US 11,866,130 B2
System for restriction of hawser movement in a tandem mooring and loading
Christian W. Mosgren, His (NO); and Geir Olav Hovde, His (NO)
Assigned to APL Norway AS, Kolbjørnsvik (NO)
Appl. No. 17/284,364
Filed by APL Norway AS, Kolbjørnsvik (NO)
PCT Filed Sep. 12, 2019, PCT No. PCT/NO2019/050186
§ 371(c)(1), (2) Date Apr. 9, 2021,
PCT Pub. No. WO2020/076160, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 20181304 (NO), filed on Oct. 10, 2018.
Prior Publication US 2021/0380204 A1, Dec. 9, 2021
Int. Cl. B63B 21/50 (2006.01); B63B 21/04 (2006.01)
CPC B63B 21/50 (2013.01) [B63B 21/04 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system for restriction of hawser movement in a tandem mooring and loading system comprising:
a first floating structure being spread moored, and;
a second floating structure, and;
a tandem mooring arrangement between the first floating structure and the second floating structure comprising:
at least one hawser connected in a first end to a hawser connection arrangement having a stationary attachment point on the first floating structure, and in a second end connected to a hawser connection point on the second floating structure, and;
a loading arrangement
wherein the system comprises a hawser guide arrangement, wherein the hawser guide arrangement comprises:
at least two guide structures situated on either side of the hawser connection arrangement and on an outside of an aft starboard side and an aft port side of a vessel hull on the first floating structure, for allowing a weather-vanning sector larger than 180 degrees by hindering the at least one hawser from crossing over a deck portion of the first floating structure when the second floating structure weathervanes relative to the first floating structure
wherein the at least two guide structures each have a vertical height extending from a bottom end below the hawser connection arrangement to a top end above the hawser connection arrangement, wherein a minimum height of the at least two guide structures is adapted to a vertical working range of the at least one hawser at a location of the at least two guide structures.