|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||114/102.16 ; 114/102.18|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 6|
An improved lift creating sail and sail system where a substantially rectangular mainsail made up of a plurality of panels forms an aerodynamically efficient airfoil that is supported at approximately its center on a pivot so that it has three degrees of freedom. The mainsail can be tilted athartships, rotated along a yaw axis, and tilted fore and aft to create lift and minimum drag. An optional jib sail that tracks the motion of the mainsail also produces lift. The mainsail and jib sail can be trimmed and positioned along three degrees of freedom to obt...
[ I claim:] [1.] A lift-creating sail system comprising, in combination:a boat with at least one hull;a substantially rectangular mainsail supported at its middle from an A-frame attached to said hull, said mainsail free to move independently along each of three axes;a substantially triangular jib sail having an active area with a first, second, and third corner, the first corner of said jib sail constrained to move along a curved track, said track attached to said hull forward of said A-frame, the second corner of said jib sail attached to said A-frame;...