ClassID:

145981

F15B13/01 - CPC Classification

Classification description:

Details of servomotor systems ; Valves for servomotor systems Locking-valves or other detent i.e. load-holding devices

Sub-classes:
Recent Application in this class:
#1
20240271640
2024-08-15

FLUID PRESSURE CONTROL DEVICE

#2
20240200580
2024-06-20

HYDRAULIC SYSTEM AND METHOD FOR OPERATING A HYDRAULIC SYSTEM

#3
20240150161
2024-05-09

Working equipment with capabilities of preventing buckling of hydraulic cylinder

#4
20240011511
2024-01-11

Valve

#5
20230380355
2023-11-30

System and method to service a cutting element in work machine

#6
20230055316
2023-02-23

Device for holding a stem of a hydraulic cylinder in position, and method for unblocking and blocking a secondary check valve of the device

#7
20220299046
2022-09-22

Spool valve and hydraulic apparatus including the same

#8
20220258815
2022-08-18

Four-legged construction machine having slope stability system with relief valves

#9
20220252090
2022-08-11

System with motion sensors for damping mass-induced vibration in machines

#10
20220145770
2022-05-12

Electrohydrostatic actution system, hydraulic circuit of electrohydrostatic actution system, and steam turbine system including same

#11
20210341033
2021-11-04

Magnetorheological fluid joystick systems providing detent-triggered work vehicle functions

#12
20210340728
2021-11-04

Work vehicle magnetorheological fluid joystick systems having adjustable joystick return positions

#13
20210340726
2021-11-04

Work vehicle magnetorheological fluid joystick systems operable in modified joystick stiffness modes

#14
20210340725
2021-11-04

Work vehicle magnetorheological fluid joystick systems providing implement command guidance

#15
20210239139
2021-08-05

Valve device

#16
20210231246
2021-07-29

SYSTEM AND METHOD FOR REDUCING ENVIRONMENTAL IMPACT CAUSED BY HYDRAULIC OIL LEAKING FROM A TRACTOR

#17
20210164196
2021-06-03

Work vehicle

#18
20210033067
2021-02-04

Hydraulic driving system and driving method for barring

#19
20200363001
2020-11-19

System and method for reducing environmental impact caused by hydraulic oil leaking from a tractor

#20
20200141427
2020-05-07

A THROTTLING LOCKING VALVE

#21
20200141426
2020-05-07

PULSE CONTROLLED SOLENOID VALVE WITH DUAL BALL DETENT

#22
20200124062
2020-04-23

System with motion sensors for damping mass-induced vibration in machines

#23
20200063761
2020-02-27

Hydraulic drive device for cargo vehicle

#24
20200056632
2020-02-20

Composite valve for direct attachment to port of hydraulic apparatus

#25
20200056631
2020-02-20

Electrohydraulic counterbalance and pressure relief valve

#26
20190390419
2019-12-26

Gangway having position locking assembly

#27
20190376532
2019-12-12

Hydraulic lock and method for a hydraulic system

#28
20190301364
2019-10-03

Arrangement of a switching valve module in a connecting rod of a reciprocating internal combustion engine

#29
20190249693
2019-08-15

Discharge pressure scale and lifting-lowering device having a discharge pressure scale of this type

#30
20190128436
2019-05-02

Bi-directional inline check valve

#31
20190063015
2019-02-28

Gangway having position locking assembly

#32
20190032680
2019-01-31

Dual-valve security unit for hydraulic cylinders

#33
20180371719
2018-12-27

System and method for hydraulic actuator lock valve

#34
20180356000
2018-12-13

NEW INTERLOCKING SOLUTION

#35
20180252349
2018-09-06

System and method for reducing environmental impact caused by hydraulic oil leaking from a tractor

