Anchor bolt assembly
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United States of America Patent
Stats
-
Oct 16, 1984
Grant Date -
N/A
app pub date -
May 3, 1982
filing date -
May 3, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The anchor bolt assembly is of the type used in mine roofs where the anchor bolt is assembled and positioned in a drill hole in a rock formation and in which quick-setting adhesives secure the assembly to the rock formation. The assembly includes an elongated reinforcing rod, an elongated bolt, and a coupling internally threaded at each end and connected to the rod and bolt. A cylindrical plug of aluminum is positioned within the bore of the coupling and frictionally engaged by the threads so as to permit the entire assembly to turn in a first position and to disengage from its frictional engagement to permit turning of only the elongated bolt in a second position.
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Family
International Classification(s)
Cited Art Landscape
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