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:
Apr. 15, 2014
Filed:
Aug. 06, 2010
Yi Fang, Provo, UT (US);
Federico Bellin, The Woodlands, TX (US);
Michael Stewart, Provo, UT (US);
Nephi a Mourik, Provo, UT (US);
Peter T Cariveau, Draper, UT (US);
Yi Fang, Provo, UT (US);
Federico Bellin, The Woodlands, TX (US);
Michael Stewart, Provo, UT (US);
Nephi A Mourik, Provo, UT (US);
Peter T Cariveau, Draper, UT (US);
Smith International, Inc., Houston, TX (US);
Abstract
PCD inserts comprise a PCD body having multiple FG-PCD regions with decreasing diamond content moving from a body outer surface to a metallic substrate. The diamond content changes in gradient fashion by changing metal binder content. A region adjacent the outer surface comprises 5 to 20 percent by weight metal binder, and a region remote from the surface comprises 15 to 40 percent by weight metal binder. One or more transition regions are interposed between the PCD body and substrate. The transition region comprises PCD, binder metal, and a carbide, comprises a metal binder content less than that present in the PCD body region positioned next to it.