Drill rod or adaptor with strengthened spigot coupling

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United States of America Patent

PATENT NO 11162619
APP PUB NO 20180135782A1
SERIAL NO

15576113

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Importance

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Abstract

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An elongate component, such as a drill rod or adaptor, forms part of a drill string having a shoulder contact male spigot coupling. The male spigot includes a non-threaded shank and a threaded section in which an axial length of the non-threaded shank is provided at a predetermined minimum relative to an outside diameter of the spigot at the threaded section.

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Patent Owner(s)

Patent OwnerAddress
SANDVIK INTELLECTUAL PROPERTY ABSE 811 81 SANDVIKEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahola, Petri Gävle, SE 4 4
Norman, Andreas Sandviken, SE 5 3
Wickström, David Sandviken, SE 2 3

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