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. 05, 2012
Filed:
May. 28, 2009
Applicants:
Volker Richert, Celle/Gross-Hehlen, DE;
Henning Finke, Pattensen, DE;
Inventors:
Volker Richert, Celle/Gross-Hehlen, DE;
Henning Finke, Pattensen, DE;
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/43 (2006.01); E21B 10/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drill bit for cutting casing employing a plurality of discrete, abrasive particulate-impregnated cutting structures having cutting structures therein extending upwardly from abrasive particulate-impregnated blades, which define a plurality of fluid passages therebetween on the bit face. Additional cutting elements may be placed in the inverted cone of the bit surrounding the centerline thereof.