Rail system having wheel-engaged hydraulic piston-and-cylinder assembly, and such an assembly
CA 1136749 A · Owner: Hoogovens Ijmuiden B.V. · Inventors: De Jong, Hendrikus; Pelt, Cornelis P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
1 -, "Rail system having wheel-engaged hydraulic piston-andcylinder assembly, and such an assembly" ABSTRACT OF THE DISCLOSURE, In a rail system one or more hydraulic assemblies comprising a movable cylinder (6) with a wheel-engaged rounded head (7) and a fixed piston (4) within the cylinder (6) are located adjacent a running rail (1). When engaged by passing rail wheels (2) the assembly provides pressurized fluid which is fed into a pressure line which leads to means for switching a set of points. Energy is thus extracted from moving rail vehicles and it is unnecessary to provide long-distance power supplies to a set of points.
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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
- Granted November 30, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 1999.
- 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.