Invention Grant
- Patent Title: Rod coupling having a sacrificial element
- Patent Title (中): 杆联接器具有牺牲元件
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Application No.: US12594691Application Date: 2008-04-04
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Publication No.: US08944189B2Publication Date: 2015-02-03
- Inventor: Franz-Josef Püttmann
- Applicant: Franz-Josef Püttmann
- Applicant Address: DE Lennestadt
- Assignee: Tracto-Technik GmbH & Co. KG
- Current Assignee: Tracto-Technik GmbH & Co. KG
- Current Assignee Address: DE Lennestadt
- Agency: Howard IP Law Group, PC
- Priority: DE102007016822 20070405; DE102007016824 20070405
- International Application: PCT/EP2008/002706 WO 20080404
- International Announcement: WO2008/122416 WO 20081016
- Main IPC: E21B17/02
- IPC: E21B17/02 ; E21B17/046
Abstract:
The invention relates to a coupling system for rod segments for use in horizontal earth boring, wherein the ends of the rod segments are interlinked via a separate sacrificial element which can be used as a predetermined breaking point or which allows the rod segments to be pivoted relative each other.
Public/Granted literature
- US20100150643A1 ROD COUPLING HAVING A SACRIFICIAL ELEMENT Public/Granted day:2010-06-17
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