Truck with composite side rails
CA 2279736 C · Owner: Alstom Transport Sa · Inventors: Landrot, Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a bogie adapted to be secured to and supported by the wheels and including at least two wheel axles at least one side rail reaching from the axles to an approximately central part of the length of the bogie and axle boxes (4) in which the axles are mounted to turn. According to the invention the side rail includes at least one interchangeable elastic blade comprising a primary configurable suspension, in a fibre-based composite material embedded in a resin and an area (61) at each extremity of the side rail is lodged in a side rail sleeve (8) supported on a respective axle box (4) by means of at least one inserted element (9). The invention may be used on rail …
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 August 4, 1999 and granted October 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 4, 2021.
- 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.