Bainitic core grinding rod
CA 1315254 C · Owner: Mc (Bvi) Limited · Inventors: Bruner, James P.; Arnett, Charles R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A carbon or alloy steel heat treated grinding rod having improved wear resistance and breaking resistance for use in a rotating grinding mill. The surfaces of the rod has a martensitic microstructure having a hardness of at least HRC 55. The core of the rod has a bainitic microstructure having a hardness of at least HRC 40. A preferred rod composition includes at least .7% carbon, at least .25% of molybdenum, at least .25% chromium less than .7%, manganese, the balance iron and unavoidable impurities all percentages by, weight.
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 March 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 30, 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.