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A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.
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| Number | Title | Issue Date |
| 7866271 | Placement system for a flying kite-type wind-attacked element in a wind-powered watercraft Disclosed is a placement system for a free-flying kite-type wind-attacked element in a watercraft in which the kite-type wind-attacked element comprising a profiled wing is connected to the vessel body via a traction rope. Said wind-attacked element can be guided fr... | 01/11/2011 |
| 7270067 | Wheel-controlled sails The present invention simplifies sailing providing control of one or more sails with a wheel. The proposed system eliminates the need to control boom-footed sails separately, giving benefits of less gear and rig for short handed sailing. The wheel controlling the sa... | 09/18/2007 |
| 7263939 | Simplified elevated sailing apparatus An elevated sailing apparatus that extracts traction power from the wind. It operates without the heeling moment (typical of conventional sailboats), which constrains the design and limits the power that can be used. A wing or sail is attached beneath a streamlined ... | 09/04/2007 |
| 7234406 | Fast sail This invention belongs to the field of wind propelled vehicles. The goal of the invention is to provide large sails creating no overturning force. This is achieved by placing the top part of the sail above the vehicle and the bottom part of the sail aside from the v... | 06/26/2007 |
| 7213529 | Emergency sail system An emergency sail system for disabled watercraft comprises a mast receptacle for interfacing with the watercraft structure and a multi-segmented main mast supported by the mast receptacle in a substantially vertical orientation and removable therefrom. A sail assemb... | 05/08/2007 |
| 7177735 | Control apparatus for a hull with a four-cycle engine installed thereon A control apparatus for a hull with a four-cycle engine installed thereon can perform engine stop processing by quickly detecting a turnover state of the hull while suppressing a turnover determination delay due to noise superposition. The apparatus includes a turno... | 02/13/2007 |
| 7109602 | Contactless power supply system and branch box used therefor An arrangement comprising a magnetic body (12) having a hole portion (11) for passage of a primary-side first induction line (2), a primary-side second induction line (5) for electrically feeding a load in a contact less manner, an added ... | 09/19/2006 |
| 7100867 | Lifting foil A lifting foil for an aircraft, a hydrofoil or the like having a pair of courses or wings. Vortex losses due to spanwise fluid flow are substantially reduced by joining the tips of the courses with flow guides configured for jointly terminating the undesired flows. ... | 09/05/2006 |
| 7075191 | Wind and water power generation device using a rail system A power generation assembly for use in generating electrical power from air or water currents includes a rail system forming a loop, a vane assembly having a frame and at least one vane, and a car assembly slidably mounted to the rail, including a linkage portion co... | 07/11/2006 |
| 6992402 | Wind-driven power station The wind-driven power station comprises a closed-loop rail track consisting of sections of gradual ascent and descent. The descent section directed upwind is positioned in an artificial tunnel. Basic elongated sections of the rail track are situated across the predo... | 01/31/2006 |
| 6971430 | Cast composite sail and method An apparatus for casting sails comprising a roll stand configured to supply a carrier film. The apparatus contains a support mechanism for the carrier film, and further comprises of a drawing mechanism, a first resin dispenser, a first wiper portion, two yarn applic... | 12/06/2005 |
| 6953000 | Universally compatible, semi-elliptical, vertically deployed sail system for wind—propelled vehicles A comprehensive System of hoisted, universally compatible, semi-elliptical mainsails and self-tacking headsails. Reducing weight on deck and aloft and fully cockpit-controlled, self-boomed System sails replace cumbersome conventional genoas and rigid booms with self... | 10/11/2005 |
| 6925949 | Elevated sailing apparatus An elevated sailing apparatus that includes one or more wings, tethered to a conveyance, and suspended from beneath a streamlined, lighter-than-air blimp. The wings generate both propulsive and lifting forces from the wind. The propulsive force is used to propel a c... | 08/09/2005 |
| 6918346 | Marine craft towed by a kite-type canopy A marine craft includes a floating body, elements adapted to generate a center-board effect, in particular a center-board projecting beneath the floating body, and a rigging. The rigging includes at least a directional kite forming a canopy and a series of sheets co... | 07/19/2005 |
| 6910434 | Control device for steering kite on a boat A control device for a steering kite on a boat. The steering kite can be steered by a steering device and at least two or three, preferably at least four or five, suspension lines. The control device comprises at least one force introduction rail that extends horizo... | 06/28/2005 |
| 6779473 | Winged sailing craft A sailing craft that can transform from wind propulsion mode to flying mode, comprises a body and two sails or wings each pivotally connected to a common boom which is supported by a spar pivotally connected to the body. The dihedral angle between the wings can be v... | 08/24/2004 |
| 6575107 | Rotary gear for sailing boats An improved rotary gear for sailing boats is provided wherein the connection of the boom to the rest of the rig is such that on the horizontal plane the boom must rotate simultaneously with the rest of the rig, but that it can move up and down in the vert... | 06/10/2003 |
| 6453839 | Self stabilizing tow apparatus When it is beneficial for a towing craft, such as a boat, to tow from a point high above its center, an airfoil can be fastened to a tether for improved roll and yaw stability. In the case of a wakeboarder, the upward tow angle afforded by a tall tower im... | 09/24/2002 |
| 6189472 | Craft with tilting sail A single or multi-hulled sailing craft has a stub mast 5 upstanding from the hull. A sail 10 has a luff edge 11 secured to a luff boom 20 and a foot edge 12 secured to a foot boom 21 which is connected to the lower end of the luff boom. Part way along the... | 02/20/2001 |
