Patent ID: 8028642
Filing Date: 2011-10-04
Classification: G10K

Abstract:
1. A whistle for producing resonant frequencies comprising: a) a body which includes a front portion including a mouth piece with an inlet, and includes a rear portion including at least two sound chambers, b) the front portion including at least two air passageways each receiving inlet air at the inlet and discharging inlet air at an orifice, c) the body further includes a central portion separating the front portion from the rear portion, the central portion including at least two exhaust ports each for discharging air and sound and for communicating inlet air from the orifice to the sound chamber, d) wherein the exhaust ports include deflectors in horizontally opposed relationship to the sound chambers for deflecting sound and air, e) wherein the front portion includes additional air intake ports for communicating port air into the exhaust port at an air aperture such that the orifices and air apertures discharge air along the deflector.