ClassID:

143930

F04C2280/02 - CPC Classification

Classification description:

Arrangements for preventing or removing deposits or corrosion Preventing solid deposits in pumps, e.g. in vacuum pumps with chemical vapour deposition [CVD] processes

Recent Application in this class:
#1
20250101979
2025-03-27

Control Device for Hydraulic Control Valve

#2
20200408211
2020-12-31

Device and method for evacuating a chamber and purifying the gas extracted from said chamber

#3
20200291757
2020-09-17

Progressive cavity pump and methods for using the same

#4
20200284262
2020-09-10

Progressing cavity device with cutter disks

#5
20190257309
2019-08-22

Eccentric bush assembly structure of scroll compressor

#6
20190211826
2019-07-11

Screw compressor for a utility vehicle

#7
20190207480
2019-07-04

Drive device

#8
20190181723
2019-06-13

Drive device

#9
20190170140
2019-06-06

Drive device

#10
20180311598
2018-11-01

Multi-phase pumping system with self-purging filtration

#11
20180119697
2018-05-03

Progressing cavity device with cutter disks

#12
20170356445
2017-12-14

Eccentric bush assembly structure of scroll compressor

#13
20160245284
2016-08-25

Fluid pump

#14
20160131135
2016-05-12

Rotary compressor with silicon dioxide

#15
20150114101
2015-04-30

Deposit detection device for exhaust pump and exhaust pump

#16
20140308589
2014-10-16

Fluid compressor and fuel cell vehicle

#17
20130340842
2013-12-26

Vacuum pumping system

#18
20130164147
2013-06-27

Vacuum pumping

#19
20120273133
2012-11-01

SURFACE PROTECTIVE FILM, GAS CONTACT MEMBER, GAS PROCESSING APPARATUS, AND MECHANICAL PUMP

#20
20120077104
2012-03-29

FLUID COMPRESSOR AND FUEL CELL VEHICLE

#21
20110232689
2011-09-29

METHOD FOR CLEANING A VACUUM PUMP

#22
20110158826
2011-06-30

Feed device for a precursor

#23
20100275843
2010-11-04

HVPE REACTOR ARRANGEMENT

#24
20100172782
2010-07-08

Vacuum pump

#25
20100086883
2010-04-08

METHOD FOR REACTING SELF-IGNITING DUSTS IN A VACUUM PUMP DEVICE

#26
20090269231
2009-10-29

Method of Pumping Gas

#27
20090035151
2009-02-05

Vacuum pump self-diagnosis method, vacuum pump self-diagnosis system, and vacuum pump central monitoring system

#28
20080226485
2008-09-18

Vacuum pump having rotation body cleaning unit with spraying holes on an output surface of the cleaning body surrounding a shaft

#29
20080220164
2008-09-11

Feed device for a precursor

#30
20080089795
2008-04-17

Water-injected compressor

#31
20080078503
2008-04-03

Mechanical pump operating well for a long term and method of manufacturing the same

#32
20080063536
2008-03-13

Method of controlling the stopping operation of vacuum pump and device therefor

#33
20080038132
2008-02-14

Rotary Dry Vacuum Pump

#34
20080025858
2008-01-31

Composite dry vacuum pump having roots and screw rotor

#35
20070172361
2007-07-26

Cleaning method of a rotary piston vacuum pump

#36
20060083651
2006-04-20

Composite dry vacuum pump having roots rotor and screw rotor