Multifluid nozzle for blowing gaseous fluids into metal-containing molten materials
CA 2064417 A1 · Owner: Metallgesellschaft Aktiengesellschaft · Inventors: Werner, Dietrich; Vydra, Karel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multifluid nozzle is described which, serves to blow gaseous fluids into metal-containing molten materials and which will effect a thorough and fast mixing of the fluids when they have left the nozzle and even when material of the nozzle has been consumed. A nozzle core (1) consists of a roundsection solid rod, which is formed in its outside surface with helical grooves (2), which have a lead angle of 15 to 60 degrees relative to the nozzle axis. The nozzle core (1) is surrounded by one or more annular nozzle tubes (3, 4), which have a smooth inside surface and are formed on their outside surface with grooves (5, 6). The outermost nozzle tube (4) is surrounded by an annular outer tube …
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 March 30, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2014.
- 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.