Wedge threads with a solid lubricant coating
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United States of America Patent
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Jun 9, 2015
Grant Date -
Feb 16, 2012
app pub date -
Oct 28, 2011
filing date -
Oct 13, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A tubular connection includes a pin member having external wedge threads configured to engage a box member having corresponding internal wedge threads, and a solid lubricant coating applied on at least one of the internal and external wedge threads wherein the solid lubricant coating comprises a first uniform layer of a dry corrosion inhibiting coating made of an epoxy resin containing particles of zinc and a second uniform layer of a dry lubricant coating covering the first uniform layer.
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