ClassID:

143865

F04C2270/05 - CPC Classification

Classification description:

Control; Monitoring or safety arrangements Speed

Sub-classes:
Recent Application in this class:
#1
20210372404
2021-12-02

Power saving vacuuming pump system based on complete-bearing-sealing and dry-large-pressure-difference root vacuuming root pumps

#2
20210348620
2021-11-11

Electric pump

#3
20210281208
2021-09-09

Variable speed drive with secondary windings

#4
20210079915
2021-03-18

ELECTRONIC CAPACITY CONTROL VALVE FOR PORTABLE SCREW COMPRESSOR

#5
20210025380
2021-01-28

Gas compressor and method for controlling same

#6
20200200169
2020-06-25

Linear actuator assembly and system

#7
20200040889
2020-02-06

Pump ripple pressure monitoring for incompressible fluid systems

#8
20190376517
2019-12-12

Screw Compressor System for a Utility Vehicle

#9
20180266415
2018-09-20

Linear actuator assembly and system

#10
20160319817
2016-11-03

METHOD OF OPTIMIZING SUPERCHARGER PERFORMANCE

#11
20160010641
2016-01-14

System and method for control and optimization of PCP pumped well operating parameters

#12
20140377084
2014-12-25

Liquid ring vacuum pump with cavitation regulation

#13
20110129356
2011-06-02

Electric-motor-driven oil pump control system

#14
20090097984
2009-04-16

Operation control device for vacuum pump and method for stopping operation thereof

#15
20090039808
2009-02-12

Motor control device and compressor

#16
20080175717
2008-07-24

System and method of operation of multiple screw compressors with continuously variable speed to provide noise cancellation

#17
20070111855
2007-05-17

Engine speed-dependent pressure regulation of oil pumps

#18
20060222506
2006-10-05

Rapidly pumping out an enclosure while limiting energy consumption

#19
20060193728
2006-08-31

System and method for controlling a variable speed compressor during stopping

#20
20050123407
2005-06-09

System and method for noise attenuation of screw compressors