Invention Grant
- Patent Title: Expandable tool for an earth boring system
- Patent Title (中): 用于镗孔系统的可扩展工具
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Application No.: US12836564Application Date: 2010-07-14
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Publication No.: US08281880B2Publication Date: 2012-10-09
- Inventor: David R. Hall , Scott S. Dahlgren , Jonathan Marshall
- Applicant: David R. Hall , Scott S. Dahlgren , Jonathan Marshall
- Agent Philip W. Townsend, III
- Main IPC: E21B10/32
- IPC: E21B10/32
Abstract:
In one aspect of the present invention an expandable tool for an earth boring system comprises a mandrel comprising a tubular body and an outer diameter, a plurality of blades disposed about the outer diameter, and a slidable sleeve positioned around the outer diameter and capable of manipulating the plurality of blades into collapsed and expanded positions.
Public/Granted literature
- US20120012397A1 Expandable Tool for an Earth Boring System Public/Granted day:2012-01-19
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