Rock bolt

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United States of America Patent

PATENT NO 8851802
SERIAL NO

12675562

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Abstract

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A hollow rock bolt comprising a shaft having a spiral form protruding from the exterior surface of the shaft, wherein the spiral form has a flank angle of between 30° and 60°.

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Patent Owner(s)

  • SANDVIK INTELLECTUAL PROPERTY AB

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Horsch, John New South Wales, AU 9 63
Weaver, Steven New South Wales, AU 30 418

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