Maryland's Defense Patent Database

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Permeable hull to mitigate impact load in water

Patent image
NSWCCD

The invention is directed to an apparatus for mitigating the load impact on a surface watercraft and passengers therein, during high speed travel. The hull includes a damping cavity for mitigating the load impact on the surface watercraft. The damping cavity is positioned on a dry portion of an undersurface of the hull between a forward end and an aft end of the hull. The damping cavity includes a porous plate on the undersurface, and a deck plate within the hull body. The deck plate and the porous plate are separated by a gap, and an inflatable bladder may be positioned in the gap between the plates.

Inventors: 
Shen, Young T.; Gowing, Scott; Day, William G.; Coats, Timothy W.
Patent Number: 
Technical domain: 
Handling and Transportation
FIle Date: 
2008-04-15
Grant Date: 
2011-06-28
Grant time: 
1,169 days
Grant time percentile rank: 
21
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY