Invention Grant
- Patent Title: Rolling cutter
- Patent Title (中): 滚动刀具
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Application No.: US13312159Application Date: 2011-12-06
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Publication No.: US08413746B2Publication Date: 2013-04-09
- 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 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
- US20120073881A1 ROLLING CUTTER Public/Granted day:2012-03-29
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