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Location signaling device

  • US 8,356,569 B2
  • Filed: 01/26/2005
  • Issued: 01/22/2013
  • Est. Priority Date: 01/26/2004
  • Status: Expired due to Fees
First Claim
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1. A location signaling device comprising a wing balloon for signaling a location and a tether line fixed at a distal end of the tether line to said wing balloon and, in use, fixed at a proximal end of the tether line to said location;

  • wherein said wing balloon comprises an inflatable aerodynamically shaped hollow body configured to be at least partly filled with a lighter-than-air gas and a wing attack surface configured for generating a lifting force in air flowing relative to said wing balloon andwherein, when said body is inflated;

    said wing balloon comprises a flexible wing portion, whereby said attack surface of said wing balloon is passively reduced by an increase in air flowing relative to said wing balloon,said flexible wing portion is arranged such that increasing relative air-flow passively decreases a lift generating surface of said wing balloon.

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