Patent ID: 6569259
Filing Date: 2003-05-27
Classification: B29B,B29K,B29L,G11B,Y02W,Y10T

Abstract:
A disposal method of a waste optical disk having at least two layers on a substrate layer, the method comprising:rotating the waste optical disk on a turn-table disposed within a disposal chamber; moving a first bite cutting tool inwardly from a position external to the waste optical disk toward a center of the waste optical disk, a cutting depth of the first bite cutting tool being greater than a sum of thicknesses of said at least two layers; blowing air towards an interface between the first bite cutting tool and the waste optical disk from a blowout nozzle; and absorbing outside air from inside of the disposal chamber through an absorbing opening from an intake vent; wherein, upon the first bite cutting tool reaching the at least two layers, a space is created between said at least two layers and wherein said air blown from the blowout nozzle invades said space between said at least two layers, thereby causing at least the outermost of said at least two layers to be peeled off from the waste optical disk; and wherein the first bite cutting tool then removes any remaining layers of said at least two layers from the waste optical disk.