Low-power sector-rotating toggling actuator
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United States of America Patent
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Dec 31, 2013
Grant Date -
Jul 5, 2012
app pub date -
Dec 27, 2011
filing date -
Jan 3, 2011
priority date (Note) -
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Abstract
The present invention provides low-power, sector-rotating, electro-magnetically and mechanically operable toggling actuator. The reluctance of the magnetic circuit of this invention is controlled to effect actuation with but little magneto-motive force and, little electrical power. The preferred embodiment of this invention provides a single-coil, sector-rotating, electromagnetically and mechanically operable toggling actuator. In this embodiment, a pivotally-mounted magnetically-permeable rotor is attracted to either of two stable rotary positions by permanent magnets affixed to a magnetically-permeable stator. A magnetic circuit between the stator and the rotor comprises an electromagnetic coil to provide magneto-motive force for toggling the rotor to a desired position responsive to the direction of electrical current through the coil. A switch may be provided for activating external circuits responsive to rotor position.
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