Continuous rolled rod cooling and cleaning
CA 1072425 A · Owner: Southwire Company · Inventors: Duke, John C.; Chia, Enrique C.; Cofer, Daniel B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for treating continuously cast and rolled copper rod using a non-acid liquid treating composition for effecting removal of oxide scale present on the surface of the rod as it emerges from the rolling mill and for cooling the rod prior to coiling. One or more treating zones are provided between the rolling mill and the coiling machine. The treating composition is preferably an aqueous solution including one or more of aliphatic monohydroxy alcohols polyhydroxy alcohols, ketones; and alkyl and alkanol primary amines secondary amines, and tertiary amines; or mixtures thereof. The treating solution is recirculated and monitored with the pH being maintained at a value in excess of 7.
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 February 26, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 1997.
- 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.