ClassID:

146302

F15B2211/328 - CPC Classification

Classification description:

Circuits for servomotor systems; Directional control characterised by the type of actuation electrically or electronically with signal modulation, e.g. pulse width modulation [PWM]

Recent Application in this class:
#1
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MULTIFUNCTIONAL ELECTRO-HYDRAULIC FLOW CONTROL VALVE AND FLOW CONTROL METHOD

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Pneumatic cylinder system

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Setpoint identification on retrofit electric actuation

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Methods and apparatus for quantifying pneumatic volume usage via valve controllers

#5
20210285470
2021-09-16

Automatic air bleeding system for hydraulics

#6
20210285466
2021-09-16

Redundant electrohydraulic positioning control system

#7
20210095701
2021-04-01

Dithering hydraulic valves to mitigate static friction

#8
20190093310
2019-03-28

Implement vibration system and method

#9
20190017520
2019-01-17

Servo governor by PWM

#10
20170102092
2017-04-13

Three-way control valve

#11
20160153475
2016-06-02

Discrete pilot stage valve arrangement with fail freeze mode

#12
20160070272
2016-03-10

Solenoid valve control system, a control valve system, and a method of controlling electronic valve

#13
20150159679
2015-06-11

Pulse controlled linear actuator

#14
20150047333
2015-02-19

Hydraulic arrangement for supplying a consumer

#15
20140230926
2014-08-21

Hydraulic safety and movement control system

#16
20140060654
2014-03-06

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

#17
20130248742
2013-09-26

Digital Control Method for a Hydraulic ON/OFF Valve

#18
20130232963
2013-09-12

Digital hydraulic transformer and method for recovering energy and leveling hydraulic system loads

#19
20110266270
2011-11-03

METHOD FOR OPERATING AN HYDRAULIC BRAKE SYSTEM IN A MOTOVEHICLE

#20
20110132185
2011-06-09

Variable output hydraulic actuator system

#21
20080184877
2008-08-07

Control system for a hydraulic servomotor

#22
20080184876
2008-08-07

Hydraulic actuator having an auxiliary valve

#23
20080184875
2008-08-07

Valve assembly and a hydraulic actuator comprising the valve assembly

#24
20070295924
2007-12-27

Fluid controller and a method of detecting an error in a fluid controller

#25
20070199440
2007-08-30

Hydraulic system for utility vehicles, in particular agricultural tractors

#26
20060249210
2006-11-09

Pressure balanced dual seat three-way hydraulic valve

#27
20050211936
2005-09-29

Electrohydraulic valve servomechanism with adaptive resistance estimator