Drill string component for noise control during percussion drilling

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9109397
APP PUB NO 20120138367A1
SERIAL NO

13261180

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Abstract

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Rock drilling equipment and drill string components (2;18) for top hammer drilling and down-the-hole drilling for positioning between a drill rig and a drill bit include a pipe-shaped element (3;19), which is arranged for transferring only rotational movements from the drill rig to the drill hit. A vibration-damping structure (12) is arranged adjoining to at least a part of an inside (11) of the pipe-shaped element in a space (41) formed inwardly of the inside (11).

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Patent Owner(s)

Patent OwnerAddress
EPIROC DRILLING TOOLS AKTIEBOLAG737 25 FAGERSTA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Beronius, Alexander Fagersta, SE 3 10
Carlsson, Jimmy Fagersta, SE 5 10
Enblom, Samuel Örebro, SE 5 0
Göthberg, Mattias Örebro, SE 4 0
Stenberg, Göran Fagersta, SE 4 8

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