US Patent 10032440 Modular self-dampening triggering system for acoustic percussion elements

A modular trigger system releasably attaches to a cymbal or other percussive element. The trigger system has a metal cover plate releasably affixable to a surface of the cymbal or percussive element, at least one piezo sensor releasably affixable to a surface of the cover plate, and a dampening element sandwiched between the undersurface of the cymbal or percussive element and the metal cover plate. The dampening element comprises a flexible thin sheet of rubber with a plurality of openings aligned with the piezo sensors.