Patent ID: 8198521
Filing Date: 2012-06-12
Classification: G10B,H01F

Abstract:
1. An actuator for actuating a pallet of an organ pipe under the command of a key of an organ, the actuator comprising: a movable member adapted to be connected to the pallet of the organ pipe; a magnetic plunger, mounted on the movable member; an electromagnet having a gap defined therein for receiving said magnetic plunger when energized, said gap comprising a space between a magnetic north pole and a magnetic south pole of said electromagnet formed when said electromagnet is energized; and a controller unit to control a current in the electromagnet to provide a controlled actuation of said pallet, proportional to a key dip of said key; wherein when said electromagnet is energized with said current and thereby creates a magnetic circuit and the movable member is substantially external to the magnetic circuit, and wherein a magnetic field is created between said magnetic north pole and said magnetic south pole of said electromagnet, exerting a force over said magnetic plunger and thereby moving said member to actuate said pallet of the organ pipe.