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:
Jul. 07, 2015
Filed:
Jan. 09, 2009
Gary Portwood, Florence, IT;
Luca Tedeschi, Volterra, IT;
Giampaolo Ferrari, Santi Stefano di Nagra, IT;
Josh Gatell, Cypress, TX (US);
John Clunan, Tyler, TX (US);
Allen D. White, Houston, TX (US);
Gary Portwood, Florence, IT;
Luca Tedeschi, Volterra, IT;
Giampaolo Ferrari, Santi Stefano di Nagra, IT;
Josh Gatell, Cypress, TX (US);
John Clunan, Tyler, TX (US);
Allen D. White, Houston, TX (US);
Smith International, Inc., Houston, TX (US);
Abstract
A rolling cone drill bit for drilling in earthen formations having a plurality of rolling cone cutters. Each cone cutter includes a plurality of gage cutting elements, a first plurality of bottomhole cutting elements, and a second plurality of bottomhole cutter elements. Each of the first plurality of bottomhole cutting elements is staggered relative to the gage cutting elements on each cone cutter. Each of the second plurality of bottomhole cutting elements is staggered relative to the first plurality of bottomhole cutting elements on at least one cone cutter.