Copper converter
CA 1270638 C · Owner: Miyamoto, Yukio · Inventors: Goto, Motoo; Miyamoto, Yukio; Asao, Haruhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A copper converter which includes: a converter body; a plurality of tuyeres disposed to the converter body each, tuyere having an outer end portion; a first concentrate blowing pipe assembly disposed at least one of said tuyeres, the concentrate blowing pipe assembly including an introducing pipe inserted into the at least one tuyere; a blowing unit, connected to the concentrate blowing pipe assembly, for blowing a material including a concentrate through the introducing pipe into the converter; an air supplying unit, disposed to the tuyeres for supplying, pressurized air to the tuyeres; and formations disposed, to said outer end of each tuyere and said concentrate blowing pipe assembly, …
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 June 26, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 26, 2007.
- 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.