E - Fixed Constructions – 21 – D
Patent
E - Fixed Constructions
21
D
E21D 21/00 (2006.01) E21D 20/00 (2006.01) E21D 21/02 (2006.01)
Patent
CA 2677759
An adjustable yield rock bolt that comprises an elongated tensile support member that interacts with at least one gouging member and a receiving member capable of receiving the elongated tensile support member and hold the gouging member segment there between, wherein the elongated tensile support member extends beyond the receiving member a length that corresponds to a predetermined amount of yield before ultimate failure. The bolt has adjustability by allowing for controlled yield by gouging of the elongated tensile support member for any length of displacement.
Jingle Joseph John Jr.
Spearing Anthony John Spencer
Atlas Copco Mai Gmbh
Shapiro Cohen
LandOfFree
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