Invention Grant
- Patent Title: Drill bit for improved transport of cuttings
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Application No.: US15551681Application Date: 2016-02-03
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Publication No.: US10344536B2Publication Date: 2019-07-09
- Inventor: Rasmus Hemph , Conny Kraft
- 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: EP15155777 20150219
- International Application: PCT/EP2016/052278 WO 20160203
- International Announcement: WO2016/131653 WO 20160825
- Main IPC: E21B10/38
- IPC: E21B10/38 ; E21B10/567

Abstract:
A rock drill bit includes a head provided at one end of an elongate shank. A plurality of fluid flushing passageways extend axially from an internal bore extending through the shank with at least one fluid flushing passageway having an exit end at the front face formed as an elongate slot having a length greater than a width to facilitate the rearward transport of cut rock fragment.
Public/Granted literature
- US20180066477A1 DRILL BIT FOR IMPROVED TRANSPORT OF CUTTINGS Public/Granted day:2018-03-08
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