Back to results
US 11,780,547 B1Granted
Sailing vessel
OwnerDuncan Halliburtoninventor
Life of this patent
Estimating the term…
Abstract
The present disclosure is directed generally toward sailing vessels. One example is a catamaran with one or more pivoting masts per hull member, which may pivot from a generally perpendicular upright position, to a generally flat stowed position toward the bow of the hulls. The masts are capable of sustaining a plurality of sails, which may travel 180 degrees with respect to the hulls.
Claims20
A sailing vessel, comprising:
- a first hull member comprising a bow portion and stern portion, and port side and starboard side;
- a second hull member comprising a bow portion and stern portion, and port side and starboard side;
- a first mast pivotally coupled adjacent to one of the first hull member or the second hull member configured to pivot toward the bow portion of the first hull member or the second hull member from an upright position to a stowed position;
- a stabilizer coupled adjacent the bow portions of the first hull member and the second hull member, wherein the stabilizer comprises a generally flat lower surface and a generally parabolically curved convex upper surface.
1 more element
A sailing vessel, comprising:
- a first hull member comprising a bow portion and stern portion, and port side and starboard side;
- a second hull member comprising a bow portion and stern portion, and port side and starboard side;
- a first mast pivotally coupled adjacent to one of the first hull member or the second hull member configured to pivot toward the bow portion of the first hull member or the second hull member from an upright position to a stowed position;
- a stabilizer coupled adjacent the bow portions of the first hull member and the second hull member, wherein the stabilizer comprises a generally flat lower surface and a generally parabolically curved convex upper surface,
- wherein the stowed position of the first mast is about minus 20 to plus 10 degrees with respect to the first or second hull member,
- wherein the upright position of the first or second mast can vary from about 70-90 degrees relative to the first hull or second hull member.
3 more elements
A sailing vessel, comprising:
- a first hull member comprising a bow portion and stern portion, and port side and starboard side;
- a second hull member comprising a bow portion and stern portion, and port side and starboard side;
- a first mast pivotally coupled adjacent the first hull member or the second hull member configured to pivot toward the bow portion of the first hull member or the second hull member from an upright position to a stowed position;
- a stabilizer coupled adjacent the bow portions of the first hull member and the second hull member, wherein the stabilizer comprises a generally flat lower surface and a generally parabolically curved convex upper surface,
- wherein the first and second hull members comprise a generally flat outboard side and a generally convex inner side, which reduces the need for a dagger board, centerboard, or keel,
- wherein the stowed position of the first mast is about minus 20 to plus 10 degrees with respect to the first or second hull,
- wherein the upright position of the first mast can vary from about 70-90 degrees relative to the first hull or second hull,
- wherein the varying of the first mast position, varies the center of effort of wind force on a sail coupled to the first mast, in relation to the center of leward resistance on an underwater profile area of a leward hull.
5 more elements
Dependencies are inferred from the claim text.