Ships – Sail or control means therefor – Specific sail structure or arrangement
Patent
1994-05-12
1994-12-13
Swinehart, Ed
Ships
Sail or control means therefor
Specific sail structure or arrangement
B63H 904
Patent
active
053720814
ABSTRACT:
A hand-held sail device is disclosed and includes a sail sized and shaped to define an airfoil configuration. The sail includes an upper edge, a lower edge and a leech edge. A frame supports the sail and includes a mast having front and rear end portions and is adapted for securing the upper edge of the sail, and a boom which also has front and rear end portions and is adapted for securing the lower edge of the sail. A hand gripping member is disposed on the windward side of the sail and has top and bottom end portions pivotally secured, respectively, to the rear end portions of the mast and the boom. A first connector mechanism joins the front end portions of the mast and the boom. A second connector mechanism pivotally interconnects the gripping member top end portion with the mast rear end portion, while a third connector mechanism pivotally interconnects the bottom end portion of the gripping member with the boom rear end portion. Finally, a mechanism as provided for limiting the pivotal movement of the gripping member away from the sail.
REFERENCES:
patent: 3858542 (1975-01-01), Lenoble
patent: 3924870 (1975-12-01), Spivack et al.
patent: 4505216 (1985-03-01), Elorza
Isaac John L.
Swinehart Ed
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