Apparatus for defacing compact discs

Details Apparatus for defacing compact discs Apparatus for defacing compact discs

1993-01-26

1994-06-14

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Surface deformation means only

425810, 264106, 264293, B29C 5900

Patent

active

053205154

ABSTRACT:
A system for defacing compact discs so as destroy information stored thereon includes a defacer unit and a feed unit for feeding discs one at a time, with vertical orientation, to the defacer unit. A falling vertically-oriented disc is caught and held between two sets of driven endless rubber belts which transport the disc between opposed knurling wheels which embed grooves in opposite sides of the disc substrate without, however, cracking the substrate. The knurling wheels are designed to give the grooves an identifiable pattern.

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