ClassID:

152568

F16K37/0066 - CPC Classification

Classification description:

Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given Hydraulic or pneumatic means

Recent Application in this class:
#1
20250346174
2025-11-13

SYSTEMS AND METHODS FOR VENTING TANKS TO ENHANCE TRANSPORTING ASPHALT

#2
20250333014
2025-10-30

METHOD FOR DETECTING A SAFE STATE OF A VALVE OF A HYDRAULIC SYSTEM

#3
20250271006
2025-08-28

METHODS AND SYSTEMS OF FAILURE PROTECTION FOR AUTOMATED VALVES

#4
20250243738
2025-07-31

Systems and Methods for Data Acquisition from Valve Assemblies

#5
20250237120
2025-07-24

METHODOLOGY AND SYSTEM FOR ELECTRONIC CONTROL AND ACQUISITION OF DOWNHOLE VALVE

#6
20250180139
2025-06-05

VALVE ASSEMBLY

#7
20250172221
2025-05-29

USING PRESSURE TO MONITOR POSITION OF COMPONENTS ON A CONTROL VALVE

#8
20250155030
2025-05-15

VACUUM ANGLE VALVE COMPRISING A PRESSURE SENSOR

#9
20240291268
2024-08-29

PROCESS CONTROL INSTRUMENTS HAVING LOCAL INTRINSIC SAFETY BARRIERS AND METHODS OF MANUFACTURING THE SAME

#10
20240255070
2024-08-01

System, method, and valve assembly for surge protection

#11
20240142020
2024-05-02

MONITORING AN OPERATING CONDITION OF AN HVAC FLOW REGULATOR

#12
20240060573
2024-02-22

FLUID CONTROL VALVE AND FLUID CONTROL APPARATUS

#13
20230313639
2023-10-05

Methodology and system for electronic control and acquisition of downhole valve

#14
20230304886
2023-09-28

VALVE DIAGNOSTIC AND PERFORMANCE SYSTEM

#15
20230099720
2023-03-30

Valve system configured to prevent corrosion at process liquid/vapor interface

#16
20230015389
2023-01-19

Method for testing the functionality of a solenoid valve for triggering a safety valve

#17
20220349493
2022-11-03

Devices and systems for measuring the state of a valve, and related methods

#18
20220196183
2022-06-23

Gas regulator diaphragm-position and pressure-relief detection

#19
20220170567
2022-06-02

Valve structure with built-in valve seat of pre-action warning valve

#20
20220163136
2022-05-26

SYSTEM AND METHOD FOR MONITORING FLOW RATE OF REGULATING VALVE BASED ON ACOUSTIC SENSOR

#21
20220107240
2022-04-07

Valve diagnostic and performance system

#22
20220018461
2022-01-20

SOLENOID VALVE DIAGNOSTIC SYSTEM

#23
20220018459
2022-01-20

Valve assembly

#24
20210404910
2021-12-30

Dishwashing appliances and methods for determining valve status therein

#25
20210362637
2021-11-25

Systems and methods for venting tanks to enhance transporting asphalt

#26
20210307561
2021-10-07

TIME-CONTROLLED VALVE WITH WARNING SYSTEM

#27
20210247268
2021-08-12

Valve diagnosis apparatus, valve apparatus, and valve diagnosis method

#28
20210215269
2021-07-15

Fluid control device

#29
20210207730
2021-07-08

Single actuator multiple position appliance diverter valve

#30
20210148477
2021-05-20

Axial valve of the modular concept of construction

#31
20210086008
2021-03-25

Fire extinguishing system valve, in particular wet alarm valve, dry alarm valve or spray water valve and control module for the same and fire extinguishing system utilizing the same

#32
20210041038
2021-02-11

Arrangement with on/off valve, pneumatic actuator, magnetic valve and function monitoring device

#33
20200386595
2020-12-10

Ultrasonic flowmeter, use of an ultrasonic flowmeter in a shut-off device and shut-off device

#34
20200386345
2020-12-10

Shut-off device for a fluid

#35
20200300377
2020-09-24

Valve for Switching Fluids, Extinguishing System, and a Method

#36
20200292407
2020-09-17

Fluid control apparatus, diagnostic method and program record medium for recording programs of fluid control apparatus

#37
20200114895
2020-04-16

Trip cock valve for a brake system on a rail car

#38
20200049115
2020-02-13

Relief valve determination device for high-pressure fuel supply system

#39
20190390791
2019-12-26

GAS SUPPLY REGULATOR

#40
20190360292
2019-11-28

Testable back pressure valve and pressure testing system therefor

#41
20190257433
2019-08-22

Valve device

#42
20190255368
2019-08-22

Low-flow alarm and valve

#43
20190107225
2019-04-11

PUMP CHUCK WITH WHISTLING FUNCTION

#44
20190072452
2019-03-07

VALVE MANIFOLD

#45
20190032785
2019-01-31

Seal

#46
20180245709
2018-08-30

Valve for switching fluids, extinguishing system and method

#47
20180216751
2018-08-02

Pressure safety valve indicator

#48
20180087342
2018-03-29

Blowout preventer monitoring systems and methods

#49
20180051823
2018-02-22

Methods and apparatus for conducting in-service testing of pneumatic signal amplifiers

#50
20170122832
2017-05-04

Assembly for start-up testing fluid flow control devices at various pressures and temperatures

#51
20160356396
2016-12-08

Electro-pneumatic actuator

#52
20160341627
2016-11-24

Valve manifold

#53
20160153854
2016-06-02

Pressure indicating device

#54
20150122354
2015-05-07

AUTOMATICALLY RESETTABLE PRESSURE RELIEF VALVE WITH MANUALLY RESETTABLE INDICATOR SYSTEM

#55
20150060716
2015-03-05

Gate valve with floating seal

#56
20150041001
2015-02-12

Pressure regulator of gas cylinder

#57
20150020901
2015-01-22

Control valve with integral pressure switch

#58
20140374125
2014-12-25

Flow control assembly for a fire sprinkler system

#59
20140175316
2014-06-26

Manual balancing valve

#60
20130327426
2013-12-12

Positioner

#61
20130327425
2013-12-12

Positioner

#62
20130230389
2013-09-05

Valve

#63
20130001453
2013-01-03

Fluid control device and flow rate control apparatus

#64
20120039770
2012-02-16

Microfluidic device including microvalve

#65
20110278291
2011-11-17

Protection cap assembly with leak detection capability for a pressurized valve

#66
20110260086
2011-10-27

Valve shaft apparatus for use with rotary valves

#67
20110245982
2011-10-06

Positioner

#68
20110073193
2011-03-31

Sensor replacement valve

#69
20110001070
2011-01-06

Device and method for determining a failure mode of a pneumatic control valve assembly

#70
20100193051
2010-08-05

Differential-pressure flowmeter and flow-rate controller

#71
20080308157
2008-12-18

Methods and apparatus to determine a position of a valve

#72
20070209715
2007-09-13

Failure protection apparatus for a pressure control assembly

#73
20070074759
2007-04-05

Rupture control system

#74
20070051406
2007-03-08

Shrouded valve apparatus and related methods

#75
20060219023
2006-10-05

Pressure gage for an expandable gas or fluid distribution system

#76
20050051751
2005-03-10

Combined test and bleed valve fitting

#77
18589264
2025-08-26

Methods and systems of failure protection for automated valves