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US 4,497,272 AGranted
Mastless sails
OwnerSidney E. Veazeyinventor
Life of this patent
Estimating the term…
Abstract
Mastless sails for a boat or ship which comprise sails having capability for utilizing static and dynamic lift in combination with drag, gravity, and line tension to provide stability and propulsion forces for the boat or ship, communication capability located near said sails when aloft for use for said boat or ship, sensing capability located near said sails when aloft for use by said boat or ship, and apparatus for raising and lowering the communication and sensing apparatus.
Claims4
A mastless sail for a boat or ship comprising:
- said means consisting of a balloon, parafoil and spinnaker for utilizing static and dynamic lift in combination with drag, gravity, and line tension to provide stability and propulsion forces for the boat or ship;
- communication means located near the sail means when the sail means is aloft for use by the boat or ship;
- sensing means located near the sail means when the sail means is aloft for use by the boat or ship;
- and
- raising and lowering means for raising and lowering the communicating means and the sensing means.
2 more elements
Dependencies are inferred from the claim text.