Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge – Structurally combined with building or vehicle
Patent
1987-06-01
1989-01-03
Barefoot, Galen
Electricity: electrical systems and devices
Discharging or preventing accumulation of electric charge
Structurally combined with building or vehicle
244 1A, B64D 4502, H05F 300
Patent
active
047961538
ABSTRACT:
An apparatus provides lightning protection for the radome of an aircraft, or the like, by providing an electrically discontinuous path having a plurality of separated electrically conductive segments that upon exposure to a high voltage field, form an inonization channel in the air above the segments. The conductive segments are so formed that the gap separating adjacent segments is narrower along the outer, exposed surfaces of the segments than is the case between surfaces of the adjacent segments anchored to a dielectric material. Such a design ensures the electrical separation of adjoining segments while permitting the breakdown voltage between adjacent exposed surfaces to be minimized. Additionally lowering of the breakdown voltage can be obtained by providing a sequence of parallel secondary conductive segments that are separated from the primary conductive segments by a dielectric material and are so positioned as to underlie the gaps between primary segments, with an electrical connection through the separating dielectric material connecting each of the primary segments to its corresponding secondary segment.
REFERENCES:
patent: Re25417 (1963-07-01), Amason
patent: 3416027 (1968-12-01), Amason et al.
patent: 4237514 (1980-12-01), Cline
patent: 4445161 (1984-04-01), Brick
patent: 4479163 (1984-10-01), Bannink et al.
patent: 4506311 (1985-03-01), Kline
Amason, et al., "Randome Lightning Protection Techniques", Douglas Aircraft Company Paper, Oct. 1970.
Amason, et al., "Aircraft Lightning Protection Design Considerations", Douglas Aircraft Company Paper, Dec. 14, 1972.
Amason, et al., "Aircraft Applications of Segmented-Strip Lightning Protection Systems", Douglas Aircraft Company, Apr., 1975.
Alsenz Evert C.
Amason Myron P.
Schroeder John E.
Barefoot Galen
Lightning Diversion Systems
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