Apparatus in connection with a headbox of a paper machine or...

Details Apparatus in connection with a headbox of a paper machine or... Apparatus in connection with a headbox of a paper machine or...

2004-09-06

2009-02-03

Halpern, Mark (Department: 1791)

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

C162S343000, C162S344000

Reexamination Certificate

active

07485206

ABSTRACT:
A headbox apparatus of a paper machine or equivalent has a body (11). Dilution water (arrow L2) is conducted through at least two rows of ducts (12a1, 12a2. . . ) into each body mixing chambers (13a1, 13a2. . . ). Each mixing chamber (13a1, 13a2. . . ) is limited by vertical walls (T1), a bottom wall (T2) and a covering wall (T3), and a partition wall (16a1, 16a2. . . ). The ducts (14a1.1, 14a1.2. . . ) on the inlet side of the mixing chamber extend into the mixing chamber (13a1, 13a2. . . ) at a distance (h1) from the ducts (15a1.1, 15a1.2. . . , 15a2.2. . . ) on the outlet side of the mixing chamber (13a1, 13a2. . . ), whereby an annular gap (D1) is left between the aligned duct (14a1.1, 14a1.2. . . 14a2.1, 14a2.2. . . ) on the inlet side and the duct (15a1.1, 15a1.2. . . , 15a2.1, 15a2.2. . . ) on the outlet side. Each mixing chamber (13a1, 13a2. . . ) is filled by dilution water which is conducted through the annular gap (D1) to join the stock (m1).

REFERENCES:
patent: 5674364 (1997-10-01), Pitkäjärvi
patent: 6475344 (2002-11-01), Aidun
patent: 6544387 (2003-04-01), Huovila et al.
patent: 6610175 (2003-08-01), Aidun
patent: 0 635 599 (1995-01-01), None
patent: 0 635 599 (1995-01-01), None
patent: 942780 (1995-12-01), None
patent: 101726 (1998-08-01), None
patent: 101726 (1998-08-01), None
patent: 20031286 (2003-09-01), None
patent: WO 98/23812 (1998-06-01), None
patent: WO 98/46823 (1998-10-01), None
patent: WO 2005/024127 (2005-03-01), None
patent: WO 2005/024127 (2005-03-01), None
International Search Report issued in PCT/FI2004/000517.
Written Opinion of the International Searching Authority in PCT/FI2004/000517.
Search Report issued in Finnish Application FI 20031286.
Search Report issued in Finnish Application No. 20031286.

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