Container crane
CA 2025464 A1 · Owner: Tonkin, Norman · Inventors: Tonkin, Norman; Tonkin, Norman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A quay side container crane for loading and unloading containers onto and from a ship moored against a quay comprises a boom (8) able to span across the ship, a crab able to travel along that boom, and hoisting means for containers suspended from the crab. The boom is supported by a mobile supporting structure (10) on the quay and by a floating supporting structure (9) on the seaward side of the ship. The land based supporting structure has an extensible tower whereby the boom may be kept horizontal. The floating supporting structure comprises two independently manoeuverable barges (17, 18) able to be secured end to end for travelling and side by side for crane operation. One barge carries …
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 January 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 2012.
- 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.