Apparatuses and methods for rolling angled threads
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United States of America Patent
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May 20, 2014
Grant Date -
Jan 19, 2012
app pub date -
Jul 14, 2010
filing date -
Jul 14, 2010
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Abstract
In various embodiments, a tapered thread roll, a set of tapered thread rolls, a thread rolling tool, and a thread rolling method are provided for rolling angled or tapered threads onto a workpiece to create a threaded workpiece. In at least one embodiment, the threaded workpiece may comprise a polished rod or a polished rod precursor as specified by the American Petroleum Institute for use in an oil-field sucker-type pump, for example.
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