Hydraulic and earth engineering – Marine vessel portage – launching – or removing – Lifting
Reexamination Certificate
2007-10-26
2008-09-02
Mayo, Tara L. (Department: 3671)
Hydraulic and earth engineering
Marine vessel portage, launching, or removing
Lifting
C405S004000, C405S196000, C405S218000, C405S221000, C114S044000
Reexamination Certificate
active
07419329
ABSTRACT:
A portable marine lift capable of multi-directional off-loading of yachts, ships, and other marine vessels at ground level to dry-dock them. It is compact and barge-like, and can be shared by independent shipyards, or used to expand the work area within a single port facility or shipyard. It is also self-contained when fitted with generators and/or propulsion means via add-on pods, and comprises independent platform sections joined together to meet any hull design, length and water depth. Platform sections have the ability to submerge, and may also be employed to capture and temporarily contain environmentally hazardous materials commonly produced by shipyards. In addition, the platform sections are preferably open-framed for weight savings. Computerized lifting, via multiple lift modules secured to platform sections, assures lifting of vessels in substantially level orientation. Optionally, platform sections can be configured for shallow water operation, with locking devices, and/or guides usable for off-loading railway alignment.
REFERENCES:
patent: 7055449 (2006-06-01), Brown
patent: 2004/0258483 (2004-12-01), Vatsvag
patent: 2007/0243024 (2007-10-01), Foo et al.
Mayo Tara L.
Morse Dorothy S.
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