ClassID:

126553

D21F1/52 - CPC Classification

Classification description:

Wet end of machines for making continuous webs of paper; Suction apparatus Suction boxes without rolls

Sub-classes:
Recent Application in this class:
#1
20240052568
2024-02-15

SHEET MANUFACTURING APPARATUS

#2
20210156089
2021-05-27

Method and apparatus for producing a fiber web

#3
20200040528
2020-02-06

Method and apparatus for producing a fibre web

#4
20190276984
2019-09-12

SYSTEMS AND METHODS FOR VARIABLE SHOWER WATER JET IMPINGEMENT FOR FABRIC CONDITIONING

#5
20190078260
2019-03-14

SUCTION DEVICE FOR USE IN A PAPERMAKING MACHINE AND A PAPERMAKING MACHINE USING A SUCTION DEVICE

#6
20190024311
2019-01-24

Fibrous web dewatering apparatus and method

#7
20180298555
2018-10-18

Suction device for use in a papermaking machine and a papermaking machine using a suction device

#8
20180119355
2018-05-03

Method and device for monitoring a wear structure, in particular a sealing structure

#9
20180009008
2018-01-11

Apparatus for cleaning a felt in a system for producing a paper web

#10
20160145802
2016-05-26

Sheet manufacturing apparatus

#11
20140231038
2014-08-21

Method and apparatus for reducing the water and energy consumption of a paper machine with the help of a vacuum system and optimization of solids content as well as use of the same

#12
20130042988
2013-02-21

Vacuum equipment for a fiber web machine and a fiber web machine provided with vacuum equipment

#13
20120145346
2012-06-14

Method for optimizing the energy balance in forming sections in machines for the production of fibrous webs, and forming section using control elements associated with dewatering units

#14
20110024069
2011-02-03

Method for optimizing the energy balance in forming sections in machines for the production of fibrous webs, and forming section

#15
20090258149
2009-10-15

Forming section

#16
20080159817
2008-07-03

Suction tube for nonwoven mat machine and method

#17
20080115902
2008-05-22

Forming of a Paper or Board Web in a Twin-Wire Former or in a Twin-Wire Section of a Former

#18
20070163736
2007-07-19

Multi-layer web formation section

#19
20060162890
2006-07-27

Forming of a paper or board web in a twin-wire former or in a twin-wire section of a former

#20
14029829
2014-08-12

Water reduction by modulating vacuum