F15B2211/3138 - CPC Classification Index

ClassID:

146275 ⎘

F15B2211/3138 - CPC Classification

Classification description:

Circuits for servomotor systems; Directional control characterised by the positions of the valve element the positions being discrete

Recent Application in this class:

20240175242

2024-05-30

Hydraulic drive system and construction machine

20230399929

2023-12-14

Power System and Fracturing Device

20230139226

2023-05-04

Controller and method for hydraulic apparatus

20220177084

2022-06-09

Hydraulic system for stabilizer drive

20220128069

2022-04-28

Vehicle for a thick matter pump apparatus

20220003250

2022-01-06

Electro-hydrostatic actuator system

20190093678

2019-03-28

Spool valve

20170022790

2017-01-26

Annulus installed 6 zone control manifold

20160091001

2016-03-31

Method for determining a control force of an actuator

#10

20150292644

2015-10-15

Balanced electronically controlled pressure regulating valve

#11

20150152894

2015-06-04

Actuator unit

#12

20150082784

2015-03-26

Flushing circuit for hydraulic cylinder drive circuit

#13

20140105714

2014-04-17

Hybrid excavator including a fast-stopping apparatus for a hybrid actuator

#14

20140060654

2014-03-06

Method for actuating a hydraulic valve arrangement, and hydraulic valve arrangement

#15

20140000737

2014-01-02

Zonal hydraulic systems and methods

#16

20130327032

2013-12-12

Hydraulic system and arrangement for an access arrangement

#17

20130248742

2013-09-26

Digital Control Method for a Hydraulic ON/OFF Valve

#18

20130152293

2013-06-20

Liquid-operated actuator assembly, particularly for a flush toilet, and flush toilet incorporating the assembly

#19

20120291873

2012-11-22

Hydraulic circuit

#20

20120233997

2012-09-20

Regenerative hydraulic systems and methods of use

#21

20120224983

2012-09-06

MULTI-WAY VALVE, HYDRAULIC DEVICE AND CONCRETE PUMP VEHICLE

#22

20120216898

2012-08-30

Methods and apparatus for bypassing a positioner in an active control loop

#23

20120133200

2012-05-31

Brake system and method

#24

20120085601

2012-04-12

Shut-off valve for hydraulic system

#25

20110284241

2011-11-24

Overriding a primary control subsystem of a downhole tool

#26

20110185888

2011-08-04

Arrangement for hydraulic eccentric adjustment to set a predefined displacement for a hydrostatic motor

#27

20110072810

2011-03-31

Controller of hybrid construction machine

#28

20110056194

2011-03-10

HYDRAULIC SYSTEM FOR HEAVY EQUIPMENT

#29

20110005221

2011-01-13

Hydraulic pressure supply unit for a power screwdriver

#30

20100229970

2010-09-16

Valve apparatus

#31

20100078089

2010-04-01

Hydraulic trip unit for a valve unit in a prime mover plant, especially for a fast-acting shut-off valve of a turbine plant

#32

20090283276

2009-11-19

Overriding a primary control subsystem of a downhole tool

#33

20090235921

2009-09-24

Hydraulic control device

#34

20090139222

2009-06-04

System for storing, delivering and recovering energy

#35

20090094971

2009-04-16

SYSTEM AND APPARATUS TO SYNCHRONIZE A PLURALITY OF HYDRAULICALLY ACTUATED COMPONENTS

#36

20080223456

2008-09-18

Hydraulic valve arrangement

#37

20080207392

2008-08-28

Device for actuating a plurality of hydraulic control cylinders

#38

20080146988

2008-06-19

Pressure monitor for pneumatic vitrectomy machine

#39

20070251400

2007-11-01

Platen Press

#40

20070120662

2007-05-31

Digital Hydraulic system

#41

20070022750

2007-02-01

Hydraulic arrangement

#42

20070007039

2007-01-11

Arrangement for controlling rock drilling

#43

20060288863

2006-12-28

Hydraulic circuit for working machine

#44

20060237203

2006-10-26

Hydraulic lift assist for tractor towed earth moving apparatus

#45

20060120892

2006-06-08

Hydraulic system for mining equipment and method of adjusting power of rock drill machine

#46

20050279086

2005-12-22

System for storing, delivering and recovering energy