| 6116177 | Mast with top boom An improved mast assembly for use on a sailing vessel having both an upper boom and a lower boom that allows a user to control the upper section of the sail independently or in conjunction with the lower section of the sail. The mast of the assembly is po... | 09/12/2000 |
| 6003457 | Boat powered by means of a kite via a hinged arm Apparatus for powering a boat by a kite so as to use wind as a prime mover and without generating significant rolling and yawing moments, having, in combination with the boat, an arm hinged at one extremity to the boat with means for controlling the posit... | 12/21/1999 |
| 5992341 | Linear motion wind driven power plant A linear motion wind driven power plant utilizes a closed-loop track having a plurality of carriages configured to move thereabout. At least one sail is formed to each of the carriages so as to be rotatable 360 degrees of azimuth. At least one electrical ... | 11/30/1999 |
| 5937779 | Single-hand sailboat having novel spinnaker raising and lowering system A spinnaker raising and lowering system is provided for a sailboat. The system includes a first pulley mounted in a movable mounting. A second pulley contained in a mounting which is fixed to the deck of the sailboat. A third pulley contained in a mountin... | 08/17/1999 |
| 5918561 | Lift creating sail and sail system 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 ... | 07/06/1999 |
| 5485799 | Device with at least one variable-geometry aerodynamic member including a boundary layer control system The member may for instance be a sail having at least one opening to create an air flow from the pressure face to the suction face, and guides to guide the air emerging from the opening on the suction face side and direct it tangentially in relation to th... | 01/23/1996 |
| 5445098 | Luff guiding device and in particular for a sail to be wound on the boom Luff guiding device for a sail, the sail being able to be wound on a boom of a sail boat, comprising a first element including a continuous groove in which a luff of a sail is engaged to freely circulate, the sail being able to be wound on a boom of a sai... | 08/29/1995 |
| 5231943 | Sail plan for sailing craft A plan for a sail of a sailing craft such as a sailboat, an iceboat and a land yacht having a hull. At least one mast is mounted on an end of the hull and the mast angles upwardly over the hull. A boom is pivotably mounted approximately amidships of the h... | 08/03/1993 |
| 5211123 | Sailboard An improved sailboard in which the sail assembly is mounted to the board in a manner to allow pivoting about an axis inclined rearwardly and also about a horizontal pivot pin. The sail assembly is supported from a shaft secured in the board and having an ... | 05/18/1993 |
| 5197401 | Rotating ring mast sailing vessel and a method of vessel operation A system for powering a water vessel having as its principal components rectangular sails secured to a rectangular frame which in turn is attached to an annular mast rotatably mounted on a plurality of supports rigidly affixed to the vessel. In a second s... | 03/30/1993 |
| 5120070 | Adjustable windmobile The adjustable windmobile allows the mobilist to maintain a stable center of gravity by manually adjusting both the seat and mast to their respective opposite sides when the direction of motion of the windmobile is reversed. Both the seat and mast base ar... | 06/09/1992 |
| 5119748 | Sailing system employing radial force sail A radial force sail (22) for propelling land or water craft includes a continuously curved anhedral section (24) having its tip portions interconnected with substantially rigid, dihedrally disposed struts (26) and (28) that converge towards each other and... | 06/09/1992 |
| 5076186 | Sailboat provided with an anti-heeling and support device A sailboat having a vertical mast supporting vertical sails thereon that extend vertically lengthwise of the mast, and a keel and a rudder. At the upper end of the mast a wing is connected, the wing comprising an arm fixed at one end to the framework of t... | 12/31/1991 |
| 4982679 | Wingsail flap torque equalization A deflection system for wingsail assemblies in which the deflection is performed by fluid operated cylinders that are inter connected in such a way that the wingsail element is moved by a co-operative push pull action from the annulus side of one cylinder... | 01/08/1991 |
| 4972789 | Mast for sailboats The invention concerns a mast for sailboats, apt to support two distinct sailcloths forming a wing sail. According to the invention, the mast comprises a tubular body which has a cross section divided in two parts by an axis transversal to the longitudina... | 11/27/1990 |
| 4945847 | Wingsail flap deflection system A method of operating a multi-element self-trimming sailset to assist deflection of the trailing element of the main thrust wing to either side of the leading element. The sailset is first rotated to reduce the moment of wind on the flap opposing deflecti... | 08/07/1990 |
| 4945845 | High-speed sailing craft A craft propelled by an inclined sail. Sail lift causes hull to be raised by rotating to windward about an outrigger borne by tandem surface boards, thus decreasing resistance.... | 08/07/1990 |
| 4936236 | Symmetrical sailboat with moment balancing rig A fully symmetrical sailboat includes a mechanism that balances the moment of a sailor on a boom against the force of the wind on the sail in such a way that the hull remains level. The sailboat comprises a hull with both lateral and longitudinal symmetry... | 06/26/1990 |
| 4770113 | Wingsail systems A wingsail arrangement comprises a thrust wing having an upright leading airfoil having a leading edge and a trailing edge and an upright trailing airfoil having a leading edge and a trailing edge. The leading edge of the trailing airfoil is positioned cl... | 09/13/1988 |
| 4704979 | Sail system A sail system for a sailboat having a stayed, non-rotatable mast includes first and second booms, a single sail suspended from said masthead, the sail having a shape such that, with the vertical midline of the sail positioned along the mast, a generally t... | 11/10/1987 |
| 4610213 | Pressure sensing on rigid sails Pressure tapping for rigid sails, the tappings (10, 11, 12, 15, 16) being located to either provide a stall warning or to enable tuning of the sailset to the desired operating angles. A particular flow-state sensitive stall warning device is also describe... | 09/09/1986 |
