Grinding head assembly
CA 1214641 A · Owner: Loram Maintenance Of Way, Inc. · Inventors: Vieau, Robert G.; Klempke, William D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A grinding head assembly for use in maintaining railroad tracks. The invention is typically used in longitudinally spaced series to grind the surface of the rails to remove corrugations, to restore a smooth regular travel surface. The grinding head assembly is characterized by an annular backing plate and grinding wheel designed for ease of mounting and maximum use of the grinding wheel.
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
- Granted December 2, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 2003.
- 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.