Press mold
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United States of America Patent
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N/A
Issued Date -
Oct 18, 2001
app pub date -
Feb 7, 2001
filing date -
Mar 26, 1999
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
To provide a press mold for molding glass that is relatively less expansible than a mold material. The mold is configured so that the content volume of the mold is approximately equal to the volume of molded glass at the time of press molding, and a side face member of the mold is divided into a plurality of pieces so as to be capable of moving toward an outside but incapable of moving toward an inside. Thereby, over-tightening of mold side face can be prevented effectively, and a satisfactory molding operation can be performed by transmitting a molding pressure uniformly to a molded member without opening any mold side face.
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