B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
114/46.8
B63B 21/50 (2006.01)
Patent
CA 1253402
ABSTRACT VESSEL MOORING SYSTEM AND A METHOD FOR ITS INSTALLATION The present invention provides a vessel (V) mounted mooring system (H) and a method for its installation. The method involves the construction of a vertical well (W) in the vessel (V) extending from the deck (D) to the bottom plates (P). A lower bearing ring (L) which circumscribes the well (W) is connected to the underside of the bottom plates (P) and extends beyond the keel. A lower turret unit (A) is supported substantially within the bearing ring (L). A middle turret unit (B) is placed into the well (W) and connected to the lower turret unit (A). An upper bearing ring (U) which circumscribes the well (W) is mounted to the deck (D). An upper turret unit (C) is connected to the middle turret unit (B) whereupon the assembly of the upper (C), middle (B) and lower (A) turret units is supported and guided by the upper bearing ring (U) and further guided by the lower bearing ring (L). Chain lockers (58) which include chains (42) and wind- lasses (56) are mounted to the upper turret unit (C) for selectively paying out or reeling in chain (42) through the upper (C), middle (B) and lower (A) turret unit to allow the chain (42) to be connected near the subsea floor.
493035
Key Joe W.
Shumaker Fred E.
Key Ocean Services Inc.
Smart & Biggar
LandOfFree
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