Matches 1 - 50 out of 222 1 2 3 4 5 >
Match Document Document Title
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...
7347158 Safety system for scuba divers operating underwater propulsion devices  
A safety system for underwater propulsion devices operated by scuba divers includes sensors that detect the vertical velocity of the device. If the descent or ascent is greater than 60 feet per...
7329160 Motorized watercraft  
A motorized watercraft with a hull of the craft on which a user lies prone, at least partially, or stands up, with a flow channel extending in the hull of the craft with an electric motor-driven...
7328669 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...
7270074 Diver propulsion system with separate battery and motor-transmission modules  
A diver propulsion system includes separate battery and motor-transmission modules.
7258301 Personal propulsion device  
The present invention provides a personal propulsion device including a body unit having a center of gravity, where the body unit includes a thrust assembly providing a main conduit in fluid...
7159528 Snorkel apparatus and methods of use  
Disclosed is an apparatus and methods for a plurality of users to work and/or play underwater with a supply of breathable air. The breathable air is taken from the atmosphere above the surface of...
7152548 Boat with dive elevator  
A boat comprises an elevator and a boat hull having a deck and defining a dive opening. The dive opening extends vertically from the deck to the water and defines an enclosed passageway having...
7124701 Propulsion system for scuba diver  
Electric Propulsion system supported by a special usable harness slinging from scuba divers, deep-sea divers or simple swimmers, advantageously fed by a sophisticated system of rechargeable...
7096815 Underwater scooter  
An underwater scooter including a main frame on which are disposed two air tanks serving as a saddle area for the operator, a depth adjusting mechanism disposed to the fore of the air tanks, and a...
7093554 Easy access power supply underwater motive device  
An underwater motive device provides an integrated front cone and handle assembly with a mechanical link between the front cone and handle assembly to the main body of the unit which includes the...
7011035 Underwater scooter  
An underwater scooter includes a watertight vessel enclosing an engine disposed in the fore part of a cylindrically shaped main frame, a propeller disposed in the aft area, and a driveshaft passes...
7004099 Hybrid-powered underwater scooter  
An underwater scooter is provided with an engine enclosed in a watertight vessel and an electric motor enclosed in the watertight vessel and connected to the output shaft of the engine, and a...
7000559 Modularized underwater motive device  
An underwater motive device provides an integrated and modular battery and motive housing which is carried within an outer housing and secured by a nose cone system. The nose cone system works...
6990919 Attachment to a sea scooter  
The attachment to a sea scooter is a device that allows for safer, more stable use of a sea scooter. The central component of the attachment to a sea scooter is a clamp having a split ring to...
6976445 Submarine  
A submarine is comprised of a hull with an external seat on top and a backrest behind the seat. A control column and a grab handle are positioned in front of the seat. External drive motors...
6962123 Underwater maneuvering device  
An underwater maneuvering device is disclosed. It utilizes a horizontal planar member, a perpendicularly disposed fin member, hand grip portions, and a towing bridle, pulley and towline assembly...
6935912 Self-contained, emergency marker for attaching to, and selectively ascending from, a diver's buoyancy control device  
A self-contained, emergency marker for attaching to, and selectively ascending from, a scuba diver's buoyancy control device. A buoy portion is contained in an enclosure and is selectively released...
6860770 Method and device for low-noise underwater propulsion and for reducing hull drag  
A method and apparatus is disclosed for producing propulsion underwater with minimal acoustical emission. In basic concept, the method comprises the expulsion and sucking of liquid into and out of...
6848385 Underwater motive device  
An underwater motive device utilizes a plastic rear housing which includes a battery storage space sealed with a tight fit to provide sealing, a pressured removal system is provided to pressurize...
6823813 Leg-mounted propulsion device for swimmers and divers  
An electric motorized propulsion system ( 10 ) for swimmers and divers ( 12 ) includes pair of leg-mounted propulsion units ( 14 ), each containing sealed electric motors ( 12 ), propellers ( 22 ),...
6789587 Method and apparatus for underwater tree cutting and retrieval  
The invention relates to an apparatus and method for cutting submerged trees at an underwater logging site and for retrieving the cut trees. Once cut, each tree is retrieved to the water surface by...
6784559 Fluid pressure regulator assembly with dual axis electrical generator  
A fluid pressure regulator assembly is provided for generating power from a pressurized fluid. A vane motor is coupled between a high-pressure fluid source and a regulator, to extract power from...
6749370 Buoyancy compensating jacket  
A buoyancy compensating jacket is provided on a waist portion with a pocket having a first flap, a pouch having a flat cord adapted to be inserted into and taken out from the pocket with a weight...
6748894 Submersible marine vehicle  
The present invention generally includes a submersible marine vehicle for recreational use in which a propeller and motor assembly is disposed within the vehicle's hull and a battery is disposed...
6722819 Device for operating inflation and deflation valves of an air chamber of a scuba diver's balancing jacket  
A device is provided for operating inflation and deflation valves of an air chamber of a scuba diver's balancing jacket. The device comprises inflation and deflation valves and a push-button for...
