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:
Jul. 31, 2012
Filed:
Sep. 30, 2009
Earth-boring tools having expandable members and methods of making and using such earth-boring tools
Steven R. Radford, The Woodlands, TX (US);
Khoi Q. Trinh, Pearland, TX (US);
LI LI, Spring, TX (US);
Mark E. Anderson, The Woodlands, TX (US);
Steven R. Radford, The Woodlands, TX (US);
Khoi Q. Trinh, Pearland, TX (US);
Li Li, Spring, TX (US);
Mark E. Anderson, The Woodlands, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An expandable apparatus for use in a borehole includes a tubular body having at least one opening extending between a longitudinal bore of the tubular body and an outer surface of the tubular body and at least one member positioned within the at least one opening of the tubular body. The at least one member is configured to move between a retracted position and an extended position. An actuation structure is positioned within the tubular body. The actuation structure is coupled to the at least one member and is configured to move the at least one member from the retracted position to the extended position responsive to a flow rate of drilling fluid passing through the longitudinal bore.