Mine wall support anchor
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United States of America Patent
Stats
-
May 12, 1987
Grant Date -
N/A
app pub date -
Jan 7, 1986
filing date -
Jan 17, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An adhesive anchor comprises a tie rod 1 having a thread casing 3, a pressure nut 5 and a pressure plate 7. The thread casing is saw tooth shaped with steep flanks 33 facing the tie rod free end and flat flanks 31 facing away from it. The turns of the thread casing are wedged between the thread body 11 of the nut and the tie rod, considerably improving the transfer of forces between the casing and the rod. The anchor is especially suitable for the securing of gallery walls in coal mines.
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Family
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Cited Art Landscape
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