Glassware forming machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Mar 12, 1991
Issued Date -
N/A
app pub date -
Nov 2, 1989
filing date -
Jul 10, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A glassware forming machine contains molten glass and distributes runners of molten glass through a refractory orifice ring having a plurality of discharge holes. The refractory orifice ring includes an annular side wall of uniform cross-section, a bottom wall of uniform thickness, and a discrete number of strengthened areas on the interior of the annular side wall at selected locations equidistant from each pair of the holes. The periphery of each of the holes also has an increased thickness.
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Family
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Cited Art Landscape
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