ClassID:

145935

F15B11/0423 - 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 speed by means in the feed line, i.e. "meter in" by controlling pump output or bypass, other than to maintain constant speed

Recent Application in this class:
#1
20260022712
2026-01-22

HYDRAULIC DRIVE DEVICE

#2
20250186274
2025-06-12

HYDRAULIC CIRCUIT FOR A PATIENT HANDLING APPARATUS

#3
20240315155
2024-09-26

Implement descending stability control method and system and tractor

#4
20240191727
2024-06-13

Flow self-compensating load sensing pump/valve coordinated electro-hydraulic system and control method

#5
20240115440
2024-04-11

Hydraulic circuit for a patient handling apparatus

#6
20240082079
2024-03-14

Hydraulic valve and system

#7
20230358022
2023-11-09

Work machine

#8
20230184265
2023-06-15

Work machine

#9
20230149231
2023-05-18

Hydraulic valve and system

#10
20220373002
2022-11-24

Over-pressure protection system

#11
20220112688
2022-04-14

Hydraulic control circuit for working machine

#12
20220055872
2022-02-24

Work vehicle

#13
20210332832
2021-10-28

Hydraulic system for baler implement gate

#14
20210277630
2021-09-09

Hydraulic drive apparatus for work machine

#15
20210270294
2021-09-02

A HYDRAULIC SYSTEM FOR A LOAD HANDLING VEHICLE

#16
20210121339
2021-04-29

Hydraulic circuit for a patient handling apparatus

#17
20210121338
2021-04-29

Hydraulic valve and system

#18
20200355204
2020-11-12

Over-pressure protection system

#19
20200182265
2020-06-11

Hydraulic system

#20
20200165797
2020-05-28

Dynamic open center hydraulic system control

#21
20200157764
2020-05-21

Shovel

#22
20200132093
2020-04-30

Over-pressure protection system

#23
20200054506
2020-02-20

Wheelchair lift with low energy consumption

#24
20200040917
2020-02-06

System for controlling construction machine and method for controlling construction machine

#25
20200039349
2020-02-06

Auxiliary power unit for mobile service vehicle

#26
20190277311
2019-09-12

HYDRAULIC SYSTEM AND METHOD OF CONTROLLING HYDRAULIC ACTUATOR

#27
20190242411
2019-08-08

Systems and methods for operating a direct current hydraulic pump

#28
20180347480
2018-12-06

Hydraulic system and method for controlling same

#29
20180335056
2018-11-22

Electronically controlled valve, hydraulic pump, and hydraulic pump system

#30
20180328386
2018-11-15

Method and device for controlling a hydraulically actuated drive unit of a valve

#31
20180327082
2018-11-15

Hydraulic actuation system

#32
20180320711
2018-11-08

Adaptive control of hydraulic tool on remote controlled demolition robot

#33
20180305899
2018-10-25

Control system and work machine

#34
20180274567
2018-09-27

Actuating drive for a control valve, in particular a steam turbine control valve, and method for operating same

#35
20180051720
2018-02-22

Hydraulic fluid energy regeneration apparatus of work machine

#36
20180003432
2018-01-04

Apparatus for the production of air gases by the cryogenic separation of air with variable liquid production and power usage

#37
20180002898
2018-01-04

Hydraulic control system

#38
20170260769
2017-09-14

Tower lifting device for rotary blasthole drill

#39
20160290369
2016-10-06

Hydraulic system and method for controlling same

#40
20160245149
2016-08-25

Hydraulic driven fan system

#41
20160032946
2016-02-04

ROTATIONAL SPEED LIMITATION DEVICE FOR A MOTOR

#42
20160003265
2016-01-07

Hydraulic system for construction machine, provided with protection device

#43
20150308080
2015-10-29

Integrated control apparatus and method for engine and hydraulic pump in construction machine

