Invention Grant
- Patent Title: Arrangement for employing drill steel centralizer travelling on feed beam of rock drill machine
- Patent Title (中): 在凿岩机进料梁上行走的钻钢扶正器布置
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Application No.: US12600731Application Date: 2008-05-15
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Publication No.: US08256529B2Publication Date: 2012-09-04
- Inventor: Juha Piipponen
- Applicant: Juha Piipponen
- Applicant Address: FI Tampere
- Assignee: Sandvik Mining and Construction Oy
- Current Assignee: Sandvik Mining and Construction Oy
- Current Assignee Address: FI Tampere
- Agency: Morgan, Lewis & Bockius LLP
- Priority: FI20075361 20070518
- International Application: PCT/FI2008/050274 WO 20080515
- International Announcement: WO2008/142201 WO 20081127
- Main IPC: E21B19/24
- IPC: E21B19/24 ; E21B19/086
Abstract:
The invention relates to an arrangement for employing a drill steel centralizer travelling on a feed beam of a rock drill machine. The drill steel centralizer has a pressure fluid-operated actuator for closing a transfer opening intended for a drill rod during drilling, whereby pressure fluid is fed into the actuator during drilling.
Public/Granted literature
- US20100139941A1 ARRANGEMENT FOR EMPLOYING DRILL STEEL CENTRALIZER TRAVELLING ON FEED BEAM OF ROCK DRILL MACHINE Public/Granted day:2010-06-10
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