Ships – Sail or control means therefor – Having means to vary shape of sail
Patent
1999-07-02
2000-11-21
Morano, S. Joseph
Ships
Sail or control means therefor
Having means to vary shape of sail
114 3911, B63B 3500
Patent
active
061487538
ABSTRACT:
A system is provided for changing the shape of a foresail from a spinnaker shape to a Genoa shape through the utilization of a tensioning line which runs from the head of the spinnaker shaped sail to its tack. Tensioning of this line provides that the flap of material forward of the tensioning line folds back over the leeward side of the foresail, where differential pressure across the luff created by the tensioning line sucks the loose flap of material in towards the sail, such that it lays flat against the leeward side of the sail. The reshaping permits the use of the sail to within 50 degrees of the wind, thus allowing the use of one sail for wind conditions which would normally require two or more sails.
REFERENCES:
patent: 2620760 (1952-12-01), Melges
patent: 2858789 (1958-11-01), Stearns
patent: 3730124 (1973-05-01), Britton
patent: 3828711 (1974-08-01), Russell
patent: 5894807 (1999-04-01), Aiken
Morano S. Joseph
Tendler Robert K
Wright Andrew D.
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