- Patent Title: Shock wave modification in percussion drilling apparatus and method
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Application No.: US14917284Application Date: 2014-08-27
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Publication No.: US09637982B2Publication Date: 2017-05-02
- Inventor: Tomas Sh Jansson , Andreas Rindeskar
- Applicant: SANDVIK INTELLECTUAL PROPERTY AB
- Applicant Address: SE Sandviken
- Assignee: SANDVIK INTELLECTUAL PROPERTY AB
- Current Assignee: SANDVIK INTELLECTUAL PROPERTY AB
- Current Assignee Address: SE Sandviken
- Agent Corinne R. Gorski
- Priority: EP13183520 20130909
- International Application: PCT/EP2014/068126 WO 20140827
- International Announcement: WO2015/032661 WO 20150312
- Main IPC: E21B17/042
- IPC: E21B17/042 ; E21B1/00 ; E21B1/02
Abstract:
A percussion drilling apparatus is arranged to affect at least one characteristic of a shock wave produced in a drill string. The apparatus includes an elongate energy transmission adaptor having a shock wave modification sleeve configured with a free end and an attachment end projecting radially from an outer surface of the adaptor.
Public/Granted literature
- US20160215573A1 SHOCK WAVE MODIFICATION IN PERCUSSION DRILLING APPARATUS AND METHOD Public/Granted day:2016-07-28
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