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:
Jan. 18, 2005
Filed:
Nov. 20, 2002
Volker Richert, Celle/Gross-Hehlen, DE;
Van J. Brackin, Spring, TX (US);
Matthew R. Isbell, Houston, TX (US);
Douglas J. Bobrosky, Alberta, CA;
M. Maclean Price, Kingwood, TX (US);
Volker Richert, Celle/Gross-Hehlen, DE;
Van J. Brackin, Spring, TX (US);
Matthew R. Isbell, Houston, TX (US);
Douglas J. Bobrosky, Alberta, CA;
M. MacLean Price, Kingwood, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A drill bit employing a plurality of discrete, post-like, abrasive, particulate-impregnated cutting structures extending upwardly from abrasive, particulate-impregnated blades defining a plurality of fluid passages therebetween on the bit face. Additional cutting elements may be placed in the cone of the bit surrounding the centerline thereof. The blades may extend radially in a linear fashion, or be curved and spiral outwardly to the gage to provide increased blade length and enhanced cutting structure redundancy. Additionally, discrete protrusions may extend outwardly from at least some of the plurality of cutting structures. The discrete protrusions may be formed of a thermally stable diamond product and may exhibit a generally triangular cross-sectional geometry relative to the direction of intended bit rotation.