Patent ID: 7501567
Filing Date: 2009-03-10
Classification: G10D

Abstract:
1. A drum comprising a cylindrical shell, a drum head fitted over the open end of the cylindrical drum shell, a drum tuning system utilizing a tuning system made of steel, aluminum, metallic, or other rigid materials, which employs a camming mechanism that is rotated clockwise or counterclockwise in the vicinity of the open end of the said cylindrical drum shell to alter the tension of said drum head; said drum tuning system comprised of an inner cylindrical counterhoop fitted radially over the rim on the drum head, said inner counterhoop surrounded by a cylindrical rotating actuator ring larger in diameter than the said inner counterhoop and said drum head, said rotating actuator ring having a multiplicity of equally spaced vertical tabs projecting upward from the horizontal surface atop its vertical cylindrical surface, said vertical tabs opposing each other radially around its diameter, said vertical tabs connecting inward facing wheels or rollers, said rollers having a round cross section at their rolling surface, ride on the horizontal surface of the of said inner counterhoop, said rotating actuator ring functioning as a cam when rotated clockwise or counterclockwise on the axis of the open end of the drum shell acting upon a camming mechanism, rotation occurring by means of a multiplicity of radial cleats attached to the vertical surface on the outside diameter of the rotating actuator ring, a tool having a handle engages the radial cleats and is used in conjunction with a radius actuator plate, which acts as an anchoring point on the drum to move the rotating actuator clockwise or counterclockwise; eccentric lugs positioned around the vertical surface of the outside diameter of the drum body in order to raise and lower the drum tuning system to provide a range of adjustment vertically in the vicinity of the open ends of the drum shell, horizontal mounting links connected to the eccentric lugs employ bolts which project radially outward from the drum to suspend the drum from a mounting system to be played by the musician.