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:
Sep. 21, 2010
Filed:
Apr. 28, 2005
Applicants:
Yuelin Shen, Houston, TX (US);
Youhe Zhang, Tomball, TX (US);
Zhou Yong, Spring, TX (US);
Inventors:
Assignee:
Smith International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cutter for a drill bit used in a geological formation includes a shaped ultra hard working surface. The cutter with the shaped working surface is mounted on a drill bit to provide desired cutting characteristics. The shaped working surface provides varied cutting characteristics depending upon the shape, and the characteristics can vary depending upon the depth of the cut.