Roll-stand roll with hydraulically changeable contour
CA 1248785 A · Owner: Bwg Bergwerk- Und Walzwerk-Maschinenbau G.M.B.H. · Inventors: Noe, Andreas L.; Noe, Rolf O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
14562, Abstract of the Disclosure, A roll for a hot- or cold-rolling stand has a core having an outer surface centered on an axis and a pair of axially opposite ends and respective conduits extending through the core and opening adjacent the ends thereof. A sleeve having an outer surface, axially opposite ends and an inner, surface centered on the axis coaxially surrounds the core. One of the surfaces has a central portion projecting radially toward and engaging the other surface between the ends in all-around annular contact. Respective elastic and annular seals engage radially between the ends of the rolls that is, each seal engages between one end of the sleeve and the corresponding end …
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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 17, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 2006.
- 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.