Apparatus for molding recorded discs
AssigneeRCA Corporation
InventorMichael L. McNeely
Life of this patent
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Abstract
An apparatus for molding recorded discs includes a pair of mold plates having opposed surfaces on which stampers can be mounted. A separate center hold down member fits into an opening in each mold plate to secure the inner edge of the stamper to the mold plate. At least one of the center hold down members has indicia forming means on its surface, either as raised projections or indentations in the surface, to form a desired indicia in the surface of the disc as it is being molded.
Claims7
In an apparatus for molding recorded discs which includes a pair of opposed mold plates and a center hold down member in each mold plate for securing the center edge of a stamper to the mold plate, the improvement comprising,
- one of said hold down members having indicia forming means on its surface for forming said indicia in the recorded disc as the disc is being molded.
Dependencies are inferred from the claim text.