Patent ID: 8541673

Claim:
A piano hammer stopper system comprising: a stopper rail set comprising at least a first stopper rail member and a second stopper rail member, each movable between respective first positions, allowing unobstructed movement of associated piano hammers, and respective second positions, stopping at least one associated piano hammer from striking any corresponding string; at least one drive shaft rotatably coupled to one or both of said first and second stopper rail members of the stopper rail set; a drive arm attached to the at least one drive shaft and engaging a drive fulcrum; and at least one travel guide directing movement of one or both of said first and second stopper rail members of the stopper rail set between respective first and second positions; wherein rotation of the at least one drive shaft rotates the drive arm to engage the drive fulcrum for moving one or both of said first and second stopper rail members of the stopper rail set between its respective first and second positions.