26-type electronic controlled pneumatics
CA 2243799 A1 · Owner: Westinghouse Air Brake Company · Inventors: Kushnir, Lawrence M. Jr.; Romansky, Michael E.; Santoro, Ralph Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for electronically controlling the pneumatics of an air braking system for a train comprising a locomotive brake control valve disposed on a locomotive for controlling an application and release of brakes a tramline, communication system for receiving at least this brake application or brake release signal from the locomotive brake control valve and for sending this signal to an electronic controlled pneumatic car control unit placed on the cars within the train, an electronic controlled pneumatic car control unit for receiving this signal and for sending a brake application or brake release command to a pneumatic unit, and a pneumatic unit in the cars for reacting to …
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 July 24, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 24, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 24, 2020.
- 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.