Matches 1 - 50 out of 73 1 2 >
Match Document Document Title
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...
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...
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...
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...
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...
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...
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...
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....
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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....
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
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...
4154416 Search and rescue kit  
An observer door unit which can be installed and removed from an aircraft doorway during flight, especially designed for use in aerial search and rescue operations. The unit, in its simplest form,...
Matches 1 - 50 out of 73 1 2 >