Electrical resistors – Mechanically variable – Movable contact electrically adjustable over length of...
Reexamination Certificate
2007-01-23
2007-01-23
Hoang, Tu (Department: 2832)
Electrical resistors
Mechanically variable
Movable contact electrically adjustable over length of...
C338S118000, C338S194000, C338S202000
Reexamination Certificate
active
11003478
ABSTRACT:
A dual resistor for eliminating the requirement for two different value resistors. The dual resistor includes a conditioning resistor at a high resistance value and a run resistor at a low resistance value. The run resistor can travel inside the conditioning resistor. The run resistor is capable of being advanced by a drive assembly until an electrical path is completed through the run resistor thereby shorting out the conditioning resistor and allowing the lower resistance run resistor to take over as the current carrier.
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patent: 4001759 (1977-01-01), Bailey
patent: 4075597 (1978-02-01), Peart
Murray Charles W.
Siggins Timothy Lynn
Walker Richard L.
Hoang Tu
Jefferson Science Associates LLC
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