Patent ID: 7901751

Claim:
An interchangeable sleeve for a roller for processing a web material comprising: a jacket having a substantially cylindrical outer surface; a layer of hardened resin inside said jacket; a substantially conical inner surface, for connection to a central conical core of the roller; wherein said inner surface is formed at least in part of a plurality of rings forming an inner component having a rigidity greater than a rigidity of said hardened resin, said rings being constrained to said jacket by said hardened resin; wherein said rings are aligned axially along said sleeve and each of said rings has a conical inner surface, said rings being clamped to said jacket forming the outer surface of the sleeve and being spaced apart along a longitudinal axis of said sleeve; and wherein a portion of said conical surface formed directly of said hardened resin is provided between consecutive rings, said portion of said conical surface being flush with the conical surface of said rings.