| US 7,612,979 B2 | ||
| Lightning protected aircraft telescopic refueling mast | ||
| Felipe Sequeiros Murciano, Madrid (Spain); and Fernando Cano Perez, Madrid (Spain) | ||
| Assigned to EADS Construcciones Aeronauticas, S.A., Madrid (Spain) | ||
| Filed on Apr. 26, 2006, as Appl. No. 11/411,984. | ||
| Claims priority of application No. 06381009 (EP), filed on Mar. 06, 2006. | ||
| Prior Publication US 2007/0217116 A1, Sep. 20, 2007 | ||
| Int. Cl. H05F 3/00 (2006.01); H01H 47/00 (2006.01); H01H 3/00 (2006.01); H01H 3/02 (2006.01) | ||
| U.S. Cl. 361—218 [361/212; 361/220] | 5 Claims |
| 2. An aircraft telescopic in-flight refueling mast comprising:
a metallic structural beam, electrically connected to the aircraft by flexible conductive means, having inside a fixed metallic
tube and a metallic telescopic tube providing a fuel conduit, and, attached to said beam, flight control surfaces protection
means against electric discharges including lightning strikes and electro-static discharges, said protection means including
insulating means which include an insulated pipe section in the connection interface between the fixed tube and the aircraft
fuel system and insulated fittings in those elements susceptible to inject current inside the aircraft fuselage,
low conductive means which include a concentric liner between the fixed tube and the telescopic tube and a low conductive
segment assembled at the beginning of the telescopic tube constituting a dynamic seal between both tubes, and
conductive means which include means providing electrical contact between the fixed tube and the telescopic tube, sliding
electrical contacts between the flight control surfaces and the beam, and flexible electrical connections between the structural
beam and the aircraft.
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