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Class Information
Number: 8/156
Name: Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers > Fluid treatment (manipulative) > Special forms and forming > Pulp or fibers (in bulk)
Description: Processes for the treatment of pulp or fibers in bulk form.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7077931 |
Method and bleaching line with a main conduit for wash liquor |
Jul. 18, 2006 |
| 6868973 |
Drum type refining or washing apparatus |
Mar. 22, 2005 |
| 6789285 |
Pulp washing method and plant |
Sep. 14, 2004 |
| 6752156 |
Humidification cylinder and method of humidifying material |
Jun. 22, 2004 |
| 6706876 |
Cellulosic pulp having low degree of polymerization values |
Mar. 16, 2004 |
| 6553593 |
Plate diffuser for treating comminuted cellulosic fibrous material |
Apr. 29, 2003 |
| 6521094 |
Device for the treatment of a fibrous suspension |
Feb. 18, 2003 |
| 6500211 |
Mutant EGIII cellulase, DNA encoding such EGIII compositions and methods for obtaining same |
Dec. 31, 2002 |
| 6461473 |
Supply of washing liquid in a fractionating multi-stage washer |
Oct. 8, 2002 |
| 6440272 |
Device for mixing stock suspensions |
Aug. 27, 2002 |
| 6440265 |
FRP hood for paper processing plant |
Aug. 27, 2002 |
| 6339859 |
Control system for a filtrate splitting device |
Jan. 22, 2002 |
| 6302996 |
Method and apparatus for washing fiber pulp mixture |
Oct. 16, 2001 |
| 6272710 |
Plate diffuser for treating comminuted cellulosic fibrous material |
Aug. 14, 2001 |
| 6200417 |
Process and device for mixing stock suspensions |
Mar. 13, 2001 |
| 6017416 |
FRP hood for paper processing plant |
Jan. 25, 2000 |
| 5960500 |
Stock washer for washing, thickening and classifying solids |
Oct. 5, 1999 |
| 5954841 |
Wool scouring |
Sep. 21, 1999 |
| 5842242 |
Method for increasing the consistency of pulp using a single roll displacment wash press |
Dec. 1, 1998 |
| 5839142 |
Stock washer for washing, thickening and classifying solids |
Nov. 24, 1998 |
| 5837009 |
Method for the production of quality cotton yarns involving a low-cost process, free of environmental pollution |
Nov. 17, 1998 |
| 5771718 |
Concentrated washing machine |
Jun. 30, 1998 |
| 5741399 |
Pulp washing method |
Apr. 21, 1998 |
| 5699573 |
Method and pulp washing machine for washing of pulp or any corresponding material |
Dec. 23, 1997 |
| 5688759 |
Nitrogen-free anionic conditioning formulations |
Nov. 18, 1997 |
| 5688369 |
Method and device for feeding out fibre pulp |
Nov. 18, 1997 |
| 5556508 |
Method for treating pulp |
Sep. 17, 1996 |
| 5509161 |
Impregnation procedure for a textile sheet |
Apr. 23, 1996 |
| 5444884 |
Controlling screen backflush and wash distribution in a pressure diffuser |
Aug. 29, 1995 |
| 5238501 |
Method for treatment of a fibrous material-fluid mixture |
Aug. 24, 1993 |
| 5221434 |
Method for treating fiber suspensions |
Jun. 22, 1993 |
| 5203045 |
Nozzle mounting in atmospheric diffusers |
Apr. 20, 1993 |
| 5183536 |
Atmospheric diffuser improved lower screens backflushing |
Feb. 2, 1993 |
| 5129119 |
Diffuser efficiency |
Jul. 14, 1992 |
| 5116423 |
Apparatus for washing pulp |
May. 26, 1992 |
| 5114536 |
Method for cleaning fibers |
May. 19, 1992 |
| 5112444 |
Method for treating pulp |
May. 12, 1992 |
| 5027620 |
Diffuser with flexible bellows and internal actuator |
Jul. 2, 1991 |
| 5020178 |
Stabilizing pressure and flow conditions in a screening apparatus |
Jun. 4, 1991 |
| 4986881 |
Method and apparatus for liquid treatment of and liquid extraction on a paper pulp |
Jan. 22, 1991 |
| 4976822 |
Apparatus for cleaning fibers |
Dec. 11, 1990 |
| 4919158 |
Method and apparatus for washing pulp |
Apr. 24, 1990 |
| 4908896 |
Backflushing pressure diffuser screens |
Mar. 20, 1990 |
| 4890550 |
Apparatus for treating fibre material containing liquid |
Jan. 2, 1990 |
| 4881286 |
Effective diffuser/thickener screen backflushing |
Nov. 21, 1989 |
| 4840704 |
Controlling characteristics of a pulp mat on a pulp washing surface |
Jun. 20, 1989 |
| 4840047 |
Multiscreen pressure diffuser |
Jun. 20, 1989 |
| 4808265 |
Method of washing pulp in a pressure pulp washer adding two washing liquids |
Feb. 28, 1989 |
| 4793161 |
Effective diffuser/thickener screen backflushing |
Dec. 27, 1988 |
| 4788790 |
Method of making a dark, uniformly-colored, hardwood mulch |
Dec. 6, 1988 |
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