Work platform

Ships – Floating platform – Multiple leg

Patent

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Details

405195, 405208, B63B 3500

Patent

active

043855830

ABSTRACT:
A stable offshore platform for surface or undersea work is provided by connecting a semi-submersible trailer unit with a workboat. Preferably, two columns of the trailer are joined by a beam member or truss, and this assembly is linked to the workboat via a truss-like trailer tongue with a ball swivel joint. When in transit, the semi-submersible unit is deballasted to a shallow draft condition and towed by the workboat.

REFERENCES:
patent: 2602636 (1952-07-01), Travers
patent: 3093167 (1963-06-01), McCammon
patent: 3323478 (1967-06-01), Hunsaker
patent: 3378086 (1968-04-01), Kivisild
patent: 3435571 (1969-04-01), Oltermann et al.
patent: 3572408 (1971-03-01), Hnot
patent: 3722223 (1973-03-01), Gratz
patent: 3765463 (1973-10-01), Gassett et al.
patent: 4156577 (1979-05-01), McMakin
patent: 4217848 (1980-08-01), Meyer-Haake
patent: 4262380 (1981-04-01), Foolen
"The Technology of Offshore Drilling, Completion and Production" by ETA Seminars, Inc., 1976, p. 14.
"Manned Submersibles" by R. Frank Busby, 1976, p. 611, Office of the Oceanographer of the U.S. Navy.

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