Patent ID: 7237571

Claim:
A pulsating vibration air generation apparatus, comprising: a main body defining a tubular hollow space with which two air communication ports are associated, one of said two communication ports being connected to an air source; and a cylindrical rotary body situated for rotation in said tubular hollow space, said cylindrical rotary body having a rotary shaft at a position in alignment with the center axis of said tubular hollow space and a peripheral side surface so as to slide on the surface forming said tubular hollow space, said rotary shaft being connected to a rotary source for rotating said rotary shaft, and said cylindrical rotary body further having an air communication passage penetrating said cylindrical rotary body, wherein: said pulsating vibration air generation apparatus generates pulsating vibration air inside a pipe connected to the other of said two air communication ports of said main body by rotating said cylindrical rotary body by the rotary drive source while driving the air source.