Patent ID: 6827677
Filing Date: 2004-12-07
Classification: B22F,B41F,Y10T

Abstract:
A roller or cylinder consisting of:a hollow tube-shaped casing having a hollow casing interior surface with an interior surface shape; a metallic foam core formed separate from said hollow casing and inserted into said hollow casing, said metallic foam core completely filling said hollow casing, said metallic foam core having a core outer surface, said metallic foam core outer surface having a shape complementary to said hollow casing interior surface shape, said metallic foam core outer surface and said hollow casing inner surface being in contact in their entireties with each other when said metallic foam core is positioned in said hollow casing; and a force transmitting connection between said hollow casing interior surface and said metallic foam core outer surface when said metallic foam core is positioned in said hollow casing, said force transmitting connection preventing movement between said hollow casing and said metallic foam core.