Electricity: conductors and insulators – Lightning protection
Reexamination Certificate
2011-03-29
2011-03-29
Patel, Dhiru R (Department: 2835)
Electricity: conductors and insulators
Lightning protection
C174S003000, C174S006000, C174S007000, C174S051000, C361S117000, C439S092000
Reexamination Certificate
active
07915525
ABSTRACT:
A lightning direction device is provided. The lightning direction device includes a drag member, a pendant mass and a conductor. The drag member is configured to have a select amount of wind resistance. The pendant mass has a select weight and shape. Moreover, the conductor is coupled between the pendant mass and the drag member.
REFERENCES:
patent: 5741167 (1998-04-01), Hagerty
patent: 7495168 (2009-02-01), Park
patent: 7655861 (2010-02-01), Duley
Lalande, P. et al., “Connection to Ground of an Artificially Triggered Negative Downward Stepped Leader”. 10thInternational Conference on Atmospheric Electricity, 1996, pp. 668-671.
Willett, John C. et al., “Triggered Lightning Risk Assessment for Reuseable Launch Vehicles at the Southwest Regional and Oklahoma Spaceports”. Jan. 29-Feb. 2, 2006, Paper No. 8.9, 12thConference on Aviation, range, and Aerospace Meteorology, American Meteorological Society.
Alliant Techsystems Inc.
IPLM Group, P.A.
Patel Dhiru R
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