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Expired Canadian patentCanada

Oscillator for continuous casting mold

CA 2128623 C · Owner: Behrends, Gunther · Inventors: Behrends, Gunther

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A mould oscillator for a continuous casting machine comprises at least two tensile elements (46 48, 50) disposed so as to, always remain in tension. The tensile elements (46 48, 50) lie on respective radii extending from the radius of curvature of the casting radius R and are anchored to a fixed external frame (40 42, 44). The oscillating drive (90) is in the form of a cam (104) which moves a follower (108) pivoted at one end. A transfer element (124) between the follower (108) and the mould (20) transmits the oscillation to the mould (20) and the oscillation stroke is varied by adjustment means (142) changing the distance of the cam (104) from the pivoted end of the follower (108).

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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

  • Filed March 9, 1993 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 9, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 9, 1993
GrantedDecember 15, 1998
Term endedMarch 9, 2013
Patent numberCA 2128623 C
Classification (IPC)B22D11/04 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMarch 9, 1993Patent grantedDec 15, 1998Term endedMarch 9, 2013

Sources & verification

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