Abstract: An inspection port, and a housing with an inspection port, for use in inspecting an interior volume are provided. The inspection port has a viewing assembly for rotatable securement about an axis of rotation at an inspection opening of a panel defining a side of an interior volume. The viewing assembly has an inspection enclosure for extending into the interior volume. The inspection enclosure has a region with a window opening having a window axis angled relative to the axis of rotation. The housing has an inspection opening at or over which the inspection port is mounted.

Abstract: The invention relates to a ship, in particular a cargo ship, having a power supply system. The invention relates in particular to a ship having a plurality of diesel electric systems for providing electrical power that are disposed within the ship, wherein a plurality of diesel electric systems are each associated with a common opening for removing the diesel electric systems. The invention further relates to a power supply system for a ship and to a method for controlling the power supply system of a ship.

Abstract: In a sea chest defining a hull opening and an interior, a sea chest cover for covering the hull opening and allowing water to flow in and out of the sea chest interior is combined with a sea chest liner for lining the sea chest interior, wherein the sea chest cover and the sea chest liner are made of a non-metallic material. In one aspect of the invention, the sea chest cover has one or more apertures formed therein for allowing water to flow in and out of the sea chest interior, and the one or more apertures are configured to prevent or reduce cavitations. In another aspect of the invention, the sea chest liner is a coating of a non-metallic material applied to the sea chest interior. In yet another aspect of the invention, the sea chest liner being designed to have adjustable lateral dimensions.

Abstract: The ship body of the present invention comprises at least two levels. One is an upper level that comprises a floatable body. The other is a lower level. The lower level is intended to be submerged under water in normal use. The lower level comprises at least two parallel, essentially vertical walls, a floor, and a ceiling connecting the at least two parallel essentially vertical walls. The front end and a rear end of the lower level are open to allow water to enter through the front end and exit through the rear end of the lower level.

Abstract: The present invention is a view port suitable for installation under the water line of a vessel wherein the view port comprises a flange made from a corrosion resistant material and a body made from a heat resistant material. An alternative embodiment of the invention is an underwater light in which a high intensity discharge light is installed into the above mentioned view port. The light may be swiveled while installed in the view port in order to direct the light along a desired path.

Abstract: A water intake device is disclosed for mounting on a boat hull so that at least a peripheral portion water-side face thereof is substantially flush with an exterior surface of the boat hull. The water intake device includes a plate or screen having the water-side face and having a plurality of througbores for water uptake. The throughbores are obliquely angled with respect to the water-side face to promote water intake, and preferably are angled at approximately 20 degrees.

Abstract: A motorwell throughhull is disclosed having a central portion for threadably receiving end caps or securements thereon. The central portion is sizable, such as by being formed of a material that is easily cut such as plastic. The end caps may be formed of metal to provide a desirable aesthetic appearance.

Abstract: A fuel fill port that helps prevent spillage of fuel during watercraft fueling includes a housing having an opening for installation on a surface of the watercraft and a cap for sealing the opening. A fill tube has one end sized to accept a fuel dispensing nozzle and another end for connection to a fuel tank. A catch basin defined by a bottom portion of the housing is positioned such that backflow of fuel from the fill tube collects within the catch basin. A fill vent has one end positioned relative the fill tube to allow excess fuel from the fuel tank to flow into the catch basin and another end adapted for connection to the fuel tank. One or more passages from the catch basin to the fuel tank guides fuel from the catch basin to the fuel tank.

Abstract: Disclosed is a window housing for use in combination with a transducer style thru-hull fitting. The window housing is sealingly attached to the thru-hull fitting by use of a first securement cap. The window housing having a window panel positioned adjacent to the outer side surface of the vessel hull. A tubular shaped light assembly preferably housing LED's may be inserted into the window housing and secured thereto by the use of a second securement cap. Alternatively a tubular shaped camera assembly may be inserted into the window housing and secured thereto by the use of a second securement cap.

Abstract: A sliding window for use in an opening in a supporting structure. The window comprises a plurality of glazing materials, an interior trim ring, and a housing having a plurality of tracks and at least one drain passage connecting each track to a surface on the housing. The drain passages are positioned downwardly from each track through the housing to a position on the surface of housing which is in fluid communication with an exterior environment. The components that comprise the window frame that holds the glazing materials can be economically produced from a unitary blank. The vertical orientation of the drain passages limits the possibility that the passages will become blocked, and thus unable to drain the water from the tracks. Furthermore, each drain passage connects the track directly to the exterior environment to avoid the possibility of one drain passage becoming blocked and urging water back into another track.

Abstract: The present invention is a view port suitable for installation under the water line of a vessel wherein the view port comprises a flange made from a corrosion resistant material and a body made from a heat resistant material. An alternative embodiment of the invention is an underwater light in which a high intensity discharge light is installed into the above mentioned view port. The light may be swiveled while installed in the view port in order to direct the light along a desired path.

