Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jacob Richter0
Date of Patent
September 26, 2006
0Patent Application Number
108096200
Date Filed
March 24, 2004
0Patent Primary Examiner
Patent abstract
The present invention is directed to an improved flute-type instrument having a reduced bore diameter in the head section, a conical bore in the intermediate section and a standard sized bore diameter in the main section. The reduced bore diameter in the head section is dimensioned to closely correspond to the circumferential diameter of the mouth hole opening to promote laminar-like flow of air through the mouth opening and into the head section bore.
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