Electrical switching device with a triple motion contact arrangement
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United States of America Patent
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Apr 18, 2017
Grant Date -
Oct 1, 2015
app pub date -
Jun 16, 2015
filing date -
Dec 20, 2012
priority date (Note) -
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Abstract
A contact arrangement has a longitudinal axis and includes a first contact group with a first contact and a second contact and a second contact group with a third contact and a fourth contact. The first contact interacts electrically and mechanically with the third contact, and/or the second contact interacts electrically and mechanically with the fourth contact, for closing and opening the contact arrangement. At least one mechanical coupling is provided for transmitting an actuation force to the second contact group and thereby moving the second contact group. The at least one mechanical coupling is adapted to move the third and the fourth contact in such a way that their speeds differ along at least a portion of a travel path of the third contact or along at least a portion of a travel path of the fourth contact.
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