Double cone cutting head for a drill bit

作者: Eduardo Barnetche-Gonzalez

DOI:

关键词: FrustumDrillAcousticsCoaxialGeologyEngineering drawingHead (vessel)Integrally closedDrill bitBase (geometry)Drilling

摘要: The present invention is directed to a cutting head for use in rotary drill bit which the comprises stem and base integrally formed with stem. has first surface defined by frustrum of cone or other shape second shape, wherein surfaces are coaxial axis head. adapted be attached such that oriented at an angle respect bit.

参考文章(5)
John A Zublin, Rotary hammering bit ,(1942)
Eduardo Barnetche, Drill bit with single cutting head ,(1977)
Kenneth J Maddock, Rotating cutter bit ,(1965)
John A. Zublin, Gyrating rotary bit ,(1940)
Bernhard K Haffner, Harry M Cameron, Diamond drill bit ,(1957)