Bizarre Patents
A simulation environment for the sport of boxing utilizing a robotic machine interface system which carries a person.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8166898 | Wind-powered personal hydrofoil watercraft A personal wind-powered hydrofoil watercraft having a sail supported by a mast coupled to a buoyant body, where the mast is tiltable forward and backward but not side to side, in order to prevent excessive rolling of the buoyant body when it is lifted clear of the w... | 05/01/2012 |
| 7370593 | Windsurfing catamaran vessel An improved windsurfing catamaran type vessel. The illustrated vessel has an improved steering mechanism that includes a relatively stiff but bendable plastic rod that is directly received within one or more guiding passageways or grooves formed in the plastic hull ... | 05/13/2008 |
| 7251592 | Boundary layer transition model A method for analyzing performance of an airfoil includes determining: an estimated laminar separation location; a freestream turbulence intensity; a momentum thickness; and a turbulence length scale. Based upon the freestream turbulence intensity, momentum thicknes... | 07/31/2007 |
| 7144285 | Hydrofoil surfing board A wave riding surfing board with a pair of transversely oriented hydrofoils, each attached to respective front and rear struts, for supporting a surfer in a prone or kneeling position. In operation, the front canard hydrofoil is arranged for piercing the surface of ... | 12/05/2006 |
| 7128010 | CBTF sailing yacht appendage retraction system A canting ballast twin foil (CBTF) sailing yacht constructed according to the invention includes a sailing hull, a laterally moveable ballast suspended beneath the hull that provides a counter heeling force when the yacht is underway, and fore and aft foils that pro... | 10/31/2006 |
| 7108571 | Method and apparatus for attaching a fin to a small watercraft Apparatus is provided for attaching a fin to the underside of a small watercraft, such as a surfboard. The apparatus includes a holder which is attachable to the underside of the surfboard, so that a recess defined in the holder extends inwardly from the underside. ... | 09/19/2006 |
| 7108572 | Sailboard with multiple skegs A sailboard has a pair of skegs extending downwardly from a bottom surface thereof generally adjacent a rear of the sailboard. The pair of fins extend in a vertical orientation parallel to a centerline of the sailboard. A retractable fin is mounted adjacent the rear... | 09/19/2006 |
| 7090236 | Mounting system, sail, steering mechanism and frame for a landsailer A mounting system for a boom (14) of a landsailer (1) includes a resilient flexible member (12), at one end engageable with a rearward portion of the landsailer frame (2) and at the other end with the main sheet (13). A steering me... | 08/15/2006 |
| 7018252 | Watercraft control mechanism A watercraft includes a watercraft control mechanism that is capable of steering, decelerating, and/or trimming a watercraft without causing the stern to elevate and the bow to dive; steers or assists steering in off-power situations; steers, trims and/or decelerate... | 03/28/2006 |
| 6935909 | Apparatus and method for a gliding board for fluid riding sports A curved lower surface of a gliding board, such as a wakeboard or a surfboard, is provided with an anticlastic shape to resemble the shape of a saddle. The lower surface of the board is concave in a transverse cross section and convex in a longitudinal cross section... | 08/30/2005 |
| 6916220 | Removable fin system A pivotal fin system, for use with an aquafoil, such as surfboards, body boards, wave skis, sail boards, wake boards and the like, comprising a pot (3) and a fin (2), having a tab (18) extending from the base (17) of the fin (2). T... | 07/12/2005 |
| 6821173 | Removable and adjustable surf fin system A fin plug assembly to receive and engage a fin includes a cavity, a cam with gears, and a worm gear. The fin plug assembly allows a quick and easy fore-aft adjustment of the fin. Disclosed also is a method of installing the fin plug assembly in a surfboard using a ... | 11/23/2004 |
| 6789489 | Sailboat with gimbaled mast and keel A modified mast and keel system for a sailing vessel. The mast is gimbaled to the hull, so that it can move in a pitch roll. A downward extension of the mast pivotally connects to a winged keel. An aft strut also pivotally connects to the hull and pivotally connects... | 09/14/2004 |
| 6767266 | Stabilizing element for use on mobile devices A stabilizer for a mobile device includes a first element that has a center-plane and an upper end for attachment to a bottom surface of the mobile device. The stabilizer also has a hollow tubular element that has a center-plane. The hollow tubular element is connec... | 07/27/2004 |
| 6746292 | Bottom fin for a watersports board A bottom fin for a watersports board such as a surfboard or a windsurfer board. It has an upper body portion having a leading edge that extends downwardly and rearwardly from its front end. The bottom fin also has a lower body portion having a leading edge that exte... | 06/08/2004 |
| 6739925 | Hydrodynamic device A hydrodynamic device for use with a recreational water vessel such as a surfboard, disrupts a flow of water under the recreational water vessel. A channel member (12) and a fixing device (14) are attachable to an underside of the recreational water ve... | 05/25/2004 |
| 6386933 | Enhanced customizable surfboards with adjustable fins and methods for making the same A surfboard includes a body, a fin, a chamber disposed in the body, and a fastener. The fin is receivable in the chamber and projects from the body at a cant when received in the chamber. The chamber and the fastener may be components of a fin box dispose... | 05/14/2002 |
| 6379204 | Stabilizing element for use on mobile devices A foil having a stabilizing hollow element, the entire foil forming a wing- or fin-like shape. The hollow element may also have a leading edge that tapers to a defined point. The hollow element may also have a foil shape, running substantially parallel to... | 04/30/2002 |
| 6139383 | Fin assembly A fin assembly [10] is provided for detachably removing a fin [12] in a surfboard [13]. The fin [12] has a mounting base [26] and spigots [22 and 23] projecting from front and rear positions on the base [26]. A socket mounting [11] defining at least compl... | 10/31/2000 |
