Rolling mill stand
CA 2055184 A1 · Owner: Bwg Bergwerk- Und Walzwerk-Maschinenbau G.M.B.H. · Inventors: Schwerdt, Wilhelm; Noe, Oskar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rolling mill stand with cambered work rolls and backup rolls for the work rolls. Two back-up rolls are provided for the lower work roll. The back-up rolls are mounted so as to be swingable on a circular path about the center of the lower work roll in order to obtain a continuous adjustment of the support effect. As a result, it is simultaneously possible to continuously adjust the camber in the roll gap during the rolling procedure in dependence on the rolling force acting on the rolls.
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 November 8, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2013.
- 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.