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7927164 |
Underwater viewing unit for an air mattress
An underwater viewing unit includes a tube insertable into a through-hole of an air mattress, a rest for the viewer's head provided at the lower end of the tube, and a transparent panedisposed...
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7507132 |
Transparent surfboard with shark locating and repelling system
A transparent and shark-repelling surfboard or flotation board made of transparent super microcellular polymer foam with transparent coating. The surfboard or the flotation board has a locater...
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7007628 |
Watercraft and viewing system kit
An improved watercraft having a viewing system, and a kit for installing a viewing system in an existing watercraft. The watercraft includes a viewing opening through a portion of the bottom of the...
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6941883 |
Submerged underwater observation booth
The invention concerns the structure of a “SUBMERGED UNDERWATER OBSERVATION BOOTH”, including a floating station on water surface, and a piping system to convey fresh air and power into the SUB...
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6805064 |
Personal water craft
A personal water craft is a device having a unitary hull body that includes a substantially horizontal planar deck for supporting an occupant in a pronate position and a shell integral with the...
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6672233 |
Floating body
The invention relates to a floating body, especially a floating body used as a support for an underwater tunnel (11). In order to obtain a high degree of freedom and a large amount of stability...
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6612251 |
Mobile undersea habitat
A mobile undersea habitat includes an elongated vessel having a hull providing an elongated recess opening downwardly to the sea, and a cooperatively dimensioned elongated column seated within the...
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6572424 |
Personal swim craft with an underwater viewing area
A personal swim craft that has a liquid filled viewing area that is simply and inexpensively created within the craft requiring no tooling for molds or related costs. A walled cavity through the...
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6302043 |
Discovery boat
The invention relates to a discovery boat (1) with a viewing cabin located beneath the surface of the water. Said viewing cabin has large viewing windows looking out to the side and forwards....
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6241569 |
Sea windows for rafts
An underwater observation device in combination with a buoyant craft provides an observer with a clear and unobstructed view of underwater scenes. The underwater observation device comprises an...
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6076479 |
Device to observe the sea bed from the deck of a vessel
A device to observe the sea bed from the deck of a vessel is formed by a cubicle that has attachment points to attach it to the structure of the stern of the vessel. This cubicle has a vertical...
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5988088 |
Underwater sightseeing craft
The present invention is characterized by an underwater sightseeing craft, wherein a plurality of displacement bodies for sightseeing equipped with underwater sightseeing rooms are provided and...
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5954558 |
Underwater viewing device
An underwater viewing device for use during ice fishing for permitting a user to see underwater through a hole in the ice. The device includes a viewing tube having open top and bottom ends. An...
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5595133 |
Underwater viewing surface watercraft
An air-to-water surface operating underwater viewing craft which succeeds in providing man with both speed and the same extravagant vision for underwater viewing that he/she possesses above the...
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5476055 |
Watercraft with underwater viewing port
Watercraft has a hull with a viewing opening therein extending between upper and lower portions of the hull. A transparent viewing unit is fitted within the viewing opening and has a periphery...
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5447459 |
Underwater viewing board
A buoyant board for viewing underwater objects while an observer is lying in a prone position is of seamless, unitary construction, and has a viewing well extending through the body of the board...
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5337692 |
Transparent bottom boat
A recreational boat with a viewing plane which may be in contact with the water when the boat is ladened. The boat being constructed from two main pieces, a transparent hull piece formed with...
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5315952 |
Method of making and apparatus of a view window
In a semi-submersible ship, magnifying panoramic view windows are provided that are watertight, strong, highly durable, and resistant to impact and optical occlusion. A laminated transparent sheet...
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5265549 |
Hydro-propelled ship
A hydro-propelled ship is provided which consists of a hull having a double wall, so as to float on a top surface of a body of water. A pair of propulsion turbines are each affixed to a starboard...
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5143009 |
Underwater vehicle with a passive optical observation system
An underwater vehicle is disclosed being equipped with a passive optical observation system. The underwater vehicle has an observation window at its disposal which exhibits a diameter in the range...
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5117774 |
Underwater viewing craft
A water craft which comprises a motor propelled floating portion which has two spaced-apart hulls which are connected by an elevated bridge. The water craft further comprises a submersible cabin...
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5067427 |
Semi-submerged water vehicle
A semi-submerged water vehicle having a small rider's compartment designed to accommodate primarily a single rider that can operate the watercraft in either a standing or a seated position. There...
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5010835 |
Semi-submerged glass boat
An improvement is made in terms of rolling of a semi-submerged glass boat whose hull is formed of the main hull and float tanks provided on the lateral sides of the upper part of the main hull, and...
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5000106 |
Transparent boat
A "glass boat" is provided including wooden structural members provided with a skin of plastic. The plastic panels are secured to mahogany structural members with stainless steel screws. An outer...
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4973279 |
Appliance for assisting a swimmer swim, float and/or being towed behind a boat
The appliance for assisting a swimmer in swimming, floating and being towed by a boat, includes a substantially board-shaped floating body having a leading edge and a trailing edge each of which...
