Patent · US Expired

Ship with a protection system making it unsinkable

US6327988A · kind A · utility

3Cited by
4References
10Claims
0Family size

Inventor

Key dates

Filing dateFeb 12, 2001
Grant dateDec 11, 2001
Priority date
Expiry dateFeb 12, 2021

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB63B2231/50
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A watercraft, e.g. a passenger vessel, a ferry, a hazardous-substance freighter or the like, with a deck and with a buoyancy chamber in the deck, it being the case that, in a first operating state, the buoyancy chamber contains air, is characterized in that, in a second operating state, the buoyancy chamber is filled with a foam which has a high cell volume with closed cells and a dimensionally stable state of aggregation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.