#36
20180148159
2018-05-31

Latch pin assembly

#37
20180093440
2018-04-05

Hydraulic drive

#38
20180022442
2018-01-25

System for actuating a control surface of an aircraft

#39
20180002031
2018-01-04

Hydraulically assisted rat actuator latch mechanism

#40
20170284426
2017-10-05

Construction machine

#41
20170268660
2017-09-21

Assembly for blocking and enabling a shifting position of a shifting element

#42
20170211246
2017-07-27

Gangway having hydraulic position locking assembly

#43
20170204883
2017-07-20

Control device for zero-leak directional control valves

#44
20170175780
2017-06-22

Safety Valve For The Hydraulic Hopper Lifting System Of Compactor Trucks

#45
20170058489
2017-03-02

Construction Machine

#46
20170037876
2017-02-09

Fluid pump for a linear actuator

#47
20160207608
2016-07-21

Latch pin assembly for folding wing tip system

#48
20160195111
2016-07-07

Fluid pressure control apparatus

#49
20160178069
2016-06-23

Valve connected to a feed circuit, a feed circuit comprising such a valve and a feeding method operating such a feed circuit

#50
20160146231
2016-05-26

Hydraulic port safety locking device

#51
20160032947
2016-02-04

Construction machine

#52
20150377259
2015-12-31

Construction equipment pressure control valve

#53
20150369262
2015-12-24

Fluid pressure control device

#54
20150354173
2015-12-10

Pressure compensation valve

#55
20150275929
2015-10-01

Pump device and hydraulic actuator

#56
20150275928
2015-10-01

Pump apparatus and hydraulic actuator

#57
20150176612
2015-06-25

Double hydraulic valve of a servo-control for feathering the blades of a rotorcraft rotor

#58
20150135701
2015-05-21

Fluid pump for a linear actuator

#59
20150135693
2015-05-21

Engine control apparatus for work machine and engine control method thereof

#60
20150096291
2015-04-09

Fluid pressure control device

#61
20150075640
2015-03-19

Pneumatic valve assembly and method

#62
20150075148
2015-03-19

HYDRAULIC CONTROL SYSTEM

#63
20140345699
2014-11-27

Vent valve

#64
20140230936
2014-08-21

Operation lever lock apparatus

#65
20140208935
2014-07-31

Locking mechanism for locking an actuator

#66
20130277582
2013-10-24

HOLDING VALVE FOR CONSTRUCTION EQUIPMENT

#67
20130233409
2013-09-12

Dynamically adjusting counterbalance valve

#68
20130014837
2013-01-17

Proportional poppet valve with integral check valves

#69
20120133200
2012-05-31

Brake system and method

#70
20120085601
2012-04-12

Shut-off valve for hydraulic system

#71
20110162744
2011-07-07

Device for piloting by means of a substantially incompressible fluid

#72
20110132473
2011-06-09

Hydraulic control valve assembly with monolithic body and single spool port lock

#73
20110030818
2011-02-10

Proportional poppet valve with integral check valve

#74
20100139791
2010-06-10

Hydraulic controller

#75
20100090143
2010-04-15

Dual locking valve

#76
20100059125
2010-03-11

Balanced pilot operated check valve

#77
20090241765
2009-10-01

Holding control valve

#78
20090145123
2009-06-11

Hydraulic circuit having holding valve of external pilot pressure operation type

#79
20090078111
2009-03-26

Double check valve having floating function

#80
20090014074
2009-01-15

Hydraulic valve arrangement

#81
20090007976
2009-01-08

LIFD valve assembly

#82
20080143176
2008-06-19

Anti-Reverse Safety Device for Hydraulic Cylinder of Wheeled Vehicle

#83
20080121101
2008-05-29

Double check valve having floating function

#84
20080078286
2008-04-03

Quiet fluid supply valve

#85
20080054203
2008-03-06

Valve arrangement

#86
20080053304
2008-03-06

Hydraulic control apparatus

#87
20060273270
2006-12-07

Valve

#88
20060191582
2006-08-31

Hydraulic control arrangement

#89
20060048824
2006-03-09

Controllable solenoid valve

#90
20060037649
2006-02-23

Anti-saturation directional control valve composed of two or more sections with pressure selector compensators

#91
20060011875
2006-01-19

Hydraulically controlled valve comprising at least one hydraulic drive unit

#92
20050247188
2005-11-10

Hydraulic control valve having holding valve with improved response characteristics

#93
20050115620
2005-06-02

Valve assembly

#94
16246924
2020-05-12

Proportional fluid flow control valve configured to generate a pressure-boosted pilot fluid signal

#95
16246921
2020-09-15

Proportional fluid flow control valve having a built-in check valve and configured to generate a pilot signal

#96
15954884
2019-12-03

Electrohydraulic counterbalance and pressure relief valve