Method of molding a bobbin for a ballast
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United States of America Patent
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-
Jun 9, 1992
Grant Date -
N/A
app pub date -
Feb 27, 1989
filing date -
Feb 27, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for molding a plastic bobbin is described comprising the steps of injecting a fluid plastic material into the opposite ends of an elongated cavity formed in the mold with the elongated cavity serving as an internal molding runner during the injection process and which forms a lamination compression ridge in the finished product.
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