Hydraulic and earth engineering – Earth treatment or control – Chemical
Patent
1986-02-03
1987-11-03
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Chemical
405259, E21D 2002
Patent
active
047040530
ABSTRACT:
The anchor bolt assembly is of the type used in mine roofs and the like in which the anchor bolt assembly is positioned in a bore hole of a rock formation. The bolt assembly includes an elongated shaft having a frustoconical shaped plug at the upper end of the shaft and a head on the lower end of the shaft. A quick-setting resin cartridge is positioned in the bore hole above the plug of the bolt shaft and the bolt assembly is secured to the rock formation by at least the resin. The anchor assembly includes a helical coil external of, surrounding and connected to the bolt shaft for mixing the resin and urging it upward toward the plug end while the bolt shaft is rotated in one continuous direction. The helical coil is disposed below the conical plug and extends a substantial length along the bolt shaft to achieve the mixing.
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Hipkins, Sr. Edward C.
Locotos Frank M.
F. M. Locotos Co.
H & S Machine & Supply Co., Inc.
Taylor Dennis L.
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