Riser tensioner restraint device

Details Riser tensioner restraint device Riser tensioner restraint device

2009-08-07

2011-12-27

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Marine structure or fabrication thereof

With anchoring of structure to marine floor

C405S224200

Reexamination Certificate

active

08083440

ABSTRACT:
An apparatus to restrain a riser tensioner of an offshore drilling rig includes a restraint cone configured to fit within hydraulic cylinders of the riser tensioner, a hoist configured to extend and retract the restraint cone, and a tension member extending from a lower end of the restraint cone, the tension member configured to engage a lower end of the riser tensioner and maintain a wedging action between the restraint cone and the hydraulic cylinders.

REFERENCES:
patent: 4379657 (1983-04-01), Widiner et al.
patent: 4449854 (1984-05-01), Nayler
patent: 4883387 (1989-11-01), Myers et al.
patent: 5160219 (1992-11-01), Arlt
patent: 5163513 (1992-11-01), Chancey
patent: 5169265 (1992-12-01), Butler et al.
patent: 5310007 (1994-05-01), Parikh
patent: 5524710 (1996-06-01), Shinn
patent: 5641248 (1997-06-01), Arlt, III
patent: 5758990 (1998-06-01), Davies et al.
patent: 5846028 (1998-12-01), Thory
patent: 6045296 (2000-04-01), Otten et al.
patent: 7438505 (2008-10-01), Olsen et al.

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