Patent ID: 7781652
Filing Date: 2010-08-24
Classification: G10C

Abstract:
1. A grand piano piano action comprising: a repetition base with adjustable heel connection system, wherein said repetition base with adjustable heel connection system comprises: a heel with adjustable repetition base connection system, wherein said heel with adjustable repetition base connection system comprises: said at least one ridge or protrusion is sized to snugly fit within any one of said at least two notches or depressions with proper clearance between the upper surfaces of said at least one ridge or protrusion and the lower surfaces of said at least two notches or depressions to allow for sturdy attachment of said heel with adjustable repetition base connection to said repetition base with adjustable heel connection system by gluing means, and said main rib is sized to snugly fit within said main channel with proper clearance between the upper surfaces of said main rib and the lower surfaces of said main channel to allow for sturdy attachment of said heel with adjustable repetition base connection to said repetition base with adjustable heel connection system by gluing means between said surfaces.