Train brake performance monitor
CA 2192151 C · Owner: Westinghouse Air Brake Company · Inventors: Kull, Robert C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus for monitoring brake performance and updating information relating to brake performance while a train is in motion. A computer on the train is provided with inputs for grade information, axle speed brakepipe pressure, and locomotive tractive effort. During brake applications when the train is in motion, calculations are made by the computer to update parameters which relate to braking performance and, to generate signals representing those parameters.
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 December 5, 1996 and granted April 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 5, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2018.
- 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.