Lay ramp actuating device and method for an underwater-pipeline laying vessel, and relative pipeline laying vessel
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United States of America Patent
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Nov 22, 2011
Grant Date -
Jul 29, 2010
app pub date -
May 6, 2008
filing date -
Jun 6, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An actuating device (23) for a lay ramp (6) of a vessel (1) for laying underwater pipelines '(2) has a runner (28), and a carriage (29) connected to the lay ramp (6) and which runs along the runner (28) to lift and lower the lay ramp (6); the runner (28) being defined by a first, a second, and a third portion (31, 32, 33), of which the first and third portion (31, 33) are out of line with respect to each other, and the second portion (32) is mounted on a movable assembly (37) to selectively align the second portion (32) with the first and third portion (31, 33).
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