Mold for molding lens

Details Mold for molding lens Mold for molding lens

2011-07-19

2011-07-19

Del Sole, Joseph S (Department: 1743)

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Male shaping member and female mold

C425S395000, C425S400000, C425S408000, C425S808000, C065S305000

Reexamination Certificate

active

07980848

ABSTRACT:
A mold for molding a lens includes a first mold part and a second mold part. The first mold part includes a substantially frustoconical guiding chamber defined therein, and a first molding surface in the substantially frustoconical guiding chamber. The second mold part includes a main body having a substantially frustoconical protrusion with a substantially cylindrical recess defined therein. The substantially frustoconical protrusion has a second molding surface in the substantially cylindrical recess. The substantially frustoconical protrusion is configured for inserting into and matingly engaged in the substantially frustoconical guiding chamber of the first mold part, thus aligning the first molding surface with the second molding surface.

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Definition of “Truncated pyramidal”, p. 1.

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