US Patent No. 10,557,318

EARTH-BORING TOOLS HAVING MULTIPLE GAGE PAD LENGTHS AND RELATED METHODS


Patent No. 10,557,318
Issue Date February 11, 2020
Title Earth-boring Tools Having Multiple Gage Pad Lengths And Related Methods
Inventorship Stephen Manson Slavens, Cypress, TX (US)
Zachary Borders, Spring, TX (US)
Assignee Baker Hughes, a GE company, LLC, Houston, TX (US)

Claim of US Patent No. 10,557,318

1. An earth-boring tool, comprising:a body comprising a shank and a crown adjacent the shank;
at least one first blade extending outward from the body, the at least one first blade comprising:
an upper surface;
a first gage region having a first longitudinal length; and
a recess extending at least partially into the at least one first blade from the upper surface;
at least one second blade extending outward from the body, the at least one second blade comprising:
a second gage region having a second longitudinal length that is greater than the first longitudinal length; and
an upper external surface of the crown between the shank and each of the at least one first blade and the at least one second blade, the upper external surface being tapered radially outward in a longitudinally upward direction relative to a central axis of the earth-boring tool, wherein the upper external surface tapers radially outward to a maximum diameter substantially equal to an outer diameter of the shank.