Inflatable gripper assembly for rock boring machine

Details Inflatable gripper assembly for rock boring machine Inflatable gripper assembly for rock boring machine

E - Fixed Constructions

21

B

E21B 17/10 (2006.01) E21B 4/18 (2006.01) E21D 3/00 (2006.01)

Patent

CA 2185495

An inflatable gripper assembly for a rock boring or cutting machine is disclosed. The inflatable gripper assembly comprises a base member and an elastomeric sheet secured in a fluid-tight and reaction force secure manner to the base member. The elastomeric sheet expands when fluid is supplied between the base member and the elastomeric sheet to brace a rock boring or cutting machine in a tunnel. The elastomeric sheet contracts when fluid is removed from between the base member and the elastomeric sheet to allow the rock boring or cutting machine to move within the tunnel.

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