Systems and processes for covering openings of marine vessel hulls
US7451717B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2004 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | May 21, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B81/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Systems and processes for closing openings in marine vessel hulls are provided. The systems and processes facilitate repairs and maintenance of marine vessels by closing openings in the marine vessel hulls to permit dry access to compartments in communication with the openings. The processes and systems incorporate a cover constructed from a lightweight material such as fiberglass, a viscoelastic material such as polyethylene or polyurethane, and blends thereof. The cover is guided in place to effectuate closure of the opening by a track device that receives at least two of the peripheral edges of the cover and directs the cover to the proper position to close the hull opening. The cover may be lowered into place by use of a hoisting device such as a davit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.