6694911 Enhanced display- underwater combat swim board  
An underwater swim board enables diver navigation under conditions of zero visibility. A rectangular member has a timer, depth gauge, and compass on its topside to provide a visual indication of...
6682372 Motorized watercraft  
A motorized watercraft having a hull on which the user can lie or stand wherein a flow channel is provided with an engine-driven water screw. The electric engine, batteries and control device for...
6670735 Weight release mechanism for underwater object  
A weight release mechanism for an underwater object. Through a detachable latching mechanism between the underwater object and a heavy block and a set of control circuits, the underwater object may...
6665789 Surface or underwater dive vehicle  
An electric motor for powering a submersible vehicle under water is disclosed. The motor has a housing with resilient seals for resisting the passage into the housing and motor of surrounding...
6647912 Underwater traveling craft  
An under water vehicle pulls its user with a motor driven propeller at the front end with the user holding on to the vehicle and steering it from the rear end. The hollow vehicle body has inner and...
6615761 Swimmer transport device  
A self-propelled underwater transport vehicle provides propulsion for one or more divers to allow submerged travel over extended distances. The vehicle has a cylindrical open hull supporting a deck...
6612254 Towable underwater kite  
In a device for towing riders on or through the water it is known to have planar board(s) or wing(s). In this invention, there are two independently operated symmetrical wings hinged to wing...
6606960 SCUBA diver fairing  
A protective fairing encloses the head and torso of a SCUBA diver wearing diving equipment, with clearance throughout. A viewing shell section of the fairing covering the diver head is attached to...
6575114 Human controlled towable device for water surface and subsurface operation  
A device for use in human controlled water surface and subsurface travel includes a towbar having first and second end portions. The device includes a first control member that is rotatably coupled...
6572422 Tail assembly for an underwater vehicle  
An assembly for an underwater vehicle that includes a motor, a duct assembly, and an actuator. The duct assembly includes a duct and a propeller mounted within the duct, where the propeller is...
6561116 Towable sub-aqua device  
There is disclosed an improved sub-aqua device suitable for towing a person through the water. Specifically there is disclosed a sub-aqua device including: a support member; a pair of manoeuvring...
6524145 Swimmer propulsion device  
A swimmer propulsion device includes a harness with attached frame and resilient tail assembly. A foot-operated driver on the frame rotates and forces an apex member against the fluked tail...
6461204 Swimming assistance apparatus  
A swimming assistance apparatus according to the present invention includes a base combined with a human body and a motor-driven pump provided in a base. The motor-driven pump has a water inlet and...
6443087 Underwater dive vehicle  
The underwater vehicle disclosed has a selectively energizable propulsion unit for forcible driving the vehicle through the water and at least one resilient gas filled buoyancy element and at least...
6375530 Whaletail swimming device  
A flexible elongate support ( 1 ) communicating a singular pliable tailfin ( 2 ) at an end is made to flap by upward and downward force from a swimmer's legs and midsection, thereby propelling the...
6341993 Motorized swim fin  
The present invention comprise a swim fin having an internal propulsion system, wherein the fin is secured to the wearer by a boot configured to surround the foot and ankle of the wearer resisting...
6319079 Amphibious robot mine locator  
The amphibious robot mine locator may be used in water-based and land-based environments to locate mines and other hazards. In a water-based environment a diver controls movement of the amphibious...
6318284 Method and installation for carrying out operations under water with a crane on a fixed pontoon  
Method for carrying out operations under water by means of a crane (3) equipped with a tool which is erected on a pontoon (1) which has been fixed and which can be jacked up, wherein an underwater...
6250977 Compressed-air-powered immersible prime mover providing impulse propulsion to pool cleaners, trolling boats, and scuba divers  
An immersed prime mover device, typically of some few cubic inches or feet in volume, cyclically vents accumulated compressed air, typically 10-200 P.S.I. and more typically 90-110 P.S.I. derived...
6174209 Amphibious robot mine locator  
The amphibious robot mine locator may be used in water-based and land-based environments to locate mines and other hazards. In a water-based environment a diver controls movement of the amphibious...
6162106 Inflatable flag buoy workable in both the daytime and the night  
An inflatable flag buoy for divers including a buoyant seat and a flag body in the form of two air chambers separated by a transparent interface. The buoyant seat is further divided into an upper...
6145462 Towable diver aid  
A divers transportation assistance device includes a support platform pivotally mounted within a rigid linking frame. An included tow rope attachment assembly allows the device to be linked to a...
6079348 Diving apparatus and method for its production  
A diving apparatus includes an elongated hollow body which can completely accommodate a human body extending in the longitudinal direction of the hollow body but which differs from the external...
6065419 Underwater dive vehicle  
The underwater dive vehicle disclosed has a selectively energizable propulsion unit for forcible driving the vehicle through the water and at least one resilient gas filled buoyancy element which...
Matches 1 - 50 out of 222 1 2 3 4 5 >