The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2009
Filed:
Sep. 06, 2004
Jarmo Kirvesmäki, Jyväskylä, FI;
Ilkka Kemiläinen, Leppävesi, FI;
Hannu Turpeinen, Jyväskylä, FI;
Janne Lappi, Jyväskylä, FI;
Jarmo Kirvesmäki, Jyväskylä, FI;
Ilkka Kemiläinen, Leppävesi, FI;
Hannu Turpeinen, Jyväskylä, FI;
Janne Lappi, Jyväskylä, FI;
Metso Paper, Inc., Helsinki, FI;
Abstract
A headbox apparatus of a paper machine or equivalent has a body (). Dilution water (arrow L) is conducted through at least two rows of ducts (aa. . . ) into each body mixing chambers (aa. . . ). Each mixing chamber (aa. . . ) is limited by vertical walls (T), a bottom wall (T) and a covering wall (T), and a partition wall (aa. . . ). The ducts (aa. . . ) on the inlet side of the mixing chamber extend into the mixing chamber (aa. . . ) at a distance (h) from the ducts (aaa. . . ) on the outlet side of the mixing chamber (aa. . . ), whereby an annular gap (D) is left between the aligned duct (aaaa. . . ) on the inlet side and the duct (aaaa. . . ) on the outlet side. Each mixing chamber (aa. . . ) is filled by dilution water which is conducted through the annular gap (D) to join the stock (m).