AC electromagnet
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United States of America Patent
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N/A
Issued Date -
Oct 9, 2003
app pub date -
Apr 4, 2003
filing date -
Apr 5, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An AC electromagnet for use in electric switchgear includes a fixed, U-shaped magnet core positioned symmetrically to a central plane and a movable armature that is guided during its translational stroke by guide devices. The armature is T-shaped and positioned symmetrically to the magnet core, and has a cross leg to close the magnetic circuit and a central leg, the central leg being oriented toward the central web of the magnet core. An air gap is formed between the free end of the central leg and the center of the central web transversally to the longitudinal axis of the central leg. Leg heads are formed on the lateral legs of the magnet core, enlarged with respect to the cross-section of the lateral legs. The internal profile formed by the magnet core and the enlarged leg heads has a square or rectangular design, into which the driving coil is insertable, and the driving coil fills the yoke profile almost completely.
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