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:
Aug. 31, 2004
Filed:
May. 13, 2003
Applicant:
Inventors:
James C. Minikus, Spring, TX (US);
Chris E. Cawthorne, The Woodlands, TX (US);
Stephen C. Steinke, The Woodlands, TX (US);
Gary R. Portwood, Kingwood, TX (US);
Gary E. Garcia, The Woodlands, TX (US);
David P. Moran, The Woodlands, TX (US);
Quan V. Nguyen, Houston, TX (US);
Assignee:
Smith International, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 1/008 ;
U.S. Cl.
CPC ...
E21B 1/008 ;
Abstract
A cutter element for a drill bit has a crest that defines a crest line. The crest can be non-rectilinear. The crest line of each cutter element defines an angle with respect to the axis of the rolling cone on which the cutter element is mounted. The cutter elements define different angles with respect to the cone axis and with respect to each other.