Class / Patent application number | Description | Number of patent applications / Date published |
114315000 | Diver assistance device | 15 |
20090044742 | BUOYANCY-BASED, UNDERWATER PROPULSION SYSTEM AND METHOD - An apparatus for underwater propulsion. The apparatus may include a hydrofoil, a buoyancy compensator connected to the hydrofoil, a tank containing air, and a controller regulating the passage of air from the tank into the buoyancy compensator. The controller may also regulate the escape of air from the buoyancy compensator. By positioning the hydrofoil underwater and alternating between positive and negative angles of attack, a diver may generate forward propulsion by manipulating the controller to correspondingly alternate the buoyant force produced by the buoyancy compensator between levels below and above neutral buoyancy. | 02-19-2009 |
20090056613 | Diver propulsion system with separate battery and motor-transmission modules - A diver propulsion system includes separate operatively associated battery, motor, transmission, and clutch modules. | 03-05-2009 |
20090217859 | TOWABLE UNDERWATER CRAFT - A towable underwater craft includes a main body contoured to support the rider in the prone position, a contoured leading edge, left and right arm guards, left and right independently actuated hydrofoils and a tow rope. The majority of the craft is constructed from a foam core and a fiber-reinforced polymer exterior to provide the required buoyancy and strength. The tow rope is attached at one end to a powered water craft and to the craft at the opposite end. The pitch of the left and right hydrofoils are controlled independently by the rider. This actuation controls both the depth and roll of the craft enabling the rider to fully control the craft below the surface of the water while being towed. | 09-03-2009 |
20090249991 | Personal Dive Device with Electronic Speed Control - A personal dive device includes a body having a power source that is disposed in the body with a voltage of the power source being greater than or equal to about 37 volts. A controller is in electrical communication with the power source. A rotary device is in selective electrical communication with the controller and a propeller assembly is engaged with the rotary device. A method for controlling the speed of a personal dive device includes providing a personal dive device having a power source disposed within a body and an electronic controller. A signal from a trigger mechanism is received. An effective power output from the power source is varied based on the signal from the trigger mechanism. The effective power output from the power source is provided to a rotary device that is in selective electrical communication with the electronic controller. | 10-08-2009 |
20100126405 | Diver propulsion system with separate battery and motor-transmission modules - A diver propulsion system includes separate operatively associated battery, motor, transmission, and clutch modules and a separable bracket plate and bracket base that facilitates both storage of a propulsion unit and mounting the propulsion unit on the tank of a scuba diver. | 05-27-2010 |
20100212571 | DIVER-PROPULSION UNITS - A diver-propulsion unit | 08-26-2010 |
20100236467 | UNDERWATER DIVE PLANE - An underwater dive plane includes a central rotating hub, rotating wing holders on either side of the central rotating hub, and wings attached to the wing holders. The attachment is accomplished by a threaded bolt inserted through the center of the central rotating hub and through the center of the wing holders in a way that permits the wing holders to rotate around the threaded bolt. A rope threaded through a hole in the central rotating hub leads to a watercraft and allows towing a person holding onto the dive plane. The rotating wings allow the diver to control the angle and direction of the dive. | 09-23-2010 |
20110174209 | UNDERWATER PERSONAL PROPULSION DEVICE - The underwater personal propulsion device is placed between the diver's lower legs to allow hands-free operation of the device by the diver. The device includes a pair of footrests extending laterally from its lower end, and a pair of braces or pads extending from the sides of the device to allow the diver to brace the device between his or her lower legs. A series of straps, e.g., bungee cords, extend from the upper end of the device to the diver's waist belt, e.g., the conventional weight belt, or to attachments or straps extending therefrom. Power control is provided by a controller installed on the diver's belt or, alternatively, by a foot or lower leg control. The device is easily aimed or steered by manipulation of the diver's legs, thereby allowing the diver to maneuver while his or her hands remain free for other operations. | 07-21-2011 |
20130061793 | UNDERWATER DIVER GLIDER - An underwater diver glider includes: a body having a nose and a tail, opposed left and right sides, and spaced-apart upper and lower walls, the body including: an interior space defined between the upper and lower walls that is configured to contain a gas vessel therein; an air chamber defined in an upper portion of the body beneath the upper wall; and an outlet positioned in the body near the tail and below the upper wall, in communication with the air chamber; a pair of wings extending from left and right sides of the body, respectively; and a handle extending axially aft from the body. | 03-14-2013 |
20130291781 | PERSONAL UNDERWATER VEHICLE - An underwater personal vehicle that as twin battery powered motors affixed to a central body. The propellers preferably counter-rotate and are in shrouds to allow true tracking without stabilizing fins. The operator holds onto the device and controls it from handles on the aft end of the central body. A light and supplemental ballast tubes are available. The thrust produced by the motors is at approximately the center of mass of the vehicle to further stabilize it during motion. | 11-07-2013 |
20140190389 | UNDERWATER PERSONAL MOBILITY DEVICE WITH ON-BOARD OXYGEN - An underwater personal mobility device is provided. The underwater personal mobility device can include a lower section rotatably connected to a main body comprised of an observation chamber. The device may have at least two configurations, including a folded configuration, to enable ease of transport and storage of the device. | 07-10-2014 |
20140338583 | Underwater Man-powered Mechanical Propeller - An underwater man-powered mechanical propeller includes a screw propeller arranged on a screw propeller shaft, the screw propeller is provided with a first bevel gear arranged at the back part thereof, and is provided with a concentric protective ring on the outer side; one side of the protective ring is provided with a supporting plate; the supporting plate is provided with a first gear and a second gear meshed with each other, and a transitional gear is also arranged thereon and forming a meshing pair together with the second gear; the drive shaft of the transitional gear penetrates through the supporting plate, and one end thereof located in the protective ring is provided with a second bevel gear. The first gear is connected to a first connecting rod, the second gear is connected to a second connecting rod; and the screw propeller shaft is provided with a one-way flywheel thereon. The present invention utilizes the mechanical drive principle to convert the physical power into high-efficiency driving motion powers, and realizes a high swim speed without excessive consumption of physical energy. | 11-20-2014 |
20150047548 | HAND-HELD UNDERWATER PROPULSION SYSTEM - The invention generally relates to hand-held underwater propulsion systems. In certain embodiments, systems of the invention include a hand-held body having a water-tight compartment. There is a motor housed within the water-tight compartment. There are a plurality of propeller blades located at a front portion of the body and coupled to the motor. Each blade includes a retracted configuration and a deployed configuration, and in the deployed configuration, the blades are biased away from the body. | 02-19-2015 |
20150336650 | COUPLING PROVISIONS FOR DIVER PROPULSION VEHICLE - An arrangement comprises: | 11-26-2015 |
20150353175 | WATERCRAFT WITH FLOODING CHAMBER - A watercraft comprises a hull which has a flow channel and a motor-operated water accelerating arrangement paired with the flow channel. The aim of the disclosure is to allow a dynamic manner of travel, in particular a quick changeover between surface travel and submerged travel, using such a watercraft. According to the disclosure, this is achieved in that the hull has a flooding chamber which is connected to the surroundings via water inlet and water outlet openings. | 12-10-2015 |