Patent ID: 7255139
Filing Date: 2007-08-14
Classification: B30B,F16D

Abstract:
1. A powder leveling method comprising the steps of: filling a cavity of predetermined shape with an opening in a flat surface with powder containing fiber so that the powder overflows the opening of the empty space in the flat surface; leveling the powder by moving a leveling means of which at least an edge portion of a bottom edge surface thereof is roughened in a first direction of movement over the empty space; and leveling the powder by moving the leveling means in a second direction of movement intersecting with the first direction of movement, at a speed greater than a speed with which the leveling means moves in the first direction of movement; wherein the leveling means includes a cylinder having a central axis perpendicular to the flat surface and a bottom edge surface of the cylinder slides over the flat surface; and wherein the second direction of movement is rotation of the cylinder about its axis.