Plastic pellet cleaning apparatus and method for optical lense molding
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United States of America Patent
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Jul 28, 1981
Grant Date -
N/A
app pub date -
May 1, 1980
filing date -
May 1, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plastic pellet cleaning apparatus and method for producing plastic pellets for optical lense molding is provided. The plastic is melted and molded utilizing an injection molding process to produce optical lenses which will be used for a variety of applications. The apparatus and method disclosed will produce plastic pellets substantially clean of contaminants which would otherwise cause microscopic defects in the optical lenses produced therefrom. Generally, optical lenses produced which have these defects are rejected.
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Family
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Cited Art Landscape
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