apparatus for vehicle

#15
20200376710
2020-12-03

Concrete product machine apron plate gap adjustment

#16
20200362665
2020-11-19

SEQUENCER FOR WELLHEAD DEVICE

#17
20200298998
2020-09-24

Towing vehicle

#18
20200292068
2020-09-17

Hydraulic circuit, torque transmission device having a hydraulic circuit, and method for operating a hydraulic circuit

#19
20200284272
2020-09-10

Industrial apparatus comprising a pneumatic control valve

#20
20200277751
2020-09-03

Work machine

#21
20200224764
2020-07-16

Hydraulic system of work machine and work machine

#22
20200200194
2020-06-25

Downhole tractor comprising an improved hydraulic system

#23
20200157749
2020-05-21

Hydraulic system for a working machine

#24
20200122538
2020-04-23

RIDE CONTROL SYSTEMS AND METHODS FOR ROTARY CUTTING MACHINES

#25
20200080574
2020-03-12

Electrical power assisted device for controlling an aerial bucket with a hydraulic movement system

#26
20200040554
2020-02-06

Work machine and method for controlling the same

#27
20200025223
2020-01-23

Piston assembly for rephasing a fluid-driven actuator

#28
20200011353
2020-01-09

Mast with hydraulic circuit for assist cylinder

#29
20190309842
2019-10-10

Method for operating a pneumatic actuating system of a transmission and control device for carrying out the method

#30
20190249692
2019-08-15

Hydraulic valve assembly with forced circuit

#31
20190234514
2019-08-01

Hydraulic system for an automatic transmission of a motor vehicle

#32
20190224794
2019-07-25

In-port sequence valve

#33
20190219072
2019-07-18

Downhole tractor comprising two or more hydrualic supply lines

#34
20190211850
2019-07-11

Digital-switching fluidic power supply and hydrostatic transmission with regenerative brake

#35
20190195350
2019-06-27

ELECTRO-HYDRAULIC SYSTEM FOR THE ACTUATION OF MULTIPLE CLUTCHES AND GEAR SELECTORS WITH HIGH-PRECISION CONTROL OF SEVERAL SHIFT GEARBOX UNITS SIMULTANEOUSLY

#36
20190119884
2019-04-25

Working machine

#37
20190091746
2019-03-28

Simultaneous push-pull workstation for frame straightening

#38
20190063468
2019-02-28

Hydraulic pressure variation in a legged robot

#39
20190055964
2019-02-21

Hydraulic fluid power transmission

#40
20190032684
2019-01-31

Soft robots, soft actuators, and methods for making the same

#41
20190010966
2019-01-10

Intelligent boom control with rapid system cycling

#42
20190010029
2019-01-10

Expansion/contraction mechanism

#43
20190009702
2019-01-10

Transportation vehicle

#44
20190003585
2019-01-03

Control system and method thereof for multispeed transmission

#45
20190003580
2019-01-03

Control system and method thereof for multispeed transmission

#46
20190003579
2019-01-03

Control system and method thereof for multispeed transmission

#47
20190003578
2019-01-03

Control system and method thereof for multispeed transmission

#48
20180371986
2018-12-27

Connecting rod for an internal combustion engine with variable compression

#49
20180216638
2018-08-02

Wind turbine, control device for same, and control method for same

#50
20180214932
2018-08-02

Hydraulic knockout device

#51
20180187702
2018-07-05

Hydraulic machine unit and method for operating such a machine unit

#52
20180170716
2018-06-21

Hydraulic elevating platform having no guide rails and elevating method

#53
20170314581
2017-11-02

Fluid actuator arrangement

#54
20170314578
2017-11-02

Hydraulic pressure supply system

#55
20170306889
2017-10-26

Spacecraft nozzle comprising an improved deployment system

#56
20170218981
2017-08-03

Hydraulic pressure variation in a legged robot

#57
20170175782
2017-06-22

Construction machinery

#58
20170159679
2017-06-08

Hydraulic system of work machine and work machine

#59
20170122198
2017-05-04

Hydraulic valve and connection rod with the hydraulic valve

#60
20170089363
2017-03-30

Hydraulic alternating system for agricultural baler

#61
20170037594
2017-02-09

Working vehicle

#62
20170022790
2017-01-26

Annulus installed 6 zone control manifold

#63
20160258451
2016-09-08

Hydraulic cylinder drive system

#64
20160214158
2016-07-28

Simultaneous push-pull workstation for frame straightening

#65
20160032948
2016-02-04

Variable displacement piston-in-piston hydraulic unit

#66
20160003266
2016-01-07

Work machine

#67
20150107234
2015-04-23

Boom driving apparatus for construction machine

#68
20150033723
2015-02-05

Hydraulic system

#69
20140137548
2014-05-22

CONSTRUCTION MACHINERY

#70
20130180395
2013-07-18

Oil-pressure apparatus

#71
20110290514
2011-12-01

Mechanically controlled hydraulic system for an agricultural implement

#72
20110290513
2011-12-01

Hydraulic remote control for hydraulic system of an agricultural implement

#73
20110079006
2011-04-07

Method and apparatus for controlling a variable displacement hydraulic pump

#74
20100090638
2010-04-15

Actuator system

#75
20080029163
2008-02-07

Control line reducing hydraulic control system and control valve therefor

#76
20070289436
2007-12-20

HYDRAULIC SYSTEM WITH AN AUTOMATIC BOOM EXTENSION BLOCK

#77
20070169620
2007-07-26

Control device for a work device comprising a scoop held on an extension arm

#78
20070137192
2007-06-21

Circuit arrangement

#79
20070130928
2007-06-14

Method of ameliorating an end of stroke effect in an implement system of a machine and machine using same

#80
20070118252
2007-05-24

Apparatus and method for controlling elastic actuator

#81
20070062367
2007-03-22

HYDRAULIC CONTROL

#82
20070007039
2007-01-11

Arrangement for controlling rock drilling

#83
20060207419
2006-09-21

Apparatus and method for controlling elastic actuator

#84
20060201004
2006-09-14

Device for controlling hydraulic power units

#85
20060163508
2006-07-27

Hydraulic circuit in work vehicle

#86
20060123672
2006-06-15

Drive device of hydraulic cylinder for working

#87
20060011360
2006-01-19

Monitoring valve, rock drilling apparatus and a method for controlling at least two hydraulic actuators to such a monitoring valve and rock drilling apparatus

#88
20050144939
2005-07-07

Hydraulic actuating device for a convertible top assembly of a vehicle

#89
20050121878
2005-06-09

Ram-based positioning system

#90
20050081711
2005-04-21

Pneumatic actuator

#91
18774889
2025-11-04

External fluid bar for fluid driven cylinder

#92
17589947
2023-06-20

Sequence valve with a reverse free flow configuration integrated therewith