Electrical transmission or interconnection systems – Switching systems
Reexamination Certificate
2008-02-22
2011-11-08
Deberadinis, Robert L. (Department: 2836)
Electrical transmission or interconnection systems
Switching systems
Reexamination Certificate
active
08053933
ABSTRACT:
A switching device for controlling the supply of power from a supply to a load comprises a solid-state switch arranged in parallel with a relay of normally closed type. The solid-state switch and the relay are arranged in series with the load and the power supply. The switch also comprises a control adapted to connect the power supply to the load by applying an activation signal to the solid-state switch to cause it to conduce, then de-energizing the relay and then removing the activation signal to the solid-state switch in that order. The control is also adapted to disconnect the power supply from the load by applying an activation signal to the solid-state switch to cause it to conduct, then energizing the relay and then removing activation signal to the solid-state switch in that order. A corresponding method of operation is also disclosed.
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PCT Written Opinion of the International Searching Authority.
Hollingworth John
Smith Steve
Cable Management Products Ltd.
Deberadinis Robert L.
Dority & Manning P.A.
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