Catamaran with swingable mast and hulls

Claim 1

In a boat: a. a center supporting structure disposed on a horizontal plane and including a forward spar, b. a pair of hulls at each side edge of said center supporting structure and connected together by said forward spar, c. hull locking means attaching said hulls to said forward spar, said locking means having bearing means rotatably mounting said hulls on said forward spar so that said hulls are mounted for rotation at the side edges of said central structure, d. said hulls normally extending downward from said center structure into water and supporting said central structure above the water surface, e. locking means on said bearing means normally maintaining said hulls extending downwardly from said center structure, f. said locking means being adapted to release said hulls and permit said hulls to be rotated 180° and relocked whereby said center structure can be turned over to an inverted position and said hulls repositioned to extend downward from said inverted position of the center structure, and g. a mast supporting bearing rotatably mounted on said forward spar of the boat, said mast supporting bearing journally receiving said forward spar therethrough so that said mast supporting bearing is rotatably about said forward spar through an angle of at least about 180° so that a mast supported on said forward spar is movable from a first position extending vertically downwardly from said forward spar to a second position about 180° from said first position with said mast vertically upwardly from said forward spar so that a capsized boat can be righted by one person.