Method and device for power supply to an electric motor vehicle
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United States of America Patent
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Dec 21, 2010
Grant Date -
Dec 13, 2007
app pub date -
Sep 8, 2005
filing date -
Sep 8, 2004
priority date (Note) -
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Abstract
Method of producing a plasma conductor in air with the aid of a femtosecond high-frequency pulsing and high-repetition rate laser. The plasma is used for transmitting a current between an electric or catenary wire supplying a vehicle such as a train and an electric contact, for example a pantograph arm disposed on a moving vehicle and connected to a power distribution system thereof. The plasma is in contact with the electric or catenary wire and with an electric contact.
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