Patent ID: 7425791

Claim:
A cavitation system, comprising: a cylindrical cavitation chamber, comprising: a cylindrical external surface; and a cylindrical internal surface, wherein said cylindrical external surface and said cylindrical internal surface define a cavitation chamber wall; an acoustic driver assembly coupled to said cylindrical cavitation chamber, comprising: at least one piezo-electric transducer; a tail mass adjacent to a first side of said at least one piezo-electric transducer; a head mass with a first end surface and a second end surface, wherein said first end surface of said head mass is adjacent to a second side of said at least one piezo-electric transducer and said second end surface of said head mass is adjacent to a portion of said cylindrical external surface, wherein a first portion of said second end surface of said head mass is surrounded by a second portion of said second end surface of said head mass, wherein said second portion of said second end surface extends beyond said first portion of said second end surface, and wherein said second portion of said second end surface defines a ring of contact between an outer perimeter of said second end surface of said head mass and said cylindrical external surface; means for assembling said acoustic driver assembly; and means for attaching said acoustic driver assembly to said cylindrical external surface.