Sliding joint for welded rail sections
CA 1322355 C · Owner: Progress Rail Services Corporation · Inventors: Cundiff, Harry B.; Crone, Walter G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sliding joint of the type designed to permit expansion and contraction between adjoining ends of rail sections in a single or double track system is characterized by having a rail point defining an extension of one adjoining end which is both lengthened and reinforced along the area adjacent to its juncture with the one adjoining end to more effectively absorb and distribute stresses imparted under wheel loading. A limit stop for the curved end of the rail section is mounted on the base of the joint ahead of the juncture of the rail point with the one adjoining end of the rail so as to further alleviate stresses imparted by the curved rail to the rail point when the curved rail undergoes …
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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 September 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 21, 2010.
- 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.