Recorder

Details Recorder Recorder

1993-05-14

1994-12-27

Gellner, Michael L.

Music

Instruments

Wind

84382, G10D 700

Patent

active

053754980

ABSTRACT:
The bore of a recorder opens at a location slightly short of the lowermost end portions of a bell section at the end of the foot joint of the recorder. A concave dent is formed that gradually expands outwardly from the end of a bore opening toward an outer periphery of the bell portion. The concave dent formed at the lower end of the bell portion enables a smooth flow of the air discharged from the end of the bore opening. This bell structure also helps the air which is sucked back into the bore as the reaction to the air being discharged, to be smoothly returned toward the end of the bore opening. As a result, even beginners and small children can easily create the bass tones which otherwise would require complicated manipulations.

REFERENCES:
patent: 1993714 (1935-03-01), Greenleaf
patent: 3745871 (1973-07-01), Diez
patent: 3972385 (1976-08-01), Hino et al.
patent: 4515060 (1985-05-01), Ferron

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