Abstract: A port light assembly for watercraft having an exterior frame comprising a finish ring and a spigot defining a port light opening. The spigot is inserted in a hole in a vessel hull from the exterior of the vessel. The spigot is configured to provide drains to keep water from pooling near the port light. The exterior frame is connected to an interior frame that is placed around the spigot from the inside of the vessel. An innermost frame, retaining a glass lens, is hingedly connected to the interior frame. The assembly includes a screen installable from inside the hull. The frames are constructed from plastic and reinforced by strips of non-corrosive metal. The assembly is adjustable for hull thickness. The assembly is installed without the use of caulk or adhesives, it provides a watertight seal between the exterior and interior of the vessel.

Abstract: A window for a support structure, such as a hull of a freighter or tanker or other large ship having clips, studs, glue and protective ultraviolet paint.

Abstract: A port assembly for a marine vessel having an outer wall with an opening therein includes a shaped lens element, a pair of concentric plastic rings and a resilient gasket between the lens element and one of the rings. The plastic ring on the outside of the vessel is adjacent to the gasket and includes a pair of hinged brackets and a plurality of mounting members. A hinge assembly connects the plastic ring and lens element and allows the lens to be rotated inwardly to an open position and back to a closed position in which it is pressed against a gasket. One or more dogs are rotatably mounted on the mounting members for holding the lens element in a closed position. The second plastic ring is constructed and arranged to clamp the first ring within the opening and against the wall of the vessel. In a preferred embodiment of the invention, a decorative metal ring covers the exterior surface of the port assembly.

Abstract: There is presented an underwater body and intake scoop, the underwater body aving a wall defining a major portion of the body, the wall being exposed to water during movement of the body through a water environment. The intake scoop includes a recess in the wall of the body, the recess having forward and aft edges extending substantially width-wise of the body and interconnected by generally length-wise extending side edges to form, in plan view, a multi-sided recess with the side and aft edges being rounded to facilitate reduction of turbulence and cavitation. A bottom surface of the recess slopes from the forward edge inwardly of the wall. The recess is in communication with a conduit extending to the interior of the body.

Abstract: In a window structure equipped on the side walls of a cabin in the body of an airplane, a transparent board is mounted on the outer portion for sealing the pressure inside the cabin. A dust cover is mounted in the inner side of the transparent board sealing the pressure, and a shade 80 which is able to take an up and down movement is mounted on the cabin side of the dust cover for blocking outer incident light. The dust cover comprises of a transparent resin board and a non-elastic film stuck on the surface of the transparent resin board facing the shade. The acrylic resin used as the material of the transparent resin board expands by absorbing the water in the air, but by the operation of the non-elastic film, the dust cover bends toward the outer direction F of the body, and will not interfere with the locus L.sub.1 of the up and down movement of the shade.

Abstract: A sight glass assembly is bolted to a mounting flange welded to a barge deck around an opening therein at the top of a cargo tank in the barge. A couple of wiper assemblies are mounted to the sight glass and are operable from outside the glass by hand cranks. Each wiper assembly includes a replaceable wiper cartridge having an O-ring as the glass wiping member. The sight glass assembly can be unbolted from the mounting flange for ready access to the replaceable cartridges.

Abstract: A cover for a hatch includes a rigid main body member and a sealing member secured to the main body member. The sealing member is an expanded polyethylene foam; and it extends across the hatch and engages the portion of the structural member or deck adjacent the hatch. The sealing member, thus, seals the hatch and insulates the compartment below the hatch. It acts as a gasket seal for the cover, and provides sound dampening, corrosion protection, and other advantages.

Abstract: A porthole construction for placement in an opening of a hull of a ship comprising a first plastic member made of transparent material and a second member made of plastic material. The first member includes an axial wall frictionally engaging the porthole opening, a transverse wall defining the window, and a radial wall extending radially outwardly from the axial wall and engaging the outside of the hull. Fasteners extend through the radial wall to hold the first member in position on the hull. The second member includes an axial wall frictionally engaging the inner surface of the axial wall of the first member, a radial wall overlying the radial wall of the first member and a second axial wall extending from the radial wall and engaging the hull about the radial wall of the first member. Interengaging members are provided between the radial walls of the first and second member to further hold the second member on the first member.

Abstract: A threaded access cover plate construction for boat decks, comprising a threaded fitting which is adapted to be secured to the deck, and a screw closure receivable in the fitting. Both the fitting and the closure have cooperable buttress-type threads which are dimensioned such that there is a relatively loose fit between the two parts. The rim of the fitting is in the form of a resilient upstanding skirt constituted of deformable material, the skirt being capable of yielding at selected points, due to its engagement by a centering shoulder of the closure. The yielding of the skirt permits improved seating of the closure, by minimizing the effect of interference between high points at the regions of contact of the two parts. Accordingly, a highly leak-resistant seal is established, even when the fitting or the closure has become slightly warped, or the fitting has been stressed to some extent by virtue of its being secured to the deck.

Abstract: A threaded access cover plate construction for boat decks, comprising a threaded fitting which is adapted to be secured to the deck, and a screw closure receivable in the fitting. Both the fitting and the closure have cooperable buttress-type threads which are dimensioned such that there is a relatively loose fit between the two parts. The closure has a centering shoulder which is engaged by the rim of the fitting whereby a self-centering of the closure takes place when it is screwed into the fitting. The loose fit and the sliding engagement of the flat surfaces of the buttress-type threads enable an unimpeded lateral shifting of the closure to occur as determined by the engagement of the centering shoulder on the closure and the rim of the fitting.