Electricity: transmission to vehicles – Conductors – Third rail
Reexamination Certificate
2005-11-21
2009-06-23
Le, Mark T (Department: 3617)
Electricity: transmission to vehicles
Conductors
Third rail
C191S02200C, C191S0330PM, C174S126200
Reexamination Certificate
active
07549521
ABSTRACT:
Electrical connectivity devices for railway systems are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive fiber(s), or a combination of conductive powder and conductive fibers in a base resin host. The percentage by weight of the conductive powder(s), conductive fiber(s), or a combination thereof is between about 20% and 50% of the weight of the conductive loaded resin-based material. The micron conductive powders are metals or conductive non-metals or metal plated non-metals. The micron conductive fibers may be metal fiber or metal plated fiber. Further, the metal plated fiber may be formed by plating metal onto a metal fiber or by plating metal onto a non-metal fiber. Any platable fiber may be used as the core for a non-metal fiber. Superconductor metals may also be used as micron conductive fibers and/or as metal plating onto fibers in the present invention.
REFERENCES:
patent: 2067405 (1937-01-01), Mayne
patent: 5218171 (1993-06-01), Aldissi
patent: 6557476 (2003-05-01), Batisse
Integral Technologies, Inc.
Le Mark T
Schnabel Douglas
LandOfFree
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