Sequential switching device with surrounding distinctive joint points structure
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United States of America Patent
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Apr 30, 2013
Grant Date -
Jul 12, 2012
app pub date -
Jan 6, 2011
filing date -
Jan 6, 2011
priority date (Note) -
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Abstract
The present invention is an innovation about a sequential switching device with surrounding heterogeneous joint points structure, in which the exterior of a middle conductive joint point is surrounded by a heterogeneous external joint point structure, so that a time delay is generated between the two joint points during the sequential OF/OFF operations, so the service life of joint points of a mechanical joint point switch can be prolonged, and the voltage drop and thermal loss of joint point are reduced, especially characterized in that the engagement and stability of joint points are enhanced.
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