ClassID:

160939

F27B3/28 - CPC Classification

Classification description:

Hearth-type furnaces, e.g. of reverberatory type ; Tank furnaces; Details, accessories, or equipment peculiar to hearth-type furnaces Arrangement of controlling, monitoring, alarm or the like devices

Recent Application in this class:
#1
20260110492
2026-04-23

WET HEARTH MELTING SYSTEMS AND METHODS FOR MELTING SOLID METALS

#2
20260085886
2026-03-26

Method For Manufacturing Metal Alloys And Metal Powders

#3
20260009094
2026-01-08

CARBON DIOXIDE EMISSION REDUCTION SYSTEM FOR ELECTRIC ARC FURNACES UTILIZING ALGAE FOR CARBON DIOXIDE ABSORBTION

#4
20250362081
2025-11-27

MELTING METHOD USING MULTIPLE IMPACTING FLAMES

#5
20250321053
2025-10-16

SENSOR PORT ASSEMBLY FOR A METALLURGICAL FURNACE

#6
20250297806
2025-09-25

MULTI-SCALE TEST DEVICE FOR CRYSTALLIZATION PERFORMANCE OF HIGH-TEMPERATURE MELTS

#7
20250283184
2025-09-11

CARBON DIOXIDE EMISSION REDUCTION SYSTEM FOR ELECTRIC ARC FURNACES UTILIZING ALGAE FOR CARBON DIOXIDE ABSORBTION

#8
20250207970
2025-06-26

WEIGHING DEVICE, AUTOMATIC SYSTEM TO CONTROL THE FEED OF CHARGE MATERIAL INTO A FURNACE, APPARATUS THAT USES THE SYSTEM AND CORRESPONDING METHOD

#9
20250185128
2025-06-05

FURNACE POWER SUPPLY APPARATUS, SYSTEM FOR THE POWER SUPPLY OF AN ELECTRIC ARC FURNACE OR A SUBMERGED ARC-RESISTANCE FURNACE, ELECTRIC ARC FURNACE OR SUBMERGED ARC-RESISTANCE FURNACE AND OPERATING METHOD

