Subsea excavation system
CA 1061810 A · Owner: Eastcan Exploration Ltd. · Inventors: Minardi, Paolo; Vielmo, Paolo; Faso, Domenico
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A remotely controlled subsea digging system is disclosed, which comprises a rotatable cranelike lattice structure capable of being sunk from a barge and has a central supporting member to permit rotation of such a cranelike structure about a vertical axis, buoyancy-adjusting means mounted centrally on said structure, a watertight enclosure for housing the control machinery, motive means for axially rotating said structure about its vertical axis, digging means traveling radially from the centre to the periphery of such a structure, motive means for radially displacing and actuating said digging means and cable means for connecting said watertight enclosure with a support barge on the …
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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
- Granted September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 1996.
- 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.