Proportional electromagnet actuator and control system
US7754952B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2007 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Aug 9, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2007/1692
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.