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:
Dec. 01, 2009
Filed:
Oct. 18, 2005
Amardeep Singh, Houston, TX (US);
Amardeep Singh, Houston, TX (US);
Smith International, Inc., Houston, TX (US);
Abstract
A cutter element for a drill bit includes a leading cutting surface and a trailing cutting surface. The leading surface includes a top surface and a front surface that meet in a radiused intersection forming a forward-facing, non-linear crest of non-uniform radius. The radius of the crest is smallest at the forward-most portion, and greater at each end. The crest has its largest radius at a location between its forward-most portion and one of its ends. The cutter element may be employed in the corner cutting portion of a rolling cone cutter in a drill bit, the cutter element being positioned such that the forward-most portion of the crest first engages the formation material, with the crest end having the largest radius being closest to the pin end of the bit.