Wagon with lowest self-carrying revolving platform; hydraulic hoist bridge
CA 2135879 A1 · Owner: Walda, Nanne Marcel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new wagon is disclosed for carrying 4 meter high semi-trailers on all alpine railways. This is the first wagon of the world with fully automatic operation and the lowest existing self-carrying revolving platform. The revolving platform can be vertically moved upwards and downwards and in its highest position can be horizontally turned over 40 degrees by means of a hydraulic hoist bridge mounted under the wagon between the rails and upon which rests, an electric/hydraulic revolving plateau. Semi-trailers motor, vehicles with trailers, tank wagons and tank semi-trailers can thus be quickly unloaded and loaded over station platforms having the same height as the revolving platform located …
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 March 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2015.
- 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.