Locomotive compressed air aftercooler unit
CA 2213077 C · Owner: Westinghouse Air Brake Company · Inventors: Goettel, Walter E.; Wagner, Daniel G.; Cunkelman, Brian L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of converting an existing locomotive compressed air system having no aftercooler to one having an aftercooler. The method includes the steps of removing at least a portion of a pipe connecting an existing air compressor to elongated piping located on the locomotive for cooling compressed air supplied by the compressor and substituting therefor an aftercooler unit adapted to be mounted in the locomotive and connected between such existing air compressor and an existing pipe leading to a reservoir of compressed air located on the locomotive.
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 14, 1997 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2019.
- 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.