#10
20250155195
2025-05-15

METHOD TO SUPPLY ELECTRIC POWER TO FURNACES FOR MELTING AND/OR HEATING METAL MATERIALS, AND CORRESPONDING APPARATUS

#11
20250146898
2025-05-08

Method and Device for Detecting a Water Leak in A Metallurgical Melting Furnace

#12
20250146753
2025-05-08

ELECTRIC ARC FURNACE, METHOD FOR OPERATING AN ELECTRIC ARC FURNACE, AND USE OF AN ELECTRIC ARC FURNACE

#13
20250146752
2025-05-08

SIDEWALL LEAK CONTAINMENT AND DETECTION SYSTEM FOR A FURNACE

#14
20250142692
2025-05-01

OPERATING METHOD FOR AN ELECTRIC ARC FURNACE

#15
20250119991
2025-04-10

OPERATING METHOD FOR AN ARC FURNACE

#16
20240302100
2024-09-12

MELTING PLANT AND CORRESPONDING MANAGEMENT METHOD

#17
20240114604
2024-04-04

POWER SUPPLY FOR AN ELECTRIC ARC FURNACE

#18
20240085110
2024-03-14

METHOD OF PRODUCING MOLTEN IRON USING ELECTRIC FURNACE INCLUDING VIDEO DEVICE

#19
20240049368
2024-02-08

Method And Apparatus For Melting Metal Using Microwave Technology

#20
20230314077
2023-10-05

Continuously Charged Electric Arc Furnace System

#21
20230258404
2023-08-17

INSPECTION APPARATUS FOR MELTING FURNACES THAT CAN BE USED IN THE STEEL INDUSTRY AND METHOD

#22
20230235959
2023-07-27

Load Lock System And Method For Manufacturing Metal Alloys And Metal Powder

#23
20230204291
2023-06-29

METHOD AND SYSTEM FOR COMPENSATING FOR ELECTRODE BURN-OFF IN AN ARC FURNANCE

#24
20230040089
2023-02-09

MELTING METHOD IN AN ELECTRIC ARC FURNACE AND MELTING APPARATUS

#25
20230037249
2023-02-02

Systems and methods for graphite electrode identification and monitoring

#26
20230003450
2023-01-05

INTELLIGENT SYSTEM FOR CONTROLLING OPERATIONAL PARAMETERS OF A SMELTING FURNACE

#27
20220412651
2022-12-29

Converter Device and Electric Power Supply Apparatus

#28
20220244107
2022-08-04

Immersion device for temperature measurement and method for position detection

#29
20220234934
2022-07-28

REFILL SYSTEM WITH IMPROVED UTILIZATION RATE OF ULTRA-THIN GLASS PRODUCTION PROCESS

#30
20220154300
2022-05-19

Sensing and control of position of an electrical discharge

#31
20220034586
2022-02-03

Method for operating an electric arc furnace

#32
20220026147
2022-01-27

Furnace controller and method of operating a furnace

#33
20220007473
2022-01-06

Method and apparatus for melting metal using microwave technology

#34
20210395845
2021-12-23

Estimation of arc location in three dimensions

#35
20210333047
2021-10-28

Method and system for detection of low quality graphite electrode on an EAF

#36
20210318233
2021-10-14

In situ apparatus for furnace off-gas constituent and flow velocity measurement

#37
20210231373
2021-07-29

Melting method in an electric arc furnace and corresponding apparatus

#38
20210231372
2021-07-29

Electric power method for an electric furnace and corresponding apparatus

#39
20210164731
2021-06-03

Furnace assembly for a metal-making process

#40
20200355731
2020-11-12

Sensing and control of position of an electrical discharge

#41
20200355436
2020-11-12

Systems and methods for graphite electrode identification and monitoring

#42
20200284512
2020-09-10

Apparatus and method for melting metal material

#43
20200255315
2020-08-13

GLASS TANK FURNACE AND GLASS MELTING METHOD

#44
20200241078
2020-07-30

Estimation of arc location in three dimensions

#45
20200224972
2020-07-16

Continuous horizontal-feeding preheating device and preheating enhancement method thereof

#46
20200173867
2020-06-04

SYSTEMS AND METHODS FOR DETERMINING THE TEMPERATURE AND/OR LEVEL OF A MOLTEN METAL BATH IN A VESSEL

#47
20200173722
2020-06-04

Dual-purpose sintering furnace

#48
20200024676
2020-01-23

Cooling plate for metallurgical furnace

#49
20200011603
2020-01-09

Damage detection system and method of use

#50
20190390908
2019-12-26

Furnace assembly for a metal-making process

#51
20190323775
2019-10-24

METAL MELTING AND HOLDING FURNACE

#52
20190277706
2019-09-12

Systems and methods for determining the temperature and/or level of a molten metal bath in a vessel

#53
20190219615
2019-07-18

Sensing and control of position of an electrical discharge

#54
20190191502
2019-06-20

Apparatus and method to electrically power an electric arc furnace

#55
20190185962
2019-06-20

Method for reducing salt usage in aluminum recycling

#56
20190136334
2019-05-09

Device and method for sensing a conveying rate of a liquid material

#57
20190056177
2019-02-21

Furnace

#58
20190011183
2019-01-10

Method and system for determining the mass of feedstock on a conveyor

#59
20180347908
2018-12-06

Equipment for measurement and control of load material fed into a furnace

#60
20180245851
2018-08-30

Method and arrangement for monitoring characteristics of a furnace process in a furnace space and process monitoring unit

#61
20180242411
2018-08-23

Flicker control for electric arc furnace

#62
20180238543
2018-08-23

SAND BED DOWNDRAFT FURNACE AND ACTIVATED CARBON SCRUBBER

#63
20180195803
2018-07-12

Method and arrangement for measurement of electrode paste in an electrode column of an electric arc furnace

#64
20180067201
2018-03-08

Method and apparatus for measuring the length of an electrode in an electric arc furnace

#65
20170284872
2017-10-05

Molten material thermocouple methods and apparatus

#66
20170268823
2017-09-21

MEASUREMENT OF ELECTRODE LENGTH IN A MELTING FURNACE

#67
20170150556
2017-05-25

ELECTRIC ARC FURNACE COMPRISING A SAFETY DEVICE, AND A METHOD FOR PROTECTING PERIPHERAL DEVICES ON ELECTRIC ARC FURNACES

#68
20170138668
2017-05-18

Raw material supply apparatus, raw material supply method and flash smelting furnace

