Apparatus for blow molding
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United States of America Patent
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N/A
Issued Date -
Aug 17, 2006
app pub date -
Feb 16, 2005
filing date -
Feb 16, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A molding tool for molding a substantially hollow article from a tubular parison comprises molding surfaces defining at least one cavity for forming a hollow portion of a molded article, the hollow portions having walls formed by expansion of the parison within the cavities and defining at least one solid area of the article to be molded attached to a wall of a hollow portion, the solid area comprising waste of the article as molded and the molding surfaces comprising surface undulations effective to improve the rate of heat transfer between the molding surfaces and the molding material comprising the solid areas. A mold assembly for molding hollow articles from tubular parisons comprises a molding tool in accordance with the invention. A blow molding machine comprises a mold assembly in accordance with the invention.
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