Patent ID: 7375270

Claim:
A transverse whistle flute comprising: a generally cylindrical barrel with a first open end, a second open end, and a generally uniform wall thickness, such barrel defining an imaginary top reference line along the length of the barrel and a series of finger holes arranged through the barrel wall along the top reference line of the barrel and located proximate said second end coincidentally with said top reference line, a blowhole through the wall proximate the first end and offset approximately 30 degrees circumferentially from said top reference line, and a generally rectangular sound hole through the wall proximate the first end inward of said blowhole and defining a wedge in the barrel wall located approximately 180 degrees circumferentially from said top reference line; and a whistle mechanism retained within the barrel proximate the first end comprising a whistle chamber surrounding said blowhole, including a plug sealing the first end of the barrel located outwardly of said blowhole and a tapered stopper also retained within the barrel and located inwardly of said blowhole, said stopper serving the purpose of stopping the blown air from traveling freely down the barrel by obstructing the barrel and pressurizing the air and directing the air through a small fixed opening and over the sound hole.