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Means for injecting material into flow within the headbox
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D21F1/022
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D
TEXTILES PAPER
D21
Papermaking
D21F
PAPER-MAKING MACHINES METHODS OF PRODUCING PAPER THEREON
D21F1/00
Wet end of machines for making continuous webs of paper
Current Industry
D21F1/022
Means for injecting material into flow within the headbox
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Patents Grants
last 30 patents
Information
Patent Grant
Method and apparatus for producing a zoned and/or layered substrate
Patent number
11,866,884
Issue date
Jan 9, 2024
Jian Qin
D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEX...
Information
Patent Grant
Method of and an arrangement for adding at least one additional sto...
Patent number
11,459,700
Issue date
Oct 4, 2022
Wetend Technologies Oy
Antti Ketolainen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Use of a polymer product for deposit formation control in manufactu...
Patent number
11,441,273
Issue date
Sep 13, 2022
Kemira Oyj
Matti Hietaniemi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Multilayer facer manufacturing system
Patent number
10,618,248
Issue date
Apr 14, 2020
Johns Manville
Souvik Nandi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Headbox for a machine for producing a fibrous web
Patent number
8,303,774
Issue date
Nov 6, 2012
Voith Patent GmbH
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Headbox for a machine for producing a fibrous web
Patent number
8,236,138
Issue date
Aug 7, 2012
Voith Patent GmbH
Marco Thomisch
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Headbox for a machine for producing a fibrous web
Patent number
8,236,137
Issue date
Aug 7, 2012
Voith Patent GmbH
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Headbox for a machine for producing a fibrous web
Patent number
8,221,590
Issue date
Jul 17, 2012
Voith Patent GmbH
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Deflection compensation roll
Patent number
8,075,736
Issue date
Dec 13, 2011
Voith Patent GmbH
Takeo Nakazawa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus for controlling medium flow
Patent number
7,661,651
Issue date
Feb 16, 2010
Vaathto Oy
Harri Kronholm
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Headbox and stock delivery system for a papermaking machine
Patent number
7,578,906
Issue date
Aug 25, 2009
AstenJohnson, Inc.
Jay A. Shands
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of and apparatus for distribution of paper stock in paper or...
Patent number
7,001,488
Issue date
Feb 21, 2006
Sandusky Technologies Limited
Harry Bowler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Headbox for the metered addition of a fluid medium into a suspensio...
Patent number
6,890,408
Issue date
May 10, 2005
Voith Sulzer Papiertechnik Patent GmbH
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and device for feeding chemicals into a fibre suspension
Patent number
6,841,040
Issue date
Jan 11, 2005
Metso Paper, Inc.
Hannu Lepomäki
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process and device to control quality parameters in paper, tissue a...
Patent number
6,821,390
Issue date
Nov 23, 2004
Andritz AG
Gerald Schadler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for mixing dilution liquid into a stock flow in a paper or b...
Patent number
6,808,601
Issue date
Oct 26, 2004
Metso Paper, Inc.
Juhana Lumiala
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Multi-layer headbox for a paper/board machine
Patent number
6,544,387
Issue date
Apr 8, 2003
Jyrki Huovila
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Headbox and process for the metered addition of a fluid medium into...
Patent number
6,464,837
Issue date
Oct 15, 2002
Voith Sulzer Papiertechnik Patent GmbH
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Headbox for a paper or board making machine
Patent number
6,368,462
Issue date
Apr 9, 2002
Valmet Corporation
Juhana Lumiala
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for improving the shrinkage cross direction profile and pap...
Patent number
6,303,001
Issue date
Oct 16, 2001
Voith Sulzer Papiertechnik Patent GmbH
Udo Grossmann
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for improving the edge strength of a fibrous mat
Patent number
6,294,051
Issue date
Sep 25, 2001
Kimberly-Clark Worldwide, Inc.
Richard Martin Urquhart
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Stock feed system for a multi-layer headbox and method in the opera...
Patent number
6,210,535
Issue date
Apr 3, 2001
Valmet Corporation
Jyrki Huovila
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process and device for controlling the consistency and fiber orient...
Patent number
6,136,152
Issue date
Oct 24, 2000
Voith Sulzer Papiermaschinen GmbH
Ulrich Begemann
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Device and process for metering auxiliary materials into the flow b...
Patent number
6,117,272
Issue date
Sep 12, 2000
Voith Sulzer Papiermaschinen
Helmut Heinzmann
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dilution control device for a wet end of a paper-making machine
Patent number
6,083,351
Issue date
Jul 4, 2000
Voith Sulzer Paper Technology North America, Inc.
