Patents-Review.com
ClassID:

152456 ⎘

F16K31/1221 - page 3 - CPC Classification

Classification description:

Operating means Actuating devices; ; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded

Recent Application in this class:
#601
20090072180
2009-03-19

Double action directional fluid flow valve

 #602
20090065727
2009-03-12

Seat block and valve device

 #603
20090050832
2009-02-26

Normally-closed valve having a microflow rate adjusting device

 #604
20090045531
2009-02-19

Liquid substance supply device for vaporizing system, vaporizer, vaporization performance appraisal method

 #605
20080302428
2008-12-11

Pressure-reducing valve

 #606
20080295770
2008-12-04

Liquid substance supply device for vaporizing system, vaporizer, vaporization performance appraisal method

 #607
20080290313
2008-11-27

High-pressure bi-directional valve

 #608
20080223466
2008-09-18

Pilot-operated three-port valve

 #609
20080196774
2008-08-21

Constant flow rate valve

 #610
20080191158
2008-08-14

Flow amount control valve

 #611
20080116412
2008-05-22

Diaphragm valve

 #612
20080111095
2008-05-15

Vacuum valve

 #613
20080105309
2008-05-08

Valve Device For High-Pressure Gas

 #614
20080099713
2008-05-01

Ejector valve machine

 #615
20080083891
2008-04-10

Gate Valve Actuator

 #616
20070290154
2007-12-20

Air-operated valve

 #617
20070289638
2007-12-20

Pressure Regulating Valve

 #618
20070284003
2007-12-13

Universal refrigeration valve

 #619
20070187634
2007-08-16

Fail-safe pneumatically actuated valve with fast time response and adjustable conductance

 #620
20070144586
2007-06-28

Valve provided with a passage for conveying a medium and an installation provided with such a valve

 #621
20070102048
2007-05-10

BLOCK COAXIAL VALVE FOR USE IN COMPRESSED AIR SYSTEMS

 #622
20070097590
2007-05-03

Quick-operating valve

 #623
20070085226
2007-04-19

Liquid substance supply device for vaporizing system, vaporizer, vaporization performance appraisal method

 #624
20070007474
2007-01-11

Pilot-type two-port valve

 #625
20070001134
2007-01-04

Slurry tolerant pilot operated relief valve

 #626
20060284135
2006-12-21

Pilot-type two-port valve

 #627
20060272715
2006-12-07

Gas cylinder valve assembly

 #628
20060243937
2006-11-02

Hydraulic override

 #629
20060197049
2006-09-07

Fluid operating valve

 #630
20060196558
2006-09-07

Valve and actuator assemblies

 #631
20060175563
2006-08-10

Fluid control device

 #632
20060169334
2006-08-03

Switching valve with position detecting mechanism

 #633
20060157108
2006-07-20

Control valve for nitrous oxide injection system

 #634
20060145107
2006-07-06

Chemical liquid valve

 #635
20060065868
2006-03-30

DIAPHRAGM VALVE

 #636
20060060812
2006-03-23

Aseptic sampling valve

 #637
20060060806
2006-03-23

Fluid controller

 #638
20060043324
2006-03-02

Valve with lock-out mechanism and method of using the same

 #639
20060042701
2006-03-02

Emissions sampling valve

 #640
20060038154
2006-02-23

Paint selector valve

 #641
20050285064
2005-12-29

Flow control valve

 #642
20050269533
2005-12-08

Sanitary diaphragm valve

 #643
20050252555
2005-11-17

Valve and pressure regulator biasing assemblies

 #644
20050151100
2005-07-14

Positive pressure actuated aerator valve assembly

 #645
20050127200
2005-06-16

Valve position monitor and method of use

 #646
20050092079
2005-05-05

Diaphragm monitoring for flow control devices

 #647
20050006610
2005-01-13

Evacuating valve

 #648
20050005966
2005-01-13

Shut-off actuator with gas generation device

 #649
17648315
2023-02-21

Differential ambient pressure powered hydraulically driven generator battery

 #650
15726679
2019-10-08

Electrohydraulic counterbalance and pressure relief valve

 #651
15653044
2018-12-18

Fluid pump pressure relief valve

 #652
15583056
2020-01-07

Pressure relief valve

 #653
15213952
2019-01-29

Valve with valve member cooling

 #654
14638935
2018-06-05

Dual mode flow control valve