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:
Nov. 26, 2002
Filed:
Feb. 22, 2001
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 1/026 ;
U.S. Cl.
CPC ...
E21B 1/026 ;
Abstract
A drill bit for drilling a borehole, the drill bit comprising a bit body having an axis of rotation , a leading face, a plurality of blades upstanding from the leading face, at least one of the blades terminating in a gauge pad having a gauge surface arranged, in use, to face a wall of the borehole , the gauge surface being devoid of cutting elements, the gauge surface terminating at an end thereof remote from the blade at a junction with a gauge pad end wall , wherein the gauge pad carries a single cutter having a face and a cutting edge located radially inward of the gauge surface , and wherein the junction of the gauge surface and the gauge pad end wall crosses, radially, between the face of the cutter and the wall of the borehole