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| Number | Title | Issue Date |
| 4604959 | Wind-propelled craft A wind-propelled craft is disclosed which comprises a hull supporting a pair of unstayed masts arranged to pivot about an axis lying in approximately horizontal plane between a first position, in which one mast extends substantially vertically and the oth... | 08/12/1986 |
| 4584957 | Multi-hull sailing vessel with variable lift A double-ended two hull sailing vessel has a main hull and an auxiliary hull, where the distance between the auxiliary hull and the main hull can be varied for controlling heel. The mast is supported on a curved track for varying the angle of the mast rel... | 04/29/1986 |
| 4573423 | Device for adjusting the step of the mast of a sailboard or similar Device for adjusting the step of the mast of a sailboard or similar, characterized in that it comprises a slider receiving the foot of the mast, the slider being associated with a slide which may be secured to the hull of the board, a friction locking mea... | 03/04/1986 |
| 4570562 | Light sailing vehicle with movably mounted mast The invention relates to light, sailing vehicles equipped with at least one sail fixed on a mast and attached to a boom. The mast is supported toward its middle part at the top of a two-legged support, in the form of an inverted V, and mounted rigidly on ... | 02/18/1986 |
| 4562784 | Sailing craft A sailing craft having hydrodynamically shaped catamaran hulls and tapered configuration rudder assemblies attached to each hull. Low draft keels are attached to the fore one-half bottom portions of the hull and a pitch-sensitive variable camber mast and ... | 01/07/1986 |
| 4537145 | Wind propelled vessel Sailing vessel having mast and sail tiltable fore and aft and athwartship. The mast is held at an intermediate place along its length, and its lower end is swingable about the intermediate holding means.... | 08/27/1985 |
| 4526120 | Mast base structure for a sailboard The invention refers to a mast base structure for a sailboard including a connecting member located below a mast base lower section supporting a universal joint. The connecting member forms the connection between the mast and the sailboard. This connectin... | 07/02/1985 |
| 4506619 | Wing sail drive system A hydraulic drive system for a wing sail on a vessel, comprising a rotatable frame at the base of the mast and hydraulic cylinders connected between the frame and the ship's structure to cause rotation of the frame in either direction through a limited an... | 03/26/1985 |
| 4501215 | High heel angle mast stay release structure An upright mast is mounted from the lateral center of the hull of a sail boat having opposite sides. The lower end of the mast is pivotally supported from the hull for angular displacement about a horizontal fore and aft extending axis adjacent the lower ... | 02/26/1985 |
| 4498410 | Electively detachably coupled ball joint and pivot cup combination for a wind-propelled surfboard The present invention is an electively detachably coupled ball joint and pivot cup combination for electively detachably coupling a mast to a surfboard. The electively detachably coupled ball joint and pivot cup combination includes a pivot cup which is p... | 02/12/1985 |
| 4478164 | Wind-propelled craft A wind-propelled craft is disclosed which comprises a hull supporting a pair of unstayed masts arranged to pivot about an axis lying in an approximately horizontal plane between a first position, in which one mast extends substantially vertically and the ... | 10/23/1984 |
| 4466372 | Lateen rigged sailing board An improved lateen rigged sailing board is disclosed that basically combines a sailing board with a mast mounted thereon which is swivelly mounted to the upper surface of the sailing board, and which is provided with means to prevent the mast from complet... | 08/21/1984 |
| 4463699 | Sailing craft A sailing craft having hydrodynamically shaped catamaran hulls and tapered configuration rudder assemblies attached to each hull. Low draft keels are attached to the fore one-half bottom portions of the hull and a pitch-sensitive variable camber mast and ... | 08/07/1984 |
| 4457248 | Multihull vessels A multihull vessel has a center section; a pair of floats displaceable from normal operative positions laterally extended on either side of the center section upwardly to positions above the center section and inwardly toward the center axis of the vessel... | 07/03/1984 |
| 4453482 | Resilient mast hinge A radar loaded, hollow yacht mast is disclosed which is pivoted at the bottom to the deck by a tri-sectioned elastomeric torsion spring hinge assembly in which the torsion is produced by relative rotation between the inner section and the two outer sectio... | 06/12/1984 |
| 4449466 | Sailboard The sailboard has an opening, which contains a tongue of a mast base, which is articulatedly connected to the mast, so that the mast base is detachably connected to the sailboard. One side face of the opening is provided with a detent cam, which is adapte... | 05/22/1984 |
| 4437424 | Partially restrained arrangement for the mast and sail of a craft possessing inherent stability A wind propelled boat of the sailboard type, in which a generally cone-shaped sail mounting member is secured on an upper part of the boat, on the centerline of the boat. A portion of the cone-shaped member is designed to receive the base of the mast of t... | 03/20/1984 |
| 4385579 | Sailing craft A sailing craft of the type which includes a floating hull, a mast secured to the hull, a sail mounted on the mast and rudder means, wherein the mast is pivotally mounted with an articulation near but spaced from the base thereof with respect to a substan... | 05/31/1983 |
| 4345535 | Sailboat trimming and stabilizing system A system for sailboats for the purpose of maintaining the trim or attitude of the hull in a level position and at the same time adjusting the rigging and keel. The mast is made so that it can tilt to port or starboard and apparatus is provided to produce ... | 08/24/1982 |
