Patent ID: 7167075
Filing Date: 2007-01-23
Classification: H01C

Abstract:
1. A dual design resistor comprising: a run resistor having a first end and a second end; said run resistor disposed within an electrically conductive tubular housing having a first end and a second end; said first end of said run resistor in electrical contact with said first end of said housing; a conditioning resistor having a first end and a second end and an outer surface, said conditioning resistor in electrical contact with and extending from said second end of said housing; said housing and said conditioning resistor defining a tubular cavity therein; an insulating gas sealed in said tubular cavity; and a drive assembly within said cavity for advancing said run resistor linearly within said tubular cavity until said second end of said run resistor establishes electrical contact with said second end of said conditioning resistor thereby shorting out said conditioning resistor with said run resistor and allowing said run resistor to take over as the current carrier.