Ulterra Drilling Technology L.P.

Patent application number	Title	Published
Ulterra Drilling Technology L.P. Patent applications
20110315453	SEAL ASSEMBLY FOR DRILL BIT - A drill bit includes a floating journal bushing, a seal, a cutter having a seal gland for the seal and a cutter bearing surface proximate to the journal bearing, wherein the cutter bearing surface has a first inner diameter, and a journal, wherein the cutter is rotatably coupled about the journal, wherein the journal bearing is rotatably coupled about the journal, wherein the journal has a seal boss having a first diameter, and a journal bearing surface having a second diameter, and wherein the first diameter is less than the first inner diameter.	12-29-2011
20100126775	HELICAL CHISEL INSERT FOR ROCK BITS - An insert for an earth boring drill bit, such as a PDC rock bit or a roller cone rock bit, is provided. The insert includes a base integrally joined to a top section, the top section having a first flank that curves in a substantially helical manner about a longitudinal axis of the insert to join a crest.	05-27-2010