Patent ID: 6298785
Filing Date: 2001-10-09
Classification: F42D

Abstract:
A blasting apparatus comprising:a shock delivering member incorporated movably in a vessel and delivering a shock to a to-be-blasted object by colliding with the surface of the to-be-blasted object;an expansion force generating section provided in the vessel and being capable of producing an expansion force for causing the shock delivering member to collide with the surface of the to-be-blasted object;said expansion force generating section includinga pair of electrodes inserted through a cover member installed removably to an opening formed in the vessel,a thin metal wire connected between the electrodes,a fluid blasting substance for transmitting to the shock delivering member an expansion force generated when the thin metal wire is fused and vaporized rapidly by electrical energy supplied to the thin metal wire via the electrodes for a short period of time,a filling port for filling the blasting substance into the vessel, anda discharge port for discharging the blasting substance having been used from the vessel;sealing means for sealing the filling port and the discharge port, respectively; anda pressing means for pressing the vessel toward the to-be-blasted object.