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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7665411 | System and method for a tow-rope retraction device for watercraft A device used when towing a user with a watercraft includes a tow-rope and a tow-rope retraction device receiving the tow-rope. The tow-rope retraction device is configured to selectively retract the tow-rope so as to accelerate a user being towed by the watercraft ... | 02/23/2010 |
| RE40926 | Towing system and method for a water sports apparatus A system and method for towing a water sports apparatus over a body of water behind a towing vessel. The system includes a rider towline for coupling a rider of the water sports apparatus to the towing vessel. The rider towline includes a distal end adapted to the g... | 10/06/2009 |
| 7520236 | Elevated water sport tow extension apparatus An elevated tow device comprised of: first and second substantially vertical support members, each slidably and pivotally engaging a boat support structure on a lower end and forming an apex on an upper end, the height and width of which can be adjusted; a tether at... | 04/21/2009 |
| 7428879 | Tower flag actuator A safety device automatically raises and lowers a warning flag over a boat based on the tension applied to a line towed by the boat. For the device, the tow line is anchored to a tower mounted on the boat. Further, an arm is pivotably connected to the tower for move... | 09/30/2008 |
| 7415936 | Active steering for marine sources A seismic survey system includes a winch having a winch cable coupleable to a source array towable between two deflected lead-ins, a positioning system for determining a current position of the source array and a controller for adjusting the winch to modify the curr... | 08/26/2008 |
| 7404370 | Steerable diverter for towed seismic streamer arrays A paravane for a marine seismic survey system includes a float and at least one diverter operatively coupled to the float. The diverter is configured to redirect flow of water past the paravane with respect to a direction of motion of the paravane through water. The... | 07/29/2008 |
| 7392758 | Wake tower and method of making same An attractive wake tower assembly that can be readily pivotally mounted on powerboats of various constructions to enable the wake tower assembly to be pivoted from an upstanding to a lowered position. The wake tower assembly is of a high-strength, simple constructio... | 07/01/2008 |
| 7370599 | Multi-purpose boat tower A multi-purpose boat tower comprising a unitary device with discrete and integral components including a rigid frame cage mounted to a portion of the deck and transom of a boat, a horizontal platform removably mounted to the top of the rigid frame, a plurality of fo... | 05/13/2008 |
| 7353767 | Underwater recreation apparatus and method therefor An underwater recreation apparatus and method therefor. The apparatus allows a diver to explore varying water depths with a minimal amount of equipment and with manageable equipment. The apparatus also allows the diver to cover substantial distances with minimal phy... | 04/08/2008 |
| 7352073 | Ocean wave energy converter having an improved generator and ballast control The ocean wave energy converter uniquely includes a generator with a rotating inner rotor surrounded by a counter-rotating outer rotor for generating electricity. A reciprocating drive rod drives the inner rotor on the downstroke of the drive rod and the outer rotor... | 04/01/2008 |
| 7350755 | Watercraft accessory tower mount The watercraft accessory tower mount may be used for attachment of watercraft accessories to a watercraft tower structure. A clamp bracket may be attachable to a clamp base. An accessory attachment may have a rotational shaft disposed for insertion in a rotational a... | 04/01/2008 |
| 7350475 | Launch and recovery system A method and apparatus for launching and recovering an object by a host vessel while the host vessel is in motion. The recovery system utilizes a tethered capture system for connecting with the object and then directing the object to the host vessel where it is secu... | 04/01/2008 |
| 7340373 | Weight detecting apparatus for crane and crane having the same A weight detecting apparatus for a crane includes a base machine comprising a lower traveling body and an upper rotating body; weights mounted on this base machine; ID (identification) tags which are installed on the respective weights and in which ID information on... | 03/04/2008 |
| 7334808 | Tow device A tow device having a mounting bracket adapted for vehicle mounting, a spring-loaded bobbin, a hollow telescoping rod, a tow line, and a handle. The hollow telescoping rod, which can be automatically extended, has one end attached to the mounting bracket while the o... | 02/26/2008 |
| 7311056 | Pontoon float towable behind a watercraft An apparatus for towing cargo behind a watercraft that includes a floating assembly for towing behind the watercraft and comprising a frame and at least one floatation device mounted on the frame. The apparatus further includes a linking assembly mounted on the floa... | 12/25/2007 |
| 7309268 | Hovering inflatable towable water-sport device An inflatable towable device capable of both being towed across a surface and to hover over the surface is disclosed. The device includes an inflatable frame and a wing surface that extends across the bottom surface of the inflatable frame. The inflatable frame is a... | 12/18/2007 |
| 7303452 | Kayak paddle with safety light A kayak paddle safety lighting system incorporated into a kayak paddle that may serve as a set of illumination or running lights more effective than current deck mounted running lights. The lighting system includes an operational switch located in the handle of the ... | 12/04/2007 |
| 7302907 | Mounting system and method for rigidly attaching a water sports towing frame to a vessel A mounting system rigidly attaches a towing frame to a vessel deck, and includes a base having an arcuate top surface and a bottom surface conforming the deck. A joint member rigidly attached to the towing frame has an arcuate surface mating with the arcuate top sur... | 12/04/2007 |
| 7299761 | Water sport towing apparatus Wakeboarding performance is improved using a vessel which is fitted with a skeletal towing frame having spaced supports attached on opposite sides of the vessel while coupling upper extremities of the supports with a horizontal bridging portion, to which a tow rope ... | 11/27/2007 |
| 7263944 | Portable universal ski boat pylon A temporarily mounted towing device for towing a water sporter as part of a water sporting activity. An elongate towing member is stowed within a storage housing temporarily secured to the bottom of a watercraft. The storage housing extends upwardly from the bottom ... | 09/04/2007 |
