Working method and installation for the flexible and economical pickling and cold-rolling of metal strips
CA 2358869 A1 · Owner: Sms Demag Ag · Inventors: Hansen, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a working method and an installation for the pickling and cold-rolling of metal strips. Said installation is comprised of a metal pickling device, of a winder arrangement provided on the winding side of the metal pickling device, and of a cold rolling mill which are all arranged in a line. The invention is characterized by the alternative sequence of subsequent working steps: a) The strip exiting the metal pickling device for a first , reduction pass, is introduced into the cold rolling mill while bypassing the winder arrangement and is rolled out in a plurality of shaping passes or; b) the strip exiting the metal pickling device is wound into a coil on the …
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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 January 18, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 18, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.