Patent Yard Sign in
Expired Canadian patentCanada

Method and device for descaling a metal strip

CA 2779481 C · Owner: Sms Siemag Aktiengesellschaft · Inventors: Brisberger, Rolf; Senokosov, Andrei Evgenievich; Frommann, Klaus

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

The invention concerns a method and a device for descaling a metal strip (1) especially a hot-rolled strip of normal steel or a hot-rolled or cold-rolled strip of austenitic or ferritic stainless steel in which the metal strip (1) is guided in a direction of conveyance (R) through at least one plasma descaling unit (2 3) in which it is subjected to a plasma descaling. The objective of the invention is to improve the production of this type of metal strip. To this end the metal strip (1) is subjected to an automatically controlled cooling process in a cooling unit (4 5) following the plasma descaling in the one or more plasma descaling units (2 3) in such a way that it has a well-defined …

Read the whole patent

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 16, 2006 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 16, 2006
GrantedDecember 18, 2012
Term endedMarch 16, 2026
Patent numberCA 2779481 C
Classification (IPC)B21B45/06 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMarch 16, 2006Patent grantedDec 18, 2012Term endedMarch 16, 2026

Sources & verification

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