Ships – Sail or control means therefor – Specific sail structure or arrangement
Patent
1981-12-21
1984-03-20
Blix, Trygve M.
Ships
Sail or control means therefor
Specific sail structure or arrangement
114102, 114 39, 244123, 244210, 244219, B63H 904, B64C 924
Patent
active
044374267
ABSTRACT:
The present invention relates to a wing type air foil assembly that is adapted to be utilized by boats or vessels, or even vehicles, that is designed to function in the same general manner as a wind sail for providing driving thrust to the vessel or vehicle. In the case of a vessel, the wing type air foil is rotatively mounted about a generally vertical axis and includes a central spar journaled about a holding shaft extending upwardly from a pylon supported by the vessel. Provided about the upper end of the spar is a tip member while a root member is provided about the lower portion of the spar. Extending around and between the root and tip members is a flexible line that includes a forward run that forms a part of the leading edge of the wing type air foil assembly and a rear run that also extends between the tip and root members that forms a part of the trailing edge of the entire air foil assembly. A wing portion is formed by providing a skin covering that extends from the rear run of the flexible line member to and around the spar and back to the rear run to form a two-sided variable camber wing. An elongated slat is secured to the forward run of the flexible line member and is pivotably mounted thereto. The slat extends from the forward run of the flexible line member rearwardly toward the spar and includes a trailing edge that is generally maintained in spaced apart relationship with respect to the spar so as to define a slotted area therebetween.
REFERENCES:
patent: 2077685 (1937-04-01), Gerhardt
patent: 2319999 (1943-05-01), Jennings
patent: 3987984 (1976-10-01), Fischer
patent: 4164909 (1979-08-01), Ballard
patent: 4369724 (1983-01-01), Weiss
Blix Trygve M.
Corl Rodney
Fiberglass Unlimited, Inc.
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