Railway car brake system
CA 2059466 A1 · Owner: Acf Industries, Incorporated · Inventors: Krug, John A.; Willis, William L.; Deet, William T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved brake linkage system for a railway car especially a hopper car, having an air cylinder actuated to move a cylinder lever. The cylinder lever is directly connected to a floating operating lever by a slack adjuster which can be made substantially shorter, lighter and less expensive than slack adjusters of prior art systems. With respect to the prior art the present invention permits use of less linkages shorter, linkages and lighter linkages thus making the overall linkage, system lighter less expensive and more efficient.
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 January 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 2014.
- 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.