#69
20170108273
2017-04-20

Submerged combustion furnace for producing frit and method for producing frit

#70
20170034878
2017-02-02

Apparatus and method to electrically power an electric arc furnace

#71
20170016675
2017-01-19

Furnace cooling panel monitoring system

#72
20160320126
2016-11-03

Raw material supply method

#73
20160282048
2016-09-29

METALLURGICAL FURNACE PROBE WITH EJECTING CARTRIDGE SENSOR

#74
20160258682
2016-09-08

Measurement of electrical variables on a DC furnace

#75
20160153714
2016-06-02

METHOD FOR OPERATING AN ELECTRIC ARC FURNACE AND ELECTRIC ARC FURNACE

#76
20160131428
2016-05-12

Method for detection of the loss of an electric arc furnace measurement reference

#77
20160123669
2016-05-05

Method for tapping a steel making furnace

#78
20160105932
2016-04-14

Method and apparatus for dynamic selection of electric arc-furnace control set-points

#79
20160069748
2016-03-10

Apparatus for temperature measurements of a molten bath in a top submerged injection lance installation

#80
20160061529
2016-03-03

Equipment for measurement and control of load material or scrap feeding into a furnace and relative method

#81
20160003542
2016-01-07

AUTOMATIC FEEDING APPARATUS FOR ELECTRIC ARC FURNACE

#82
20150259758
2015-09-17

Starting a smelting process

#83
20150226484
2015-08-13

Flicker reduction in electric arc furnaces by means of flicker prediction from the state determination in the initial phase of the smelting process

#84
20150139267
2015-05-21

DEVICE AND METHOD TO CONTROL THE CHARGE IN ELECTRIC ARC FURNACES

#85
20150098484
2015-04-09

Tapping device and method using induction heat for melt

#86
20150091224
2015-04-02

Raw material supply apparatus, raw material supply method and flash smelting furnace

#87
20150049780
2015-02-19

Method for operating an arc furnace and smelting system having an arc furnace operated according to the method

#88
20150003488
2015-01-01

Control system for a melting process

#89
20140319118
2014-10-30

Fiber oxidation oven with multiple independently controllable heating systems

#90
20140305261
2014-10-16

Method and a control system for controlling a melting and refining process

#91
20140185645
2014-07-03

Method for operating an electric arc furnace and melting plant having an electric arc furnace operated according to said method

#92
20140130636
2014-05-15

Method and a control system for controlling a melting process

#93
20140123758
2014-05-08

Furnace structural integrity monitoring systems and methods

#94
20140112365
2014-04-24

METHOD FOR OPERATING ALTERNATING-CURRENT ELECTRIC ARC FURNACE, DEVICE FOR PERFORMING METHOD, AND ALTERNATING-CURRENT ELECTRIC ARC FURNACE HAVING SUCH DEVICE

#95
20140016663
2014-01-16

Furnace damper control system

#96
20130307202
2013-11-21

Method and apparatus for heating metals

#97
20130211581
2013-08-15

Method and control and tracking system of the charge of material transported by a continuous supply conveyor of a metallurgical furnace, particularly an electric furnace for the production of steel

#98
20130121365
2013-05-16

Electrode consumption monitoring system

#99
20130110422
2013-05-02

Fault detector for operating process of electric arc furnace and method thereof

#100
20130051423
2013-02-28

METHOD FOR DETERMINING A TIME FOR CHARGING AN ELECTRIC ARC FURNACE WITH MATERIAL TO BE MELTED, SIGNAL PROCESSING DEVICE, MACHINE-READABLE PROGRAM CODE, STORAGE MEDIUM AND ELECTRIC ARC FURNACE

#101
20130016754
2013-01-17

Injector cooling block for holding at least one injector

#102
20130000445
2013-01-03

METHOD OF SETTING A SLAG CONSISTENCY AND APPARATUS FOR CARRYING OUT THE METHOD

#103
20120327968
2012-12-27

ELECTRODE ARM OF A METALLURGICAL MELTING FURNACE

#104
20120320942
2012-12-20

METHOD FOR OPERATING AN ARC FURNACE, CONTROL AND/OR REGULATING DEVICE FOR AN ARC FURNACE, AND ARC FURNACE

#105
20120183010
2012-07-19

Method for controlling a melt process in an arc furnace and signal processing component, program code and data medium for performing said method

