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Switching devices

  • US 5,694,099 A
  • Filed: 02/12/1996
  • Issued: 12/02/1997
  • Est. Priority Date: 08/19/1993
  • Status: Expired due to Fees
First Claim
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1. A switching device comprising a solenoid actuator, a first terminal attached to a first bus-bar on which is mounted a flexible switch blade operable by the actuator and having a movable contact at its free end, and a second terminal connected to a fixed contact with which the movable contact is engageable, the arrangement being such that when in use the device is in the ON condition the resultant current flow produces an electrodynamic force between the blade and the first bus-bar which tends to maintain the contacts in engagement, and in which the fixed contact is connected to the second terminal by a second bus-bar which is of an arched shape closely positioned on the side of the first bus-bar away from the switchblade, so as to produce in use a further electrodynamic force on the blade.

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