ClassID:

143926

F04C2270/80 - CPC Classification

Classification description:

Control; Monitoring or safety arrangements Diagnostics

Recent Application in this class:
#1
20260055763
2026-02-26

ROTARY VANE PUMP VANE WEAR DETECTION

#2
20250035111
2025-01-30

DIAGNOSTIC CHECKS OF A GEAR PUMP IN A FLUID SYSTEM

#3
20240369053
2024-11-07

GAS COMPRESSOR

#4
20240301882
2024-09-12

COMPRESSOR

#5
20240184282
2024-06-06

PREDICTIVE MAINTENANCE OF INDUSTRIAL EQUIPMENT

#6
20240141894
2024-05-02

Method of Handling Gear Pump, Control System, Coating Apparatus and Robot System

#7
20230417235
2023-12-28

Intelligent controller for a reciprocating air compressor and methods of use thereof

#8
20230366400
2023-11-16

Gas compressor

#9
20230304498
2023-09-28

Diagnosis Method, Diagnosis Apparatus, And Diagnosis System

#10
20230304388
2023-09-28

Systems and methods for positive displacement motor diagnostics and failure prediction

#11
20230063997
2023-03-02

Refueling screw compressor

#12
20220356880
2022-11-10

Rotary slide assembly, and method for monitoring the wear of a slide in a rotary slide assembly

#13
20220333599
2022-10-20

MEASURED VALUE STANDARDIZATION

#14
20220268271
2022-08-25

SYSTEMS AND METHODS FOR CONTROL OF A PUMP MOTOR HAVING PHYSICALLY SEPARATED CONTROL BOARDS

#15
20220260075
2022-08-18

Compressor, monitoring system, and method of monitoring compressor

#16
20210397144
2021-12-23

Method for analyzing energy used for producing a unit of mass or volume of compressed gas (specific energy consumption)

#17
20210293239
2021-09-23

Compressor and monitoring system

#18
20210003137
2021-01-07

Method for analyzing, monitoring, optimizing and/or comparing energy efficiency in a multiple compressor system

#19
20200208636
2020-07-02

Methods and systems to detect an operation condition of a compressor

#20
20200200641
2020-06-25

Leak detector and leak detection method for leak-testing objects

#21
20200088623
2020-03-19

System and method for providing stable fluid flow

#22
20200064222
2020-02-27

Fault diagnosis device for fluid feed system and fault diagnosis method for fluid feed system

#23
20200040897
2020-02-06

Screw compressor for a utility vehicle

#24
20200040889
2020-02-06

Pump ripple pressure monitoring for incompressible fluid systems

#25
20190301457
2019-10-03

Fixation detecting apparatus to prevent audible sound from emanating from oil pump during oil pump operation state determination

#26
20190219316
2019-07-18

Scroll unloading detection system

#27
20190017508
2019-01-17

Variable speed compressor protection system and method

#28
20190003478
2019-01-03

Self adjusting pump for ice cream freezer

#29
20180347879
2018-12-06

Air conditioner provided with means for predicting and detecting failure in compressor and method for predicting and detecting the failure

#30
20180320690
2018-11-08

Diagnostic system

#31
20180320445
2018-11-08

Reinforced directional drilling assemblies and methods of forming same

#32
20180216462
2018-08-02

PDM performance simulation and testing

#33
20180180339
2018-06-28

Scroll unloading detection system

#34
20180166060
2018-06-14

Active cancellation of a pulsating flow with a source noise reference

#35
20180017623
2018-01-18

Progressive cavity pump (PCP) monitoring system and method

#36
20170342979
2017-11-30

Arrangement comprising a rotor, a stator and means for mutual position detection thereof

#37
20170266769
2017-09-21

Compressor diagnostic and protection system and method

#38
20170227273
2017-08-10

Controls and operation of variable frequency drives

#39
20170211573
2017-07-27

Method for twin screw positive displacement pump protection

#40
20170205316
2017-07-20

Rotary machine abnormality detection device and method thereof and rotary machine

#41
20170191922
2017-07-06

System and method for providing stable fluid flow

#42
20170096049
2017-04-06

Electrically-driven compressor for vehicle

#43
20170051740
2017-02-23

Variable speed compressor protection system and method

#44
20170016447
2017-01-19

METHOD AND APPARATUS IN CONNECTION WITH A SCREW COMPRESSOR

#45
20160348493
2016-12-01

Downhole test signals for identification of operational drilling parameters

#46
20160252091
2016-09-01

Measured value standardization

#47
20160245288
2016-08-25

Motor driven compressor

#48
20160226416
2016-08-04

Compressor having a control and diagnostic module

#49
20160201674
2016-07-14

Scroll vacuum pump and method of maintenance including replacing a tip seal of a scroll vacuum pump

#50
20160201667
2016-07-14

Sliding member for pump and pump operation state detection system

#51
20160041026
2016-02-11

Method of determining pump flow in twin screw positive displacement pumps

#52
20160040667
2016-02-11

Scroll compressor having an area of bypass holes formed at a compression chamber with a larger volume reduction gradient larger than an area of bypass holes at the other compression chamber

#53
20160003242
2016-01-07

System and method for operating a pump

#54
20150377536
2015-12-31

Controls and operation of variable frequency drives

#55
20150367463
2015-12-24

Compressor diagnostic and protection system and method

#56
20150330256
2015-11-19

Thermal energy recovery device and control method

#57
20150252805
2015-09-10

Methods and systems to detect an operation condition of a compressor

#58
20150155701
2015-06-04

System and method for compressor motor protection

#59
20140369876
2014-12-18

Gear pump and gear pump operating method

#60
20140322055
2014-10-30

Scroll vacuum pump and method of maintenance including replacing a tip seal of a scroll vacuum pump

