Patents-Review.com
ClassID:

145931 ⎘

F15B11/04 - 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

Sub-classes:
Recent Application in this class:
#1
20250263909
2025-08-21

Work Machine

 #2
20250043805
2025-02-06

METHOD FOR CONTROLLING THE ROTATION SPEED OF A MOTOR

 #3
20240240653
2024-07-18

Fan Drive Device with Proportional Valve

 #4
20240051806
2024-02-15

Hydraulic system for an industrial truck

 #5
20230349360
2023-11-02

Hydraulic pitch drive system

 #6
20230174354
2023-06-08

LIFTING MECHANISM

 #7
20230174353
2023-06-08

Lifting mechanism

 #8
20220260094
2022-08-18

Hydraulic power system for downhole device and downhole device

 #9
20220251804
2022-08-11

Mobile work machine

 #10
20220242295
2022-08-04

Closed center hoist valve with snubbing

 #11
20220186750
2022-06-16

Hydraulic system and a method for controlling the same

 #12
20220106766
2022-04-07

CONTROL UNIT FOR A HYDRAULIC SYSTEM

 #13
20210404486
2021-12-30

Flow rate controller and drive device comprising same

 #14
20200399857
2020-12-24

Excavator and information processing device

 #15
20200362889
2020-11-19

Control mapping for hydraulic machines

 #16
20200355203
2020-11-12

AIR CYLINDER FLUID CIRCUIT AND METHOD FOR DESIGNING SAME

 #17
20200318659
2020-10-08

Hydraulic drive apparatus for industrial vehicle

 #18
20200318319
2020-10-08

Operation control device for working vehicle

 #19
20200300273
2020-09-24

Hydraulic system and a control system for the same

 #20
20200232482
2020-07-23

Hydraulic circuit

 #21
20200182264
2020-06-11

Speed controller

 #22
20200132091
2020-04-30

Servohydraulic drive

 #23
20200096013
2020-03-26

Method for determining closed-control parameters for a hydraulic system

 #24
20200095748
2020-03-26

Work machine

 #25
20200056632
2020-02-20

Composite valve for direct attachment to port of hydraulic apparatus

 #26
20190309769
2019-10-10

Hydraulic drive device

 #27
20190301496
2019-10-03

Hydraulic valve assembly with automated tuning

 #28
20190285093
2019-09-19

Controller unit and liquid-pressure driving system

 #29
20190264420
2019-08-29

Method of limiting flow in response to sensed pressure

 #30
20190219070
2019-07-18

Motor control device

 #31
20190178041
2019-06-13

Hydraulic multi-displacement hoisting cylinder system

 #32
20190169820
2019-06-06

Energy regeneration device and work machine provided with energy regeneration device

 #33
20190145083
2019-05-16

Control of variable gravity driven hydraulic loads

 #34
20190056036
2019-02-21

Spool valve

 #35
20190032306
2019-01-31

Control system, work machine, and control method

 #36
20190003494
2019-01-03

HYDRAULIC DRIVING DEVICE FOR CARGO HANDLING VEHICLE

 #37
20180370757
2018-12-27

Hydraulic elevator system with position or speed based valve control

 #38
20180347150
2018-12-06

Control system for construction machine

 #39
20180347149
2018-12-06

Work machine operation assistance device

 #40
20180305898
2018-10-25

Construction machine

 #41
20180291932
2018-10-11

Motor soft shift feature

 #42
20180283418
2018-10-04

Work vehicle and data calibration method

 #43
20180281656
2018-10-04

Control system for dump truck, dump truck, and control method for dump truck

 #44
20180274515
2018-09-27

Movable-blade operation system for hydraulic machine

 #45
20180266572
2018-09-20

Rotary valve and fluid pressure actuator unit including rotary valve

 #46
20180258962
2018-09-13

Cylinder acceleration mechanism

 #47
20180251959
2018-09-06

Work vehicle and data calibration method

 #48
20180245608
2018-08-30

Application-based control of pneumatic valve assemblies

 #49
20180237095
2018-08-23

TWO-WHEEL SUSPENSION MECHANISM

 #50
20180172030
2018-06-21

Fan control system with electro-hydraulic valve providing three fan motor operational positions

 #51
20180170733
2018-06-21

INDUSTRIAL TRUCK HAVING A CONTROL UNIT FOR REGULATING THE MOVEMENT OF A HYDRAULIC CYLINDER, AND METHOD FOR CONTROLLING THE SAME

 #52
20180066681
2018-03-08

HYDRAULIC STABILIZING SYSTEM

 #53
20180051444
2018-02-22

Hydraulic control system of construction machine

 #54
20180002000
2018-01-04

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

 #55
20170292243
2017-10-12

Construction machine

 #56
20170275852
2017-09-28

Hydraulic control system for construction machine

 #57
20170234333
2017-08-17

Actuator controller and method for regulating the movement of an actuator

 #58
20170204885
2017-07-20

Pneumatic volume booster

 #59
20170198730
2017-07-13

Hydraulic apparatus

 #60
20170130426
2017-05-11

Working machine

 #61
20170074059
2017-03-16

Hydraulic multi-displacement hoisting cylinder system

 #62
20170029256
2017-02-02

Load dependent electronic valve actuator regulation and pressure compensation

 #63
20160333824
2016-11-17

HYDRAULIC CONTROL FOR A THRUST REVERSER OF A TURBOJET ENGINE, INCLUDING A VARIABLE-DISPLACEMENT MACHINE

 #64
20160305455
2016-10-20

Double-loop control system with single hydraulic motor

 #65
20160230785
2016-08-11

Hydraulic control system for auxiliary power source

 #66
20160084274
2016-03-24

System to pump fluid and control thereof

 #67
20160069282
2016-03-10

Engine speed controller of work machine

 #68
20160061236
2016-03-03

Method for controlling hydraulic system of construction machinery

 #69
20160040689
2016-02-11

Device and method for controlling hydraulic pump in construction machine

 #70
20160032949
2016-02-04

Slewing drive apparatus for construction machine

 #71
20160010664
2016-01-14

Control system for a felling saw and method of control thereof

 #72
20160003266
2016-01-07

Work machine

 #73
20150369261
2015-12-24

HYDRAULIC DRIVE SYSTEM

 #74
20150316077
2015-11-05

Method for operating a hydraulic device with pump and servomotor, and associated hydraulic device

 #75
20150300379
2015-10-22

CYLINDER CONTROL DEVICE

 #76
20150240449
2015-08-27

Method and apparatus for controlling swing body of construction equipment

 #77
20150226234
2015-08-13

Hydraulic actuator system

 #78
20150219123
2015-08-06

Construction machine

 #79
20150159679
2015-06-11

Pulse controlled linear actuator

 #80
20130098461
2013-04-25

Booster for a digital hydraulic controller and method for using a booster in connection with a digital hydraulic controller

 #81
20130032233
2013-02-07

Hydraulic pressure-regulating valve for construction equipment

 #82
20070144340
2007-06-28

Adjustable Differential Flow Shuttle Valve Control System

 #83
20060174761
2006-08-10

Compressible fluid pressure actuator

 #84
20060042240
2006-03-02

System and method for controlling hydraulic fluid flow

 #85
20050226732
2005-10-13

Method for compensating flow rate at neutral position of operation lever of construction equipment

 #86
17000957
2021-10-12

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