Contact mechanism of an electric switching device
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United States of America Patent
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Feb 23, 2016
Grant Date -
Sep 19, 2013
app pub date -
Nov 28, 2011
filing date -
Nov 29, 2010
priority date (Note) -
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Abstract
A contact mechanism includes a current path having a 360° winding formed by a plurality of conductor sections and having an axis that is perpendicular to a plane in which a rotary contact body is movable. The conductor sections include a first section with a first current conductor that extends to a fixed contact. A second conductor section extends through the fixed and rotary contacts. A third conductor section extends through the rotary contact. A final, conductor section, including a second current conductor, extends to the rotary contact body and runs parallel and in close proximity to the first current conductor. Each of the first and second current conductors are substantially parallel to the rotary contact body in the closed position and are formed as straight and rigid busbars having a length corresponding at least to a length of a contact arm of the rotary contact body.
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