ClassID:

152349

F16K21/20 - 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 by means making use of air-suction through an opening closed by the rising liquid

Recent Application in this class:
#1
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2025-07-17

INTERFACE AND MOTION TRANSLATION DEVICES, SYSTEMS, AND METHODS FOR ENDOSCOPE VALVES

#2
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DEVICES, SYSTEMS, AND METHODS FOR CONTROLLING FLUIDS IN ENDOSCOPE SYSTEMS

#3
20250057393
2025-02-20

DEVICES, SYSTEMS, AND METHODS FOR ENDOSCOPE FLUIDICS

#4
20250049296
2025-02-13

DEVICES, SYSTEMS, AND METHODS FOR ENDOSCOPE VALVE CONTROL

#5
20240298877
2024-09-12

DEVICES, SYSTEMS, AND METHODS FOR FLUID CONTROL IN ENDOSCOPE SYSTEMS

#6
20240032774
2024-02-01

MOTION TRANSLATION AND INTERFACE DEVICES, SYSTEMS, AND METHODS FOR ENDOSCOPE VALVES

#7
20210298572
2021-09-30

Devices, systems, and methods for fluid control in endoscope systems

#8
20210298571
2021-09-30

Motion translation and interface devices, systems, and methods for endoscope valves

#9
20210298570
2021-09-30

Devices, systems, and methods for endoscope fluidics

#10
20210298569
2021-09-30

Devices, systems, and methods for endoscope valve control

#11
20210298568
2021-09-30

Devices, systems, and methods for controlling fluids in endoscope systems

#12
20210298567
2021-09-30

Interface and motion translation devices, systems, and methods for endoscope valves

#13
20210002879
2021-01-07

Siphon activated valve

#14
20190383412
2019-12-19

Valve and associated methods

#15
20190071853
2019-03-07

Flow diverter with antisiphon

#16
20180080206
2018-03-22

Vacuum operated valve

#17
20180066421
2018-03-08

Siphon activated valve

#18
20180051450
2018-02-22

Flow diverter with antisipohon

#19
20170082215
2017-03-23

Automatic fill system

#20
20090297271
2009-12-03

Turf Playing Surface Aeration and Drainage System