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CPC
C21B7/18
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Parent Industries
C
CHEMISTRY METALLURGY
C21
Iron metallurgy
C21B
MANUFACTURE OF IRON OR STEEL
C21B7/00
Blast furnaces
Current Industry
C21B7/18
Bell-and-hopper arrangements
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Patents Grants
last 30 patents
Information
Patent Grant
Blast furnace apparatus and operation method for blast furnace
Patent number
11,940,215
Issue date
Mar 26, 2024
JFE Steel Corporation
Yusuke Kashihara
C21 - METALLURGY OF IRON
Information
Patent Grant
Sealing valve arrangement for a shaft furnace charging installation
Patent number
11,199,359
Issue date
Dec 14, 2021
Paul Wurth S.A.
Charles Steichen
C21 - METALLURGY OF IRON
Information
Patent Grant
Sealing valve arrangement for a shaft furnace charging installation
Patent number
8,568,653
Issue date
Oct 29, 2013
Paul Wurth S.A.
Guy Thillen
C21 - METALLURGY OF IRON
Information
Patent Grant
Device for opening or closing an opening, in particular a bottom op...
Patent number
7,156,371
Issue date
Jan 2, 2007
Z&J Technologies GmbH
Frank Engl
C21 - METALLURGY OF IRON
Information
Patent Grant
Throat closing device for shaft furnaces, especially blast furnaces...
Patent number
6,685,878
Issue date
Feb 3, 2004
SMS Demag AG
Jörg Overländer
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus for charging a shaft-type cupola furnace
Patent number
6,056,914
Issue date
May 2, 2000
William A. Van Dril
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus for charging a shaft furnace
Patent number
5,965,085
Issue date
Oct 12, 1999
Zakrytoe Aktsionernoe Obschestvo Nauchno-Proizvodstvenny I Kommerchesky Tsent...
German Vasilievich Abramin
C21 - METALLURGY OF IRON
Information
Patent Grant
Charging device for a shaft furnace
Patent number
5,829,968
Issue date
Nov 3, 1998
Paul Wurth S.A.
Emile Lonardi
C21 - METALLURGY OF IRON
Information
Patent Grant
Suspension device for a rotating body
Patent number
5,749,820
Issue date
May 12, 1998
Paul Wurth S.A.
Emile Lonardi
C21 - METALLURGY OF IRON
Information
Patent Grant
Charge preheater
Patent number
5,645,791
Issue date
Jul 8, 1997
Fuchs Systemtechnik GmbH
Gerhard Fuchs
C21 - METALLURGY OF IRON
Information
Patent Grant
System for solid material charging into vertical reactors by electr...
Patent number
5,494,263
Issue date
Feb 27, 1996
Centro de Investigacion y Asistencia Tecnica del Edo. de Qro, A.C.
Carlos A. Beckwith
C21 - METALLURGY OF IRON
Information
Patent Grant
Charging device with member for regulating the flow rate
Patent number
5,411,242
Issue date
May 2, 1995
Paul Wurth S.A.
Emile Lonardi
C21 - METALLURGY OF IRON
Information
Patent Grant
Installation for charging a shaft furnace
Patent number
5,046,908
Issue date
Sep 10, 1991
Paul Wurth S.A.
Giovanni Cimenti
C21 - METALLURGY OF IRON
Information
Patent Grant
Sealing shutter for a shaft furnace
Patent number
4,986,516
Issue date
Jan 22, 1991
Paul Wurth S.A.
Emile Lonardi
C21 - METALLURGY OF IRON
Information
Patent Grant
Charging arrangement for shaft furnaces, in particular blast furnaces
Patent number
4,949,940
Issue date
Aug 21, 1990
Kortec AG
Ralph Weber
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus for controlling hydraulic jacks mounted on a rotary hopper
Patent number
4,893,735
Issue date
Jan 16, 1990
Paul Wurth S.A.
Emile Lonardi
C21 - METALLURGY OF IRON
Information
Patent Grant
Furnace charging throat construction
Patent number
4,881,869
Issue date
Nov 21, 1989
Man Gutehoffnungshuette GmbH
Bernhard Henneken
C21 - METALLURGY OF IRON
Information
Patent Grant
Furnace charging throat construction
Patent number
4,878,655
Issue date
Nov 7, 1989
Man Gutehoffnungshuette, GmbH
Bernhard Henneken
C21 - METALLURGY OF IRON
Information
Patent Grant
Method and apparatus for correcting the falling path in a loading i...
