Patent ID: 6095264
Filing Date: 2000-08-01
Classification: E21B

Abstract:
A rolling cutter drill bit, comprising:a body;at least one leg;a bearing spindle formed on the at least one leg;a rolling cutter, having an outer surface, rotatably mounted upon the bearing spindle;at least one conic band disposed upon the outer surface of the rolling cutter;at least one socket formed in the at least one conic band;at least one cutting insert received within the at least one socket, the at least one cutting insert having an outer wall surface and a bottom surface, the bottom surface having a periphery, the outer surface of the at least one cutting insert being received within the at least one socket with an interference fit; andthe at least one socket forming a juncture with the at least one conic band, the juncture contacting a plane in contact with the juncture in at least three points located on the juncture.