Shell resonant membranophone

Details Shell resonant membranophone Shell resonant membranophone

G - Physics

10

D

G10D 13/02 (2006.01)

Patent

CA 2153679

A drum (12) having improved acoustic characteristics comprises a rigid annular bridge (22) at one or both ends of a thin resonant annular shell (20) attached to the bridges (22). A drum head (24) is mounted on the bridge (22) by a tension mechanism (28, 32) attached only to the bridge (22) and the drum (12) is mounted on a drum stand (40) by mounting hardware attached only to the bridge (22) leaving the shell free of load bearing and tensive and compressive forces and making the shell resonate more effectively. The bridge (22) is machined from a solid block of wood formed of horizontal laminations. A microphone (80) can be mounted on the inside of the bridge (22) with electrical leads (84) exiting the drum (12) through the mounting hardware (40). A snare drum (14) having a thick body (65) instead of a resonant shell is machined in the same way and has internal head tension members (36) that make it possible to have a thicker body (65).

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