| 7261607 | Hovering inflatable towable water-sport device An inflatable towable device capable of both being towed across a surface and to hover over the surface is disclosed. The device includes an inflatable frame and a wing surface that extends across the bottom surface of the inflatable frame. The inflatable frame is a... | 08/28/2007 |
| 7261611 | Aquatic surface skipping toy device The present invention relates to an aquatic toy device that is particularly adapted for skipping upon and across the irregular surface of a body of water. The aquatic surface skipping toy device may be used for recreation, sports, or exercise either by an individual... | 08/28/2007 |
| 7234408 | Water sport tow attachment with recoil A pivot is coupled to a water craft. A lever arm is pivotally coupled to the pivot at one end. A tow spool is coupled to the lever arm at an end opposite the pivot. The tow spool is configured to provide an attachment for a towline. A recoil device is coupled to the... | 06/26/2007 |
| 7232355 | Flying ski The present flying ski is designed to be towed behind a conventional powered watercraft with the rider in a seated position. The flying ski comprises an elongate board and a seat that extends generally perpendicular to and upward from the board to support the seated... | 06/19/2007 |
| 7225102 | Reel mechanism with watertight electronics module A fishing reel with an electronics module enclosed by an exterior housing of the fishing reel is disclosed. The electronics module provides a watertight environment for a plurality of circuits. The circuits are useful to perform a variety of functions, including but... | 05/29/2007 |
| 7221620 | Apparatus for seismic measurements An apparatus for three-dimensional single-channel seismic measurements, wherein at least one seismic source and hydrophone devices are towed behind a vessel, and a pair of submerged deflectors are used and which, as the vessel moves, seek to move in a direction tran... | 05/22/2007 |
| 7219617 | Wake tower and method of making same An attractive wake tower assembly of a unique, generally U-Shaped configuration that can be readily pivotally mounted on powerboats of various constructions to enable the wake tower assembly to be pivoted from an upstanding to a lowered position. The wake tower asse... | 05/22/2007 |
| 7216604 | Retractable arch system for a boat A retractable arch system for a boat is provided that includes at least four substantially vertical legs for permanent installation on the boat. A first traverse member forms a first arch and is removably coupled by first and second separable couplings to two of the... | 05/15/2007 |
| 7182294 | Kite surfing bar An apparatus for controlling movement of a flying device, such as a kite. In controlling such movement, the apparatus comprises a series of force transmitting members associated with a control bar to be grasped by an operator. Such association minimizes interference... | 02/27/2007 |
| 7178475 | High maneuverability towcraft A maneuverable towcraft consisting of a partial hull structure to which is removably attached at least three downward-projecting fins. A first ventral fin of sufficient size and draft is located along the craft's centerline, toward the front of the craft. A second a... | 02/20/2007 |
| 7165502 | Trawling vessel with a lock chamber A trawling vessel is provided with a trawl net (5) for catching marine bio-resources, with a trawl sack (3) attached aft on a trawl net (5) for keeping the catch. The vessel comprises lines (51, 61) for towing and hauling the trawl net ( | 01/23/2007 |
| 7167412 | Apparatus for steering a marine seismic streamer via controlled bending A marine seismic streamer steering device comprises at least two hinged sections pivotally coupled to each other and connected between two adjacent sections of the seismic streamer, and a bend control unit that controls bending of the hinged sections relative to the... | 01/23/2007 |
| 7156036 | Launch and recovery system The launch and recovery system provides a dive wing and drogue assembly that is towed behind a ship by cables. The dive wing imparts a downward thrust to the drogue, so that the drogue is towed underwater, placing tension on the cables. The cables become stiff due t... | 01/02/2007 |
| 7146922 | Towline fuse and strain energy dissipation device A towline fuse device for use in a towing system with a towing vehicle and a towline is provided. The towline fuse device comprises a fuse mechanism for failing at a predetermined level of tensile force, the fuse mechanism mounted between the towing vehicle and the ... | 12/12/2006 |
| 7128014 | Watercraft compensation system A watercraft is disclosed that includes a hull, a deck supported by the hull, a propulsion system that is mounted to at least one of the hull and the deck, and a helm that is connected to the deck and configured to control the direction of the watercraft. A pole is ... | 10/31/2006 |
| 7114457 | Wakeboard jump enhancement system A jump enhancement system is provided for use while riding upon a water or snow planing apparatus towed behind a boat or snowmobile. The system includes an aerodynamic lift generator, such as a parachute, coupled to the user. Most preferably, a flotation or padded/i... | 10/03/2006 |
| 7097523 | Flying ski The present flying ski is designed to be towed behind a conventional powered watercraft by a standard ski tow rope or similar device having a handle that can be held by a human rider. In use, the rider is seated on the seat of the flying ski and towed by the watercr... | 08/29/2006 |
| 7065918 | Weighted fishing leader drag apparatus A weighted fishing leader drag apparatus is in the form of an elongated hydrodynamically shaped body having a plurality of resilient wings mounted to its outer surface. When the leader drag apparatus is pulled in the opposite direction of the water current, the wing... | 06/27/2006 |
| 7059264 | Water craft safety signal system A safety system includes a signal flag that is mounted on a water craft and which is connected to a person in a manner such that should the person fall into the water, the signal flag will be automatically and immediately deployed whereby any watercraft in the vicin... | 06/13/2006 |
| 7047898 | System for controlling streamers System for controlling cables and streamers in a seismic tow arrangement comprising at least one deflector (13) connected to one side of a tow vessel (10) via at least one wire (12), leading or the like, wherein the deflector is located in a pos... | 05/23/2006 |