Tunable drum

Details Tunable drum Tunable drum

1993-10-27

1994-12-27

Gellner, Michael L.

Music

Instruments

Drums

84411R, G10D 1302

Patent

active

053755006

ABSTRACT:
A tunable drum is provided, having drum body comprised of first and second parts adjustable relative to each other such that the first part may be moved either towards or outwardly away from the second part. The skin of the drum is fastened to the second part of the drum body and by adjusting the position of the first part relative to the second part, the tension of said skin across the body may be varied, and the pitch or the drum varied.
The first part of the body may comprise an upper rim of the body, with the rim being moveable either upwardly or radially outwardly relative to the second part of the body. In the latter case, the rim is provided with an expansion joint to permit the outward expansion of the rim. The rim is adjusted by means of an array of threaded rotatable bolts extending through the body to engage the rim and push it outwardly when the bolts are rotated.

REFERENCES:
patent: 1407108 (1922-02-01), Williams
patent: 2485985 (1949-10-01), Perry
patent: 4168646 (1979-09-01), May
patent: 4714002 (1987-12-01), Cleland

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