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:
Jun. 11, 2013
Filed:
May. 13, 2009
Anton F. Zahradnik, Sugar Land, TX (US);
Ron D. Mccormick, Magnolia, TX (US);
Rudolf C. Pessier, The Woodlands, TX (US);
Jack T. Oldham, Conroe, TX (US);
Michael S. Damschen, Houston, TX (US);
Don Q. Nguyen, Houston, TX (US);
Matt Meiners, Conroe, TX (US);
Karlos B. Cepeda, Fort Worth, TX (US);
Mark P. Blackman, Conroe, TX (US);
Anton F. Zahradnik, Sugar Land, TX (US);
Ron D. McCormick, Magnolia, TX (US);
Rudolf C. Pessier, The Woodlands, TX (US);
Jack T. Oldham, Conroe, TX (US);
Michael S. Damschen, Houston, TX (US);
Don Q. Nguyen, Houston, TX (US);
Matt Meiners, Conroe, TX (US);
Karlos B. Cepeda, Fort Worth, TX (US);
Mark P. Blackman, Conroe, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.