Roll or roller – With specific roller exterior surface structure – Surface projections – indentations – or slits
Reexamination Certificate
2008-01-29
2008-01-29
Omgba, Essama (Department: 3726)
Roll or roller
With specific roller exterior surface structure
Surface projections, indentations, or slits
C492S045000, C492S047000, C492S060000
Reexamination Certificate
active
07322917
ABSTRACT:
The rotating cylinder for processing a web material comprises an essentially rigid cylindrical core (13), on which is fitted an interchangeable sleeve (45) of elastically expandable material whose rigidity is less than that of the material of the core; the sleeve is axially and angularly fixable to the core and is provided on its outer surface with a relief pattern. For each end of the 3 cylinder, there is provided at least one corresponding mechanical locking member which can be fixed to the corresponding end of the core of the cylinder and which interacts with the corresponding end of the interchangeable sleeve to lock the interchangeable sleeve angularly with respect to the core of the cylinder.
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Betti Giulio
Di Nardo Walter
Lorenzi Fabrizio
Breiner & Breiner, LLC
Fabio Perini S.p.A.
Omgba Essama
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