Patent ID: 7858865
Filing Date: 2010-12-28
Classification: G10D,G10G

Abstract:
1. A tuning stabilizing device for a stringed instrument comprising: a body portion adapted to be attached to a stringed instrument; a plurality of mechanical members disposed within said body portion, said mechanical members having a one to one correspondence with the plurality of strings on said instrument, each of said mechanical members being situated to exert a variable mechanical force on its corresponding string orthogonal to the longitudinal axis of the string at a position on the string spaced away from an anchored end point of the string; and one or more drive mechanisms, for imparting a force to said plurality of mechanical members to cause them to exert said mechanical force on their corresponding strings wherein said mechanical members are cams in the shape of an eccentric disk, rotatably mounted on said body portion, each of said cams exerting a variable orthogonal pressure at said position on its corresponding string as it is rotated.