#44
20150300378
2015-10-22

Hydraulic control device for work machine

#45
20150285214
2015-10-08

Switchable hydrostatic adjusting device

#46
20150252819
2015-09-10

Work machine

#47
20150240800
2015-08-27

Oil-well-pump driving hydraulic system

#48
20150232269
2015-08-20

Clutched hydraulic system for a refuse vehicle

#49
20150197398
2015-07-16

Hydraulic drive system and method for driving a belt conveyor

#50
20150176610
2015-06-25

Hydraulic drive system

#51
20150135697
2015-05-21

Driving device for work machine and work machine equipped therewith

#52
20150107699
2015-04-23

Valve for valve assembly

#53
20150040555
2015-02-12

Hydraulic drive

#54
20150020516
2015-01-22

Hydraulic circuit

#55
20140366518
2014-12-18

Hydraulic system of construction machine

#56
20140331662
2014-11-13

Hydraulic control device for forklift

#57
20140322045
2014-10-30

Engine overload prevention using a speed differential operated relief valve

#58
20140245732
2014-09-04

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

#59
20140190158
2014-07-10

Hydraulic circuit, and combination valve used in same hydraulic circuit

#60
20140174549
2014-06-26

Proportional flow control of a fluid pump assembly

#61
20140174071
2014-06-26

Hydraulic control system for construction machinery

#62
20140158469
2014-06-12

Control device for a hydraulic elevator drive

#63
20140130487
2014-05-15

Hydraulic drive system

#64
20140116038
2014-05-01

Hydraulic system with open loop electrohydraulic pressure compensation

#65
20140083085
2014-03-27

Hydraulic drive and hydraulically operable working tool

#66
20140060020
2014-03-06

Hydraulic control system having over-pressure protection

#67
20130263583
2013-10-10

Method of controlling the flow rate of a variable capacity hydraulic pump for a construction apparatus

#68
20130255241
2013-10-03

Method for controlling flow rate of attachment for construction equipment

#69
20130145757
2013-06-13

Hydraulic control system

#70
20130098464
2013-04-25

Closed-loop hydraulic system having regeneration configuration

#71
20130098458
2013-04-25

HYDRAULIC SYSTEM HAVING MULTIPLE CLOSED-LOOP CIRCUITS

#72
20130098022
2013-04-25

Control device for a hydraulic pump of construction machinery

#73
20130098021
2013-04-25

Hydraulic pump control system for construction machinery

#74
20130081704
2013-04-04

Meterless hydraulic system having multi-actuator circuit

#75
20120220426
2012-08-30

Charge bypass system for engine start

#76
20120090310
2012-04-19

Kinematic control in a hydraulic system

#77
20120036845
2012-02-16

Hydraulic control apparatus for work machine

#78
20110186691
2011-08-04

Aircraft

#79
20110154816
2011-06-30

Fluid bypass system

#80
20110146283
2011-06-23

Engine lug-down suppressing device for hydraulic work machinery

#81
20110088797
2011-04-21

Fluid-pressure actuator unit

#82
20100310386
2010-12-09

Hydraulic damping assembly and regulating system

#83
20100162885
2010-07-01

System and method for enabling floating of earthmoving implements

#84
20100154404
2010-06-24

Hydraulic system

#85
20100084152
2010-04-08

Percussion device actuated by a pressurized non-compressible fluid

#86
20090097986
2009-04-16

OIL PRESSURE UNIT AND SPEED CONTROL METHOD OF MOTOR IN OIL PRESSURE UNIT

#87
20080010982
2008-01-17

Control Valve for a Servo Steering System

#88
20070245889
2007-10-25

Hydraulic Control Arrangement

#89
20070107790
2007-05-17

Control system for hydraulic cylinder, plug with a hydraulic cylinder and methods for setting and releasing a plug

#90
20060117942
2006-06-08

Hydraulic control circuit and method thereof

#91
20060054443
2006-03-16

Hydraulic system, in particular for motor vehicles

#92
20060026955
2006-02-09

Pressure-medium-actuated actuation device, in particular for a vehicle steering apparatus

#93
20060006041
2006-01-12

Device for the optimization of hydraulically controlled engagement of clutches used in marine transmissions

#94
20050204736
2005-09-22

Hydraulic control device for working machine

#95
20050204735
2005-09-22

Hydraulic control system for working machine

#96
20050194043
2005-09-08

Flow control apparatus

#97
20050132702
2005-06-23

Continuously variable torque shredder drive

#98
16523654
2021-12-07

Apparatus and methods for making food products with improved hydraulic controls