Rail brake
CA 2313342 C · Owner: Tremblay, Ron · Inventors: Hamer, Stephen; Tremblay, Ron
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A braking system is provided for rail equipment supported for rolling movement on the rails of a railway. The braking system includes a pair of braking, elements arranged to be supported laterally spaced apart on the rail equipment for, engaging the respective rails of the railway. Each braking element includes an upper brake block for selectively engaging a top side and a side brake block for, selectively engaging an inner side of the corresponding rail. Actuators are provided, for urging the braking elements downward and outward in relation to the rail equipment. The actuators engage the braking elements with the respective rails to, provide a wedging action between respective inner …
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 4, 2000 and granted September 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2022.
- 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.