Patent ID: 8801499

Claim:
A blasting apparatus comprising: a blast nozzle arranged to blast an abrasive on a surface of work; a nozzle case that forms an enclosure that surrounds the blasting nozzle, wherein the nozzle case includes a cover opposite the nozzle; the cover comprising: a surface for airflow alignment that is parallel to the work surface; and a blast hole through which the abrasive blasted from the blasting nozzle passes; and a collecting case that surrounds and is arranged to cover an outer surface of the nozzle case, and comprises a collecting passage disposed around the nozzle case, wherein the abrasive is collected by suction from the collecting passage, wherein the blasting apparatus is arranged to collect the abrasive, which is blasted from the blasting nozzle and strikes the work surface, from the collecting passage through a clearance provided between the surface of airflow alignment of the cover and the work surface.