ClassID:

126515

D21F1/02 - CPC Classification

Classification description:

Wet end of machines for making continuous webs of paper Head boxes of Fourdrinier machines

Sub-classes:
Recent Application in this class:
#1
20250263889
2025-08-21

Headbox for Manufacturing a Substrate

#2
20240279856
2024-08-22

APPARATUS FOR FORMING A SUBSTRATE

#3
20240225911
2024-07-11

HEADBOX FOR MANUFACTURING A SUBSTRATE

#4
20240044059
2024-02-08

DEVICE FOR PRODUCING A COMPOSITE NONWOVEN WEB

#5
20230313464
2023-10-05

METHOD FOR MANUFACTURING A FILM COMPRISING HIGHLY REFINED CELLULOSE FIBERS

#6
20230250586
2023-08-10

Absorbent Product with Improved Capillary Pressure and Saturation Capacity

#7
20230250582
2023-08-10

Paper products having increased bending stiffness and cross-direction strength and methods for making the same

#8
20230235508
2023-07-27

FLOW-OPTIMIZED EDGE TREATMENT

#9
20230212819
2023-07-06

Crescent former for producing tissue paper

#10
20230212800
2023-07-06

Apparatus for forming a substrate

#11
20230201044
2023-06-29

Headbox for manufacturing a substrate

#12
20230160144
2023-05-25

Controlling the slice flow of a slurry through a headbox

#13
20230030264
2023-02-02

Device and method for producing a fibrous web

#14
20230019391
2023-01-19

Light weight linerboard for corrugated board

#15
20220403596
2022-12-22

Elongated component for a manufacturing machine of a fibrous cellulosic web, its use and method for recycling

#16
20220213649
2022-07-07

EFFICIENT PRODUCTION OF A CONTAINERBOARD TO BE USED AS FLUTING

#17
20220098794
2022-03-31

Paper producing apparatus

#18
20210277602
2021-09-09

Sheet manufacturing apparatus and control method for sheet manufacturing apparatus

#19
20200407913
2020-12-31

Method of and an arrangement for adding a chemical to an approach flow system of a fiber web machine

#20
20200232163
2020-07-23

Wet part of fourdrinier

#21
20200080264
2020-03-12

Method for increasing the strength properties of a paper or board product

#22
20190360155
2019-11-28

Method for producing a fibrous material web

#23
20190211503
2019-07-11

Paper products having increased bending stiffness and cross-direction strength and methods for making the same

#24
20180361702
2018-12-20

Multilayer facer manufacturing system

#25
20180030653
2018-02-01

Papermaking fabric

#26
20160305070
2016-10-20

Device for simultaneously measuring headbox slice opening and setback in a papermaking machine

#27
20160145801
2016-05-26

Sheet manufacturing apparatus

#28
20130299113
2013-11-14

HEADBOX FOR THE PRODUCTION OF PAPER OR PAPERBOARD

#29
20120279672
2012-11-08

USED PAPER RECYCLING APPARATUS AND ITS CONSTITUENT DEVICES

#30
20120279671
2012-11-08

Used paper recycling apparatus and its constituent devices

#31
20120273150
2012-11-01

DISTRIBUTION CHANNELING IN CONNECTION WITH THE HEADBOX OF A PAPER MACHINE

#32
20120247704
2012-10-04

FEEDER CHANNEL FOR DILUTING FLUID

#33
20120193059
2012-08-02

Method for operating a sheet-forming unit, and sheet forming unit

#34
20120186767
2012-07-26

HEADBOX, SHEET FORMING UNIT WITH A HEADBOX AND METHOD FOR OPERATING A SHEET FORMING UNIT

#35
20120168105
2012-07-05

HEADBOX FOR A MACHINE FOR PRODUCING A FIBROUS WEB

#36
20120138251
2012-06-07

HEADBOX FOR A MACHINE TO PRODUCE A FIBER WEB

#37
20120103544
2012-05-03

METHOD FOR PRODUCING A WEB OF TISSUE

#38
20110303382
2011-12-15

Sheet forming system for a machine for producing a multilayer fibrous web

#39
20110303381
2011-12-15

Headbox for a machine for producing a fibrous web

#40
20110297342
2011-12-08

Process for the production of paper or paperboard

#41
20110290444
2011-12-01

Screening in an approach flow system

#42
20110290441
2011-12-01

Headbox for a machine for producing a fibrous web

#43
20110290440
2011-12-01

Headbox for a machine for producing a fibrous web

#44
20110265968
2011-11-03

Headbox for a machine for producing a fibrous web

#45
20110259540
2011-10-27

DOUBLE-LAYER HEADBOX FOR A MACHINE FOR PRODUCING A DOUBLE-LAYER FIBROUS WEB

#46
20100206508
2010-08-19

DISTRIBUTION UNIT IN AN INLET BOX FOR A DEWATERING PRESS

#47
20100108281
2010-05-06

Tube bank apparatus for distributing stock

#48
20100065239
2010-03-18

Headbox slice beam removal system and device

#49
20100043995
2010-02-25

SEALING ELEMENTS IN A TWIN-WIRE PAPER MACHINE

#50
20090218064
2009-09-03

Tube bank apparatus for distributing stock

#51
20090139673
2009-06-04

Sheet formation process and wet end to produce a pulp web

#52
20090114359
2009-05-07

Method for use in the wet end of a paper machine, cardboard machine or an equivalent web forming machine

#53
20090020251
2009-01-22

Machine for forming a fibrous web

#54
20080314538
2008-12-25

Paper Machine With One or a Plurality of Valve Devices

#55
20080216982
2008-09-11

Headbox apparatus for a papermaking machine

#56
20080179032
2008-07-31

Headbox apparatus for a papermaking machine

#57
20080135198
2008-06-12

Apparatus For Controlling the Consistency of a Flow of Stock Solution

#58
20080110588
2008-05-15

Method for managing lamella vibrations of a lip channel of a head box and the lamella for the lip channel of the headbox

#59
20080099173
2008-05-01

Flow sheet for paper machine and method of manufacturing the same

#60
20080093042
2008-04-24

Multiple mode headbox

#61
20080023167
2008-01-31

Deflection compensation roll

#62
20070267164
2007-11-22

Headbox and stock delivery system for a papermaking machine

#63
20070181277
2007-08-09

Headbox apparatus for a papermaking machine

#64
20070163739
2007-07-19

Method and apparatus for transverse distribution of a flowing medium

#65
20070062663
2007-03-22

Used paper recycling apparatus and its constituent devices

#66
20070056708
2007-03-15

Apparatus in connection with a headbox of a paper machine or equivalent

#67
20060243404
2006-11-02

Device for producing a web of tissue

#68
20060157215
2006-07-20

Arrangement in a headbox

#69
20060048910
2006-03-09

Device and method for on-line control of the fibre direction of a fibre web

#70
20050092453
2005-05-05

Method of ensuring flatness of a vane in a headbox by means of a mounting arrangement, headbox with such a mounting arrangement, a mounting arrangement and vane therefor

#71
20050061465
2005-03-24

Headbox for a paper machine

#72
20050051289
2005-03-10

Former and headbox for said former

#73
20050034827
2005-02-17

Method of forming a fibrous web