Turret for mooring VLCC size vessels
Patent 4601252 Issued on July 22, 1986. Estimated Expiration Date: 
January 3, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 3, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3602175 3735435 3739736 3774562 3886887 Method of and apparatus for mooring a floating structure Spindle moored ship Patent #: 4305341 InventorApplicationNo. 06/567744 filed on 01/03/1984US Classes:114/230.12, Having ship-mounted turret441/3For mooring a vesselExaminersPrimary: Blix, Trygve M.Assistant: Avila, Stephen International ClassesB63B 21/50 (20060101)B63B 21/00 (20060101) AbstractA turret journaled in a vessel used in an offshore location wherein the mooring system is carried by the turret and the vessel is free to weathervane over a subsea wellhead or the like. Illustrated is a VLCC size ship-shape vessel of approximately 300,000 ton displacement for waterdepths of up to 6,000 feet, but latter is no limit. The turret uses segmented bearings under liquid pressure to obtain low friction and allows the vessel to rotate with turret under static and dynamic, and symmetrical and asymmetric loads (e.g., may exceed 30,000,000 pounds). The turret provides a carousel about the moonpool (e.g., 120 feet in diameter) for carrying compartments with winches, utility and storage functions, and topside skids for drilling rigs or other heavy machinery.Other References
| |