#106
20120152057
2012-06-21

ELECTRIC ARC MELTING FACILITY AND METHOD FOR PRODUCING MOLTEN METAL BY USING THE ELECTRIC ARC MELTING FACILITY

#107
20120008661
2012-01-12

APPARATUS FOR MEASURING THE POSITION OF THE ELECTRODES IN AN ELECTRIC FURNACE

#108
20110292961
2011-12-01

METHOD AND DEVICE FOR CONTROLLING A CARBON MONOXIDE OUTPUT OF AN ELECTRIC ARC LIGHT OVEN

#109
20110244412
2011-10-06

MELTING FURNACE

#110
20110209579
2011-09-01

System for furnace slopping prediction and lance optimization

#111
20110154949
2011-06-30

Method for operating a furnace and device for carrying out the method

#112
20110019712
2011-01-27

METHOD FOR OPTIMIZING A FURNACE CAMPAIGN

#113
20110007773
2011-01-13

Method for operating an arc furnace comprising at least one electrode, regulating and/or control device, machine-readable program code, data carrier and arc furnace for carrying out said method

#114
20100332160
2010-12-30

Method for determining a radiation measurement for thermal radiation, arc furnace, a signal processing device programme code and storage medium for carrying out said method

#115
20100326240
2010-12-30

Control method for melting a metal charge and weighing device used in said method

#116
20100315098
2010-12-16

Method for determining at least one state variable of an electric arc furnace, and electric arc furnace

#117
20100208765
2010-08-19

Furnace damper control system and method

#118
20090230159
2009-09-17

METHOD FOR POURING OFF MELT FROM A TILTABLE METALLURGICAL VESSEL AND INSTALLATION FOR CARRYING OUT THE METHOD

#119
20090219968
2009-09-03

CONTROL SYSTEM FOR AN ARC FURNACE

#120
20090102103
2009-04-23

Infrared Light Sensors for Diagnosis and Control of Industrial Furnaces

#121
20090031854
2009-02-05

Apparatus for the combustion of gas exiting from a furnace, for the preheating of scraps entering the furnace itself and related process

#122
20090020051
2009-01-22

Method and apparatus for melting metal

#123
20080285615
2008-11-20

Method for Determining at Least One State Variable of an Electric Arc Furnace, and Electric Arc Furnace

#124
20080267250
2008-10-30

Equipment for measurement and control of load material or scrap feeding into a furnace and relative method

#125
20080267249
2008-10-30

Method to control the feed of the metal charge for electric arc furnaces

#126
20080251233
2008-10-16

Integrated process control system for electric induction metal melting furnaces

#127
20080192796
2008-08-14

Method and Device for Operating an Electric-Arc Furnace

#128
20080191396
2008-08-14

Method and apparatus for melting metal

#129
20080111286
2008-05-15

Metallurgical vessel with fixing system

#130
20080106830
2008-05-08

AC melt to bushing current detector

#131
20080013590
2008-01-17

SYSTEM AND METHOD FOR CONTROLLING POWER ACROSS MULTIPLE ELECTRODES IN A FURNACE

#132
20070171954
2007-07-26

Method for processing aluminium in a rotary or a reverberating furnace

#133
20070133651
2007-06-14

Method for controlling foaming of slag in an electric arc furnace

#134
20070119275
2007-05-31

Method for tapping a steel making furnace

#135
20070035072
2007-02-15

Transfer system for liquid metals

#136
20070034054
2007-02-15

Method for the treatment of aluminum in a furnace

#137
20070006681
2007-01-11

Method and apparatus for melting metal

#138
20070001352
2007-01-04

Method and apparatus for testing characteristics of a furnace melt

#139
20060272453
2006-12-07

Flex-flame burner and combustion method

#140
20060108721
2006-05-25

Single vessel blast furnace and steel making/gasifying apparatus and process

#141
20060083286
2006-04-20

System and method for controlling electrical power across multiple furnaces using variable reactors

#142
20060050760
2006-03-09

System and method for controlling total electrical power across multiple furnaces using electrode positioning

#143
20060050759
2006-03-09

System and method of minimizing loss of electrical conduction during input of feed material to a furnace

#144
20060050758
2006-03-09

System and method for controlling power across multiple electrodes in a furnace

#145
20050279183
2005-12-22

Device for performing measurements and/or taking samples in molten metals

#146
20050236747
2005-10-27

Process and apparatus for uniform combustion within a molten material

#147
20050103159
2005-05-19

Aluminum melting method using analysis of fumes coming from the furnace