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:
Sep. 29, 2009
Filed:
Feb. 21, 2007
Applicants:
Thorsten Schwefe, Celle, DE;
Thomas Ganz, Bergen, DE;
Inventors:
Thorsten Schwefe, Celle, DE;
Thomas Ganz, Bergen, DE;
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/46 (2006.01); E21B 10/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
Cutter inserts for rotary drill bits include a cutter insert body having a cutter recess configured to receive a backup cutter therein. Rotary drill bits for drilling a subterranean formation include at least one such cutter insert affixed to a blade rotationally behind a cutter pocket for a primary cutter. Methods of manufacturing such drill bits include providing a bit body having a plurality of blades. A cutter insert is provided and secured within a cutter insert recess formed in the face of a blade. A backup cutter is secured within a cutter recess of the cutter insert.