Paper making and fiber liberation – Apparatus – With heat exchange means
Reexamination Certificate
2006-06-13
2006-06-13
Halpern, Mark (Department: 1731)
Paper making and fiber liberation
Apparatus
With heat exchange means
C034S114000, C034S115000, C034S116000, C034S122000, C034S273000, C034S269000
Reexamination Certificate
active
07060163
ABSTRACT:
The invention relates to a device for continuous drying of a pulp sheet10,particularly a tissue web, with a drying drum1and an air circulating system. It is mainly characterised by the drying drum1having a shell12with a perforated cylinder20that is externally supported by radial bearing rings21.
REFERENCES:
patent: 3781957 (1974-01-01), Luthi
patent: 4184268 (1980-01-01), Christin et al.
patent: 4781795 (1988-11-01), Miller
patent: 4990751 (1991-02-01), Nous
patent: 5575080 (1996-11-01), Fleissner
Haider Franz
Mausser Wilhelm
Schadler Gerald
Alix Yale & Ristas, LLP
Andritz AG
Halpern Mark
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