Equipment for the even feed of pulverous material to a concentrate burner of suspension smelting furnace
CA 2374888 A1 · Owner: Lahtinen, Markku · Inventors: Lahtinen, Markku; Peltoniemi, Kaarle; Kojo, Ilkka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to equipment for the feed of pulverous material to a concentrate burner of a suspension-smelting furnace so that the feed of solid , finely divided material into the furnace is distributed evenly in the concentrate burner. According to the invention a vibrating feeder is located , between the raw material conveyor and the actual burner and the concentrate , burner feed pipes are equipped with blades for distributing the material.
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
- Filed May 12, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 12, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 12, 2022.
- 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.