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. 07, 2016
Filed:
Aug. 07, 2009
David Gavia, The Woodlands, TX (US);
Floyd C. Felderhoff, Montgomery, TX (US);
Matthew R. Isbell, Houston, TX (US);
Michael L. Doster, Spring, TX (US);
David Gavia, The Woodlands, TX (US);
Floyd C. Felderhoff, Montgomery, TX (US);
Matthew R. Isbell, Houston, TX (US);
Michael L. Doster, Spring, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.