The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2013
Filed:
Nov. 01, 2010
Daniel James Branagan, Idaho Falls, ID (US);
Brian E. Meacham, Idaho Falls, ID (US);
William D. Kiilunen, Rigby, ID (US);
James N. Milloway, Idaho Falls, ID (US);
Brian D. Merkle, Idaho Falls, ID (US);
Daniel James Branagan, Idaho Falls, ID (US);
Brian E. Meacham, Idaho Falls, ID (US);
William D. Kiilunen, Rigby, ID (US);
James N. Milloway, Idaho Falls, ID (US);
Brian D. Merkle, Idaho Falls, ID (US);
The NanoSteel Company, Inc., Providence, RI (US);
Abstract
A drill pipe and a method of applying hardbanding thereto. A hardbanding alloy comprising iron and manganese present in the range of 67 to 87 weight percent (wt. %), niobium and chromium present in the range of 9 to 29 wt. %, and boron, carbon and silicon present in the range of 3 to 6.5 wt. % may be welded around at least a portion of a tool joint circumference. The hardbanding alloy may exhibit a hardness of 45 Rc to 70 Rc and a wear rate in the range of 0.08 grams to 1.60 grams of mass loss after 6,000 cycles as measured using ASTM G65-04, Procedure A.