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:
Feb. 03, 2009
Filed:
Feb. 21, 2007
Mark P. Blackman, Conroe, TX (US);
Mark E. Williams, The Woodlands, TX (US);
William C. Saxman, Montgomery, TX (US);
Michael B. Crawford, Montgomery, TX (US);
Gerald L. Pruitt, Kingwood, TX (US);
William W. King, Houston, TX (US);
Bruce A. Rohde, Highlands Ranch, CO (US);
Mark P. Blackman, Conroe, TX (US);
Mark E. Williams, The Woodlands, TX (US);
William C. Saxman, Montgomery, TX (US);
Michael B. Crawford, Montgomery, TX (US);
Gerald L. Pruitt, Kingwood, TX (US);
William W. King, Houston, TX (US);
Bruce A. Rohde, Highlands Ranch, CO (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A roller cone drill bit having a bit body with at least one support arm extending therefrom. Each support arm may have an interior surface and an exterior surface with an associated spindle extending inwardly from the interior surface. A respective cone assembly may be rotatably disposed on each spindle. A gap may be formed between interior portions of each cone assembly and exterior portions of the associated spindle with a fluid seal disposed in the gap to block fluid flow therethrough. Each cone assembly may include a generally circular backface disposed adjacent to the interior surface of the associated support arm. At least one fluid passageway may extend through each support arm to allow communication of fluid from the interior surface to an exterior surface of the support arm. A debris diverter insert having a generally hollow bore may be disposed within each fluid passageway.