Anchor device with an elastic expansion sleeve

Anchor eye-bolt for mine roof

Anchor rod for an attachment anchor

Anchor tube and method for production thereof

Anchorage system for the rod-shaped tension member of an...

Anchoring device, such as a rock anchor

Anchoring system for the tension member of an anchor,...

Anchoring systems and methods of use thereof

Apparatus and method for a yieldable tendon mine support

Apparatus and method for mining tar sands, oil shales and...

Apparatus and method for monitoring tunnel boring efficiency

Apparatus and method for securing resin set bolts when...

Apparatus and method for shield-type tunneling

Apparatus and method for supporting a mine rib

Apparatus and method for the manufacture of rock bolts

Apparatus and technique for installing an elongated rod in...

Apparatus for and method of lining passageways

Apparatus for and method of setting pins in a mine roof

Apparatus for assembling a liner

Apparatus for automatic bolting in rock reinforcement