System and method for latching magnetic operator device
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United States of America Patent
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Jan 6, 2009
Grant Date -
Mar 27, 2003
app pub date -
Sep 24, 2001
filing date -
Sep 24, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A latching electromagnetically actuable device comprises an electromagnet and an electrical coil. The electromagnet comprises an armature and a core. At least one of the armature and the core is of a magnetically hard material. A housing supports the electromagnet and the coil. Energizing the coil in a first direction magnetizes the magnetically hard material to draw the armature and core together and latch the electromagnet. Energizing the coil is a second direction releases the electromagnet.
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