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7191721 |
Innovative hull-less naval vessel
A hull-less naval vessel includes a platform completely raised from the liquid medium by of rotating floating elements fixed beneath the platform by of ball bearings. Through the lifting effect of...
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5669858 |
Portable inflatable structure
An inflatable structure having a trampoline-type floor with an inflatable framework projecting upwardly therefrom and having netting panels extending between adjacent portions of said framework to...
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5592894 |
Spidercraft
A spidercraft supported by a wave rider pod consisting of very large tires and ground effect wings connected to a suspension system to absorb the shocks from planing over rough seas or rolling over...
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5417598 |
Inflatable paddle wheel life saving device
A life saving device which permits controlled movement by a user through the water comprising a pair of inflatable tubular paddle wheels having a plurality of rigid bars connecting the wheels. A...
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5294187 |
Wheel usable on ground, water, and snow
A hollow wheel is rotatively mounted on a vehicle about an axis of rotation defining an acute angle with the vertical. This wheel comprises a first convex side wall having an outer face defining a...
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5178088 |
Amphibious vehicle
An amphibious vehicle has a hull with a seat portion formed on its upper side. An operator seated upon the seat would straddle the hull. The hull has a flotation body for buoyancy and four hollow,...
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5149118 |
All-terrain wheelchair
An all-terrain wheelchair comprising a frame constructed of tubular air-filled frame members to enable the wheelchair to be amphibious. A pair of rear drive wheels are rotatably mounted on the rear...
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5013269 |
Modular navigation vessel equipped with rotating floats
A modular navigation vessel having rotating floats includes a forward module ending in a stem, a central module in the form of a caisson and a rear module, all three modules being ridigly assembled...
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4926777 |
Aquatic wheelchair
An aquatic wheelchair having a main flotation body of thermoplastic material of closed cell construction including a seat portion and an integral backrest portion. Flotation paddle wheels are...
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4857022 |
Amphibious vessel
An amphibious vessel has at least two substantially parallel, elongate flotation members (2, 3) which operate on water as hulls. Each flotation members (2, 3) is rotatable about a longitudinal axis...
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4842561 |
Aquatic vehicle
An aquatic vehicle for transporting passengers at high speeds over water, the vehicle having an elongated body with an enclosed cabin for accommodating passengers, wheels for sustaining the body...
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4655717 |
Vehicular sports device able to travel over firm surfaces, soft surfaces or liquid surfaces
A seatless pedal operated vehicular sports device capable of moving our firm surfaces, soft surfaces or liquid surfaces, comprises a seatless frame, a fork having downwardly extending prongs...
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4631037 |
Pontoon vehicle
A self-propelled pontoon aquatic vehicle is presented which comprises a central pontoon having a seat, pedals and steering mechanism thereon. Paddle wheels are located on either side of the pontoon...
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4505346 |
Rolling vehicle
A rolling vehicle having a generally spherical cage-like body with a diametrical axle on which a pod is suspended within the cage structure. The pod contains a propulsion unit which provides thrust...
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4432735 |
Human propelled buoyant annular float with removable pontoon stabilizer
A buoyant apparatus for transport or amusement which is propelled by a human operator in a standing position. An annular float has a platform secured to its upper side and a plurality of...
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4395237 |
Amphibious bicycle
An amphibious vehicle comprises a bicycle wherein the ends of the front wheel shaft and the rear wheel hub shaft are laterally outwardly projected; a water-surface floating apparatus composed of...
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4379701 |
Buoyant apparatus propelled by a human operator
A buoyant apparatus propelled by a human operator has a pair of side by side annular floats and a pontoon rotatably mounted at the corners of a triangular frame. A pair of platforms are each...
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4348195 |
Multiple step vented hull
A boat hull is provided with a series of steps which are angled toward the center of the hull from the front to the rear of the hull. In order to permit easy riding up of the hull on the steps...
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4273544 |
Aquatic recreational vehicles
A recreational vehicle for transporting one or more riders upon a body of water with power supplied by the rider(s) to both a pair of front and a pair of rear wheels which have sufficient buoyancy...
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4154188 |
Recreational device
A recreational device consisting of two annular members and a plurality of circumferentially spaced cross members secured one at each end to the annular members to form a floatation wheel having...
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3953024 |
Water tumbler and roller float
A hollow semi-rigid cigar-shaped float formed with helical external projections in the form of two corkscrew threads for use in water sport. Each corkscrew thread projection is formed from the...
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3934291 |
Water sports wheel
A unitary hollow paddle wheel of a size to receive a person in upright position and composed of two circular pneumatic tubes connected in spaced relation by transverse members that also support a...
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3933115 |
Spherical rolling hull marine vessel
A marine vessel with a spherical rolling hull having a rotatably mounted shaft disposed through the horizontal poles of the sphere. A frame assembly is rigidly fixed to the shaft on the interior of...
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3806156 |
ROLLING VEHICULAR TOY
A spherical inflated device to be used as a rolling toy, with an internal spherical seating section connected to the exterior of the device by one or more cylindrical passage holes. Handholds are...
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3628491 |
WATER-WALKING DEVICE
A floating water-walking device has a horizontal cylindrical tread portion joined at its opposite ends to a pair of paddle wheels coaxial with it. Each of the wheels have circumferentially spaced...
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3580213 |
SWIMMING PADDLES
A shaft has oppositely extending offset portions at opposite ends, each portion being connected to a corresponding flotation paddle. Straps secure the shaft rotatably to a user in water. The user,...
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3580528 |
MANEUVERING UNIT
A hand-held device for propelling an individual through space wherein pressurized fluid is selectively and individually discharged from oppositely directed coplanar nozzles in response to movement...
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3606856 |
CYCLO AMPHIBIOUS
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3605296 |
AMPHIBIOUS DITCH EXCAVATOR
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3335692 |
Watercraft
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3310020 |
Apparatus for propelling buoyant vehicles
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3298348 |
Marine vehicle with rolling buoyant supports
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3266453 |
Motorized pack carrier
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3202124 |
Navigational vehicles
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3107643 |
Inflatable wheel pontoons
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2979016 |
Amphibious conversion attachments for automobiles and like vehicles
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2838022 |
Spherical water craft
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