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4946412 |
Swimming aid
A swimming aid comprises a floating body and a bottom viewer and may be used at a swimming pool or in the sea. The floating body is U-shaped in cross section and has a hood at the top thereof. The...
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4928614 |
Submersible observation vessel
A submersible observation vessel having a transparent acrylic hull. The hull comprises a plurality of transparent acrylic cylinders, a plurality of seals to prevent leakage between the cylinders of...
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4925417 |
Underwater viewing paddle board
An apparatus for underwater surveillance that consists of a floating platform having bow and stern with an aerodynamically true forward cowl formed on the bow end, the forward approximately...
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4895539 |
Underwater viewing device
The invention relates to an underwater viewing device wherein a viewer can immerse the lower portion thereof into a body of water and view clear, undistorted images of objects which appear...
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4854256 |
Aquatic show boat
An aquatic show boat has a pair of separated, long narrow hulls joined in a parallel fashion (catamaran like) by a plurality of connecting pieces which together with both hulls enclose the...
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4852508 |
Underwater window for vessels
An underwater window for vessels which is provided to cover an opening made on the hull has a first transparent plate curved to form a convex surface bulging toward the outside of hull outwardly...
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4844595 |
Viewing device for flotation body
In accordance with the present invention a viewing device for flotation bodies is provided which comprises a body having an interior defined by its side walls and at least one transparent end wall....
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4841899 |
Kayak, folding
A frame made up of structural pieces (wooden) and hardware pieces interconnecting them, and a flexible hull. The frame includes a main frame and coaming. The main frame is separable transversely at...
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4840592 |
Power driven underwater viewing platform
An underwater viewing platform is described which has a stern mounted electric drive motor whose direction and speed may by varied by forward mounted controls located adjacent the prone-lying...
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4840458 |
Fixed shutter construction for a split-sphere observatory dome
A split-sphere observatory enclosure wherein the antrum segment is capped with a shutter lid. The rotor which is the active shutter segment sweeps through an elongate curved aperture in the shutter...
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4809630 |
View port for an underwater vehicle
View port for an underwater vehicle, e.g. for a remotely operated vehicle (ROV) usable for underwater inspection, and provides a view port (2) which can form a component of a pressure hull of an...
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4787870 |
Propeller clearing means
The invention provides means to enable the propeller of a power driven watercraft to be viewed and cleared of any fouling material by access from the interior of the craft; suitably the propeller...
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4724785 |
Frame support for connecting two float members
A boat includes two sail surf-board floats, a frame cooperating with each of the floats, a rigid framing comprising at least four fastening lugs to be associated pairwise with each of the frames...
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4715837 |
Underwater viewing device
An underwater viewing device that may be held in the water from a moving boat for viewing below the surface of the water. The device includes a transparent bottom with side walls secured thereto...
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4691658 |
Aquatic sport device
An aquatic sport device includes a buoyant board configured for supporting a user in a prone position thereon and sized to enable the user supported thereby to manually paddle while in a prone...
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4565145 |
Marine observatory craft
A marine observatory craft for viewing of underwater locations includes a plurality of planing type hulls with viewing ports associated with each hull. There is also provided a plurality of...
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4553494 |
Aquatic camera
An aquatic camera apparatus consisting of a transparent screen separating an upper dark dry chamber from a lower vacuum wet chamber. The upper dark chamber is provided with a folding camera obscura...
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4548148 |
Glass bottom boat
A catamaran boat is provided including a pair of laterally spaced apart longitudinally extending displacement-type hollow hulls. Generally horizontal connecting deck structure extends between the...
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4494472 |
Floating and nonsubmersible nautical craft
A floating, nonsubmersible nautical craft has a hull provided with portholes for observation of the underwater medium. It is buoyed and stabilized, and its draft can be varied. The hull and the...
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4465468 |
Underwater viewing device
An underwater viewing device in the form of a generally rectangular, open topped, one-piece, transparent container having a flexible pad at the open top for the face of the user, ventilation...
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4423695 |
Floatable and unsinkable nautical craft
A floating unsinkable nautical craft comprises a hull having a keel portion below the water line and an upper portion. A longitudinally extending passenger compartment is provided at least mostly...
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4420914 |
Spherical segment edge attachment
An improved peripheral closure joint for sealing spherical shell segments to a supporting structure therefor is provided which comprises a generally frustoconical member having an annular groove on...
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4276851 |
Underwater cruise device
An underwater cruise device is disclosed which is mounted to a vessel by a vertical telescoping boom. The device includes a diving chair mounted to the vertical boom which can be selectively...
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4228751 |
Underwater viewing apparatus
An underwater viewing apparatus is provided in combination with a boat having a hull. The apparatus includes a hollow housing open at each end. The lower end of the housing is secured to the bottom...
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4186532 |
Underwater observatory
An off-shore underwater observatory comprising a lower, submerged observation gallery fitted with at least one observation window and having a ceiling with an opening through which the observation...
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