Improved device for lifting and hammering foundation piles for offshore structures
CA 2071427 C · Owner: Veronelli, Paolo · Inventors: Veronelli, Paolo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for lifting and hammering the foundation piles of offshore structures, consisting of a long support element having a length of the order of twenty meters to be inserted, into the foundation pile which is to be driven into the sea bed, said element being suspended from a crane and being provided at its lower end with an expansion-type gripping clamp and at its upper end with a hammering system comprising a striking weight or hammer slidable along said support element until a limit stop is reached. Preferred embodiments are also provided.
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 June 17, 1992 and granted February 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 2014.
- 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.