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| Number | Title | Issue Date |
| 4236475 | Sail feeder A sail feeder for mounting on a mast formed with a sail receiving slot, said slot having an enlarged entrance for receiving the bolt rope of a mainsail, includes a rigid plate having a pair of legs projecting out from the plate at laterally-spaced locatio... | 12/02/1980 |
| 4230060 | Sailing system A mast is mounted onto a boat for 360° rotation about its longitudinal axis, relative to the sailboat and the rigging for the mast. The rigging braces the mast against buckling and comprises a masthead, a transverse spreader bar and shrouds. A forwardly ... | 10/28/1980 |
| 4211179 | Columnar structure A hollow columnar structure fabricated from at least two, part-oval, extruded aluminium sections and intended for use as a sailing vessel mast or boom, a lamp standard or as piping. The sections each have a longitudinally extending groove along each of th... | 07/08/1980 |
| 4194458 | Windsurfer with auxiliary propulsion equipment A standard windsurfer having a surfboard-type body provided with a daggerboard and having a mast and boom that support a sail on the surfboard is formed with an upwardly open storage compartment that is normally covered by a reversible lid. One side of th... | 03/25/1980 |
| 4166425 | Elastic connection assembly for the mast of a sailboat A sailboard for wind surfing comprising a board to which a mast is connected by a heel joint. A sail is stretched on the mast. The heel joint comprises two opposed bushings, one coupled to the mast and the other to the board and a block of material of hig... | 09/04/1979 |
| 4149482 | Aerodynamic mainsail and furling device A sleeve is rotatably mounted on the hull of a vessel on a generally vertical axis and contains and completely supports the mainsail rollably furled or partly furled about a generally vertical axis. The sleeve is aerodynamically formed with a forward curv... | 04/17/1979 |
| 4143611 | Leewardly aligned sail support system Sail is leewardly positioned with respect to the mast by flexible panels attached at, and extending aftwardly from a point approximately at the greatest width of the mast. Sail is guided by transverse stiff members mounted on the panels at their aft edges... | 03/13/1979 |
| 4135466 | Arrangement for dampening sound-vibrations in elongate hollow members such as masts of sailing vessels and methods for dampening sound-vibrations The present invention relates to arrangements for dampening sound-vibrations in elongate hollow members and more particularly to devices especially useful on sailing vessels to attentuate sound-vibrations generated by halyards slapping against hollow mast... | 01/23/1979 |
| 4090461 | Sail boat mast containing sail furling device with swivel haul-up means A hollow mast having a longitudinal slot in the aft end thereof contains a stationary tension member supporting a rotatable rod having at least one C-shaped groove longitudinally disposed therein parallel to the tension member. The C-shaped groove is adap... | 05/23/1978 |
| 4074647 | Sailing rig having camber adjustments A sailing rig having camber adjustments is disclosed. The rig includes a mast that is sharply cambered adjacent its base and pivoted to a vehicle, and a boom pivoted to the center pivot of the mast. The sail may be connected to the mast by a continuous be... | 02/21/1978 |
| 4073254 | Sailing mast for sailing boards In a sailing board having a tiltable and rotatable mast which is held by the user during sailing and is supported on the board by a base fitting, a lower portion of the mast adjoining the base fitting is flexible and is bridged by a resilient mounting.... | 02/14/1978 |
| 4072121 | Yacht mast An elongate mast section that when joined to at least one further section along the longitudinal edges thereof forms a mast. Each longitudinal edge has a U-shaped portion including a protruding flange which is joined to the corresponding flange of the adj... | 02/07/1978 |
| 4064821 | Variable camber wing sail The present invention pertains to an apparatus to improve the efficiency and performance of an aerodynamic lift structure for use on sailing devices. A two-sided, spaced apart sail structure is provided with resiliently deformable struts for each side, at... | 12/27/1977 |
| 4061101 | Sail furling apparatus A sail furling apparatus having a fixed core for connection to a wind powered device is disclosed herein. A rotatable sail sleeve having a bore formed therein is rotatably mounted on the fixed core. A double sheet airfoil sail is connected to the rotatabl... | 12/06/1977 |
| 4057023 | Halyard rig for roll-furling mainsail In the mainsail roll-furling system disclosed herein, the mainsail is roller-furled inside a tubular compartment in the mast itself, the sail being drawn out through an aft-facing slot in the mast. A swivel is utilized between the halyard and the luff of ... | 11/08/1977 |
| 4044702 | High efficiency aerodynamic sail system for boats, and method for sailing A high efficiency aerodynamic sail system for boats comprises a triangular fabric sail pivotally suspended at its head from the apex of a tripod mast structure such that air impinging upon the luff of the sail is free from the turbulent wake of any upwind... | 08/30/1977 |
| 4016823 | Retractable sailboat mast This disclosure pertains to a telescoping mast hingeably and removably affixed at the base portion thereof to the deck of a sailboat. A series of inwardly spring biased spheres engage recesses in adjacent telescoping elements of the mast thereby releasabl... | 04/12/1977 |
| 3986474 | Boat stay fastening Boat stay fastening having a main body extending through the mast and having a hollow cap at each end, the interior of each cap having a spherical surface in which resides a ball adapted to be attached to a stay.... | 10/19/1976 |
| 3948199 | Tubular metal mast for the rigging of a sailing boat The invention relates generally to masts for the rigging of sailing boats, such as for example centerboard boats of the "FINN" series, and is directed to the problem of increasing the elasticity of known masts of wood or tubular metal. A mast according to... | 04/06/1976 |
| 3930562 | Removable step climbing assembly A removable step climbing assembly that includes a number of longitudinally separated, confined space defining pairs of brackets alternately located on opposite side of a vertically extending rigid member, such as a mast of a ship or the like. A pair of s... | 01/06/1976 |
