Melting method and device using orientable multipurpose lance/burner units
CA 2334392 A1 · Owner: Seravalli, Luciano · Inventors: Londero, Lucio; Contardo, Claudio; Seravalli, Luciano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Device to deliver comburent and combustible gases such as oxygen, methane or , similar, and/or solid combustible materials inside a melting container the , device comprising a first unit (18) functioning as a burner and/or supersonic lance, and a second unit (19) functioning as a burner and/or carbon lance the , units (18, 19) being reciprocally oriented so that the respective streams delivered (21, 22) meet around a point (20) located above or around the upper level of the layer of slag (17), giving rise during the normal melting cycle, to a substantially stoichiometrically balanced reaction between oxygen and carbon. Melting method using at least one of the devices as above.
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 June 3, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 3, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2021.
- 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.