Baker Hughes Corporation

Raul E Lema

James Leslie Overstreet

Chih C Lin

Don Quy Nguyen

Gregory L Ricks

Terry J Koltermann

Christopher C Beuershausen

Mark E Morris

Ronald L Jones

Rudolf Carl Otto Pessier

Chris M McCarty

Ronald Hales

Jimmy Wayne Eason

Matthew J Meiners

An earth-boring bit has a bit body that includes head sections, each having depending bit legs with a circumferentially extending outer surface, a leading side, and a trailing side. A bearing shaft depends inwardly from each of the bit legs for mounting a cutter. The bit includes a beveled surface formed at a junction of the leading side and the outer surface of each bit leg. The beveled surface is angled relative to a radial plane emenating from the axis of the bit. The angle of the beveled surface is at least 20 degrees, and extends to an inner surface of the bit leg. The bit can also have a layer of hardfacing on the leading, trailing and shirttail surfaces of the bit leg. A diversion finger of hardfacing extends circumferentially to direct cuttings.

Shirttails for reducing damaging effects of cuttings

A tungsten carbide compact of an earth boring bit has a cutting tip that is generally chisel-shaped with substantially flat flanks converging to an elongated crest. One of the flanks is smaller and has a greater included angle relative to the axis of the compact than the other flank. Shoulders extend from opposite ends of the crest. One shoulder has a radius of curvature that is smaller than the other shoulder.

Compact for earth boring bit with asymmetrical flanks and shoulders

Growing community of inventors

The Woodlands, TX, United States of America

Raul E Lema