135results about "Vessel ports" patented technology

Systems and processes for closing openings in marine vessel hulls are provided. The systems and processes facilitate repairs and maintenance of marine vessels by closing openings in the marine vessel hulls to permit dry access to compartments in communication with the openings. The processes and systems incorporate a cover constructed from a lightweight material such as fiberglass, a viscoelastic material such as polyethylene or polyurethane, and blends thereof. The cover is guided in place to effectuate closure of the opening by a track device that receives at least two of the peripheral edges of the cover and directs the cover to the proper position to close the hull opening. The cover may be lowered into place by use of a hoisting device such as a davit.

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.

A dive door for a marine vessel comprising a planar body having an interior surface and an exterior surface. The door is disposed between the gunwale of the boat and is hingeably attached to the deck of the boat. The door is releasably retained to the gunwale by one or more latches disposed at a top edge of the dive door. One or more gas shocks are attached to the door and the boat such that the dive door is selectively operable between a deployed position and a closed position. When deployed, the interior surface of the dive door extends outwardly from the boat. In the closed position, the outer surface of the dive door is matches the profile of the gunwale, providing a sleek integrated look. A ladder may hinged to the dive door and is configured to extend downward into the water surface when the door is deployed.

The invention relates to the technical field of ships, and aims to provide a broadside hangar door. The broadside hangar door comprises a door frame and a hangar door body, wherein the hangar door body is in hinged connection to the door frame; the hangar door body comprises an upper hangar door body and a lower hangar door body which are in hinged connection; a telescopic device is arranged between the door frame and the upper hangar door body; rolling wheels are respectively arranged on the two sides of the bottom of the lower hangar door body; a guide rail which fits with the rolling wheels is arranged on the door frame; fixing plates are respectively arranged at the two ends of the bottom of the lower hangar door body; fixing devices are arranged on the two side surfaces of the upper part of the door frame; a second fixing hole is formed in a position, facing one of the fixing devices, of the upper hangar door body; locking devices are arranged on the hangar door body; and a first fixing hole of a locking bolt is formed in a position, corresponding to one of the locking devices, of the door frame. The broadside hangar door disclosed by the invention has the following beneficial effects that the shortcoming that an existing hangar door occupies the space of the bow and stern of a hangar and the space of a lower deck is overcome, and more effective spatial arrangement is provided for diving equipment.

A gunwale sliding section is integrated into a stern portion of a gunwale of a marine vessel. The gunwale sliding section is slideably positioned. The longitudinal motion of the gunwale sliding section is parallel to the gunwale, wherein a sternward motion provides an open configuration and bow-ward motion provides a closed configuration. A rail and slide assembly enables the sliding motion. The stern arrangement of the gunwale sliding section enables a wider span across the opening, thus enhancing embarking and disembarking of the marine vessel. The gunwale sliding section can be manually operated or employ automated mechanisms, such as a hydraulic system, a pneumatic system, a motor driven system, and the like.

The invention relates to a marine hydraulic mooring platform. The marine hydraulic mooring platform comprises three portions such as a platform steel structure, a hydraulic controlling and driving system and an electric control system. The platform steel structure comprises a platform, a surrounding frame, a turn-over hinge device and a mechanical locking device. The hydraulic controlling and driving system comprises an electric/hydraulic self contained drive unit (EDU) and an emergency manual operating unit. The electric system comprises an electric control box, an alarm whistle with a lamp, a limit switch and the like. The platform is connected with the surrounding frame through the turn-over hinge device, driving is performed through the EDU or the emergency manual operating unit, a piston rod in the EDU extends and retracts to drive the turn-over hinge device, and the platform is downwards turned to open or upwards turned to close. A hinge does not occupy channel space, a hydraulic system is portable, small and exquisite, leakage is not prone to occur, the integration level of the whole platform is high, demands of customers for simple operation and stable performances are met, and the marine hydraulic mooring platform is suitable for time theme of green environmental protection.

The present invention provides an apparatus and method of a dock system for launch and recovery of a stowed boat, which is capable of launching and recovering the boat during navigation of a marine vessel at a high headway speed. The launch and recovery apparatus has a stern dock (2) for accommodating the boat (10) therein. The apparatus launches the boat outboard through a stern opening and recovers the boat from the outboard area by entry of the boat into the dock. The apparatus is provided with a conduit device (11) so that seawater surrounding the vessel is drawn through an intake port (12) and is delivered to the dock through an outlet port (13). In the dock, a backward water stream is generated, which is to be discharged outboard through the stern opening.

