Invention Grant
US08763728B2 Percussion assisted rotary earth bit and method of operating the same
有权
打击乐辅助旋转泥土钻头及其操作方法
- Patent Title: Percussion assisted rotary earth bit and method of operating the same
- Patent Title (中): 打击乐辅助旋转泥土钻头及其操作方法
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Application No.: US12973337Application Date: 2010-12-20
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Publication No.: US08763728B2Publication Date: 2014-07-01
- Inventor: Allan W. Rainey , James W. Langford
- Applicant: Allan W. Rainey , James W. Langford
- Applicant Address: US TX Grand Prairie
- Assignee: Atlas Copco Secoroc, LLC
- Current Assignee: Atlas Copco Secoroc, LLC
- Current Assignee Address: US TX Grand Prairie
- Agency: Schmeiser, Olsen & Watts LLP
- Main IPC: E21B10/36
- IPC: E21B10/36 ; E21B10/42
Abstract:
A hammer assembly is actuated to drive an earth bit through a formation. The hammer assembly includes a piston, and a flow control tube which extends through the piston. The flow control tube includes drive and return guide ports. The piston is repeatably moveable relative to the drive and return guide ports in response to a fluid flow through the flow control tube. In this way, the hammer assembly is actuated.
Public/Granted literature
- US20110088953A1 PERCUSSION ASSISTED ROTARY EARTH BIT AND METHOD OF OPERATING THE SAME Public/Granted day:2011-04-21
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