D21F1/00 - CPC Classification Index

ClassID:

126504 ⎘

D21F1/00 - CPC Classification

Classification description:

Wet end of machines for making continuous webs of paper

Sub-classes:

D21F1/0009 » {Regulating the freeness of the pulp} 3
D21F1/0018 » {Devices for dispensing fibres in a fluid} 14
D21F1/0027 » {Screen-cloths} 213
D21F1/009 » {Fibre-rearranging devices} 39
D21F1/02 » Head boxes of Fourdrinier machines 72
D21F1/04 » Head boxes of cylinder machines 1
D21F1/06 » Regulating pulp flow 17
D21F1/08 » Regulating consistency 25
D21F1/10 » Wire-cloths 29
D21F1/18 » Shaking apparatus for wire-cloths and associated parts 5
D21F1/24 » Tilting, raising, or lowering mechanisms for wire-cloths 3
D21F1/30 » Protecting wire-cloths from mechanical damage 21
D21F1/32 » Washing wire-cloths or felts 66
D21F1/34 » Construction or arrangement of spraying pipes 15
D21F1/36 » Guiding mechanisms 9
D21F1/44 » Watermarking devices 35
D21F1/48 » Suction apparatus 24
D21F1/54 » Skimming devices, e.g. froth ledges 0
D21F1/56 » Deckle frame arrangements 19
D21F1/58 » Deckle straps 1
D21F1/60 » Cylinder moulds 3
D21F1/62 » Sand traps 1
D21F1/64 » Magnetic separators 0
D21F1/66 » Pulp catching, de-watering, or recovering; Re-use of pulp-water 74

Recent Application in this class:

20230151552

2023-05-18

MULTILAYER FILM COMPRISING HIGHLY REFINED CELLULOSE FIBERS

20210277600

2021-09-09

Sheet manufacturing apparatus

20190168414

2019-06-06

Felt for forming fiber cement articles and related methods

20180001321

2018-01-04

REACTOR AND PROCESS FOR PRODUCING NANOFIBERS AND METHOD OF USING NANOFIBERS IN WEB-FORMING TECHNIQUES

20160312408

2016-10-27

Arrangement for and a method of manufacturing a fibrous web

20160097158

2016-04-07

Integrated method and system for recycling waste material

20160002855

2016-01-07

Arrangement for and a method of manufacturing a fibrous web

20140262098

2014-09-18

MONOFILAMENT YARN FOR A PAPER MACHINE CLOTHING FABRIC

20140060765

2014-03-06

Headbox apparatus

#10

20130292079

2013-11-07

Method for crystallizing a filler in connection with a fiber web process, and an approach system for a fiber web machine

#11

20130199746

2013-08-08

Apparatus for mixing a substance into a medium

#12

20130112361

2013-05-09

Wire for papermaking of microfibrous cellulose-containing sheet and method for producing microfibrous cellulose-containing sheet

#13

20110011548

2011-01-20

Method of and an arrangement for proportioning thick stock to a short circulation of fiber web machine

#14

20110000633

2011-01-06

Method for crystallizing a filler in connection with a fiber web process, and an approach system for a fiber web machine

#15

20100227332

2010-09-09

Method for selecting antimicrobial agent and utilization thereof

#16

20100139882

2010-06-10

Installation module for a paper or board machine

#17

20090321031

2009-12-31

Method and device in a dryer section of a fibre-web machine, such as a paper or board machine

#18

20090272508

2009-11-05

Method and apparatus for treatment of paper stock

#19

20090139676

2009-06-04

ASA emulsification with ultrasound

#20

20090114359

2009-05-07

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

#21

20080196854

2008-08-21

Sieve Mechanism For the Production of Paper, and Method For the Treatment of Non-Woven Fibers

#22

20070117140

2007-05-24

Method for selecting antimicrobial agent and utilization thereof

#23

20060102308

2006-05-18

Apparatus and method in the treatment of the stock passed to a headbox of a paper machine or equivalent

#24

20060096730

2006-05-11

Equipment and method in a paper or board machine for mixing of fresh stock and of water for dilution of fresh stock