The invention discloses a mounting precision control method for stern door hinges. The mounting precision control method comprises the steps: A, preparation work before mounting is conducted; B, a ground sample datum line is scribed on the horizontal ground according to theoretical data of a drawing; C, a stern door is hoisted to the designated position, specifically, the stern door is hoisted onto a pier position on one side of the datum line through a crane; D, horizontal measuring points of the stern door are selected; E, the precision of a theoretical centerline is examined, and transversecenterline positioning lines of the hinges are scribed; F, horizontal direction mounting lines of the hinges are scribed; G, machining is conducted, and a dummy shaft and a short sleeve are mounted;H, the longitudinal direction of the dummy shaft is adjusted; I, the transverse central positions of hinge seat plates are adjusted; J, hinge seat fixing spacers are mounted; K, adjusting spacers aremeasured and prepared; L, the adjusting spacers are subjected to point welding; M, drilling, tapping and hinge seat fixing are conducted; N, hinge seats are mounted; O, the adjusting spacers are welded; and P, the dummy shaft is dismounted, and hinge pin shafts are mounted. The mounting precision control method is suitable for mounting of the two or more sets of hinges of the stern door, a hatch cover and a gang plank, a mounting method is simple, and the precision is high.

One or more wavegates are located on a seismic surface vessel to substantially prevent or limit waves from crashing onto a back deck of the vessel. The wavegate may comprise one or more steel gates or doors located at or near the aft portion of the vessel, such as on or near the rear end of the back deck, that may be moveable between a closed position and an open position. Each door may be fixed in position and/or be rotated and/or moveable in a horizontal and/or vertical direction between different positions. The wavegate allows the surface vessel to travel backwards and/or in the face of incoming waves while substantially preventing and/or limiting waves from crashing onto the back deck of the marine vessel. The seismic surface vessel may be a deployment vessel or a hybrid seismic shooting and deployment vessel or another marine surface vessel.

The invention discloses an observation window structure of a deep-sea manned submersible with a creep mitigation function, and relates to the field of deep-sea manned submersibles. The observation window structure has the advantages that compared with a conventional observation window structure, a hatch cover and a push rod structure are initiatively introduced, combined with electric control of astrain measurement system and hydraulic control system, the thrust acting on an observation window body is generated when an observation window is idle, the high pressure and large deformation causedby the observation window body can be alleviated under the high pressure state of the external seawater during deep-sea operation, the action time of the observation window body under the high-stressstrain is reduced, and the compressive creep of the observation window can be greatly alleviated; the hatch cover can also effectively protect the observation window body, it is avoided that the observation window body is knocked and worn by sundries in a cabin, and the service life of the observation window is prolonged.

The invention discloses a porthole for a ship, comprising a window frame, wherein a window blind and a gland are sequentially arranged at the outer end of the window frame and hinged together. A pin boss is fixed on the outer side of the window frame; and lug plates are respectively arranged on a blind frame and one side of the gland and are respectively provided with U-shaped notches. Locking pins are arranged between the pin boss and the two lug plates and are clamped in the U-shaped notches on the two lug plates. The window blind comprises the blind frame; and fire retardant glass is arranged in the blind frame. The porthole is characterized in that a sleeve frame is arranged on the outer side of the window frame; and a fire retardant plate is arranged between the sleeve frame and the window frame. Annular sealing plates for stopping the fire retardant plate are respectively arranged at the inner and outer ends of the sleeve frame and the inner and outer ends of the window frame. Annular flame-retardant rubber strips are respectively arranged between adjacent ends of the blind frame and the window frame, between the periphery of the fire retardant glass and the bottom of an axial groove, between two sides of the periphery of the fire retardant glass and the walls of two grooves and on one surface of the gland, which is adjacent to the blind frame. The porthole for the ship has the performances of sealing, preventing fire, insulating head and shielding and is suitable for outer boards of the ship, upper-layer building and the outer circumferential wall of deck of the ship.

The invention relates to the technical field of ships, and discloses a boarding door device and a ship. The boarding door device comprises a door plate, a fixed stairway and a movable stairway. The lower end of the door plate is rotationally connected to the side wall of a warehouse, and the door plate is provided with a closed position for blocking an opening of the warehouse and an open positionfor opening the opening of the warehouse. The fixed stairway is connected to one end, far away from the rotating shaft, of the inner side of the door plate; the movable stairway is rotationally connected to a bottom plate of the warehouse, and the movable stairway is configured to be stacked on the fixed stairway when the door plate is located at the closed position and stacked on the inner sideof the door plate so as to be coplanar with the fixed stairway when the door plate is located at the open position. The boarding door device can block an outlet of a warehouse and can also form a stairway when the door plate is opened; and opening and closing are convenient, operation is easy, and the occupied space is small. The ship can be in butt joint with other ships conveniently through theembarkation door device, and is compact in structure and small in occupied space.

