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Expired Canadian patentCanada

Apparatus for connecting a dummy strip to the leading end of a strip casting in the start-up of continuous casting of strip metal

CA 1281529 C · Owner: Lax, Hermann · Inventors: Lax, Hermann; Kolakowski, Manfred; Grothe, Horst

CIPO record

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Abstract From the Canadian patent

Means are provided for connecting the proximal end of a dummy strip to the distal (i.e. leading) end of a strip casting, in which a throw-away element serving both as a connector and a heat sink for chilling the metal adjacent to the connector is removably mounted on the proximal end of the dummy strip, with a slightly resilient sealing element holding both the dummy strip and the connector-heat sink element centrally of the mold cavity, and with the connector-heat sink spaced from the walls of the mold by a narrow gap and also having means for both chilling and positively interlocking with the metal of the distal end of the cast strip when it congeals.

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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 March 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 3, 1987
GrantedMarch 19, 1991
Term endedMarch 19, 2008
Patent numberCA 1281529 C
Classification (IPC)B22D11/08 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedFeb 3, 1987Patent grantedMarch 19, 1991Term endedMarch 19, 2008

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