Patent ID: 7300622

Claim:
Device for generating nanostructures in a given thickness of a metal piece ( 10 ) comprising means for setting in motion at a given speed, balls ( 22 ) of given dimension, the balls ( 22 ) being perfectly spherical, and the means for setting them in motion at a given speed includes means for obtaining variable angles of incidence for a same impact point, means for reusing the balls ( 22 ), and means ( 26 ) for diffusing a chemical compound in a sealed chamber ( 25 ), wherein said means for setting the balls ( 22 ) in motion further comprises: means for projecting a stream of balls ( 22 ) at an angle of incidence of the balls ( 22 ) relative to the surface of the metal piece ( 10 ) that is variable as a function of time; and means for producing a relative movement of the projecting means parallel to the metal piece when several angles of incidence have been produced at the same impact point.