US Patent 7150613 Contamination-free magnetic stamper holder

Patent 7150613 was granted and assigned to Richter Precision Inc on December, 2006 by the United States Patent and Trademark Office.

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Patent Inventor Names

George G. Ruth0

J. Hans Richter0

Matthew E. Thompson0

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Patent abstract

The apparatus is a contamination free stamper holder for molding discs for information storage. The stamper, the disc part of the mold holding the pits and grooves to be formed on the molded plastic, is held within the mold by one or more magnets that are completely enclosed within non-magnetic material. The wall thickness of the enclosing material between the magnets and the stamper is limited so that there is no significant loss in magnetic attraction.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=071506130

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