Patent ID: 6486448
Filing Date: 2002-11-26
Classification: D21F,D21G,F16C

Abstract:
A heated roll for a paper machine, comprising:(a) a rotatable hollow cylindrical roll mantle having an axis of rotation, an axial length, an inner diameter, an inner surface, an outer surface and conduits formed as drill holes between said inner and outer surfaces, and beneath said outer surface of said roll mantle so as to extend axially over the axial length of the roll mantle; (b) a plurality of electrical heaters located in said holes for receiving electrical power and heating said roll mantle; (c) a nonrotating axle, having a diameter smaller than said inner diameter and a central axis, said central axis being aligned with said axis of rotation; (d) a bearing, for rotatably supporting said roll mantle on said axle; and (e) an electrical contact means for receiving electrical power for said plurality of electrical heaters while said mantle rotates about said axle.