Method for lowering an object to an underwater installation...

Details Method for lowering an object to an underwater installation... Method for lowering an object to an underwater installation...

2005-08-30

2005-08-30

Sotelo, Jesus D. (Department: 3617)

Ships

Mother ship, floating landing platform, and harbor

C405S191000

Reexamination Certificate

active

06935262

ABSTRACT:
The method for lowering an object to an underwater installation site, wherein a submersible remotely operated vehicle (ROV) having at least one thruster for providing lateral thrust is interconnectable to an object, entails providing a vessel, having a winch and suspension cable; interconnecting and lowering the object and ROV towards the underwater installation site using a suspension cable, providing at least one anchor near the installation site; interconnecting each anchor and ROV with a positioning wire, while the ROV and object are suspended in the holding position; tensioning and adjusting the length of each positioning wire such that the interconnected ROV and object are positioned with respect to the installation site; and further lowering interconnected object and ROV, which are positioned by at least one positioning wire onto the installation site while keeping the interconnected object and ROV suspended from a suspension cable.

REFERENCES:
patent: 4010619 (1977-03-01), Hightower et al.
patent: 4721055 (1988-01-01), Pado
patent: 5069580 (1991-12-01), Herwig
patent: 5190107 (1993-03-01), Langner
patent: 6148759 (2000-11-01), Taylor, Jr.
patent: 6588985 (2003-07-01), Bernard
patent: 2277949 (1994-12-01), None

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