Horizontal blow molding
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United States of America Patent
Stats
-
Nov 17, 1981
Grant Date -
N/A
app pub date -
Mar 20, 1980
filing date -
Mar 20, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Large blow molded objects are produced by extruding a generally tubular form in a horizontal direction so as to form a large pillow shaped object upon sealing. The sealed pillow shaped article is severed and conveyed to a mold having a predetermined configuration and blow molded into a desired shape. The horizontal production of the parison used for blow molding permits the production of large parisons without the sag associated with a vertical process and also permits continuous coextrusion of large parisons without the need for complex accumulating equipment.
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Cited Art Landscape
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