Paper making and fiber liberation – Apparatus – Running or indefinite length product forming and/or treating...
Reexamination Certificate
2007-10-26
2010-10-12
Halpern, Mark (Department: 1791)
Paper making and fiber liberation
Apparatus
Running or indefinite length product forming and/or treating...
C162S203000, C162S361000, C162S358400
Reexamination Certificate
active
07811418
ABSTRACT:
A papermaking machine for making paper includes a forming section, a press section, and a drying section. The paper web is pressed between two press members while enclosed between a press felt and a transfer belt having non-uniformly distributed microscopic depressions in its surface, the web following the transfer belt from the press to a transfer point at which the web is transferred via a suction transfer device onto a structuring fabric, the web then being dried on a drying cylinder. The transfer point is spaced a distance D from the press nip selected based on machine speed, a basis weight of the web, and the surface characteristics of the transfer belt, such that within the distance D a thin water film between the web and the transfer belt at least partially dissipates to allow the web to be separated from the transfer belt.
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Beuther Paul Douglas
Hada Frank Stephen
Holz Jeffrey Dean
Ivarsson Hans
Klerelid Ingvar Berndt Erik
Alston & Bird LLP
Halpern Mark
Metso Paper Karlstad AB
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