초록 ▼

A whistle for producing resonant frequencies comprising a body which includes a mouth piece having an inlet, and at least two sound chambers to which inlet air is blown from the inlet. The whistle further includes air passageways for communicating inlet air from the inlet to the sound box and sound

A whistle for producing resonant frequencies comprising a body which includes a mouth piece having an inlet, and at least two sound chambers to which inlet air is blown from the inlet. The whistle further includes air passageways for communicating inlet air from the inlet to the sound box and sound chambers. The body further includes at least two exhaust ports in communication with the sound chambers for discharging air and sound. The two sound chambers are dimensioned to create peak principal frequencies which interactively produce a pulsating sound having a periodic pulse frequency of less than 100 hertz. The whistle preferably includes air intake ports for communicating additional port air into the sound box.

대표청구항 ▼

I claim: 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 a

I claim: 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.