Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7197845 | T-top outrigger holder apparatus An outrigger holder for mounting on the top of a T-Top configured boat, has a bearing mechanism mounted above the T-Top designed to relieve most of the weight of the outrigger when turning the holder and outrigger to alternate positions. ... | 04/03/2007 |
| 5215483 | High speed sea train A vessel for pleasure or cargo transportation in which the vessel is born by a special flotation method comprising a plurality of circular floats that are designed to be rotated at high speed in such a way that the vessel skims across the water riding on ... | 06/01/1993 |
| 5076185 | Tangs cycleboard Surf board has multiple functions to serve as the sail boat, surf board, wind surf board, canoe and the rest seat on water. It comprises a foldable revolving sail, water wings, single sided pedals, water turbine, water jet nozzle, the foldable reclining s... | 12/31/1991 |
| 4803938 | Rotor powered sailboat A boat that is powered by an autogyro rotor is disclosed. A boat hull having a stern mounted rudder is provided with a selectively rotatable boom, preferably mounted in proximity to the rudder at the hull centerline. The boom is angled upwardly from its r... | 02/14/1989 |
| 4602584 | Propulsion device for a ship A propulsion system for a vessel comprises a conventional screw and rudder arrangement and includes one or more rotor sails in the form of an elliptical cylinder upstanding from the deck of the vessel formed from a rigid outer surface which is rotatable a... | 07/29/1986 |
| 4582013 | Self-adjusting wind power machine A machine for economical recovery of wind power employs a self-adjusting mass-balanced aerodynamic blade weathervaning freely around a lengthwise pitching axis forward of its aerodynamic center, and an aerodynamic roller in its leading edge, spun at high ... | 04/15/1986 |
| 4401284 | Collapsible magnus-effect rotor A lift-producing arrangement suitable for driving a boat by the Magnus effect comprises an elongate tubular envelope mounted for rotation about its longitudinal axis. A drive is provided to rotate the envelope. The envelope is of flexible material, e.g., ... | 08/30/1983 |
| 4116151 | Wind powered apparatus A wind-powered apparatus includes a series of vertically extending transversely curved foils carried in a support and movable longitudinally of the support from a furled condition, where the foils are bunched closely together and present a minimum surface... | 09/26/1978 |
