Y10T137/2409 - CPC Classification Index

ClassID:

248541 ⎘

Y10T137/2409 - CPC Classification

Classification description:

Fluid handling; Pressure modulating relays or followers With counter-balancing pressure feedback to the modulating device

Sub-classes:

Y10T137/2452 » With counter-counter balancing pressure feedback 1

Recent Application in this class:

20180274616

2018-09-27

Torsion spring

20160158815

2016-06-09

Digital closed loop proportional hydraulic pressure controller

20150053275

2015-02-26

Digital closed loop proportional hydraulic pressure controller

20140251447

2014-09-11

Servovalve having two stages and a pilot stage adapted to such a servovalve

20120247594

2012-10-04

Pilot relay

20120241010

2012-09-27

Digital closed loop proportional hydraulic pressure controller

20120061606

2012-03-15

Volume booster with variable asymmetry

20110240138

2011-10-06

Electro-pneumatic positioner and electro-pneumatic converting device

20100139781

2010-06-10

Apparatus to control fluid flow

#10

20090194169

2009-08-06

Digital closed loop proportional hydraulic pressure controller

#11

20090159135

2009-06-25

Pneumatic amplifier and arrangement for regulating a regulating armature of a process plant

#12

20080149186

2008-06-26

Method and apparatus for emission management

#13

20080078449

2008-04-03

Low Consumption Pneumatic Controller

#14

20080078448

2008-04-03

Low Consumption Pneumatic Controller

#15

20080023073

2008-01-31

High pressure transducer

#16

20070235080

2007-10-11

Adjustment assembly

#17

20050278074

2005-12-15

Feedback control methods and apparatus for electro-pneumatic control systems