Method for producing plastic cylinder head cover
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United States of America Patent
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Oct 22, 2013
Grant Date -
Jul 28, 2011
app pub date -
Jan 13, 2011
filing date -
Jan 22, 2010
priority date (Note) -
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Abstract
A method produces a plastic cylinder head cover having an oil control valve holder as an integral part thereof by insert molding. The method includes a step of setting the oil control valve holder in one of a pair of molds that can approach and separate from each other; and a step of clamping the pair of molds and injecting plastic material. In the step of injecting plastic material, the oil control valve holder is set in the one mold with an insert pin being inserted in a hole thereof.
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