The invention relates to a sound insulation chock for a ship. The sound insulation chock for the ship comprises a door sheet and a door frame. One group of corresponding sides of the door sheet and the door frame are connected in a hinge mode, and a locking mechanism is arranged between the door sheet and the door frame except a hinge edge. The door sheet and the door frame are all in a hollow shape with sound insulation materials filled inside. The sound insulation chock for the ship is characterized in that the inner edge of the outer lateral face of the door frame and the edge of the inner edge of the door sheet are all provided with convex ribs arranged horizontally along a circumferential direction, and a door sheet corresponding to the convex ribs of the door frame and the door frame corresponding to the convex ribs of the door sheet are all fixed with a sealing strip; the protruding length of the convex ribs on the door frame is larger than a horizontal thickness of the sealing strip on the door frame, and the protruding length of the convex ribs on the door sheet is larger than the horizontal thickness of the sealing strip on the door sheet. The sound insulation chock has high sealing and sound insulation performance, and the sealing strips are difficult to damage.

A scupper plug apparatus is foot-operable, by a person standing next to the scupper, to apply substantially more force for sealing the scupper than is typically achievable through application of force by the hand or arm of a person installing a scupper plug. A resilient body of the scupper plug formed from highly conformable closed-cell foam to closely match the shape of the scupper. A rolling member is used as a cam follower in an actuation arrangement for compressing the resilient body.

A trolling motor mount intended for a larger watercraft having a bow-mounted anchoring system, with the trolling motor mount having a horizontal mounting platform, a vertical extension member, and a shank, with the horizontal mounting platform being suitably configured to attach a standard trolling motor thereto, the shank being suitably configured to attach to the anchoring system of the watercraft in place of the anchor, and the vertical extension member being of sufficient length to allow the trolling motor to properly reach the water when the trolling motor mount is securely attached to the watercraft by the anchoring system.

The invention discloses a ship air scuttle arranging method and a ship. According to the ship air scuttle arranging method and the ship, after mass gathering of a ship body is completed, arranging parts are integrally welded to the ship body and fire work is completed, the lower edge line, the upper edge line, the front edge line and the rear edge line of each formed air scuttle hole are marked ona broadside outer plate respectively, the lower edge lines corresponding to all air scuttle holes of the same layer on the same broadside are kept on the same horizontal line, the upper edge lines corresponding to all the air scuttle holes of the same layer on the same broadside are kept on the same horizontal line, and all the front edge lines and the rear edge lines are kept distributed vertically. The air scuttle arranging method can met air scuttle hole forming precision and aesthetic requirements.

The invention discloses a hatch coaming with the overall strength completely reckoned in and hatch longitudinal girder of a bulk cargo ship. The hatch coaming with the overall strength completely reckoned in and hatch longitudinal girder of the bulk cargo ship comprise a longitudinal hatch coaming body and a hatch longitudinal girder body. The longitudinal hatch coaming body is continuous in the length direction of the ship, the material elasticity yield limit of the longitudinal hatch coaming body is increased by 16% relative to that of a main deck, and the height of the longitudinal hatch coaming body is reduced to 600 mm or below at an athwartship bulkhead; the height of the hatch longitudinal girder body is smaller than that of a traditional hatch longitudinal girder. By means of the hatch coaming with the overall strength completely reckoned in and hatch longitudinal girder of the bulk cargo ship, the rigidity of a ship girder structure can be improved, the fatigue life of a hatch corner is prolonged, the capacity of a cargo hold is increased, and the structural weight of a longitudinal member in the cargo hold area is averagely reduced by 3% or above.

A hybrid personal watercraft combines features of pontoon boats and deck boats, in a cost-effective and versatile package. The watercraft includes port and starboard sponsons which combine a pair of outboard flotation cavities. A space below the deck and above the hull bottom creates at least one, and potentially up to three additional flotation cavities, which may also be used as storage areas accessible by an access door in the bow of the watercraft and/or a set of hatches in the deck. The watercraft may be efficiently produced assembled from polymer materials, such as thermoplastic polyolefin (TPO).

The invention discloses a novel adjustable window bucket for a ship. The novel adjustable window bucket comprises a bottom frame, a middle frame and an upper pressure frame which are orderly connected; and the bottom frame comprises two semi frames abutted oppositely; the middle frame is fixed on the bottom frame, and the middle frame and the upper pressure frame are adjustably connected. The mounting depth of the novel adjustable window bucket is adjustable; and the mounting width of the bottom frame is also adjustable. The novel adjustable window bucket has the advantages of simple structure, convenience in manufacture, firmness, reliability, beautiful appearance and the like. When accommodation outfitting is carried out to the ship, the mounting time of the window bucket can be greatly improved, the material and working hour can be saved, and the outfitting period at a wharf is obviously shortened; and the novel adjustable window bucket can be generalized and used in construction processes of a plurality of ships, and the produced economic and social benefits are great.

A petroleum drilling, production, storage and offloading vessel having a hull, a main deck, an upper cylindrical side section extending downwardly from the main deck, an upper frustoconical side section, a cylindrical neck section, a lower ellipsoidal section that extends from the cylindrical neck section, and a fin-shaped appendage secured to a lower and an outer portion of the exterior of a bottom surface. The upper frustoconical side section located below the upper cylindrical side section and maintained to be above a water line for a transport depth and partially below the water line for an operational depth of the petroleum drilling, production, storage and offloading vessel.