Appeal 2006-2016
Application 10/347,345
INTRODUCTION
Appellant invented a process and apparatus for slushing contaminated
recovered paper by feeding contaminated recovered paper (S) into a
horizontal drum (1) on its first face (5) and moving the contaminated
recovered paper from the first face (5) to a second face (5’) of the horizontal
drum and discharging the contents of the drum from the second face (5’)
using a “rotating coil” (4) (Specification ¶¶ [0002], [0006], Figure 1). The
horizontal drum has a displacement body (2) extending through the drum (1)
so that a processing channel (3) is formed. (Specification ¶ [0002], Figures 1
and 2). The contaminated recovered paper (S) is mechanically processed in
the processing channel (3) and expelled as pulp (S’) from the second face
(5’) of the horizontal drum (1) (Specification ¶¶ [0002], [0004], Figures 1
and 2). Appellant states that problems can occur with the discharge of the
pulp from the horizontal drum (Specification ¶ [0004]). To address these
problems, Appellant uses a “rotating coil” (4) to transport the pulp (S’)
produced from the contaminated recovered paper (S) treated in the drum (1)
out at the second face (5’) together with the contained impurities
(Specification ¶¶ [0006], [0039], [0040], Figure 1). Claims 1, 22, and 43
are illustrative:
1. A process for slushing contaminated recovered paper in a slushing
device that includes a rotatable drum having a first and second face on
opposite axial ends and at least one displacement body having an outside
wall curved at least in sections located inside the drum and held from outside
of the drum, such that a processing channel is formed between at least the
curved section of the outside wall of the displacement body and at least a
part of an inside wall of the drum in order to mechanically process the
recovered paper, said process comprising:
feeding recovered paper contaminated with impurities into the drum
on the first face;
2
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Last modified: September 9, 2013