Thread retention for an earth boring device

Boring or penetrating the earth – With tool shaft detail

Reexamination Certificate

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Details

C175S293000, C166S242600, C411S325000

Reexamination Certificate

active

07954565

ABSTRACT:
The invention relates to an earth boring device including a housing which has at least one portion with an inner thread, and a threaded element which has a corresponding outer thread, wherein the threaded element is slotted and has a receptacle for a securing element which increases the outer diameter of the threaded element and the contact pressure of the threaded connection between threaded element and housing, when inserted in the receptacle.

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patent: 102 01 225 (2003-08-01), None
patent: 103 59 880 (2005-07-01), None

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