| 4319535 | Spar base A base for the spar, i.e., mast, of a wind-propelled vehicle useful for attaching the spar, i.e., mast, to the universal joint which universal joint is further attached to the wind-propelled vehicle. The base has a cylindrical bore for receiving the spar,... | 03/16/1982 |
| 4276848 | Device for connecting a sailmast to a sailboard A device for connecting a sailmast to a sailboard comprises a mast-connecting universal joint, which is connected at one end to the mast and is permanently fixed thereto or can be only arbitrarily separated therefrom and is connected at its other end to a... | 07/07/1981 |
| 4273062 | Device for connecting a sailmast to a sailboard A mast-connecting universal joint is provided, which is connected at one end to the mast and is permanently fixed thereto or can be only arbitrarily separated therefrom, and which is connected at its other end to a supporting member, which is biased by a ... | 06/16/1981 |
| 4259917 | Foldable mast assembly A foldable mast assembly for sailboats wherein a main mast is pivotably connected to a stub mast which is pivotally connected to a base secured to the sailboat deck. A removable pin extends between the stub mast and base whereby the main mast and stub mas... | 04/07/1981 |
| 4253209 | Sail boards A transportable sail board has one or more inflatable bladders, and an envelope subdivided into plural demountable longitudinal sections. Rigidifying elements cooperate with bladder and envelope to form a demountable, lengthwise rigid assembly.... | 03/03/1981 |
| 4236476 | Articulate mast footing arrangement, in particular for wind surfboards A connecting arrangement for connecting two elements with one another, particularly a mast and a boat body of a wind surfboard comprises a male member connected with one of the elements, and a female member engageable with the male member with snap action... | 12/02/1980 |
| 4219284 | Articulated coupling device for the boom of a sailing boat The device comprises an element for rigidly fixing the articulated coupling device to a mast and a boom end-piece which are capable of pivotal displacement in perpendicular planes and each mounted on a common nut by means of a fork. Ribs and grooves forme... | 08/26/1980 |
| 4192247 | Sailing vessel A triple-hulled sailing vessel has a mast on its center hull. The lower end of the mast is pivotally connected to the center hull and a rigid transverse brace is connected to the central hull so that it pivots as the mast pivots; the outer ends of the bra... | 03/11/1980 |
| 4159006 | Multihull vessels A multihull vessel has a center section; a pair of floats displaceable from normal positions laterally extended on either side of the center section upwardly to positions above the center section and inwardly toward the center axis of the vessel as well a... | 06/26/1979 |
| 4121530 | Mast base hinge for a sailboat The mast of a sailboat is provided with a base casting rigidly secured to the bottom of the mast. A hinge member in the form of a socket is pivotally mounted to the rear of the mast base casting. The socket is adapted to fit over a rounded bearing pad of ... | 10/24/1978 |
| 4117797 | Mast and keel movement for sailing vessels A sailing vessel having a mast upstanding from the hull and connected to be free to tilt on the hull about a longitudinal axis, and a keel depending from the hull and also connected to be free to tilt on the hull about a longitudinal axis, the mast and ke... | 10/03/1978 |
| 4112861 | Mast stepping and unstepping structure A sailboat hull is provided including an upright mast having upper and lower end portions. First structure pivotally supports the lower end of the lower end portion of the mast from the hull for swinging between an upright position and a lowered position ... | 09/12/1978 |
| 4102287 | Catamaran with swingable mast and hulls A multiple hull craft such as a catamaran is provided having outrigger hulls which can be swung to either of two positions 180° apart and locked in either position. The mast is swingable about a center structure through an angle of 180° and is secured a... | 07/25/1978 |
| 4094263 | Heel compensation system An improved heel compensation system for use with a sailboat wherein the lateral mast stays or shrouds extending from a pivotally supported mast are directed by a plurality of pulleys to articulate a pivoted heel ballast.... | 06/13/1978 |
| 4068607 | Controllable wing sail A sail and rigging arranged to be easily installed on and removed from a hull in which the sail is a wing-like element having a high aspect ratio, and the rigging includes a supporting structure for holding the sail in the position that will provide the m... | 01/17/1978 |
| 4056072 | System for trimming the mast of a sailing yacht A system for trimming the mast of a sailing yacht wherein the fore and aft stays of the mast are fixed to the top of the mast and extend downwardly to the hull to which they are connected by means of hydraulic cylinders, including pistons respectively con... | 11/01/1977 |
| 4037553 | Apparatus for connecting a sailing mast to a sailing board The foot of a mast is connected to a sailing board on which the user stands while also holding the mast during sailing. The location of the connection is variable longitudinally of the board during sailing, whereby the most favorable point of application ... | 07/26/1977 |
| 4005669 | Mast displacement mechanism A mast displacement mechanism for a vessel having a hull and an upstanding mast comprising a cradle supported by the hull and defining track structure of a radius of curvature of a first predetermined length, a carriage movable with respect to said track ... | 02/01/1977 |
| 3985106 | Sailboat stabilizing system Mast is pivoted to sailboat hull and carries a counter-balance weight below the pivot. Wind pressure causes mast heeling with the counter-balance supplying the mast-righting force. Additionally, movable weights in the hull bottom are cable-connected to th... | 10/12/1976 |
| 3972300 | Sailing craft A sailing craft having a one-piece hull design with a unitary mast, keel and ballast assembly that is mounted on the hull of the craft so that the mast, keel and ballast assembly can rotate independently thereof to permit the hull of the craft to float fr... | 08/03/1976 |
