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Expired Canadian patentCanada

Process of continuous casting with detection of possibility of break out

CA 1328925 C · Owner: Itoyama, Seiji · Inventors: Iguchi, Hiroaki; Yamanaka, Hiromitsu; Telashima, Tsukasa

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Abstract From the Canadian patent

A continuous casting process introduces factor of temperature variation speed for detecting break out in a cast metal. Introduction of temperature variation speed as parameter representative of the cast metal condition is successful for avoiding the influence of variation of the casting condition fluctuation of the powder to be introduced between the casting mold wall and the cast metal, casting speed and so forth. For achieving accurate detection of break out of the cast metal by introducing the temperature variation factor casting mold wall, temperatures are measured at various measuring points which are circumferentially aligned. Temperature variation speed at each measuring point and …

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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 April 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 29, 1988
GrantedApril 26, 1994
Term endedApril 26, 2011
Patent numberCA 1328925 C
Classification (IPC)B22D11/16

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedNov 29, 1988Patent grantedApril 26, 1994Term endedApril 26, 2011

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.