Turret mooring system for concrete hull vessel
First Claim
1. In combination with a vessel which includes a concrete hull, a moonpool which extends generally vertically through the hull, and a moonpool wall which is defined by the moonpool, the improvement comprising a turret mooring system which comprises:
- a turret which is positioned in the moonpool;
an upper bearing substructure which is mounted to an upper shoulder which is formed in the moonpool wall;
an upper bearing which includes a non-rotatable part that is connected to an upper end portion of the turret and a rotatable part that is connected to the upper bearing substructure; and
a lower bearing frame which is mounted to a lower shoulder which is formed in the moonpool wall;
wherein the outer diameter of the upper bearing substructure is greater than the inner diameter of the upper shoulder; and
wherein the outer diameter of the lower bearing frame is less than the inner diameter of the upper shoulder but greater than the inner diameter of the lower shoulder.
2 Assignments
0 Petitions
Accused Products
Abstract
A turret mooring system for a vessel which includes a concrete hull and a moonpool which extends generally vertically through the hull comprises a turret which is positioned in the moonpool, an upper bearing substructure which is mounted to the hull proximate an upper end of the moonpool, and an upper bearing which includes a non-rotatable part that is connected to an upper end portion of the turret and a rotatable part that is connected to the upper bearing substructure. Thus, the turret is rotatably connected to the hull via the upper bearing and the upper bearing substructure.
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Citations
27 Claims
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1. In combination with a vessel which includes a concrete hull, a moonpool which extends generally vertically through the hull, and a moonpool wall which is defined by the moonpool, the improvement comprising a turret mooring system which comprises:
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a turret which is positioned in the moonpool; an upper bearing substructure which is mounted to an upper shoulder which is formed in the moonpool wall; an upper bearing which includes a non-rotatable part that is connected to an upper end portion of the turret and a rotatable part that is connected to the upper bearing substructure; and a lower bearing frame which is mounted to a lower shoulder which is formed in the moonpool wall; wherein the outer diameter of the upper bearing substructure is greater than the inner diameter of the upper shoulder; and wherein the outer diameter of the lower bearing frame is less than the inner diameter of the upper shoulder but greater than the inner diameter of the lower shoulder. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. In combination with a vessel which includes a concrete hull, a moonpool which extends generally vertically through the hull, and a moonpool wall which is defined by the moonpool, the improvement comprising a turret mooring system which comprises:
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a turret which is positioned in the moon pool; an upper bearing substructure which is mounted to the hull proximate an upper end of the moonpool; and an upper bearing which includes a non-rotatable part that is connected to an upper end portion of the turret and a rotatable part that is connected to the upper bearing substructure; wherein the turret is rotatably connected to the hull via the upper bearing and the upper bearing substructure; wherein the upper bearing substructure is mounted to the moonpool wall; wherein the upper bearing substructure is mounted to an upper shoulder which is formed in the moonpool wall; and wherein the upper bearing substructure includes a circular footing which is secured to the upper shoulder.
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21. In combination with a vessel which includes a concrete hull, a moonpool which extends generally vertically through the hull, and a moonpool wall which is defined by the moonpool, the improvement comprising a turret mooring system which comprises:
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a turret which is positioned in the moonpool; an upper bearing substructure which is mounted to the hull proximate an upper end of the moonpool; and an upper bearing which includes a non-rotatable part that is connected to an upper end portion of the turret and a rotatable part that is connected to the upper bearing substructure; wherein the turret is rotatably connected to the hull via the upper bearing and the upper bearing substructure; wherein the upper bearing substructure is mounted to the moonpool wall; and wherein the upper bearing substructure is attached to a support member which is embedded in the moonpool wall.
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22. In combination with a vessel which includes a concrete hull, a moonpool which extends generally vertically through the hull, and a moonpool wall which is defined by the moonpool, the improvement comprising a turret mooring system which comprises:
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a turret which is positioned in the moonpool; an upper bearing substructure which is mounted to the hull proximate an upper end of the moonpool; an upper bearing which includes a non-rotatable part that is connected to an upper end portion of the turret and a rotatable part that is connected to the upper bearing substructure; wherein the turret is rotatably connected to the hull via the upper bearing and the upper bearing substructure; a lower bearing frame which is mounted to the hull proximate a lower end of the moonpool; and means supported on the lower bearing frame for slidably engaging a lower end portion of the turret; wherein the lower bearing frame is mounted to the moonpool wall; and wherein the lower bearing frame is mounted to a lower shoulder which is formed in the moonpool wall. - View Dependent Claims (23)
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24. In combination with a vessel which includes a concrete hull, a moonpool which extends generally vertically through the hull, and a moonpool wall which is defined by the moonpool, the improvement comprising a turret mooring system which comprises:
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a turret which is positioned in the moonpool; an upper bearing substructure which is mounted to the hull proximate an upper end of the moonpool; an upper bearing which includes a non-rotatable part that is connected to an upper end portion of the turret and a rotatable part that is connected to the upper bearing substructure; wherein the turret is rotatably connected to the hull via the upper bearing and the upper bearing substructure; a lower bearing frame which is mounted to the hull proximate a lower end of the moonpool; means supported on the lower bearing frame for slidably engaging a lower end portion of the turret; and a chain table which is supported on the lower end portion of the turret; wherein the upper bearing substructure is mounted on an upper shoulder in the moonpool wall and the lower bearing frame is mounted on a lower shoulder in the moonpool wall. - View Dependent Claims (25, 26, 27)
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Specification