Submerged nozzle for steel casting
CA 1309838 C · Owner: Kawashima, Teruhisa · Inventors: Sugiura, Sadanobu; Tokunaga, Kunishige; Kawashima, Teruhisa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A submerged nozzle for use in steel casting includes a nozzle body, a nozzle passage formed through the nozzle body so as to extend from an upper end of the nozzle body to a lower portion of the nozzle body in its longitudinal direction a plurality of, discharge ports formed in the lower portion of the nozzle body so as to face outwardly, and a projecting part provided around the nozzle body at an upper end of the discharge ports and having a slanting surface which is located from the upper end of the discharge ports and inclined upwardly in a positive direction. The discharge ports are connected to the nozzle passage. The projecting part has a thickness (A) ranging from 5 mm to 50 mm, a …
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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 November 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 2009.
- 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.