Drill string, connection system, earth drilling device and method to connect a drill string section

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United States of America Patent

PATENT NO 9725962
SERIAL NO

14956980

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Abstract

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A drill string section includes at least one plug-and-rotate seat (bayonet seat) for interacting with a (bayonet) catch, wherein the seat allows an additional plug-in step for fixing the catch in a connection secure against rotation in both directions of rotation about the longitudinal axis of the drill string section.

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Patent Owner(s)

Patent OwnerAddress
TRACTO-TECHNIK GMBH & CO KG57368 LENNESTADT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fischer, Sebastian Lennestadt, DE 54 274

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