Baker Hughes Corporation

US Synthetic Corporation

Robert J Farr

Danny Eugene Scott

Rudolf Carl Pessier

Kenneth M Jensen

Stephen R Jurewicz

Paul D Jones

Debkumar Mukhopadhyay

Bill Jordan Pope

Damon Bart Crockett

Ronald W Ward

Edwin Sean Cox

Daniel Preston Wilding

Kevin G Graham

John W Hardy

Embodiments disclosed herein involve polycrystalline diamond ('PCD') tables and polycrystalline diamond compacts ('PDCs') that include PCD tables as well as methods and apparatuses for manufacturing thereof. Some embodiments include a canister assembly that may be used in a high-pressure/high-temperature (&#x201c;HPHT&#x201d;) process or other heating process to manufacture the PCD tables and/or the PDCs.

Methods of fabricating polycrystalline diamond compacts and related canister assemblies

An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the bearing shaft and includes a plurality of cutting elements. At least one of the cutting elements has a generally cylindrical body formed of hard metal with a convex cutting end. A plurality of substantially recesses are formed on the cutting end of the body. The recesses are configured such that a line parallel to the longitudinal axis of the body may extend from any point of each of the recess without touching any other point on the same recess. This enables the cutting element body and the recess to be formed simultaneously by conventional powder metallurgical techniques. A layer of super-hard material is formed on the cutting end of the body and overlays the recesses formed thereon.

Earth-boring bit with super-hard cutting elements

An earth-boring bit has a bit body and at least one cantilevered bearing shaft depending inwardly and downwardly from the bit body. A cutter is mounted for rotation on the bearing shaft and includes a plurality of cutting elements. At least one of the cutting elements has a generally cylindrical body formed of hard metal with a convex cutting end. A plurality of substantially linear, parallel lands are formed on the cutting end of the body. The lands have arcuate top surfaces and define grooves between the land having arcuate bottom surfaces. A layer of super-hard material is formed on the cutting end of the body and engages the lands and grooves formed thereon.

A cutting implement formed from a substrate of carbide, or other hard substance, bonded to a polycrystalline layer which serves as the cutting portion of the implement. The interface between the substrate and polycrystalline layer is defined by surface topography with radially spaced-apart protuberances and depressions forming smooth transitional surfaces.

Composite polycrystalline cutting element with improved fracture and

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Orem, UT, United States of America

Robert J Farr