D21F1/70 - CPC Classification Index

ClassID:

126564 ⎘

D21F1/70 - CPC Classification

Classification description:

Wet end of machines for making continuous webs of paper; Pulp catching, de-watering, or recovering; Re-use of pulp-water by flotation

Recent Application in this class:

20220325473

2022-10-13

Method for suppressing sedimentation of suspended substance, method for suppressing pitch trouble, and method for detecting sedimentation of suspended substance

20130206877

2013-08-15

Method and arrangement

20130105366

2013-05-02

Method for removing solid matter from a fibrous material suspension by means of flotation

20100300953

2010-12-02

Perfected Flotation Cell for Purifying Fibrous Suspensions

20080296206

2008-12-04

Process and device for aerating suspensions

20060254732

2006-11-16

System and method for removing foreign particles from an aqueous fibrous suspension

20060144796

2006-07-06

Process and device for aerating suspensions

20060124256

2006-06-15

Method of removing high density stickies from secondary papermaking fibers

20060021916

2006-02-02

Method for the flotation of contaminants from an aqueous fibrous suspension

#10

20060016731

2006-01-26

Reactor particularly suitable for cleaning fibrous suspensions dispersed in liquids

#11

20050051465

2005-03-10

Method for froth flotation