초록 ▼

A vessel having a moon pool positioned in the center of the vessel. The moon pool plug is adapted to have controllable positive and negative buoyancy. The plug has a top, a cover, a bottom, a first angled side, a second angled side, a third angled side, a fourth angled side; first plates disposed tr

A vessel having a moon pool positioned in the center of the vessel. The moon pool plug is adapted to have controllable positive and negative buoyancy. The plug has a top, a cover, a bottom, a first angled side, a second angled side, a third angled side, a fourth angled side; first plates disposed traversely across the bottom of the plug; and second plates disposed perpendicular to said first plates across the bottom of the plug. These is a water valve for permitting sea water to egress from the plug; an air valve for permitting air to be pumped into the plug. There is a guiding device secured to the plug to guide the plug into the moon pool. There is a hoist secured to the plug to lift the plug into the desk of the vessel.

대표청구항 ▼

1. A vessel, comprising: (a) a moon pool positioned in the center of the vessel; (b) a buoyant moon pool plug adapted to have controllable positive and negative buoyancy; said plug comprising: a top; a cover; a bottom; a first angled side; a second angled side; a third angled side; a fou

1. A vessel, comprising: (a) a moon pool positioned in the center of the vessel; (b) a buoyant moon pool plug adapted to have controllable positive and negative buoyancy; said plug comprising: a top; a cover; a bottom; a first angled side; a second angled side; a third angled side; a fourth angled side; first plates disposed traversely across the bottom of said plug; and second plates disposed perpendicular to said first plates across the bottom of said plug; (c) a water valve secured to said top for permitting sea water to egress from said plug; (d) an air valve secured to said top for permitting air to be pumped into said plug; (e) guide means secured to said plug to guide said plug into said moon pool; and (d) hoisting means secured to said plug to lift said plug into the deck of said vessel. 2. The vessel of claim 1, wherein said moon pool has angled bulkheads into which the buoyant plug can securely fit. 3. The vessel of claim 1, wherein said vessel is a drilling ship. 4. The vessel of claim 1, wherein said vessel is a cable laying ship. 5. The vessel of claim 1, wherein said vessel is a floating production storage and offloading vessel. 6. The vessel of claim 1, wherein said vessel is selected from the group comprising: an oceanographic research vessel; a dive support vessel; a hydrographic survey ship, and ocean surveillance vessel, a fisheries research vessel; and a well stimulation vessel. 7. The vessel of claim 1, wherein said plus has a first, second, third and fourth angled side having an angle of slow between 40 and 60 degrees from the plane of the bottom of the plug. 8. The vessel of claim 1, wherein said vessel is a semi-submersible drilling platform. 9. The vessel of claim 1, wherein said moon pool plug is substantially square.