ClassID:

161488

F27D7/04 - CPC Classification

Classification description:

Forming, maintaining, or circulating atmospheres in heating chambers Circulating atmospheres by mechanical means

Sub-classes:
Recent Application in this class:
#1
20260092741
2026-04-02

REFLOW OVEN

#2
20260085374
2026-03-26

JET-TYPE DIRECT-FIRED PREHEATING SYSTEM

#3
20250362087
2025-11-27

METHOD FOR PROVIDING A ROTATING SHAFT INTO A HIGH PRESSURE, HIGH TEMPERATURE FURNACE

#4
20250338858
2025-11-06

METHOD FOR CONTROLLING A TUNNEL OVEN AND TUNNEL OVEN WITH FLOW CONTROL

#5
20250264228
2025-08-21

AIR FLOW CONTROL TECHNOLOGY FOR OVENS

#6
20250237438
2025-07-24

Cylindrical heating apparatus for aluminum foil annealing furnaces

#7
20250198704
2025-06-19

METHOD FOR PROVIDING A ROTATING SHAFT INTO A HIGH PRESSURE, HIGH TEMPERATURE FURNACE

#8
20250044030
2025-02-06

DEVICE FOR TEMPERING AN OBJECT

#9
20250035125
2025-01-30

FAN ASSEMBLY

#10
20250027512
2025-01-23

FAN ASSEMBLY

#11
20230339147
2023-10-26

AUTOCLAVE

#12
20230265013
2023-08-24

Method for the Thermal Treatment of Mineral Raw Materials

#13
20230241560
2023-08-03

DEVICE FOR HOMOGENIZING A GAS DISTRIBUTION IN A PROCESS CHAMBER

#14
20230173802
2023-06-08

OVEN SYSTEM FOR HEATING LAMINATED GLASS PANES

#15
20220397347
2022-12-15

SHUTTLE KILN EXHAUST CONFIGURATION

#16
20220128304
2022-04-28

HEATING APPARATUS, METHOD OF USING AND MAKING THE SAME

#17
20220090863
2022-03-24

Hot Air Flow Direction Control Mechanism of Base Board Baking Machine

#18
20220034588
2022-02-03

Melt furnace header gate system

#19
20220018548
2022-01-20

Air flow control technology for ovens

#20
20210316263
2021-10-14

System for chemical transformation of 3D state materials

#21
20210291221
2021-09-23

Resin curing device and resin curing method

#22
20210215427
2021-07-15

Industrial oven with fabric duct

#23
20200354859
2020-11-12

CONTROLLED ATMOSPHERE RECIRCULATION OVEN

#24
20200340747
2020-10-29

Convection furnace

#25
20200278153
2020-09-03

Heat-treating furnace

#26
20200156344
2020-05-21

Pressing arrangement

#27
20200132374
2020-04-30

Hot Air Flow Direction Control Mechanism of Base Board Baking Machine

#28
20200122235
2020-04-23

Pressing arrangement

#29
20200103170
2020-04-02

Conveying a material to be conveyed

#30
20200103107
2020-04-02

Furnace

#31
20200088468
2020-03-19

Roasting Furnace for Producing Industrial Catalyst

#32
20200080781
2020-03-12

HEAT TREATMENT APPARATUS AND HEAT TREATMENT METHOD

#33
20190162474
2019-05-30

Batch furnace for annealing material and method for heat treatment of a furnace material

#34
20190049417
2019-02-14

Oven insulation arrangement

#35
20190032168
2019-01-31

Continuous annealing apparatus

#36
20190003771
2019-01-03

Heating furnace for heating annular component

#37
20180209740
2018-07-26

Laminar flow shrink oven

#38
20180142339
2018-05-24

Method and device for reaction control

#39
20180051351
2018-02-22

Aluminum foil annealing furnace

#40
20180036697
2018-02-08

Apparatus and method for calcination of gypsum

#41
20180010854
2018-01-11

Heat treatment device

#42
20170336070
2017-11-23

Furnace

#43
20170138668
2017-05-18

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

#44
20170131031
2017-05-11

Combined fan and ejector cooling

#45
20170089641
2017-03-30

Hinged baffle for autoclave that deploys at a target temperature during a run cycle

#46
20170022596
2017-01-26

Carburizing device

#47
20170003074
2017-01-05

Heating device for annular component and annular cavity thereof

#48
20160348976
2016-12-01

Airflow in autoclaves

#49
20160320126
2016-11-03

Raw material supply method

#50
20160313064
2016-10-27

Stirring fan for heat treatment apparatus, and heat treatment apparatus including the same

#51
20160312352
2016-10-27

Carburizing device

#52
20160290721
2016-10-06

Continuous annealing furnace for annealing steel strip, method for continuously annealing steel strip, continuous hot-dip galvanizing facility, and method for manufacturing hot-dip galvanized steel strip

