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D21D5/04
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D
TEXTILES PAPER
D21
Papermaking
D21D
TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
D21D5/00
Purification of the pulp suspension by mechanical means Apparatus therefor
Current Industry
D21D5/04
Flat screens
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Patents Grants
last 30 patents
Information
Patent Grant
Process for producing a nanocelullosic material comprising at least...
Patent number
12,123,143
Issue date
Oct 22, 2024
SUZANO S.A.
Marcos Henrique Luciano Silveira
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Pulper for circulating a fibrous stock suspension
Patent number
12,012,694
Issue date
Jun 18, 2024
Voith Patent GmbH
Oliver Lüdtke
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Filter segment with a light weight frame
Patent number
11,478,731
Issue date
Oct 25, 2022
VALMET TECHNOLOGIES OY
Karl Gabrielsson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Separation device
Patent number
11,203,043
Issue date
Dec 21, 2021
KADANT LAMORT
Stephan Pottier
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Processing of recycled material
Patent number
10,494,763
Issue date
Dec 3, 2019
Red Wire Oy
Jouko Hautala
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of producing cellulose nanofibrils
Patent number
10,240,290
Issue date
Mar 26, 2019
GL&V USA, Inc.
Bruce Crossley
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Screening apparatus
Patent number
9,636,688
Issue date
May 2, 2017
CDE Global Limited
Glenn Sloan
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Pulper
Patent number
8,991,733
Issue date
Mar 31, 2015
Voith Patent GmbH
Jürgen Fey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screening device for wet screening of paper fiber suspensions
Patent number
7,721,895
Issue date
May 25, 2010
Voith Paper Patent GmbH
Wolfgang Mueller
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process and container for stacking high-consistency stock
Patent number
6,986,829
Issue date
Jan 17, 2006
Voith Paper Patent GmbH
Volker Gehr
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screen apparatus for papermaking material
Patent number
6,149,015
Issue date
Nov 21, 2000
Aikawa Iron Works Co., Ltd.
Yoshihiko Aikawa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Fluidizing detrashing impeller
Patent number
6,010,012
Issue date
Jan 4, 2000
Beloit Technologies, Inc.
William A. Gero
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Adjustable control valve system for rotating disc filter and method...
Patent number
5,914,048
Issue date
Jun 22, 1999
Beloit Technologies, Inc.
Calvin Chase
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Flushing cleaner for multiple shower wand assemblies
Patent number
5,909,847
Issue date
Jun 8, 1999
Productive Solutions Inc.
Denis Munsche
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus called "TSS"-the turbo screening system, for filtering an...
Patent number
5,881,887
Issue date
Mar 16, 1999
Sigurd Fongen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Endless fabric for condensing paper material and method of making t...
Patent number
5,840,378
Issue date
Nov 24, 1998
Nippon Filcon Co., Ltd.
Hiroyuki Nagura
D03 - WEAVING
Information
Patent Grant
Method for screening pulp
Patent number
5,601,690
Issue date
Feb 11, 1997
Gauld Equipment Company
W. Thomas Gauld
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Method and apparatus for the sorting of fiber suspensions
Patent number
5,509,536
Issue date
Apr 23, 1996
Sulzer-Escher Wyss GmbH
Wolfgang Mannes
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and device for separating a suspension, preferably a fibre s...
Patent number
5,441,157
Issue date
Aug 15, 1995
Celleco Hedemora AB
Roland Fjallstrom
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Composite type screen
Patent number
5,435,444
Issue date
Jul 25, 1995
Satomi Seisakusho Co., Ltd.
Hitoshi Satomi
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Separator screen feeder
Patent number
5,431,287
Issue date
Jul 11, 1995
Sweco, Inc.
