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Class Information
Number: 162/216
Name: Paper making and fiber liberation > Processes and products > Running or indefinite length work forming and/or treating processes (e.g., web) > Directing slurry into association with mold > Mechanical treatment of slurry in head box or approach flow
Description: Processes in which the slurry is subjected to a mechanical treatment directly before application to the mold surface.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7318883 |
Equipment and method in a paper or board machine for mixing of fresh stock and of water for dilution of fresh stock |
Jan. 15, 2008 |
| 7166193 |
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 |
Jan. 23, 2007 |
| 7067040 |
Headbox of paper machine or such |
Jun. 27, 2006 |
| 6986832 |
Arrangement for mixing flows in papermaking process |
Jan. 17, 2006 |
| 6962647 |
Headbox for a paper machine, board machine, pulp machine or equivalent |
Nov. 8, 2005 |
| 6962646 |
Multi-layer headbox |
Nov. 8, 2005 |
| 6902650 |
Method of making a stratified paper |
Jun. 7, 2005 |
| 6890408 |
Headbox for the metered addition of a fluid medium into a suspension stream |
May. 10, 2005 |
| 6875312 |
Method for fluidisation of pulp flow in the headbox of a paper machine or such and control equipment used in the fluidisation |
Apr. 5, 2005 |
| 6746572 |
Method for determining a characteristic value for the binding force potential of suspended paper fibers and use of this method |
Jun. 8, 2004 |
| 6740198 |
Method and arrangement for mixing pulp components in the manufacture of paper |
May. 25, 2004 |
| 6679974 |
Procedure and means for generating turbulence in stock suspension flow |
Jan. 20, 2004 |
| 6605186 |
Headbox for gypsum/fiber board production |
Aug. 12, 2003 |
| 6544387 |
Multi-layer headbox for a paper/board machine |
Apr. 8, 2003 |
| 6494993 |
Multi-layer web formation by means of a simple basic-stock system |
Dec. 17, 2002 |
| 6475344 |
Method of mixing jets of paper fiber stock |
Nov. 5, 2002 |
| 6464837 |
Headbox and process for the metered addition of a fluid medium into a suspension stream of a headbox |
Oct. 15, 2002 |
| 6461479 |
Process and device for distributing a pulp suspension, particularly at medium consistency |
Oct. 8, 2002 |
| 6451167 |
Wetlay process for manufacture of highly-oriented fibrous mats |
Sep. 17, 2002 |
| 6413376 |
Headbox for gypsum/fiber board production |
Jul. 2, 2002 |
| 6406595 |
Methods and apparatus to enhance paper and board forming qualities |
Jun. 18, 2002 |
| 6372092 |
Headbox and process for supplying a material suspension |
Apr. 16, 2002 |
| 6368460 |
Method and apparatus to enhance paper and board forming qualities |
Apr. 9, 2002 |
| 6322666 |
Regulation system and method in a paper machine |
Nov. 27, 2001 |
| 6303004 |
Stock inlet |
Oct. 16, 2001 |
| 6299731 |
Process and headbox system for improving consistency cross-direction profile of fiber web |
Oct. 9, 2001 |
| 6294051 |
Method for improving the edge strength of a fibrous mat |
Sep. 25, 2001 |
| 6284100 |
Method and apparatus for controlling a headbox in a paper machine |
Sep. 4, 2001 |
| 6264796 |
Headbox diffuser |
Jul. 24, 2001 |
| 6214170 |
Process for cleaning or maintaining the cleanliness of the low-consistency branch of a headbox system |
Apr. 10, 2001 |
| 6203665 |
Process for setting a uniform characteristic cross-direction profile for a paper web |
Mar. 20, 2001 |
| 6200421 |
Apparatus and process for feeding stock to a papermachine |
Mar. 13, 2001 |
| 6179963 |
Process for influencing the breaking length cross-machine profile of a running fibrous material web |
Jan. 30, 2001 |
| 6146500 |
Suction breast roll former and method, with flexible headbox roof |
Nov. 14, 2000 |
| 6139687 |
Cross-machine direction stiffened dividers for a papermaking headbox |
Oct. 31, 2000 |
| 6117272 |
Device and process for metering auxiliary materials into the flow box of a paper machine |
Sep. 12, 2000 |
| 6083348 |
Method for producing paper |
Jul. 4, 2000 |
| 6077395 |
Head box of paper machine |
Jun. 20, 2000 |
| 6066235 |
Wetlay process for manufacture of highly-oriented fibrous mats |
May. 23, 2000 |
| 6059929 |
Three-layer headbox |
May. 9, 2000 |
| 5885420 |
Headbox for papermaking machine with more uniform flow |
Mar. 23, 1999 |
| 5876564 |
Methods and apparatus to enhance paper and board forming qualities |
Mar. 2, 1999 |
| 5863387 |
Ultrasonic device for deflocculating fiber suspension in a paper-making machine headbox nozzle |
Jan. 26, 1999 |
| 5843281 |
Headbox of a paper machine with edge feed arrangements |
Dec. 1, 1998 |
| 5814191 |
Arrangement and method for combining a dilution flow with a stock flow passed out of an inlet header in a paper/board machine |
Sep. 29, 1998 |
| 5800678 |
Method and device for regulating a flow of dilution liquid in connection with a headbox of a paper/board machine |
Sep. 1, 1998 |
| 5792319 |
Method and apparatus for controlling the profile of sheet material |
Aug. 11, 1998 |
| 5792321 |
Methods and apparatus to enhance paper and board forming qualities |
Aug. 11, 1998 |
| 5785815 |
Process for damping pressure pulsations and apparatus for performing the process |
Jul. 28, 1998 |
| 5746889 |
Stock feed system for a multi-layer headbox and method in the operation of a multi-layer headbox |
May. 5, 1998 |
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