Electricity: electrical systems and devices – Safety and protection of systems and devices – Load shunting by fault responsive means
Reexamination Certificate
2005-12-20
2005-12-20
Jackson, Stephen W. (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Load shunting by fault responsive means
C361S058000, C361S111000, C361S113000, C361S118000
Reexamination Certificate
active
06977802
ABSTRACT:
The disclosure relates to the lightning protection of the transmitters in a transmission system. An etched circuit with lightning protection comprises at least one main line connected to a connector adapted to the output of a transmission antenna of the transmission system working at a fixed frequency or in a narrow frequency band around the fixed frequency. The circuit comprises a main line and at least one first line connected to the main line and substantially equivalent to an open circuit with respect to the main line for the stated frequency. The circuit can also perform a harmonic filtering function, thus increasing compactness by using a single circuit for both functions.
REFERENCES:
patent: 4985800 (1991-01-01), Feldman et al.
patent: 5101180 (1992-03-01), Frey
patent: 5844766 (1998-12-01), Miglioli
patent: 0 689 261 (1995-12-01), None
patent: 0 803 927 (1997-10-01), None
patent: 1 037 308 (2000-09-01), None
Jackson Stephen W.
Thales
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