ClassID:

146361

F15B2211/50554 - CPC Classification

Classification description:

Circuits for servomotor systems; Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve

Recent Application in this class:
#1
20260020511
2026-01-22

HYDRAULIC CONTROL SYSTEM FOR AN AGRICULTURAL TILLAGE IMPLEMENT

#2
20240426386
2024-12-26

ELEVATABLE CHAMBER AND METHOD OF OPERATING THE SAME

#3
20240301661
2024-09-12

Work Machine

#4
20240271643
2024-08-15

INNOVATIVE CONTROL AND SAFETY SYSTEM FOR CONVEYING CIRCUITS OF PRESSURIZED FLUIDS

#5
20240159256
2024-05-16

Systems and Methods for a Return Manifold

#6
20240117826
2024-04-11

Pilot proportional control valve apparatus, automatic calibration method and medium

#7
20240099175
2024-03-28

ARRANGEMENT FOR CONTROLLING A HYDRAULIC THREE-POINT HITCH

#8
20240099174
2024-03-28

ARRANGEMENT FOR CONTROLLING A HYDRAULIC THREE-POINT HITCH

#9
20230078399
2023-03-16

Valve calibration system and calibration method

#10
20220154743
2022-05-19

Hydraulic circuit with combined compensation and energy recovery function

#11
20210262494
2021-08-26

Valve with anti-cavitation features

#12
20210231135
2021-07-29

Electronically adjustable pressure compensated flow control with pressure limiting relief valve

#13
20210129677
2021-05-06

Electropneumatically regulated control of a current collector

#14
20210034082
2021-02-04

Pressure regulator

#15
20200386246
2020-12-10

Hydraulic valve with pressure limiter function

#16
20200378409
2020-12-03

VALVE DEVICE

#17
20200103040
2020-04-02

System and method for protecting a pressure vessel from excessive differential pressure

#18
20200060063
2020-02-27

Hydraulic system for an agricultural implement incorporating implement-based hydraulic load sensing

#19
20190277313
2019-09-12

Valve device

#20
20190270125
2019-09-05

Liquid supplying device and liquid supplying method

#21
20190219073
2019-07-18

Hydraulic valve with pressure limiter function

#22
20190169009
2019-06-06

Power lift

#23
20190029182
2019-01-31

Computer controlled hydraulic conditioner roll tensioning adjustment

#24
20180372131
2018-12-27

Valve block arrangement and method for a valve block arrangement

#25
20180372126
2018-12-27

Hydraulic valve device with multiple working sections with pump control system with by-pass line

#26
20180299025
2018-10-18

Valve, in particular a 4/2-way slide valve

#27
20180281026
2018-10-04

Liquid supplying device and liquid supplying method

#28
20180216637
2018-08-02

Control system, work machine, and control method

#29
20180187702
2018-07-05

Hydraulic machine unit and method for operating such a machine unit

#30
20180142445
2018-05-24

Electro-hydraulic feed delivery system

#31
20180112682
2018-04-26

Electropneumatic positioner and a field device having an electro-pneumatic positioner

#32
20180044143
2018-02-15

Actuator control device and work vehicle

#33
20180031006
2018-02-01

Fluid pressure control device

#34
20170370144
2017-12-28

Automatic pneumatically-actuated gate and latch

#35
20170363113
2017-12-21

Variable pressure control system for dual acting actuators

#36
20170284064
2017-10-05

Construction machine

#37
20170241445
2017-08-24

Fluid systems for machines with integrated energy recovery circuit

#38
20170191506
2017-07-06

System for controlling the supply of hydraulic fluid to a work vehicle implement

#39
20170159263
2017-06-08

Valve unit for a quick-changer and quick-change system

#40
20170074293
2017-03-16

Metered fluid source connection to downstream functions in PCLS systems

#41
20170030347
2017-02-02

Dual mode fuel pump system

#42
20160362034
2016-12-15

Hoist device for dump truck

#43
20160356421
2016-12-08

COMPRESSED AIR ENERGY STORAGE SYSTEM UTILIZING TWO-PHASE FLOW TO FACILITATE HEAT EXCHANGE

#44
20160333900
2016-11-17

Hydraulic drive system for construction machine

#45
20160326721
2016-11-10

Pressure peak reduction valve for excavator and pressure peak reduction system for excavator comprising same

#46
20160319738
2016-11-03

Crosshead engine

#47
20160316611
2016-11-03

Constant pressure hydraulic circuit with relief protection independent of pressure circuit

#48
20160230780
2016-08-11

Valve device and hydraulic system

#49
20160230370
2016-08-11

Hydraulic system and working machine including the same

#50
20160186787
2016-06-30

Forestry grapple with high pressure protection system

#51
20160169253
2016-06-16

Variable pressure control system for dual acting actuators

#52
20160161956
2016-06-09

Automated relief valve control system and method

#53
20150369265
2015-12-24

Method and device for indication of the position of hydraulically actuated armatures

