Patent ID: 6525250
Filing Date: 2003-02-25
Classification: G10D

Abstract:
In a drum assembly, and for use with a beater, the combination comprising:a) a drum shell having opposite ends, b) drum heads at said opposite ends of the shell, c) and annular drumhead supports carried by the shell, d) said supports having head supporting annular rim zones with different annular configurations, around major extent of the drum, e) said head supporting rim zones defining bevels, f) said rim zones defining annular apices toward which said bevels extend, said apices located at different radial distances from an axis defined by the shell, g) each of said rim zones having opposite flanks that taper toward an annular apex, the flanks furthest from said axis extending at different angles relative to said axis, h) whereby when either of said drum heads is struck by a beater, the audible resonation of the drum exceeds resonation that occurs when both heads are of the same supported diameter.