A floatation device of any size or shape stabilized by a ballast system comprised of sponge contained in permeable enclosures, which enclosures in turn are secured to the underside of the device, which sponge, upon contact with water, rapidly absorbs such water and provides prompt, sufficient ballast.
Sponge Ballast System
2015-12-03
Patent
Elektronische Ressource
Englisch
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |