Invention Grant
- Patent Title: Expandable earth boring apparatus using impregnated and matrix materials for enlarging a borehole
- Patent Title (中): 使用浸渍和基体材料扩大钻孔的可膨胀土钻孔装置
-
Application No.: US11870493Application Date: 2007-10-11
-
Publication No.: US07963348B2Publication Date: 2011-06-21
- Inventor: Tommy Laird , Navish Makkar
- Applicant: Tommy Laird , Navish Makkar
- 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: E21B7/28
- IPC: E21B7/28 ; E21B10/32 ; E21B10/26
Abstract:
A tool for enlarging a borehole that includes an elongated tubular body; at least one movable arm affixed to the tubular body, the at least one movable arm comprising an outer surface formed of at least one of a matrix material and an abrasive material; and at least one actuating member for expanding at least one movable arm from the collapsed state to an expanded state is disclosed.
Public/Granted literature
Information query
