ClassID:

146250

F15B2211/3051 - CPC Classification

Classification description:

Circuits for servomotor systems; Directional control characterised by the type of valves; Non-return valves, i.e. check valves Cross-check valves

Recent Application in this class:
#1
20260078778
2026-03-19

PILOT OPERATED BLOW-OFF VALVES FOR HYDRAULIC ACTUATORS

#2
20250012299
2025-01-09

PILOT OPERATED BLOW-OFF VALVES FOR HYDRAULIC ACTUATORS

#3
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

#4
20220347023
2022-11-03

Hydraulic system for a mobile rescue stretcher and mobile rescue stretcher

#5
20220282742
2022-09-08

Additively manufactured hydraulic valve components

#6
20210207620
2021-07-08

Valve system for pneumatic cylinders

#7
20200392702
2020-12-17

Articulation system for an earthmoving machine

#8
20200056634
2020-02-20

Valve system for pneumatic cylinders

#9
20200049266
2020-02-13

Pilot operated blow-off valves for hydraulic actuators

#10
20190234431
2019-08-01

Cylinder driving device

#11
20190178242
2019-06-13

Hydraulic drive

#12
20180370775
2018-12-27

Offshore crane heave compensation control system and method using visual ranging

#13
20180180189
2018-06-28

Valve system for pneumatic cylinders

#14
20180079634
2018-03-22

Hydraulic clamping systems having load side-shifting variably responsive to load weight

#15
20160298719
2016-10-13

Control strategy for reducing boom oscillation

#16
20160153474
2016-06-02

Metering check valve

#17
20150275930
2015-10-01

Pump device and hydraulic actuator

#18
20150275928
2015-10-01

Pump apparatus and hydraulic actuator

#19
20150260204
2015-09-17

Cylinder driving apparatus

#20
20150152842
2015-06-04

Wind energy system with a pitch adjustment system

#21
20150052888
2015-02-26

Hydraulic system

#22
20130055886
2013-03-07

Double check valve for construction equipment

#23
20120131913
2012-05-31

Hydraulic swing-controlling apparatus of work machine

#24
20110315234
2011-12-29

Fluid control system for steerable agricultural implement

#25
20110289912
2011-12-01

Electro-hydraulic actuator

#26
20110248196
2011-10-13

Electro-hydraulic actuator including a release valve assembly

#27
20110120297
2011-05-26

Hydraulic Circuit

#28
20110011257
2011-01-20

ELECTRO-HYDRAULIC ACTUATOR HAVING END CAP WITH SPLIT BUSHING

#29
20110005217
2011-01-13

Bidirectional hydraulic system for operating table

#30
20100300279
2010-12-02

Point Of Use Actuator

#31
20100252354
2010-10-07

Differential pressure control

#32
20100229970
2010-09-16

Valve apparatus

#33
20100193714
2010-08-05

HYDRAULIC ACTUATOR

#34
20100101120
2010-04-29

Fluid pressure drive unit and snow removal unit

#35
20100090143
2010-04-15

Dual locking valve

#36
20100083651
2010-04-08

Circuit for controlling a double-action hydraulic drive cylinder

#37
20090301589
2009-12-10

DIRECT ACTING ZERO LEAK 4/3 TANDEM CENTER NEUTRAL VALVE

#38
20090249776
2009-10-08

Lock valve with grooved porting in bore

#39
20090145123
2009-06-11

Hydraulic circuit having holding valve of external pilot pressure operation type

#40
20090107568
2009-04-30

Apparatus operating hydraulic actuator for valve

#41
20090078111
2009-03-26

Double check valve having floating function

#42
20090045384
2009-02-19

Tool with hydraulic valve system

#43
20090001300
2009-01-01

Directional control valve device and fluid pressure cylinder device

#44
20090000675
2009-01-01

Combined relief valve and check valve

#45
20080307783
2008-12-18

Load sense boost device

#46
20080282691
2008-11-20

Pressure-compensating directional control valve

#47
20080271445
2008-11-06

Hydraulic circuit for synchronized horizontal extension of cylinders

#48
20080202111
2008-08-28

Load sense boost device

#49
20080121101
2008-05-29

Double check valve having floating function

#50
20070295416
2007-12-27

Hydraulic circuit for actuation of a hydraulic working cylinder

#51
20070209502
2007-09-13

Dual-effect hydraulic actuator handling system for gate moving

#52
20070199437
2007-08-30

Operate check valve and hydraulic driving unit

#53
20070175211
2007-08-02

Release system, particularly for releasing hydraulic actuators for automatic openings

#54
20070157612
2007-07-12

COMPACT HYDRAULIC ACTUATOR SYSTEM

#55
20070151235
2007-07-05

Actuator system having a valve manifold

#56
20070137192
2007-06-21

Circuit arrangement

#57
20070095060
2007-05-03

Hydraulic pressure supply unit

#58
20060266210
2006-11-30

Hydraulic system having a post-pressure compensator

#59
20060249016
2006-11-09

Hydraulic circuit and its valve gear

#60
20060248884
2006-11-09

Shuttle valve for bi-rotational power units

#61
20060248883
2006-11-09

Anti jerk valve

#62
20060242957
2006-11-02

Orifice element with integrated filter, slow return valve, and hydraulic drive unit

#63
20060201321
2006-09-14

Hydraulic control arrangement

#64
20060168956
2006-08-03

Hydraulic controller and hydraulic drive unit provided with said hydraulic controller

#65
20060081121
2006-04-20

Hydraulic valve arrangement

#66
20060026955
2006-02-09

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

#67
20050173182
2005-08-11

Power steering system

#68
20050132876
2005-06-23

Position control device for a hydraulic actuator and interface plate for a servovalve implementing such a device

#69
20050109026
2005-05-26

Open hydraulic circuit including a relief valve device

#70
20050098030
2005-05-12

Hydrostatic drive system with a safety device

#71
20050092169
2005-05-05

Control device for a hydraulic lifting arrangement

#72
20050044849
2005-03-03

Hydraulic control arrangement for a mobile work machine