METHOD OF MAKING A BRIDGE OF EYEGLASSES
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United States of America Patent
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Issued Date -
Mar 2, 2017
app pub date -
Aug 24, 2016
filing date -
Aug 26, 2015
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Abstract
A method of making a bridge of eyeglasses includes the steps of: closing first and second mold cores to define therebetween a mold cavity having a shape corresponding to that of the bridge, the mold cavity having at least one injection hole communicating with an external environment; injecting metal clay through the at least one injection hole into the mold cavity at a high pressure to form a bridge blank; separating the first and second mold cores to expose the mold cavity and then ejecting the bridge blank from the mold cavity; and subjecting the bridge blank to a sintering process.
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