#61
20140255215
2014-09-11

Intelligent pump monitoring and control system

#62
20140242491
2014-08-28

Fuel cell system including diagnostic technique for unbalanced compressor

#63
20140230467
2014-08-21

Scroll compressor differential pressure control during compressor shutdown transitions

#64
20140230466
2014-08-21

Scroll compressor differential pressure control during compressor startup transitions

#65
20140229014
2014-08-14

Compressor data module

#66
20140196490
2014-07-17

System and method for controlling a variable speed drive of a compressor motor

#67
20140147325
2014-05-29

Water injected scroll air compressor

#68
20140135999
2014-05-15

Method of determining pump flow in rotary positive displacement pumps

#69
20140090462
2014-04-03

Method for circuit separation testing in a double gearwheel pump

#70
20130294933
2013-11-07

Compressor diagnostic and protection system and method

#71
20130240043
2013-09-19

Variable speed compressor protection system and method

#72
20130202411
2013-08-08

Motor driven compressor and hermetic sealing inspection method for the same

#73
20130171010
2013-07-04

Motor control unit and electric pump unit

#74
20130129527
2013-05-23

Robust electric screw compressor blocked air line detection via motor current monitoring

#75
20130118247
2013-05-16

Reinforced directional drilling assemblies and methods of forming same

#76
20130064699
2013-03-14

HYDRAULIC TRANSPORT DEVICE AND ELECTROHYDRAULIC CONTROL MODULE

#77
20130004337
2013-01-03

System and method for driving a pump

#78
20120301342
2012-11-29

Variable displacement vane pump having multiple dampening springs

#79
20120209569
2012-08-16

Method for predicting a rotation fault in the rotor of a vacuum pump, and associated pumping device

#80
20120045349
2012-02-23

Pressure pulsation dampener

#81
20110243781
2011-10-06

Oilless screw compressor and compressed air cooling unit

#82
20110194963
2011-08-11

Water injected scroll air compressor

#83
20110144944
2011-06-16

Compressor diagnostic and protection system and method

#84
20110120165
2011-05-26

Air conditioner and compressor having power and saving modes of operation

#85
20100293933
2010-11-25

Method for automatically determining the condition of a hydraulic aggregate

#86
20100293397
2010-11-18

Diagnostic system

#87
20100111709
2010-05-06

Compressor protection and diagnostic system

#88
20100101250
2010-04-29

Compressor diagnostic system

#89
20100080721
2010-04-01

Rotary fluid device with multi-level phase shift control

#90
20100043409
2010-02-25

Method and system for controlling the operation of a pump

#91
20100037602
2010-02-18

Variable displacement pump

#92
20090229456
2009-09-17

Device and method for state monitoring in hydrostatic displacement units

#93
20090169364
2009-07-02

Progressive cavity apparatus with transducer and methods of forming and use

#94
20090090118
2009-04-09

Variable speed compressor protection system and method

#95
20090035151
2009-02-05

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

#96
20080307819
2008-12-18

REFRIGERATION MONITORING SYSTEM AND METHOD

#97
20080303477
2008-12-11

Oil pump systems and methods for preventing torque overload in motors of oil pump systems

#98
20080300727
2008-12-04

Method of calculating pump flow rates and an automated pump control system

#99
20080273989
2008-11-06

MULTI-STAGE GAS COMPRESSING APPARATUS

#100
20080216494
2008-09-11

COMPRESSOR DATA MODULE

#101
20080166253
2008-07-10

Oilless screw compressor and compressed air cooling unit

#102
20080044702
2008-02-21

Diagnostic system for unbalanced motor shafts for high speed compressor

#103
20070196213
2007-08-23

Metering pump with self-calibration and health prediction

#104
20070189907
2007-08-16

Pump apparatus, system having the same, and method for operating the same

#105
20070172361
2007-07-26

Cleaning method of a rotary piston vacuum pump

#106
20070035272
2007-02-15

Control device for electric compressor

#107
20070012099
2007-01-18

Vacuum line and a method of monitoring such a line

#108
20060222507
2006-10-05

Compressor protection and diagnostic system

#109
20060198735
2006-09-07

Vacuum pump and method of starting the same

#110
20060182635
2006-08-17

Compressor protection and diagnostic system

#111
20060120909
2006-06-08

Rotary piston vacuum pump with washing installation

#112
20060080978
2006-04-20

Compressor diagnostic system

#113
20060016200
2006-01-26

Compressor diagnostic method

#114
20050247073
2005-11-10

Drive unit for compressor and refrigerator

#115
20050235664
2005-10-27

Compressor diagnostic and protection system and method

#116
20050235663
2005-10-27

Compressor diagnostic and protection system and method

#117
20050235662
2005-10-27

Compressor configuration system and method

#118
20050235661
2005-10-27

Compressor diagnostic and protection system and method

#119
20050235660
2005-10-27

Compressor diagnostic and protection system

#120
20050232781
2005-10-20

Permanent low cost radio frequency compressor identification

#121
20050201882
2005-09-15

Vacuum pumping system

#122
20050197812
2005-09-08

System and method for protection system design support

#123
20050196285
2005-09-08

Compressor protection and diagnostic system

#124
20050111988
2005-05-26

Pump health monitoring

#125
20050107984
2005-05-19

Manufacturing apparatus and method for predicting life of rotary machine used in the same

#126
20050100449
2005-05-12

Compressor diagnostic and recording system

#127
20050062448
2005-03-24

Apparatus for compensating for speed error of motor

#128
17104594
2021-11-16

Digital pressure switch systems and methods