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Expired Canadian patentCanada

Support device for moving metal strip

CA 1278917 C · Owner: Sato, Kuniaki · Inventors: Harada, Masahiro; Nakajima, Yasuhisa; Muramoto, Harumasa

CIPO record

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Drawings and full text

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

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Abstract From the Canadian patent

Abstract A support device for a moving strip comprises floaters arranged only below the moving strip for jetting fluid against a lower surface of the strip to float it. A plurality of upright baffle plates are provided on a pressure receiving surface of each the floater in opposition to the lower surface of the strip. The baffle plates extend in moving directions of the strip and are aligned with each other in width directions of the strip. Each the floater is provided with at least one support roll extending in a width direction of the strip and movable into a lower position and a higher position higher than the highest portion of the floater. With this arragement the moving strip is …

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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 January 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 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.
FiledApril 15, 1986
GrantedJanuary 15, 1991
Term endedJanuary 15, 2008
Patent numberCA 1278917 C
Classification (IPC)C21D9/63 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedApril 15, 1986Patent grantedJan 15, 1991Term endedJan 15, 2008

Sources & verification

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