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US 12,768,271 B2Granted
Carbon fiber rock bolt
AssigneeCMTE Development Limited
InventorsKarsten Hoehn, Scott Barnes
Life of this patent
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Abstract
A carbon fiber rock bolt including: an outer carbon fiber rope including a series of tow fibers; and an inner core material. As the tension on the rock bolt increases beyond a predetermined limit, the inner core material undergoes a spatial compression, whilst the angle of twist in the carbon fiber rope strands decreases, resulting in extension of the carbon fiber rock bolt, replicating the ductility seen in steel rock bolts.
Claims10
A carbon fiber rock bolt including:
- an outer carbon fiber rope comprising a series of tow fibers;
- an inner core material;
- and
- wherein as the tension on the rock bolt increases beyond a predetermined limit, the inner core material undergoes a spatial compression
- wherein said inner core includes a honeycomb like structure having a series of cavities.
2 more elements
Dependencies are inferred from the claim text.