Rock breaker

Details Rock breaker Rock breaker

E - Fixed Constructions

21

C

262/67

E21C 37/12 (2006.01)

Patent

CA 1123462

ABSTRACT A rock breaker comprising a tool insertable in a hole in a rock and fed through a supply line with an incompressible liquid to maintain a column of the liquid in the hole, and means to apply to the liquid a shock means sufficiently high to fracture the rock, the tool comprising a hollow stem having an expansible collet and a resilient sealing ring and mechanical means to expand the collet and ring.

337528

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