Invention Grant
- Patent Title: Earth boring tools having fixed blades, rotatable cutting structures, and stabilizing structures and related methods
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Application No.: US15819185Application Date: 2017-11-21
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Publication No.: US10704336B2Publication Date: 2020-07-07
- Inventor: Robert Bradshaw , Roger Lee , Eric E. McClain , Saleh Al Esry
- Applicant: Baker Hughes, a GE company, LLC , OXY USA INC
- Applicant Address: US TX Houston US TX Houston
- Assignee: Baker Hughes, a GE company, LLC,Oxy USA Inc.
- Current Assignee: Baker Hughes, a GE company, LLC,Oxy USA Inc.
- Current Assignee Address: US TX Houston US TX Houston
- Agency: TraskBritt
- Main IPC: E21B10/42
- IPC: E21B10/42 ; E21B12/00 ; E21B10/14 ; E21B10/567

Abstract:
An earth-boring tool includes a body having a shank and a crown, a plurality of blades protruding from the crown of the body and extending at least substantially along a longitudinal length of the crown of the body, each blade extending radially outward and defining a respective radially outermost gage surface. The earth-boring tool further includes at least one rotatable cutting structure assembly including a leg and a rotatable cutting structure rotatably coupled to the leg. The earth-boring tool also includes at least one stabilizing structure secured to the crown of the body between an end of the leg opposite the rotatable cutting structure and the shank of the body, the at least one stabilizing structure being at least substantially circumferentially aligned with the leg of the at least one rotatable cutting structure assembly along a circumference of the crown of the body.
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