#54
20150369260
2015-12-24

Regeneration deactivation valve and method

#55
20150300384
2015-10-22

Hydraulic system having energy recovery

#56
20150275938
2015-10-01

Control system for hybrid construction machine

#57
20150275929
2015-10-01

Pump device and hydraulic actuator

#58
20150275928
2015-10-01

Pump apparatus and hydraulic actuator

#59
20150221427
2015-08-06

Latching solenoid regulator valve

#60
20140366518
2014-12-18

Hydraulic system of construction machine

#61
20140182711
2014-07-03

Pump fan control circuit and block for truck mountable hydraulic system

#62
20140048255
2014-02-20

Automated relief valve control system and method

#63
20140034343
2014-02-06

Variable pressure control system for dual acting actuators

#64
20130327032
2013-12-12

Hydraulic system and arrangement for an access arrangement

#65
20130061955
2013-03-14

Hydraulic valve with pressure limiter

#66
20130055704
2013-03-07

Apparatus for controlling raise speed of working machine for heavy equipment

#67
20130000289
2013-01-03

Hydraulic control system having swing motor energy recovery

#68
20120269651
2012-10-25

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#69
20120260645
2012-10-18

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#70
20120151910
2012-06-21

Variable pressure control system for dual acting actuators

#71
20120118137
2012-05-17

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#72
20120057996
2012-03-08

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#73
20120055147
2012-03-08

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#74
20120042772
2012-02-23

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#75
20120036844
2012-02-16

PNEUMATIC SYSTEM WITH ONE OR MORE PISTON-CYLINDER ARRANGEMENTS

#76
20120031088
2012-02-09

HYDRAULIC DRIVE SYSTEM FOR CONSTRUCTION MACHINE

#77
20120023919
2012-02-02

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#78
20120017580
2012-01-26

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#79
20110314804
2011-12-29

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#80
20110290514
2011-12-01

Mechanically controlled hydraulic system for an agricultural implement

#81
20110290513
2011-12-01

Hydraulic remote control for hydraulic system of an agricultural implement

#82
20110289908
2011-12-01

Hydraulic system having implement and steering flow sharing

#83
20110253239
2011-10-20

Active implement down force system with automatic latching of tractor power beyond pressure

#84
20110094214
2011-04-28

High response hydraulic actuator

#85
20100329909
2010-12-30

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#86
20100329891
2010-12-30

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#87
20100326069
2010-12-30

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#88
20100326068
2010-12-30

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#89
20100326066
2010-12-30

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#90
20100326064
2010-12-30

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#91
20100326062
2010-12-30

Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange

#92
20100229970
2010-09-16

Valve apparatus

#93
20100100274
2010-04-22

Safety device for hydraulic working machine

#94
20100083650
2010-04-08

Hydraulic circuit for operating a tool

#95
20100071788
2010-03-25

Hydraulic system with a pressure reducing valve

#96
20100065135
2010-03-18

Controlling device for hydraulic consumers

#97
20090266429
2009-10-29

Hydraulic pressure control apparatus

#98
20090199703
2009-08-13

POSITIONER FOR DOUBLE-ACTING PNEUMATIC ACTUATOR, DOUBLE-ACTING PNEUMATIC ACTUATOR AND METHOD FOR OPERATING THE DOUBLE-ACTING PNEUMATIC ACTUATOR

#99
20090093338
2009-04-09

Hydraulic control unit

#100
20090064865
2009-03-12

Integrated unit for air treatment in pneumatic systems

#101
20090050222
2009-02-26

Three-way poppet valve with intermediate pilot port

#102
20090025947
2009-01-29

Method, arrangement and valve for controlling rock drilling

#103
20090007769
2009-01-08

Positioning control mechanism for double-acting air cylinder

#104
20090000674
2009-01-01

Pressure control valve having an asymmetric valving structure

#105
20080276798
2008-11-13

Asymmetric volume booster arrangement for valve actuators

#106
20080185051
2008-08-07

Dunnage airbag inflation circuit

#107
20080110329
2008-05-15

Pressure control valve having intrinsic mechanical feedback system

#108
20070283802
2007-12-13

Pneumatic System with One or More Piston-Cylinder Arrangements

#109
20070062186
2007-03-22

Auxiliary pump for hydrostatic transmission

#110
20060254964
2006-11-16

Method and apparatus for angularly positioning a shaker separator bed

#111
20060230919
2006-10-19

Fluid powered apparatus for operating a mechanism during an emergency

#112
20060191405
2006-08-31

Flow control valve having pressure compensating valve

#113
20060169338
2006-08-03

Hydraulic pressure control device for automatic transmission

#114
20060144218
2006-07-06

Pressure control valve having intrinsic feedback system

#115
20060137519
2006-06-29

Pressure control valve having intrinsic mechanical feedback system

#116
20060080955
2006-04-20

Hydraulic circuit device of hydraulic working machine

#117
20050252326
2005-11-17

Device for driving a plurality of hydraulic shift cylinders and hydraulic supply system for a twin-clutch transmission

#118
20050229775
2005-10-20

Asymmetric volume booster arrangement for valve actuator

#119
20050217074
2005-10-06

Control system for pneumatically-powered door installation

#120
20050201874
2005-09-15

Innerscoping hydraulic system

#121
20050194225
2005-09-08

Air cylinder with high frequency shock absorber and accelerator

#122
20050115605
2005-06-02

Progressive-starting unit for pneumatic systems

#123
20050098755
2005-05-12

Valve arrangement for hydraulic consumer

#124
20050091971
2005-05-05

Balancing vertical load device for a motor

#125
17511099
2023-03-28

System and method for controlling hydraulic valve operation within a work vehicle

#126
17352007
2024-09-10

Flow control block for use with a vacuum material handler

#127
15922129
2020-02-04

Electronically controlled pressure relief valve system