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Coated Oil and Gas Well Production Devices

  • US 20110220348A1
  • Filed: 03/30/2011
  • Published: 09/15/2011
  • Est. Priority Date: 08/20/2008
  • Status: Active Grant
First Claim
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1. A coated device comprising:

  • one or more cylindrical bodies,hardbanding on at least a portion of the exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more cylindrical bodies,a coating on at least a portion of the exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more cylindrical bodies,wherein the coating comprises one or more ultra-low friction layers,and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating.

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