ClassID:

144418

F04F5/22 - CPC Classification

Classification description:

Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating of multi-stage type

Recent Application in this class:
#1
20240426321
2024-12-26

MULTI-STAGE VACUUM GENERATOR

#2
20240200578
2024-06-20

MULTI-EJECTOR VACUUM GENERATOR, FASTENING MEANS MULTI-EJECTOR VACUUM GENERATOR AND VACUUM GENERATOR PUMP

#3
20240068489
2024-02-29

Vacuum ejector pump with multiple nozzles

#4
20230304510
2023-09-28

MULTISTAGE VACUUM

#5
20220056926
2022-02-24

RECOVERING WASTE OIL

#6
20210270212
2021-09-02

TANK VENTILATION

#7
20210180616
2021-06-17

Multistage aspirator for inflatable assemblies

#8
20210131451
2021-05-06

Switched suction jet pump

#9
20200088213
2020-03-19

Pressure-controlling device, and pressure-using apparatus

#10
20190234430
2019-08-01

Low-cost evacuator for an engine having tuned Venturi gaps

#11
20190203738
2019-07-04

Vacuum pump using profile

#12
20180274410
2018-09-27

Multi-stage jet suction pump

#13
20170152868
2017-06-01

Multi-stage vacuum ejector

#14
20170067488
2017-03-09

Vacuum pump

#15
20170037874
2017-02-09

Ejector assembly and vacuum pump

#16
20160258448
2016-09-08

Evacuation of a film chamber

#17
20150354601
2015-12-10

Vacuum ejector nozzle with elliptical diverging section

#18
20150337866
2015-11-26

Vacuum Ejector With Multi-Nozzle Drive Stage

#19
20150316074
2015-11-05

Vacuum ejector with tripped diverging exit flow

#20
20150308461
2015-10-29

Vacuum ejector with multi-nozzle drive stage and booster

#21
20150300377
2015-10-22

Multi-stage vacuum ejector with molded nozzle having integral valve elements

#22
20150076249
2015-03-19

Multistage ejector

#23
20140050595
2014-02-20

Quick-release vacuum pump

#24
20130032981
2013-02-07

Compressed-air-operated vacuum generator or vacuum gripper

#25
20110123359
2011-05-26

Pneumatic vacuum generator

#26
20080292476
2008-11-27

Vacuum ejector pumps

#27
20050232783
2005-10-20

Vacuum pump and method for generating sub-pressure