#53
20160172218
2016-06-16

Heat treatment apparatus, heat treatment method, and storage medium

#54
20160059504
2016-03-03

Hot isostatic pressing device

#55
20160040322
2016-02-11

Carbon fiber manufacturing method

#56
20160039163
2016-02-11

Hot isostatic pressing device

#57
20160007413
2016-01-07

HEATING PLANT FOR CONTAINER PREFORMS

#58
20150354898
2015-12-10

Gas quenching cell

#59
20150323257
2015-11-12

Heating furnace

#60
20150275325
2015-10-01

Continuous furnace system

#61
20150184941
2015-07-02

METHOD FOR PRODUCING CARBON FIBER BUNDLE AND HEATING FURNACE FOR CARBON FIBER PRECURSOR FIBER BUNDLE

#62
20150140218
2015-05-21

Continuous annealing furnace for annealing steel strip, method for continuously annealing steel strip, continuous hot-dip galvanizing facility, and method for manufacturing hot-dip galvanized steel strip

#63
20150140217
2015-05-21

Continuous annealing furnace for steel strip, continuous annealing method, continuous galvanizing apparatus and method for manufacturing galvanized steel strip (as amended)

#64
20150129642
2015-05-14

Reflow oven and methods of treating surfaces of the reflow oven

#65
20150115508
2015-04-30

Burning apparatus and method for manufacturing reduced iron using the same

#66
20150110705
2015-04-23

Carbon fiber precursor acrylic fiber bundle, method for thermally oxidizing part thereof, thermal oxidation oven, and process for producing carbon fiber bundle

#67
20150091224
2015-04-02

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

#68
20150076751
2015-03-19

Method of reducing dew point of atmosphere gas in annealing furnace, apparatus for the same and method of producing cold-rolled and annealed steel sheet

#69
20140349240
2014-11-27

HEAT TREATMENT FURNACE

#70
20140318317
2014-10-30

SYSTEMS AND METHODS FOR EXTRACTING PRECIOUS METAL FROM FOULED CARBON

#71
20140284851
2014-09-25

Hardening cell

#72
20140272745
2014-09-18

Combined fan and ejector cooling

#73
20140151941
2014-06-05

Hood-type annealing furnace and method for operating the same

#74
20130344451
2013-12-26

Pressure vessel and method for cooling a pressure vessel

#75
20130337395
2013-12-19

Pressing arrangement

#76
20130171578
2013-07-04

Oxidation furnace

#77
20130040256
2013-02-14

METHOD FOR PRE-HEATING ANNEALING MATERIAL IN A HOOD-TYPE ANNEALING SYSTEM

#78
20120199109
2012-08-09

Method and system for variable speed blower control

#79
20120048508
2012-03-01

Method for thermally cycling an object including a polarizable material

#80
20120009536
2012-01-12

Method for preheating annealing products in a hood-type annealing system

#81
20120000632
2012-01-05

Forced-fluid switch

#82
20110176576
2011-07-21

Melting furnace

#83
20110115137
2011-05-19

Retort Furnace for Heat Treating Metal Workpieces

#84
20110114621
2011-05-19

Retort Furnace for Heat Treating Metal Workpieces

#85
20100273121
2010-10-28

OVEN EXHAUST FAN SYSTEM AND METHOD

#86
20100196836
2010-08-05

Sealing mechanism for a vacuum heat treating furnace

#87
20100127421
2010-05-27

BI-DIRECTIONAL FLOW FOR PROCESSING SHAPED BODIES

#88
20100084796
2010-04-08

Iron core annealing furnace

#89
20090114635
2009-05-07

Method for raising chamber temperature and heating apparatus thereof

#90
20080116621
2008-05-22

Method and apparatus for thermally debinding a ceramic cellular green body

#91
20080023892
2008-01-31

Device and Method for Heat Treating, in Particular, Metallic Workpieces

#92
20070184396
2007-08-09

Method and system for process gas entrainment and mixing in a kiln system

#93
20070122761
2007-05-31

Gas cooling type vacuum heat treating furnace and cooling gas direction switching device therefor

#94
20070117061
2007-05-24

Device and method for heating up extrusion dies prior to their installation in an extruder

#95
20070042313
2007-02-22

Reflow Furnace

#96
20070037109
2007-02-15

Self-cooled high-temperature fan apparatus

#97
20060096480
2006-05-11

Device for heat-treating a coating of flat-bed offset printing plates

#98
20060051715
2006-03-09

Thermal processing system having slot eductors

#99
20060049556
2006-03-09

Device for homogeneous impingement of a planar surface of a tool with a heated gas

#100
17323802
2022-03-29

Induction oven with selectable resonance frequency