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1. (WO2019008325) SECTEUR DE MISE À L'EAU
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

Claims

1. An overboarding quadrant (116; 216) comprising:

a support (126) for lifting and lowering a flexible elongate submersible element (110); the support (126) defining an arcuate guide path (128) for guiding the flexible elongate submersible element (110);

at least one restraint (150) which is positionable at or adjacent to the arcuate guide path (128) for holding the flexible elongate submersible element (110) captive on the arcuate guide path (128); and

a restraint control mechanism (156) on the support (126) which is remotely operable, the restraint control mechanism (156) being arranged to enable movement of the or each restraint (150) between a captive condition in which the flexible elongate submersible element (110) is restrained to the arcuate guide path

(128) by the or each restraint (150), and a release condition in which the flexible elongate submersible element (110) is not restrained to the arcuate guide path (128) by the or each restraint (150).

2. An overboarding quadrant (116; 216) as claimed in claim 1, wherein me restraint control mechanism (156) comprises at least one elongate member (164; 264; 364) which is radially aligned with the arcuate guide path (128), directly or indirectly attachable to the restraint (150) and is movably attachable to the support (126).

3. An overboarding quadrant (116; 216) as claimed in claim 2, wherein the restraint control mechanism (156) further comprises at least one movable holding element (158) which interconnects the or each restraint (150) to the or each elongate member (164; 264; 364).

4. An overboarding quadrant (116; 216) as claimed in claim 3, the movable holding element (158) includes a restraint-holding arm (160) and an elongate-member attachment arm (162) arranged at an acute angle to one another.

5. An overboarding quadrant (116; 216) as claimed in claim 3 or claim 4, wherein the or each movable holding element (158) is spring biased to an unsecured condition, in which the restraint (150) is in a release condition.

6. An overboarding quadrant (116; 216) as claimed in any one of claims 2 to 5, wherein the or each elongate member (164; 264; 364) or the or each restraint (150) istensionable.

7. An overboarding quadrant (116) as claimed in any one of the preceding claims, wherein the restraint control mechanism (156) includes a remotely operable shackle (172; 372).

8. An overboarding quadrant (116) as claimed in claim 7, wherein the or each elongate member (164;

364) or the or each restraint (150) is releasable from the support (126) via the remotely operable shackle (172;

372).

9. An overboarding quadrant (216) as claimed in any one of claims 1 to 5, wherein the restraint control mechanism (156) includes a remotely operable rotatable element (270).

10. An overboarding quadrant (116; 216) as claimed in any one of the preceding claims, wherein a plurality of restraints (150) is releasable simultaneously.

11. An overboarding quadrant as claimed in any one of claims 1 to 9, wherein the plurality of restraints (150) is releasable individually.

12. An overboarding quadrant (116; 216) as claimed in any one of the preceding claims, wherein the arcuate guide path (128) is semi-circular.

13. An overboarding quadrant ( 116) as claimed in any one of the preceding claims, further comprising at least one guide-rotatable element (148) which is positioned at or adjacent to the arcuate guide path (128).

14. An overboarding quadrant as claimed in claim 1, wherein the restraint control mechanism comprises a circumferential elongate member which is circumferentially aligned with the arcuate guide path, directly or indirectly attachable to the restraint and which is movably attachable to the support.

15. A system for lowering from a vessel and remotely releasing a flexible elongate element (110), the system comprising an overboarding quadrant (116; 216) as claimed in any one of the preceding claims, and a remote controller for operating the remotely operable restraint control mechanism (156).

16. A method of remotely releasing a flexible elongate submersible element (110) from an overboarding quadrant (116), the method comprising the steps of:

a] providing an overboarding quadrant (116; 216) as claimed in any one of claims 1 to 14 in the captive condition;

b] operating the restraint control mechanism (156); and

c] lifting and pivoting the overboarding quadrant (116) to move the flexible elongate submersible element (110) from the overboarding quadrant (116).

17. A method as claimed in claim 16, wherein the or each restraint (150) remains intact whilst moving from a captive to a release condition.

18. A method of resetting the overboarding quadrant (116; 216), the method comprising the steps:

a] releasing the flexible elongate submersible element (110) according to the method of claim 16 or claim 17;

b] positioning a further flexible elongate submersible element (110) around the arcuate guide path (128);

c] moving the or each restraint (150) to a captive condition by attaching the or each restraint (150) to the movable holding element (158) so as to secure the flexible elongate submersible element (110) to the arcuate guide path (128); and

d] movably fixing the or each elongate member (164; 264; 364) to the support (126).

19. A method as claimed in claim 18, wherein the steps a, b, c, dare performed in the order a, b, c, d.

20. A method as claimed in claim 18, wherein the steps a, b, c, d are performed in the order a, b, d, c.

21. An overboarding device ( 116; 216) comprising : a support for lifting and lowering a flexible elongate submersible element (110); the support (126) defining an arcuate guide path (128) for guiding the flexible elongate submersible element (110); at least one restraint (150) which is positionable at or adjacent to the arcuate guide path (128) for holding the flexible elongate submersible element (110) captive on the arcuate guide path (128); and a restraint control mechanism (156) on the support (126) which is remotely operable, the restraint control mechanism (156) being arranged to enable movement of the or each restraint (150) between a captive condition in which the flexible elongate submersible element (110) is restrained to the arcuate guide path (128) by the or each restraint(150), and a release condition in which the flexible elongate submersible element (110) is not restrained to the arcuate guide path (128) by the or each restraint(150).