05553681 is referenced by 53 patents and cites 69 patents.

A rotary cone drill bit for forming a borehole having a bit body with an upper end portion adapted for connection to a drill string. A number of support arms extend from the bit body. Each support arm has an exterior surface. A number of cutter cone assemblies equal to the number of support arms are mounted respectively on the support arms and project generally downwardly and inwardly with respect to an associated support arm. A ramp is formed on the exterior surface of the support arm and is inclined at an angle from a leading edge of the support arm toward a trailing edge of the support arm such that the ramp directs cuttings upward in the borehole.

Title
Rotary cone drill bit with angled ramps
Application Number
8/350910
Publication Number
5553681
Application Date
December 7, 1994
Publication Date
September 10, 1996
Inventor
Harry M Campos Jr
Grand Prairie
TX, US
Alan D Huffstutler
Grand Prairie
TX, US
Agent
Baker & Botts L
Assignee
Dresser
TX, US
IPC
E21B 10/18
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