Patent ID: 7074996

Claim:
A drum head assembly comprising: an outer ring member being substantially L-shaped in cross section and having a first outer circumference and a first inner circumference; an inner ring member being substantially L-shaped in cross section and having a second outer circumference and a second inner circumference; and a skin having a portion thereof positioned between said inner and outer ring members, and having a third outer circumference, wherein said outer ring member and said inner ring member can variably tension said skin, wherein said outer ring member has an inner surface having an L-shaped step, wherein said step has a first base surface and a first arm member, wherein said first arm member is substantially perpendicular to said first base surface, wherein said first base surface and said first arm member form an inside edge, wherein said inner ring member has a second base surface and a first plurality of apertures, and wherein said first base surface has a plurality of protrusion members.