Apparatus for positioning anchor bolts and method of using same

Details Apparatus for positioning anchor bolts and method of using same Apparatus for positioning anchor bolts and method of using same

2008-01-30

2009-06-16

Bagnell, David J (Department: 3672)

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

C405S259100, C405S288000

Reexamination Certificate

active

07547161

ABSTRACT:
An apparatus for positioning a reinforcing tendon into a drill hole formed rock face including a body portion having a bore extending axially therethrough. The bore has a dimension selected to allow limited sliding movement of the tendon therethrough and includes a portion which tapers inwardly from a forward outfeed end towards a rearward or infeed end. A wedging member is movably provided in the bore. Movement of the wedging member towards the rearward end of the body results in its frictional engagement with the tendon to restrict its withdrawal from the body relative to the infeed end, whereas movement of the wedging member relative to the bore towards the outfeed end results in its disengagement from the tendon allowing it to be repositioned forwardly relative to the body. A drive is further provided to reciprocally move the body relative to the rock face.

REFERENCES:
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patent: 7384216 (2008-06-01), Wallstein et al.
patent: 2007/0183850 (2007-08-01), Hedrick

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