| 6135837 | Water sports board A water sports board for use in supporting a person riding along on the top surface of the water. The elongated buoyant board has an elongated slot in its bottom surface for each of its fins. The fins are removably received in the elongated slots when the... | 10/24/2000 |
| 6106346 | Stabilizing fin for a water planing device The stabilizing fin includes an upper vertical stabilizer element, a hollow tubular element, and a lower vertical stabilizer element. The upper vertical stabilizer element has an upper end for attachment to a bottom surface of a water planing device. The ... | 08/22/2000 |
| 6032600 | Weighted daggerboard stabilizer for wind surfing apparatus A wind surfing apparatus formed with a hull supporting a mast and sail includes a removable daggerboard having a weighted mass in a lower end portion thereof to lessen the tendency of the hull to be unstable or flip during use. The weighted mass may eithe... | 03/07/2000 |
| 5873588 | Assembled sail powered vehicle An assembled sail powered vehicle, including: a sail; a frame for supporting the sail, the frame including a plurality of elongated rigid frame members, a plurality of joint assemblies releasably captured between the ends of respective of the frame member... | 02/23/1999 |
| 5533462 | Keel arrangement for sailboat hull The invention provides an improvement in a keel arrangement for a sailboat hull, of the kind having an elongated ballast member spaced below the hull so as normally to extend horizontally and fore-and-aft under the hull, and a front foil and a rear foil d... | 07/09/1996 |
| 5471942 | Hydrofoil sailboard with supercavitating canard hydrofoil Canard configured hydrofoil sailboards which are normally operated rolled to windward and without yaw and which employ a canard hydrofoil that tracks the water surface are of proven practicality. The present hydrofoil sailboard improves on previous design... | 12/05/1995 |
| 5409408 | Sailboard with reciprocating fins and umbrella type rotary parafoil sail The windsurf board comprise a revolving sail, reciprocating fins and single sided pedal. The revolving sail rotates a drum to drive the reciprocating fin. On the drum, there are multiple cycles of slot knotched on the drum. One revolution of revolving sai... | 04/25/1995 |
| 5309859 | Hydrofoil device A hydrofoil sailboard comprising a conventional sailboard, without the usual tail skeg, equipped with two hydrofoils arrayed in a canard configuration, the combined lift of the foils being sufficient to hold the board clear of the water at operational spe... | 05/10/1994 |
| 5280760 | Sailing craft A sailboat apparatus includes a hull having a bottom, bow and stern portions along with a central portion and at least one mast for supporting a sail extending above the hull. The mast is mounted to the hull for side-to-side movement relative to the hull.... | 01/25/1994 |
| 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 |
| 5195444 | Sailboard The present invention relates to an apparatus designed to launch a sailboard out of the water while the sailboard is being sailed on the water. The apparatus comprises launching means including a flap which is submergible in the water and pivotally suppor... | 03/23/1993 |
| 5176091 | Sailboard pontoon and mast rigging assembly A pontoon and mast rigging assembly for a sailboard. Four pontoons are arranged laterally about the sailboard hull and attached thereto by means of individual outriggers. Individual elastic straps interconnect each pontoon with a mast top mounted above an... | 01/05/1993 |
| 5148761 | Daggerfin adjustable sailboard skeg A wind propelled sailing apparatus having a sailboard hull adapted to support a user; a sail for propulsion of the sailboard hull and adapted to receive wind for motive power; a skeg positioned and oriented in a rear central portion of the sailboard hull,... | 09/22/1992 |
| 5143008 | Sailboard A windsurfing board or sailboard is shown having a dash for supporting a sailboarder and an improved rudder gear assembly. The dash projects upward from the sailboard and is positioned such that the sailboarder may prop his shins against the dash for supp... | 09/01/1992 |
| 5133681 | Frangible sailboard fin retaining member A frangible sailboard fin retainer and method of releasably retaining a fin to a sailboard fin box including forming complementary openings in the fin and the fin box, inserting a bolt assembly having a bolt and a threaded female threaded member joining t... | 07/28/1992 |
| 5129344 | Actuating mechanism An actuating mechanism is provided for controlling external devices by means of coaxial actuating cables or other suitable linkages. The actuator includes an internal slide element movable to selected detent positions by means of a lever arm which pushes ... | 07/14/1992 |
| 5048440 | Sailing apparatus A sailing apparatus includes a sail having a batten which is positioned relative to the mast by a coupling member which serves to induce a camber in the batten and enhance and stabilize the draft or curvature of the sail. The coupling member can be instal... | 09/17/1991 |
| 5038698 | Daggerfin adjustable sailboard skeg A wind propelled sailing apparatus having a sailboard hull adapted to support a user; a sail for propulsion of the sailboard hull and adapted to receive wind for motive power; a skeg positioned and oriented in a rear central portion of the sailboard hull,... | 08/13/1991 |
| 4998494 | Device for enhancing the buoyancy of sailboards and the like The bow portion of a sailbaord is insertable into a pocket at the underside of an inflatable delta-shaped hull having a width exceeding that of the sailboard. This results in a boat which is capable of supporting several persons. The stern portion of the ... | 03/12/1991 |
| 4924791 | Adjustable sailboard A sailboard including hull, mast and rigged sail assembly and a foot operated rudder pivotally and rotatably mounted to the stern of the hull, with the rudder being adjustable longitudinally to the different heights of sailboard users while maintaining th... | 05/15/1990 |
| 4922845 | Boom for a sailing device A multi-level boom adapted for use on a sailing device such as a sailboard. The boom comprises a lower portion in a wishbone type shape having a forward end adapted to be secured to a mast and an aft end adapted for securing the clew of a sail to the boom... | 05/08/1990 |
