Proportional electromagnet actuator and control system
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United States of America Patent
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Jul 13, 2010
Grant Date -
Jul 26, 2007
app pub date -
Mar 30, 2007
filing date -
Oct 1, 2004
priority date (Note) -
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Abstract
The invention provides an actuator for actuating a pallet of a pipe organ under the command of a key of an organ. The actuator comprises a movable member, adapted to be connected to the pallet of the organ pipe and a magnetic plunger, mounted on the movable member. It also comprises an electromagnet having a gap within which the magnetic plunger can be inserted and moved, wherein the electromagnet when energized moves the member to thereby actuate the pallet. A controller roller unit controls a current in the electromagnet to provide a controlled actuation of the pallet that is proportional to a key dip of the key. It also provide for a system based on a digital serial link for controlling an assembly of organ pallets that are actuated by electromagnets.
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