Invention Grant
- Patent Title: Rolling cutter
- Patent Title (中): 滚动刀具
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Application No.: US11526558Application Date: 2006-09-25
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Publication No.: US07703559B2Publication Date: 2010-04-27
- Inventor: Yuelin Shen , Youhe Zhang , Zhou Yong , Jiaqing Yu , Madapusi K. Keshavan
- Applicant: Yuelin Shen , Youhe Zhang , Zhou Yong , Jiaqing Yu , Madapusi K. Keshavan
- Applicant Address: US TX Houston
- Assignee: Smith International, Inc.
- Current Assignee: Smith International, Inc.
- Current Assignee Address: US TX Houston
- Agency: Osha • Liang LLP
- Main IPC: E21B10/46
- IPC: E21B10/46

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 the inner rotatable cutting element is disposed in the outer support element, where 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 where 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.
Public/Granted literature
- US20070278017A1 Rolling cutter Public/Granted day:2007-12-06
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