Railway emulation brake
CA 2290162 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
An apparatus and method for low power ECP brake emulation in a freight train having ECP equipped cars and one or more non-ECP equipped locomotives wherein power for the ECP equipment is provided by the 74 VDC locomotive battery. The apparatus includes an adapter for interfacing the locomotive MU cable and the ECP wire to supply sufficient power to operate the ECP equipment on each car indefinitely in a low power emulation mode. The method includes interfacing the locomotive MU cable to the ECP wire implementing a low power emulation mode wherein pneumatic signals sent via the brake pipe are detected by pressure sensors and communicated to ECP control waives for changing the brake cylinder …
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 November 19, 1999 and granted January 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 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.