Edwin X. Graf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Arrangement for feeding stock to a headbox in a papermaking machine
Patent number
6,030,500
Issue date
Feb 29, 2000
Valmet-Karlstad AB
N. Ulf A. Haraldsson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Continuously variable sectioned headbox
Patent number
5,985,098
Issue date
Nov 16, 1999
Voith Sulzer Papiermaschinen GmbH
Klaus Lehleiter
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Dosing feeder for the breast box of papermaking machine
Patent number
5,900,121
Issue date
May 4, 1999
Voith Sulzer Papiermaschinen GmbH
Klaus Lehleiter
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Arrangement for feeding stock to a headbox in a papermaking machine
Patent number
5,853,545
Issue date
Dec 29, 1998
Valmet-Karlstad AB
N. Ulf A. Haraldsson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Headbox of a paper machine with edge feed arrangements
Patent number
5,843,281
Issue date
Dec 1, 1998
Valmet Corporation
Jyrki Huovila
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
PAPERMAKING MACHINE THAT UTILIZES ONLY A STRUCTURED FABRIC IN THE F...
Publication number
20240368838
Publication date
Nov 7, 2024
STRUCTURED I, LLC
James E. Sealey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD AND APPARATUS FOR PRODUCING A ZONED SUBSTRATE
Publication number
20240125048
Publication date
Apr 18, 2024
Kimberly-Clark Worldwide, Inc.
Jian Qin
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Use of a polymer product for deposit formation control in manufactu...
Publication number
20210301473
Publication date
Sep 30, 2021
KEMIRA OYJ
Matti Hietaniemi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
EQUIPMENT FOR MANUFACTURING FIBER STRUCTURE, METHOD FOR MANUFACTURI...
Publication number
20210230802
Publication date
Jul 29, 2021
SEIKO EPSON CORPORATION
Toshiaki YAMAGAMI
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD OF AND AN ARRANGEMENT FOR ADDING AT LEAST ONE ADDITIONAL STO...
Publication number
20210189650
Publication date
Jun 24, 2021
WETEND TECHNOLOGIES OY
Antti KETOLAINEN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DECKLE BOARD SYSTEM SUPPORT ASSEMBLY, CONTROL ASSEMBLY, AND/OR ACTU...
Publication number
20180087217
Publication date
Mar 29, 2018
IBS of AMERICA
Andrew Forester
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
DISTRIBUTION CHANNELING IN CONNECTION WITH THE HEADBOX OF A PAPER M...
Publication number
20120273150
Publication date
Nov 1, 2012
VAAHTO PAPER TECHNOLOGY OY
Erkka NIEMINEN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
FEEDER CHANNEL FOR DILUTING FLUID
Publication number
20120247704
Publication date
Oct 4, 2012
VAAHTO OY
Erkka NIEMINEN
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB
Publication number
20120168105
Publication date
Jul 5, 2012
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB
Publication number
20110303381
Publication date
Dec 15, 2011
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB
Publication number
20110290440
Publication date
Dec 1, 2011
Marco Thomisch
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB
Publication number
20110290441
Publication date
Dec 1, 2011
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB
Publication number
20110265968
Publication date
Nov 3, 2011
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
APPLICATION OF RETENTION, DRAINAGE, AND FORMATION (RDF) CHEMICAL AI...
Publication number
20100122786
Publication date
May 20, 2010
Tommy Jacobson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Headbox for Paper Machine
Publication number
20080023167
Publication date
Jan 31, 2008
VOITH PATENT GmbH
Takeo Nakazawa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
HEADBOX AND STOCK DELIVERY SYSTEM FOR A PAPERMAKING MACHINE
Publication number
20070267164
Publication date
Nov 22, 2007
AstenJohnson, Inc.
Jay A. Shands
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Apparatus for controlling medium flow
Publication number
20050242313
Publication date
Nov 3, 2005
VAAHTO OY
Harri Kronholm
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method of and apparatus for distribution of paper stock in paper or...
Publication number
20040055722
Publication date
Mar 25, 2004
Harry Bowler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Method and device for feeding chemicals into a fibre suspension
Publication number
20030106661
Publication date
Jun 12, 2003
Hannu Lepomaki
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Headbox for the metered addition of a fluid medium into a suspensio...
Publication number
20030000674
Publication date
Jan 2, 2003
VOITH SULZER PAPIERTECHNIK PATENT GmbH
Wolfgang Ruf
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Process and device to control quality parameters in paper, tissue a...
Publication number
20020148587
Publication date
Oct 17, 2002
Gerald Schadler
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
MULTI-LAYER HEADBOX FOR A PAPER/BOARD MACHINE
Publication number
20010037867
Publication date
Nov 8, 2001
JYRKI HUOVILA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE