Clamping device for buoyancy bodies

Details Clamping device for buoyancy bodies Clamping device for buoyancy bodies

2006-12-01

2010-06-29

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Marine structure or fabrication thereof

With anchoring of structure to marine floor

C405S171000, C405S216000, C166S350000

Reexamination Certificate

active

07744314

ABSTRACT:
Buoyancy unit for use on a riser for sub sea applications, particularly for great depths, with a clamp11to be tensioned around the riser16, and with a tensioning member18to damp the clamp11. Buoyancy bodies26, 27are provided to engage with the clamp11, said clamp11having at least one arched element12-15providing an annular structure to enclose the riser and to be pressed thereto with a tensioning strap18. The buoyancy bodies26, 27are attached to the arched segments, The clamp11is cast from of a concrete material where at least the outer shell or layer is provided to prevent the intrusion of water, the casting of the clamp preferably containing powdered aplite.

REFERENCES:
patent: 1696899 (1929-01-01), Baccovich
patent: 4477207 (1984-10-01), Johnson
patent: 5222453 (1993-06-01), Chabot
patent: 5711639 (1998-01-01), Tessier et al.
patent: 5957074 (1999-09-01), de Baan et al.
patent: 6024791 (2000-02-01), Sonoda et al.
patent: 6270387 (2001-08-01), Nesheim
patent: 2286649 (1995-08-01), None
patent: 2288205 (1995-10-01), None

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