Electromagnet and elevator door coupler
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United States of America Patent
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Apr 23, 2013
Grant Date -
Dec 24, 2009
app pub date -
Mar 23, 2007
filing date -
Mar 23, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An electromagnetic coupling device includes a vane member and an electromagnet. The electromagnet includes a core having a plurality of poles comprising at least four poles. An electrically conductive winding has a first portion surrounding a first one of the poles and a second portion surrounding a second one of the poles. The winding is selectively energized for selectively magnetically coupling the electromagnet and the vane member such that the vane member and the electromagnet are movable together in a desired direction.
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