Patent number
4,878,797
Issue date
Nov 7, 1989
Paul Wurth S.A.
Emile Lonardi
C21 - METALLURGY OF IRON
Information
Patent Grant
Supporting framework for a loading installation of a shaft furnace
Patent number
4,859,131
Issue date
Aug 22, 1989
Paul Wurth S.A.
Emile Lonardi
C21 - METALLURGY OF IRON
Information
Patent Grant
Mechanism for operating a metering valve
Patent number
4,821,998
Issue date
Apr 18, 1989
Paul Wurth S.A.
Edouard Legille
C21 - METALLURGY OF IRON
Information
Patent Grant
Mechanism for operating a metering valve
Patent number
4,815,696
Issue date
Mar 28, 1989
Paul Wurth, S.A.
Emile Lonardi
C21 - METALLURGY OF IRON
Information
Patent Grant
Process and apparatus for charging a shaft furnace
Patent number
4,767,258
Issue date
Aug 30, 1988
Marc Solvi
C21 - METALLURGY OF IRON
Information
Patent Grant
Device for closing a top central opening of a vessel and its applic...
Patent number
4,755,095
Issue date
Jul 5, 1988
Paul Wurth S.A.
Pierre Mailliet
C21 - METALLURGY OF IRON
Information
Patent Grant
Charging installation for a shaft furnace
Patent number
4,728,240
Issue date
Mar 1, 1988
Paul Wurth S.A.
Rene Mahr
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for controlling the charging of a shaft furnace
Patent number
4,714,396
Issue date
Dec 22, 1987
Gilbert Bernard
C21 - METALLURGY OF IRON
Information
Patent Grant
Particulate solids flow control valve
Patent number
4,674,534
Issue date
Jun 23, 1987
Hylsa, S.A.
J. Federico Price-Falcon
C21 - METALLURGY OF IRON
Information
Patent Grant
Apparatus for actuating a proportioning valve
Patent number
4,570,900
Issue date
Feb 18, 1986
Paul Wurth S.A.
Emile Lonardi
C21 - METALLURGY OF IRON
Information
Patent Grant
Installation for feeding a shaft furnace
Patent number
4,512,702
Issue date
Apr 23, 1985
Paul Wurth S.A.
Pierre Mailliet
C21 - METALLURGY OF IRON
Information
Patent Grant
Dust collector for furnace charging installation
Patent number
4,416,673
Issue date
Nov 22, 1983
Paul Wurth S.A.
Michel Kirchen
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR OPERATING A BLAST FURNACE PLANT
Publication number
20240077255
Publication date
Mar 7, 2024
PAUL WURTH S.A.
Paul TOCKERT
C21 - METALLURGY OF IRON
Information
Patent Application
SKIP HOIST OF A BLAST FURNACE
Publication number
20220325367
Publication date
Oct 13, 2022
Patrick HUTMACHER
C21 - METALLURGY OF IRON
Information
Patent Application
BLAST FURNACE APPARATUS AND OPERATION METHOD FOR BLAST FURNACE
Publication number
20210041172
Publication date
Feb 11, 2021
JFE STEEL CORPORATION
Yusuke KASHIHARA
G01 - MEASURING TESTING
Information
Patent Application
SEALING VALVE ARRANGEMENT FOR A SHAFT FURNACE CHARGING INSTALLATION
Publication number
20190277567
Publication date
Sep 12, 2019
PAUL WURTH S.A.
Charles STEICHEN
F27 - FURNACES KILNS OVENS RETORTS
Information
Patent Application
Sealing valve arrangement for a shaft furnace charging installation
Publication number
20120091378
Publication date
Apr 19, 2012
PAUL WURTH S.A.
Guy Thillen
C21 - METALLURGY OF IRON
Information
Patent Application
Device for the distribution of loose material into at least two hop...
Publication number
20050063803
Publication date
Mar 24, 2005
Franz-Josef Irnich
C21 - METALLURGY OF IRON
Information
Patent Application
Device for opening or closing an opening, in particular a bottom op...
Publication number
20040262324
Publication date
Dec 30, 2004
Frank Engl
C21 - METALLURGY OF IRON