Patent ID: 7084336
Filing Date: 2006-08-01
Classification: G10D

Abstract:
1. A user-adjustable stringed musical instrument comprising: an acoustic body having an exterior surface, an inner cutout structure, and resonate characteristics; a movable string support assembly located within the inner cutout structure comprising a rotatable movable body, a bridge, a nut, a neck, a plurality or strings, and a rotational axis for the entire string support assembly; and a rotary joint mechanism connecting said acoustic body to said movable string support assembly that provides a resonate connection between said acoustic body and said movable string support assembly, enabling said movable string support assembly to rotate on the rotational axis in relation to said acoustic body wherein the angular position of said movable string support assembly can be adjusted, the rotary joint mechanism further comprising: an inner elongated structure; an outer elongated structure; at least one spacer washer; an assembly tab affixed to said inner elongated structure; and an assembly slot in said outer elongated structure enabling said acoustic body and said movable string support assembly to be separated so that said spacer washer can be adjusted or replaced.