Tumbled, polished, vibrated broken tempered glass pieces
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United States of America Patent
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Jul 12, 2011
Issued Date -
N/A
app pub date -
Dec 28, 2005
filing date -
Apr 14, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An invention is provided for creating smoothed, heat-treated glass fragments. The invention includes placing a plurality of heat-treated glass fragments into a tumbling or vibrating apparatus. Each heat-treated glass fragment is formed from glass that has been heated to a temperature of at least 1000° Fahrenheit and rapidly cooled to a temperature below 700° Fahrenheit. The plurality of glass fragments are then tumbled or vibrated for a predetermined period of time such that surfaces of the heat-treated glass fragments are smoother than prior to tumbling. The glass fragments are thereafter removed from the tumbling apparatus, resulting in smoothed, heat-treated glass fragments that are suitable for direct handling without hand protection.
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