Ships – Mooring device – Boom type
Patent
1977-09-23
1978-12-19
Blix, Trygve M.
Ships
Mooring device
Boom type
9 8P, B63B 2100
Patent
active
041300777
ABSTRACT:
A single-point mooring system is provided for substantially permanently mooring a floating structure, such as an offshore natural gas treatment facility located on a shipform hull, to an anchor point. A rigid anchor structure, fixed to the bottom of the water body, defines a vertically oriented circular cylinder above the water surface. A collar is mounted circumferentially of the cylinder for movement about and along the cylinder. A pair of rigid arms extend from the floating structure in spaced relation to either side of the cylinder and are spaced equally from the roll axis of the floating structure. Resilient connections are coupled between the arms, the floating structure and the collar to locate the collar centrally between the arms in a normal state, to afford and to accommodate motions of the floating structure relative to the collar in horizontal directions and also about the roll axis of the floating structure in surge, sway and roll, and to absorb the forces manifested between the floating structure and the collar in association with surge and sway motion of the floating structure. Pitch, heave and heading change motions of the floating structure are accommodated by motion of the collar relative to the cylinder.
REFERENCES:
patent: 3195639 (1965-07-01), Pollard
patent: 3481294 (1969-12-01), Vincent
patent: 3522787 (1970-08-01), Tam
Ozudogru Yilmaz H.
Person Abraham
Blix Trygve M.
Global Marine Inc.
Keen D. W.
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