Pete D. Knox
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Device for separating a mixture of paper pulp and contaminants
Patent number
5,407,538
Issue date
Apr 18, 1995
E & M Lamort
Jean P. Lamort
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for treating fiber suspension
Patent number
5,192,454
Issue date
Mar 9, 1993
A. Ahlstrom Corporation
Pasi Immonen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of and device for fractionating suspensions
Patent number
5,124,029
Issue date
Jun 23, 1992
Celleco AB
Roland Fjallstrom
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for cleaning fibers
Patent number
5,114,536
Issue date
May 19, 1992
Martti Y. O. Kangas
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screening apparatus for paper making stock
Patent number
5,078,275
Issue date
Jan 7, 1992
The Black Clawson Company
David E. Chupka
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Apparatus for treating fiber suspension
Patent number
5,073,264
Issue date
Dec 17, 1991
A. Ahlstrom Corporation
Pasi H. Immonen
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for improving the operation of a disc filter
Patent number
4,995,991
Issue date
Feb 26, 1991
Ahlstrom Corporation
Risto Ljokkoi
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Apparatus for cleaning fibers
Patent number
4,976,822
Issue date
Dec 11, 1990
Martti Y. O. Kangas
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Screen segment for filters for thickening fiber suspensions
Patent number
4,950,403
Issue date
Aug 21, 1990
Siegfried Hauff
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
Screen Plate and Pulp Screening Machine
Publication number
20230060403
Publication date
Mar 2, 2023
ANDRITZ (China) Ltd.
Alexander Gscheider
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
PROCESS FOR PRODUCING A NANOCELULLOSIC MATERIAL COMPRISING AT LEAST...
Publication number
20210395949
Publication date
Dec 23, 2021
Suzano S.A.
Marcos Henrique Luciano SILVEIRA
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information
Patent Application
PULPER FOR CIRCULATING A FIBROUS STOCK SUSPENSION
Publication number
20210032811
Publication date
Feb 4, 2021
VOITH PATENT GmbH
Oliver Lüdtke
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SEPARATION DEVICE
Publication number
20200261944
Publication date
Aug 20, 2020
KADANT LAMORT
Stephan POTTIER
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
ROTOR UNIT FOR PROCESSING RECYCLED MATERIAL
Publication number
20190022663
Publication date
Jan 24, 2019
RED WIRE OY
Jouko HAUTALA
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Application
PROCESSING OF RECYCLED MATERIAL
Publication number
20190017223
Publication date
Jan 17, 2019
RED WIRE OY
Jouko HAUTALA
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD OF PRODUCING CELLULOSE NANOFIBRILS
Publication number
20180135246
Publication date
May 17, 2018
GL&V Luxembourg S.à.r.l.
Bruce Crossley
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SHEET MANUFACTURING APPARATUS AND METHOD FOR MANUFACTURING SHEET
Publication number
20150090416
Publication date
Apr 2, 2015
SEIKO EPSON CORPORATION
Masahide NAKAMURA
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Application
PRETREATMENT APPARATUS FOR REMOVING PITH FROM CORNSTALK, PULP MANUF...
Publication number
20130276998
Publication date
Oct 24, 2013
CPNP HOLDINGS CO., LTD.
Jong Bong Park
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Application
PULPER
Publication number
20130099035
Publication date
Apr 25, 2013
Jürgen Fey
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SCREENING APPARATUS FOR A CONTAMINATED FIBROUS SUSPENSION AND ITS USE
Publication number
20090223873
Publication date
Sep 10, 2009
Wolfgang Mueller
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
SCREENING DEVICE FOR WET SCREENING OF PAPER FIBER SUSPENSIONS
Publication number
20070084761
Publication date
Apr 19, 2007
VOITH PAPER PATENT GmbH
Wolfgang MUELLER
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Filter sector for use in rotary disc filters for separating pulp su...
Publication number
20060261001
Publication date
Nov 23, 2006
Conny Hagg
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Screen
Publication number
20050183993
Publication date
Aug 25, 2005
Helmuth Gabl
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
Process and container for stacking high-consistency stock
Publication number
20030089471
Publication date
May 15, 2003
VOITH PAPER PATENT GmbH
Volker Gehr
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE