Vessel with a disconnectable riser supporting buoy
CA 2216047 A1 · Owner: Perratone, Rene · Inventors: Ducousso, Patrick; Perratone, Rene; Isnard, Jean-Loup
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a vessel which is attached to the sea floor by at least one anchor line. A riser support buoy (9) is releasably connected to the vessel. The anchor line or anchor lines are attached to the vessel outside the area of the riser support buoy (9) such that the buoy can be detached from the vessel independently from the attachment of the anchor lines. By releasing the riser support buoy while maintaining the anchor lines in place, the buoy can be released for maintenance purposes inspection of the buoy body or, the riser without the vessel going adrift. Also are the forces between the vessel and the buoy reduced as the anchor lines are not attached to the riser …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.