ClassID:

152348

F16K21/185 - CPC Classification

Classification description:

Fluid-delivery valves, e.g. self-closing valves; Self-closing valves, i.e. closing automatically after operation closed when a rising liquid reaches a predetermined level with electrical or magnetical means, e.g. with magnetic floats, for sensing the liquid level

Recent Application in this class:
#1
20260153162
2026-06-04

TECHNIQUES FOR FLUID CONTROL

#2
20250052083
2025-02-13

POOL FILLING APPARATUS

#3
20240248495
2024-07-25

FLUID FLOW CONTROL BASED ON A LIQUID LEVEL IN A CONTAINER

#4
20230321881
2023-10-12

FLOW CONTROL OF AN INJECTION MOLDING SYSTEM

#5
20230130299
2023-04-27

Fluid flow control based on a liquid level in a container

#6
20220290775
2022-09-15

Overfill prevention valve

#7
20210303008
2021-09-30

Fluid control apparatus, fluid control device, and operation analysis system

#8
20200398468
2020-12-24

Flow control of an injection molding system

#9
20200224782
2020-07-16

Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies

#10
20200032537
2020-01-30

Fast fill and shut off system

#11
20190390787
2019-12-26

Fuel control valve

#12
20190353264
2019-11-21

Integrated flow control valve with flowrate feedback

#13
20190285194
2019-09-19

Overfill prevention valve

#14
20190242486
2019-08-08

Dual orifice venturi vacuum drawback assemblies having air breather check valve

#15
20190099776
2019-04-04

COMPRESSIBLE MEDIA APPLICATOR, APPLICATION SYSTEM AND METHODS FOR SAME

#16
20180335160
2018-11-22

Water level controller for a hydroponic system

#17
20180238067
2018-08-23

Fast fill and shut off system

#18
20180149276
2018-05-31

Venturi vacuum drawback assemblies and dual orifice venturi valve assemblies

#19
20170219116
2017-08-03

Automatic water shut-off device

#20
20170184210
2017-06-29

WATER LEVEL SWITCH DEVICE AND WATER LEVEL DETECTION AND CONTROL METHOD

#21
20170183852
2017-06-29

Electronic fill valve and assembly

#22
20150211220
2015-07-30

Water inlet valve

#23
20140076421
2014-03-20

Overfill prevention valve

#24
20100314565
2010-12-16

Automatic fluid flow control device

#25
20100229964
2010-09-16

SERVICE VALVE ASSEMBLY HAVING A STOP-FILL DEVICE AND REMOTE LIQUID LEVEL INDICATOR

#26
20100212598
2010-08-26

COMPOUND APPARATUS HAVING REDUNDANT FLOAT ACTUATED DEVICES AND SOLENOID TO CONTROL WATER LEVEL AND CHEMISTRY IN AN AQUARIUM OR SUMP

#27
20080216900
2008-09-11

Automatic Fluid Flow Control Device

#28
20070186979
2007-08-16

Device for maintaining the water level in pools, ponds and fountains

#29
20060260683
2006-11-23

Transmix prevention lock

#30
16544080
2020-10-27

Fluid reservoir level float mechanism and method of detecting proper operation thereof