E - Fixed Constructions – 21 – C
Patent
E - Fixed Constructions
21
C
262/67
E21C 37/00 (2006.01) E21B 7/00 (2006.01) E21B 19/24 (2006.01) E21B 21/01 (2006.01) E21C 37/12 (2006.01) E21C 37/22 (2006.01)
Patent
CA 1095093
Abstract of the Disclosure A hard compact material, such as rock, is broken by driving a longish mass body of relatively incompressible fluid, such as water, against the material to be broken. The mass body is caused to impact the material at a momentum required for breaking the material. The required momentum is obtained by adding the momentum of at least two fluid mass bodies. The longish mass body can be aligned with a drill hole by means of the drill bit and rod. The energy generator or fluid gun and the gun barrel can be made in separable units.
291444
Lavon Erik V.
Atlas Copco Aktiebolag
Fetherstonhaugh & Co.
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