Invention Application
- Patent Title: ROLLING CUTTER
- Patent Title (中): 滚动切割机
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Application No.: US14456436Application Date: 2014-08-11
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Publication No.: US20140345951A1Publication Date: 2014-11-27
- Inventor: Yuelin Shen , Youhe Zhang , Zhou Yong , Jiaqing Yu , Madapusi K. Keshavan
- Applicant: Smith International, Inc.
- Main IPC: E21B10/52
- IPC: E21B10/52

Abstract:
A cutting element for a drill bit that includes an outer support element having at least a bottom portion and a side portion; and an inner rotatable cutting element, a portion of which is disposed in the outer support element, wherein the inner rotatable cutting element includes a substrate and a diamond cutting face having a thickness of at least 0.050 inches disposed on an upper surface of the substrate; and wherein a distance from an upper surface of the diamond cutting face to a bearing surface between the inner rotatable cutting element and the outer support element ranges from 0 to about 0.300 inches is disclosed.
Public/Granted literature
- US09033070B2 Rolling cutter Public/Granted day:2015-05-19
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